411 REFERENCE · Wikipedia
2011 Super Outbreak
Reference material by Wikipedia contributors. This retains its source identity and is not 411 news reporting.
Largest tornado outbreak in recorded history
December 2025
infobox 1/2 300 Tornado Super Outbreak (2011-04-27 GOES-13).gif Radar image of the 2011 Tuscaloosa tornado April 27, 2011 2210Z.png Damage, from Tuscaloosa-Birmingham, Alabama tornado, (viewed by Secretary Shaun Donovan during visit to the state) - DPLA - 543b63cbbb54dab5e37a2b3dbb61a0a0.jpg 2011 Hackleburg-Phil Campbell Tornado Damage (NWS).jpg Smithville, MS post office damage.jpg infobox 1/2 300 Apr 27 2011 tornado outbreak Southern USA.jpg Radar image of the 2011 Tuscaloosa tornado April 27, 2011 2210Z.png Damage, from Tuscaloosa-Birmingham, Alabama tornado, (viewed by Secretary Shaun Donovan during visit to the state) - DPLA - 543b63cbbb54dab5e37a2b3dbb61a0a0.jpg 2011 Hackleburg-Phil Campbell Tornado Damage (NWS).jpg Smithville, MS post office damage.jpg Clockwise from top: The storm system responsible for the outbreak on April 27, heavy damage to buildings in Tuscaloosa, Alabama after an EF4 tornado, flags raised above a post office in Smithville, Mississippi after an EF5 tornado hit the town, an aerial view of EF5-rated tornado damage in Hackleburg, Alabama after a violent tornado moved through the town, a visible hook echo that would produce a violent tornado in Tuscaloosa April 25–28, 2011
368 confirmed(Record for a continuous outbreak) 3 days, 7 hours, 18 minutes EF5 Tornadic – 210 mph km/h on (Hackleburg–Phil Campbell, AL EF5 on April 27) Non-tornadic – 113 mph km/h on (near Bay, AR on April 27) 4.5 in cm on in Saltville, Virginia on April 27
990 https://www.wpc.ncep.noaa.gov/html/sfc-zoom.php WPC surface analysis zoom, pan, animation and archives wpc.ncep.noaa.gov June 13, 2023 November 18, 2022 https://web.archive.org/web/20221118235404/https://www.wpc.ncep.noaa.gov/html/sfc-zoom.php live 19.26 in cm on in Springdale, Arkansas 6 in cm in Bayfield County, Wisconsinhttps://www.nohrsc.noaa.gov/nsa/index.html?region=National&year=2011&month=4&day=28&units=e National Snow Analyses - NOHRSC - The ultimate source for snow information April 28, 2011 National Oceanic and Atmospheric Administration March 23, 2025
324 (+24 non-tornadic) 3,100+CBS News https://www.cbsnews.com/news/tornado-victims-seek-comfort-in-sunday-services/ Tornado victims seek comfort in Sunday services May 1, 2011 April 27, 2023 April 27, 2023 https://web.archive.org/web/20230427165406/https://www.cbsnews.com/news/tornado-victims-seek-comfort-in-sunday-services/ liveNational Weather Service in Little Rock, Arkansas National Oceanic and Atmospheric Administration April 27, 2011 April 28, 2011 Heavy Rain/Severe Weather on April 23–27, 2011 http://www.srh.noaa.gov/lzk/?n=hydro0411.htm April 30, 2011 https://web.archive.org/web/20110430084609/http://www.srh.noaa.gov/lzk/?n=hydro0411.htm liveCNN http://www.cnn.com/2011/US/05/01/severe.weather/index.html?hpt=T2/ Top federal officials tour, promise help to tornado-ravaged South May 1, 2011 May 1, 2011 November 9, 2012 https://web.archive.org/web/20121109204826/http://www.cnn.com/2011/US/05/01/severe.weather/index.html?hpt=T2/ live $10.2 billion (2011 USD)$US 10.2 2011 2 billion (US USD) (Second-costliest tornado outbreak on record; costliest on record when accounting for inflation)Billion-Dollar Weather and Climate Disasters https://www.ncei.noaa.gov/access/billions/events National Centers for Environmental Information May 9, 2023 January 10, 2023 https://web.archive.org/web/20230110020022/https://www.ncei.noaa.gov/access/billions/events live Southern, Midwestern, & Eastern United States
tornado outbreaks of 2011
The 2011 Super Outbreak was the largest and costliestWhen adjusted for inflation. The tornado outbreak of March 13–16, 2025 caused $11 billion in damages,October 2025 Natural Catastrophe and Climate Report https://www.ajg.com/gallagherre/-/media/files/gallagher/gallagherre/news-and-insights/2025/october/natural-catastrophe-and-climate-report-q3-2025.pdf October 15, 2025 Gallagher Re however the 2011 Super Outbreak remains the costliest when adjusted. note Inflation tornado outbreak ever recorded, taking place in the Southern, Midwestern, and Northeastern United States from April 25 to 28, 2011, leaving catastrophic destruction in its wake.Tornado Debris Characteristics and Trajectories During the 27 April 2011 Super Outbreak as Determined Using Social Media Data Bulletin of the American Meteorological Society 94 9 1371–1380 10.1175/BAMS-D-12-00036.1 2013 Knox John A. Rackley Jared A. Black Alan W. Gensini Vittorio A. Butler Michael Dunn Corey Gallo Taylor Hunter Melyssa R. Lindsey Lauren Phan Minh Scroggs Robert Brustad Synne 2013BAMS...94.1371K freehttps://ams.confex.com/ams/93Annual/webprogram/Paper223690.html Abstract: Comparative Analysis of Multiple Tornado Tracks During Severe Weather Outbreaks: 2011 Super Outbreak, Alabama (93rd American Meteorological Society Annual Meeting) confex.com January 8, 2013 j Sanders j. Sanders October 12, 2015 December 8, 2015 https://web.archive.org/web/20151208080536/https://ams.confex.com/ams/93Annual/webprogram/Paper223690.html livehttp://www.noaanews.noaa.gov/april_2011_tornado_information.html https://web.archive.org/web/20110511082657/http://www.noaanews.noaa.gov/april_2011_tornado_information.html dead May 11, 2011 April 2011 tornado information May 9, 2011 National Oceanic and Atmospheric Administration May 16, 2011http://www.srh.noaa.gov/bmx/?n=climo_2011torstats https://web.archive.org/web/20110806104324/http://www.srh.noaa.gov/bmx/?n=climo_2011torstats dead August 6, 2011 New Tornado Records Set for Alabama National Oceanic and Atmospheric Administration National Weather Service in Birmingham, Alabama November 1, 2011 Over 175 tornadoes struck Alabama, Mississippi, and Tennessee, which were the most severely damaged states. Other destructive tornadoes occurred in Arkansas, Georgia, Kentucky, Louisiana, New York, and Virginia, with storms also affecting other states in the Southern and Eastern United States. In total, 368 tornadoes were confirmed by NOAA's National Weather Service (NWS) and Government of Canada's Environment Canada in 21 states from Texas to New York to southern Canada. Widespread and destructive tornadoes occurred on each day of the outbreak. April 27 was the most active day, with a record 224 tornadoes touching down that day from midnight to midnight CDT (05:00–05:00 UTC). Four of the tornadoes were rated EF5, which is the highest ranking on the Enhanced Fujita scale; typically these tornadoes are recorded no more than once a year, and may not be recorded for several consecutive years.
In total, 348 people were killed as a result of the outbreak, including 324 tornado-related deaths across six states and 24 fatalities caused by other thunderstorm-related events such as straight-line winds, hail, flash flooding or lightning.Jason Morton The Tuscaloosa News May 5, 2011 May 5, 2011 List of missing at 25 http://www.tuscaloosanews.com/article/20110505/NEWS/110509813/1291/dateline?Title=List-of-missing-at-25 September 27, 2012 https://web.archive.org/web/20120927042537/http://www.tuscaloosanews.com/article/20110505/NEWS/110509813/1291/dateline?Title=List-of-missing-at-25 live In Alabama alone, 238 tornado-related deaths were confirmed by the Storm Prediction Center (SPC) and the state's Emergency Management Agency.http://www.spc.noaa.gov/climo/torn/fataltorn.html Annual Fatal Tornado Summaries National Oceanic and Atmospheric Administration Storm Prediction Center November 1, 2011 June 13, 2011 https://web.archive.org/web/20110613140257/http://www.spc.noaa.gov/climo/torn/fataltorn.html livehttp://ema.alabama.gov/filelibrary/PressRelease/NR%20Latest%20Fatalites%20249_043011.pdf Number of weather related fatalities 236 April 30, 2011 Alabama Emergency Management Agency State of Alabama April 30, 2011 dead https://web.archive.org/web/20161224082245/http://ema.alabama.gov/filelibrary/PressRelease/NR%20Latest%20Fatalites%20249_043011.pdf December 24, 2016 April 27's 316 fatalities were the most tornado-related fatalities in the United States in a single day since the "Tri-State" outbreak on March 18, 1925 (when at least 751 people were killed).http://www.crh.noaa.gov/mkx/?n=torout Famous Large Tornado Outbreaks In The U.S. National Weather Service in Milwaukee/Sullivan, Wisconsin National Oceanic and Atmospheric Administration November 1, 2011 November 22, 2011 https://web.archive.org/web/20111122140718/http://www.crh.noaa.gov/mkx/?n=torout liveCNN http://www.cnn.com/2011/US/04/30/severe.weather/index.html?hpt=T2/ Harrowing stories emerge from storm's aftermath April 30, 2011 April 30, 2011 November 9, 2012 https://web.archive.org/web/20121109204346/http://www.cnn.com/2011/US/04/30/severe.weather/index.html?hpt=T2/ liveCBS News https://www.cbsnews.com/news/south-mourns-victims-of-deadly-tornadoes/ South mourns victims of deadly tornadoes April 30, 2011 May 1, 2011NBC News/AP News and Reuters (jointly produced article) https://www.nbcnews.com/id/wbna42834400 Twister Outbreak Is Second Deadliest in History April 30, 2011 April 30, 2011 February 15, 2020 https://web.archive.org/web/20200215095156/http://www.nbcnews.com/id/42834400 live Nearly 500 preliminary local storm reports were received for tornadoes over four days, including 292 in 16 states on April 27 alone. This event was the costliest tornado outbreak in United States history, with total damage reaching $10.2 billion (equivalent to $US 10.2 2011 billion in US).National Centers for Environmental Information 2020 April 28, 2020 Billion-Dollar Weather and Climate Disasters: Events https://www.ncdc.noaa.gov/billions/events/US/1980-2020 August 11, 2021 https://web.archive.org/web/20210811152237/https://www.ncdc.noaa.gov/billions/events/US/1980-2020 live In 2023, tornado expert Thomas P. Grazulis created the outbreak intensity score (OIS) as a way to rank various tornado outbreaks. The 2011 Super Outbreak received an OIS of 383, making it the second most intense tornado outbreak in recorded history behind only the 1974 Super Outbreak.Significant Tornadoes outbreaks preview http://www.tornadoproject.com/book/outbreaks_section.htm September 13, 2023 www.tornadoproject.com August 29, 2023 https://web.archive.org/web/20230829160721/http://www.tornadoproject.com/book/outbreaks_section.htm live
Meteorological synopsis
Meteorological history of the 2011 Super Outbreak
Setup during April 25–27
thumb|left|The 0000z atmospheric sounding, taken from Birmingham, Alabama on April 27
The outbreak was caused by a vigorous upper-level trough that moved into the Southern Plains states on April 25. An extratropical cyclone developed ahead of this upper-level trough between northeastern Oklahoma and western Missouri, and moved northeastward.Mike Soltow April 25, 2011 Storm Summary Number 11 For Central U.S. Heavy Rain Event http://www.wpc.ncep.noaa.gov/winter_storm_summaries/2011/storm11/stormsum_11.html live https://web.archive.org/web/20131230232427/http://www.wpc.ncep.noaa.gov/winter_storm_summaries/2011/storm11/stormsum_11.html December 30, 2013 April 30, 2011 Weather Prediction Center Conditions were similar on April 26, with a predicted likelihood of severe thunderstorms, including an extended threat of strong to violent long-track tornadoes throughout the afternoon and evening; mixed-layer CAPE values were forecast to be around 3000–4000 J/kg, around east Texas, Louisiana, and Arkansas. The storm mode on April 26 was predicted to include mostly discrete tornadic supercells during both the afternoon and the early evening, shifting over to a mesoscale convective complex, with more of a threat of damaging winds and hail during the nighttime.April 26, 2011 April 26, 2011 1630 UTC Day 1 Convective Outlook http://www.spc.noaa.gov/products/outlook/archive/2011/day1otlk_20110426_1630.html live https://web.archive.org/web/20111028035726/http://www.spc.noaa.gov/products/outlook/archive/2011/day1otlk_20110426_1630.html October 28, 2011 April 30, 2011 Storm Prediction Center National Oceanic and Atmospheric Administration
right vertical Storm Prediction Center outlooks on April 27, 2011 190 Day11630UTCOlook.gif SPC Outlook shows a High Risk of Severe Weather within the southern U.S SPC tornado Outlook, 45%, April 27, 2011.gif SPC Outlook at 16:30 UTC showing a 45% chance for tornadoes in the southern U.S
As the storm system moved eastward toward the Ohio, Mississippi, and Tennessee Valleys on April 27, a very powerful 80–100 knot mid-level jet stream moved into the Ohio and Tennessee Valleys behind the trough and created strong wind shear, along with a low pressure center moving quickly northeastward across those areas on April 27. During the afternoon of April 27, CAPE values were estimated to be in the range of 2000–3000 J/kg across Louisiana and southern Mississippi, with the moderate instability moving northeastward across the southern Tennessee Valley; additionally, temperatures across the southeastern United States ranged from the 70s °F (mid-20s °C) to the lower 90s °F (near 35 °C). Helicity levels ranged from 450 to 600 m2/s2, which supported some significant tornadic activity and strong to violent long-track tornadoes.April 27, 2011 April 27, 2011 1630 UTC Day 1 Convective Outlook http://www.spc.noaa.gov/products/outlook/archive/2011/day1otlk_20110427_1630.html live https://web.archive.org/web/20110430112815/http://www.spc.noaa.gov/products/outlook/archive/2011/day1otlk_20110427_1630.html April 30, 2011 April 30, 2011 Storm Prediction Center National Oceanic and Atmospheric Administration At 06:10 UTC, the SPC issued a second-consecutive, high risk day-one outlook, featuring a 30% hatched risk of tornadoes centered over northern Alabama.Storm Prediction Center Apr 27, 2011 0600 UTC Day 1 Convective Outlook https://www.spc.noaa.gov/products/outlook/archive/2011/day1otlk_20110427_1200.html September 29, 2025 www.spc.noaa.gov At 16:30 UTC (11:30 AM CDT) this region was expanded to include portions of eastern Mississippi, southern Tennessee, and northwest Georgia. Additionally, a rare, 45% hatched risk of tornadoes was introduced along a corridor from Meridian, Mississippi, to Huntsville, Alabama.
Overview
thumb|left|SPC Storm Reports for April 27
A total of 56 severe weather watches were issued by the Storm Prediction Center (SPC) over those four days in the outbreak area. This included 41 tornado watches—10 of which were particularly dangerous situation (PDS) watches—and 15 severe thunderstorm watches.April 25, 2011 Severe Thunderstorm Watch 199 http://www.spc.noaa.gov/products/watch/2011/ww0199.html live https://web.archive.org/web/20140318210200/http://www.spc.noaa.gov/products/watch/2011/ww0199.html March 18, 2014 May 13, 2011 Storm Prediction Center National Oceanic and Atmospheric AdministrationApril 28, 2011 Tornado Watch 256 http://www.spc.noaa.gov/products/watch/2011/ww0256.html live https://web.archive.org/web/20140318222906/http://www.spc.noaa.gov/products/watch/2011/ww0256.html March 18, 2014 May 13, 2011 Storm Prediction Center National Oceanic and Atmospheric Administration The SPC assigns numbers to each severe weather watch issued starting at the beginning of each year; the organization accidentally skipped over two of their allocated watch numbers during this outbreak (numbers 208 and 209).April 25, 2011 SPC Severe Weather Event Review for Monday April 25, 2011 http://www.spc.noaa.gov/exper/archive/event.php?date=20110425 live https://web.archive.org/web/20170407053726/http://www.spc.noaa.gov/exper/archive/event.php?date=20110425 April 7, 2017 April 6, 2017 Storm Prediction Center National Oceanic and Atmospheric Administration The Storm Prediction Center received 292 reports of tornadoes in the preceding 24 hours.April 27, 2011 20110427's Storm Reports (1200 UTC – 1159 UTC) http://www.spc.noaa.gov/climo/reports/110427_rpts.html live https://web.archive.org/web/20110502024631/http://www.spc.noaa.gov/climo/reports/110427_rpts.html May 2, 2011 April 29, 2011 Storm Prediction Center National Oceanic and Atmospheric Administration In addition to setting the record for most tornadoes in a calendar day (223; midnight to midnight CDT (05:00 – 05:00 UTC)), it also broke the record for the most tornado touchdowns in any 24-hour period with 226 from 12:40 a.m. to 12:40 a.m. CDT (05:40 – 05:40 UTC) April 27–28, breaking the old 24-hour record of 148 set by the 1974 Super Outbreak. Of those 226 tornadoes, 59 touched down in Alabama and 83 began in Tennessee, accounting for 62.8 percent of the tornadoes that touched down on April 27.May 2, 2011 April 2011 Tornadoes Break Record For Most Twisters Ever In A Day https://www.huffingtonpost.com/2011/05/02/2011-tornadoes-record-most-in-day_n_856542.html dead https://web.archive.org/web/20121006024251/http://www.huffingtonpost.com/2011/05/02/2011-tornadoes-record-most-in-day_n_856542.html October 6, 2012 December 1, 2012 Huffington Post On April 27 alone, the National Weather Service in Huntsville, Alabama, issued 92 tornado warnings, 31 severe thunderstorm warnings, and seven flash flood warnings.April 25, 2012 Severe Thunderstorm and Tornado Warning Overview http://www.weather.gov/hun/hunsur_2011-04-27_statistics live https://web.archive.org/web/20161221035026/http://www.weather.gov/hun/hunsur_2011-04-27_statistics December 21, 2016 July 14, 2013 National Weather Service in Huntsville, Alabama National Oceanic and Atmospheric Administration The National Weather Service in Birmingham, Alabama issued 49 tornado warnings, and 24 severe thunderstorm warnings.US Department of Commerce NOAA Historic Outbreak of April 27, 2011 https://www.weather.gov/bmx/event_04272011 April 30, 2026 www.weather.gov EN-US In total, 449 tornado warnings were issued on April 27Iowa Environment Mesonet https://mesonet.agron.iastate.edu/wx/afos/list.phtml?source=DMX&by=pil&pil=TOR&year=2011&month=4&day=27&year2=2026&month2=4&day2=30&view=grid&order=asc April 30, 2026 NWS Text Products by Date and Issuance Center or PILIowa Environment Mesonet https://mesonet.agron.iastate.edu/wx/afos/list.phtml?source=DMX&by=pil&pil=TOR&year=2011&month=4&day=28&year2=2026&month2=4&day2=30&view=grid&order=asc April 30, 2026 NWS Text Products by Date and Issuance Center or PIL
Confirmed tornadoes
List of tornadoes in the 2011 Super Outbreak
+ Daily statistics during the 2011 Super OutbreakApril 2011 Storm Data http://www1.ncdc.noaa.gov/pub/orders/IPS/IPS-365AE391-42D1-432E-86E8-60949C642469.pdf National Oceanic and Atmospheric Administration National Climatic Data Center 2011 May 21, 2014 dead https://www.webcitation.org/6Pgz1a6Xa?url=http://www1.ncdc.noaa.gov/pub/orders/IPS/IPS-365AE391-42D1-432E-86E8-60949C642469.pdf May 19, 2014 Datenb Date/Time All dates are based on the local time zone where the tornado touched down; however, all times are in Coordinated Universal Time and dates are split at midnight CST/CDT for consistency.TotalEF-scale ratingDeathsInjuries EF0 EF1 EF2 EF3 EF4 EF5 April 254217204100559 April 26553119410004 April 2722472*8136201143162,986+ April 284718235100351 Total368EF0138*EF1143EF249EF323EF411EF543243,100+
* One tornado touched down in Ontario, Canada on April 27 and was rated as an F0. It is counted as an EF0 in this table.
yes yes center 300 SWITCH:2011superoutbreak.map, 2011superoutbreakEF3+.map 36 -87 4 all tornadoes, EF3+ tornadoes only Map of the damage tracks of tornadoes that occurred during the 2011 Super Outbreak.(Interactive map, click or tap to view in detail)View mapdata (all), View mapdata (EF3+)
Key
#00aac8 EF0 65–85 mph km/h on
#5db350 EF1 86–110 mph km/h on
#ffbb40 EF2 111–135 mph km/h on
#ff7a00 EF3 136–165 mph km/h on
#c70000 EF4 166–200 mph km/h on
#94008a EF5 ≥201 mph km/h on
end
A record 368 tornadoes touched down over the span of four days, 37 of which were EF3+ tornadoes. Four tornadoes were rated EF5 – behind only the 1974 Super Outbreak (7 F5s). Several of the strong to violent tornadoes that formed were exceptionally long-tracked, with six tornadoes on April 27 tracking over 60 mi km. Many tornadoes on the afternoon of April 27 were spawned from a collection of supercells that moved across Mississippi, Alabama, Tennessee, and Georgia.
The period from 2:28 p.m. CDT (1928 UTC) to 9:10 p.m. CDT (0210 UTC) represented nearly seven hours of continuous tornado activity during the height of the outbreak of April 27, during which 94 tornadoes touched down. All fifteen violent EF4+ tornadoes occurred continuously during this time, beginning with the Philadelphia, Mississippi EF5 tornado at 2:30 p.m. CDT (1930 UTC) and concluding with the dissipation of the Lake Martin, Alabama EF4 tornado at 9:09 p.m. CDT (0209 UTC). Several tornadoes from the outbreak were exceptionally long-tracked. Three tornadoes on April 27 travelled over 100 mi km, with a fourth traversing 97 mi km. Seven tornadoes–the Vilonia tornado on April 25 and six tornadoes on April 27–stayed on the ground for over an hour. The long-track Mississippi-Alabama EF4 was down from 2 hours, 53 minutes, the longest duration for a tornado in the outbreak.
Ferndale–Vilonia, Arkansas
Ferndale–Vilonia, Arkansas April 25, 2011, 6:48 p.m. CDT (UTC−05:00) 1 hour, 11 minutes April 25, 2011, 7:59 p.m. CDT (UTC–05:00) Vilonia EF2 tornado 2011.jpg 300 The tornado, seen near Vilonia 130 mph km/h on EF2 4 fatalities, 16 injuriesthe 2011 EF2 tornado the tornado that impacted similar areas in 2014 2014 Mayflower–Vilonia tornado yes
The first tornado of the outbreak to cause more than one death was this long-tracked, extremely large, and destructive high-end EF2 wedge tornado that struck the small town of Vilonia in Faulkner County, Arkansas, around 7:30 p.m. CDT (00:30 UTC) on April 25.National Oceanic and Atmospheric Administration National Weather Service in Little Rock, Arkansas June 7, 2011 December 2, 2012 Heavy Rain/Severe Weather on April 23–27, 2011 http://www.srh.noaa.gov/lzk/?n=rain0411yr.htm October 19, 2012 https://web.archive.org/web/20121019091101/http://www.srh.noaa.gov/lzk/?n=rain0411yr.htm live A tornado warning was issued for the area roughly 30 minutes prior to the tornado's arrival, and the relatively low loss of life was attributed to this lead time.Linda Hicks Log Cabin Democrat April 26, 2011 April 27, 2011 Vilonia firefighter keep busy in cleanup efforts after storm http://thecabin.net/news/local/2011-04-26/vilonia-firefighter-keep-busy-cleanup-efforts-after-storm July 22, 2011 https://web.archive.org/web/20110722172621/http://thecabin.net/news/local/2011-04-26/vilonia-firefighter-keep-busy-cleanup-efforts-after-storm dead A tornado emergency was declared at 7:24 p.m. CDT (00:24 UTC) for the city shortly before the tornado struck.National Oceanic and Atmospheric Administration National Weather Service in Little Rock, Arkansas April 25, 2011 April 27, 2011 Tornado Emergency for Vilonia, Arkansas https://mesonet.agron.iastate.edu/vtec/#2011-O-NEW-KLZK-TO-W-0102 https://web.archive.org/web/20110419050352/http://mesonet.agron.iastate.edu/vtec/ April 19, 2011 Four people were killed in the town and many more were injured. The tornado touched down northwest of Ferndale in Pulaski County at 6:48 p.m. CDT (23:48 UTC), downing trees and transmission towers at EF1 intensity.http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=289605 NCDC Storm Events Database National Oceanic and Atmospheric Administration National Climatic Data Center 2011 June 12, 2014 December 30, 2013 https://web.archive.org/web/20131230232234/http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=289605 live It continued northeast of Natural Steps, severely damaging a small church and downing numerous trees, one of which landed on a house.http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=289609 NCDC Storm Events Database National Oceanic and Atmospheric Administration National Climatic Data Center 2011 June 12, 2014 December 30, 2013 https://web.archive.org/web/20131230235316/http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=289609 live The tornado continued to knock down trees as it passed near Roland, several of which landed on homes. The tornado reached EF2 strength as it crossed into Faulkner County and passed southeast of Mayflower, downing numerous trees and power lines and damaging homes and outbuildings. Past Mayflower, it continued towards Vilonia and struck a mobile home park, where numerous mobile homes were destroyed and the four fatalities occurred. Two of the fatalities occurred when a couple attempted to take shelter in a cargo container, which was thrown 150 yd m and deposited near a pond. Several other people were injured in this area as well. The tornado maintained EF2 intensity as it moved directly through Vilonia, damaging numerous homes and businesses and flipping several semi-trucks. The American Red Cross indicated that approximately 34 site-built houses and 62 mobile homes were destroyed, 91 site-built homes and 41 mobile homes suffered major damage, 145 site-built houses and 43 mobile homes had minor damage, and 53 site-built houses and 38 mobile homes were affected in some other way in the Vilonia area.http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=289645 NCDC Storm Events Database National Oceanic and Atmospheric Administration National Climatic Data Center 2011 June 12, 2014 December 30, 2013 https://web.archive.org/web/20131230235956/http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=289645 live One of the mobile homes was picked up and flipped, and the home's two bathtubs were found over a hill about 40 yd m away. The lone occupant of the mobile home sustained major injuries.Linda Hicks ArkansasOnline May 22, 2014 June 20, 2014 Vilonia couple continue to recover from 2011 tornado http://www.arkansasonline.com/news/2014/may/22/vilonia-couple-continue-recover-2011-tornado/ November 27, 2014 https://web.archive.org/web/20141127223712/http://www.arkansasonline.com/news/2014/may/22/vilonia-couple-continue-recover-2011-tornado/ live After moving through Vilonia, the tornado weakened to EF1 strength as it moved into White County and passed west of El Paso, where trees were blown over onto houses (damaging several roofs), barns and outbuildings were destroyed, an RV and the trailer portion of a tractor-trailer were overturned, and hundreds of trees were downed. The tornado finally dissipated north of Joy at 7:59 p.m. CDT (00:59 UTC), after having travelled just over 51 mi km. At its widest point, the tornado was 1.64 mi km wide.http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=289615 NCDC Storm Events Database National Oceanic and Atmospheric Administration National Climatic Data Center 2011 June 12, 2014 December 30, 2013 https://web.archive.org/web/20131230233609/http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=289615 live Following the tornado, 85 members of the U.S. National Guard were deployed to assist in search and rescue, debris clearing, security and traffic control.Lindsey Tugman KTHV April 26, 2011 April 27, 2011 120 Guardsmen called to assist in Vilonia, Hot Springs Village http://www.todaysthv.com/news/article/154941/2/120-Guardsmen-called-to-assist-in-Vilonia-Hot-Springs-Village dead https://web.archive.org/web/20110429052340/http://www.todaysthv.com/news/article/154941/2/120-Guardsmen-called-to-assist-in-Vilonia-Hot-Springs-Village April 29, 2011
On April 27, 2014, three years and two days after this tornado, a violent EF4 tornado touched down west of Ferndale and moved along almost the same path as this tornado, causing 16 fatalities and many injuries. However, it affected more of Mayflower than this tornado did and caused greater damage all along the path, especially in Vilonia, before lifting near El Paso.National Oceanic and Atmospheric Administration National Weather Service in Little Rock, Arkansas May 29, 2014 June 20, 2014 Tornadoes/Flooding on April 27–28, 2014 http://www.srh.noaa.gov/lzk/?n=svr0414c.htm dead https://web.archive.org/web/20140502002121/http://www.srh.noaa.gov/lzk/?n=svr0414c.htm May 2, 2014
Philadelphia–Kemper County, Mississippi
Philadelphia–Kemper County, Mississippi April 27, 2011, 2:30 p.m. CDT (UTC−05:00) 30 minutes April 27, 2011, 3:00 p.m. CDT (UTC−05:00) 2011 Philadelphia, MS tornado.jpg 300 The tornado seen northeast of Philadelphia 205 mph km/h on EF5 3 fatalities, 8 injuries
2011 Philadelphia, Mississippi tornado
This violent, fast moving and destructive tornado, which became the first EF5 tornado of the outbreak, touched down near the city of Philadelphia, Mississippi, on April 27. The tornado touched down at 2:30 p.m. CDT (19:30 UTC) and traveled for nearly 29 mi km through Neshoba, Kemper, Winston, and Noxubee Counties, reaching a maximum width of a 1/2 mi km on.http://www.srh.noaa.gov/mrx/?n=tor_outbreak_map One Storm Amongst Many National Oceanic and Atmospheric Administration National Weather Service in Morristown, Tennessee April 27, 2012 December 2, 2012 May 7, 2011 https://web.archive.org/web/20110507032544/http://www.srh.noaa.gov/mrx/?n=tor_outbreak_map liveSeptember 8, 2011 Neshoba/Kemper/Winston/Noxubee Counties Tornado http://www.srh.noaa.gov/jan/?n=2011_04_25_27_neshoba_kemper_winston_noxubee dead https://web.archive.org/web/20151029024323/http://www.srh.noaa.gov/jan/?n=2011_04_25_27_neshoba_kemper_winston_noxubee October 29, 2015 December 2, 2012 National Weather Service in Jackson, Mississippi National Oceanic and Atmospheric Administration The tornado killed three people, injured eight others, and caused $1.1 million in damage across its path.National Weather Service Office in Jackson, Mississippi National Centers for Environmental Information 2011 May 14, 2016 Mississippi Event Report: EF5 Tornado https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=309257 June 5, 2016 https://web.archive.org/web/20160605115753/https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=309257 live
National Weather Service Office in Jackson, Mississippi National Centers for Environmental Information 2011 May 14, 2016 Mississippi Event Report: EF5 Tornado https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=309261 March 4, 2016 https://web.archive.org/web/20160304063643/http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=309261 live
National Weather Service Office in Jackson, Mississippi National Centers for Environmental Information 2011 May 14, 2016 Mississippi Event Report: EF5 Tornado https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=309265 June 5, 2016 https://web.archive.org/web/20160605115156/https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=309265 live
National Weather Service Office in Jackson, Mississippi National Centers for Environmental Information 2011 May 14, 2016 Mississippi Event Report: EF3 Tornado https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=309267 March 4, 2016 https://web.archive.org/web/20160304083215/http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=309267 live
The supercell thunderstorm that produced this tornado formed around 1:00 p.m. CDT south of Jackson, Mississippi.Eric Carpenter Greg Garrett Jared Allen National Weather Service Office in Jackson, Mississippi February 29, 2012 May 14, 2016 A Storm-scale and Damage Survey Analysis of the East-Central Mississippi Violent Tornado of 27 April 2011 http://www.nwas.org/committees/professionaldevelopment/NWAPD-2012-029_Carpenter_et_al.pdf dead https://web.archive.org/web/20130320054100/http://www.nwas.org/committees/professionaldevelopment/NWAPD-2012-029_Carpenter_et_al.pdf March 20, 2013 Traveling briskly to the northeast, it warranted a severe thunderstorm warning within 25 minutes and was deemed potentially tornadic by 1:36 p.m. CDT.National Weather Service Office in Jackson, Mississippi Iowa Environmental Mesonet National Weather Service April 27, 2011 May 14, 2016 Tornado Warning http://mesonet.agron.iastate.edu/vtec/#2011-O-NEW-KJAN-TO-W-0140/USCOMP-N0Q-201104271840 April 19, 2011 https://web.archive.org/web/20110419050352/http://mesonet.agron.iastate.edu/vtec/#2011-O-NEW-KJAN-TO-W-0140/USCOMP-N0Q-201104271840 live A tornado finally touched down at 2:30 p.m. CDT just east of the Philadelphia Municipal Airport. It quickly intensified and began producing EF5 damage by 2:38 p.m. CDT; extreme ground scouring, up to 1.6 ft m deep in places, occurred in northeastern Neshoba County. After crossing into Kemper County, the tornado obliterated a mobile home, killing all three inside.Meteorological Overview of the Devastating 27 April 2011 Tornado Outbreak July 2014 American Meteorological Society Kevin R. Knupp etal Bulletin of the American Meteorological Society 95 7 1041–1062 10.1175/BAMS-D-11-00229.1 2014BAMS...95.1041K 22335326 It reached EF5 strength a second time near the Kemper–Winston county line where extreme ground scouring again took place and pavement was scoured. Extreme tree damage took place along the track and it ultimately dissipated at 3:00 p.m. CDT about 6 mi km north of Mashulaville.
This was the first tornado to cause F5/EF5 damage in Mississippi since the Candlestick Park tornado on March 3, 1966. Additionally, the tornado was the first to be rated EF5 since 2008.
Cullman–Arab, Alabama
Cullman–Arab, Alabama Cullman tornado.jpg The tornado producing a large horizontal vortex as it approached Cullman. April 27, 2011, 2:40 p.m. CDT (UTC−05:00) 58 minutes April 27, 2011, 3:38 p.m. CDT (UTC−05:00) 300 190 mph km/h on EF4 6 fatalities, 48+ injuries
2011 Cullman–Arab tornado
Rated as a high-end EF4, this highly visible multiple-vortex tornado tracked directly through downtown Cullman.http://okcstormwatcher.wordpress.com/2011/04/27/tornado-emergency-for-cullman-alabama/ OKC Storm Watcher Long Track Tornado Hits Cullman, Alabama (4/27/2011) April 30, 2011 April 30, 2011 April 30, 2011 https://web.archive.org/web/20110430014733/http://okcstormwatcher.wordpress.com/2011/04/27/tornado-emergency-for-cullman-alabama/ live The tornado touched down at 2:40 p.m. CDT (19:40 UTC) on April 27 and tracked a 47 mi km on damage path through Cullman, Morgan, and Marshall Counties, causing six deaths.http://www.srh.noaa.gov/hun/?n=4272011_cullman_county Cullman (AL)/Morgan (AL)/Marshall (AL) EF4 Tornado National Oceanic and Atmospheric Administration National Weather Service Huntsville, Alabama April 27, 2011 March 17, 2012 November 6, 2013 https://web.archive.org/web/20131106031025/http://www.srh.noaa.gov/hun/?n=4272011_cullman_county live The Cullman tornado first touched down on the north side of Lewis Smith Lake and caused light structural damage near Crane Hill before intensifying and tracking directly towards Cullman, snapping numerous trees and heavily damaging several homes. The tornado entered Cullman while being tracked and broadcast live via several tower cameras, including those operated by Birmingham Fox affiliate WBRC (channel 6) and ABC affiliate WBMA-LD/WCFT-TV/WJSU-TV (channels 58, 33, and 40 - "ABC 33/40"), for several minutes. In all, a total of 867 residences and 94 businesses within the city of Cullman were damaged or destroyed.
thumb|left|High-end EF4 damage to a home northwest of Arab, where five fatalities occurred.
The tornado then passed just north of Fairview at EF4 intensity, completely destroying homes and debarking numerous hardwood trees. Pieces of debris were found speared through vehicles in this area. In Ruth, just north of Arab, a large but poorly anchored brick home was swept completely away in this area, with the debris scattered 100 yd m from the foundation. Arab's power grid was completely crippled by the tornado's effects, and many roads in the area were obstructed by downed trees and power lines. The tornado damaged and destroyed several other homes, garages, and sheds north of Union Grove before it crossed the Tennessee River just downstream of Guntersville Dam. It snapped numerous trees in a forested area before dissipating southeast of New Hope.
Widespread power outages occurred in the immediate aftermath of the tornado, which were largely centered in Cullman County.December 2025 Almost 200 power poles in and around Cullman were leveled, and 4,000 volunteers from the Tennessee Valley Authority helped to restore power, although some residents were still without power a week after the tornado.Tennessee Valley Authority April 28, 2021 TVA looks back on 2011 storm recovery efforts https://www.cullmantimes.com/news/tva-looks-back-on-2011-storm-recovery-efforts/article_032d1db8-a82d-11eb-ab66-effc69ff75cf.html November 7, 2024 The Cullman Times en The State of Alabama gave $5,989,728 (2011 USD) to the City of Cullman to aid with recovery efforts, and a further $1,294,892 (2011 USD) to Cullman County.2011 Tornadoes https://adeca.alabama.gov/cdbg-disaster-recovery/2011-tornadoes/ November 7, 2024 ADECA en-US A plan was also set in place by the University of Alabama to help fund recovery efforts.Preliminary Economic and Fiscal Impacts of the April 27, 2011 Tornadoes on Alabama https://cber.culverhouse.ua.edu/2019/07/24/preliminary-economic-and-fiscal-impacts-of-the-april-27-2011-tornadoes-on-alabama/ November 7, 2024 University of Alabama en-US Six people were killed by the tornado; five in Ruth and one in rural Cullman County.April 30, 2011 Alabama tornado casualties: A list of those who died in the April 27, 2011 storms https://www.al.com/wire/2011/04/alabama_tornado_casualties_a_l.html November 7, 2024 AL en The five deaths in Ruth occurred when the tornado directly impacted a well-constructed home at EF4 intensity, leveling the building and killing all of the residents of the home; all were in the same family. The sixth death as a result of the tornado took place in Cullman County, in the tornado's early stages.Damage Assessment Toolkit https://apps.dat.noaa.gov/StormDamage/DamageViewer/ July 29, 2024 National Oceanic and Atmospheric Administration Storm chaser Dan Whittaker, who was observing the tornado as it moved through Cullman near him, stated that "this is not like any tornado I've seen anywhere."Prout Teresa July 27, 2018 Dan Whittaker: Documenting 'the finger of God' https://greensboro.com/dan-whittaker-documenting-the-finger-of-god/article_6f0adff7-06c2-5260-b1a1-ab0f94926f0d.html November 7, 2024 Greensboro News and Record en
Anchor–Okolona–New Wren, Mississippi
Anchor–Okolona–New Wren, Mississippi April 27, 2011, 2:48 p.m. CDT (UTC-05:00) 50 minutes April 27, 2011, 3:38 p.m. CDT (UTC-05:00) 2011 New Wren, Mississippi tornado.png 300 The tornado as seen near New Wren, Mississippi. 150 mph km/h on EF3 4 fatalities, 25 injuries
This intense and long tracked EF3 tornado tore a 37.75 mile (60 km) path across northeast Mississippi, resulting in over $2.27 million in property damage (2011 USD), as well as 4 fatalities and 25 injuries.https://www.ncei.noaa.gov/access/storm-events-database/event-details/310930 NOAAhttps://www.ncei.noaa.gov/access/storm-events-database/event-details/303243 NOAAhttps://www.ncei.noaa.gov/access/storm-events-database/event-details/303247 NOAA
The tornado first touched down at 2:48 p.m. CDT (7:48 UTC) in Webster County just southeast of the town of Slate Springs, quickly uprooting multiple trees before crossing into Calhoun County.https://www.ncei.noaa.gov/stormevents/eventdetails.jsp?id=310930 "NOAA" One home sustained major damage, and a barn was destroyed. The tornado would then move into Chickasaw County,https://www.ncei.noaa.gov/stormevents/eventdetails.jsp?id=303243 "NOAA" where a nearly fully constructed home would have its roof completely torn away. The tornado continued northeast, and rapidly entered and hit the community of Anchor. In Anchor, one death would occur, and several homes would end up completely destroyed by the tornado. Two mobile homes adjacent to each other on County Road 98 were both completely destroyed, with one of them being thrown into uprooted and snapped trees. The tornado would then track south of the city of Houston, where an additional two deaths would occur, and another seventy-four homes would end up completely destroyed, and another ninety-two home sustained major damage. Multiple homes near The Sonora Community would also sustain major damage, with one single-story home reduced to only one interior wall August 2026. Numerous mobile homes would also end up completely destroyed by the tornado. Numerous trees and power lines were also knocked down in the area.https://www.ncei.noaa.gov/stormevents/eventdetails.jsp?id=303247 "NOAA"
thumb|left|A radar image of the tornado south of Houston
The tornado would enter mainly wooded areas within Natchez Trace Parkway, where many trees were snapped, uprooted or debarked, with the worst of the damage being noted between mileposts 204 and 212 https://www.nps.gov/natr/learn/nature/tornado-impacts-2011.htm "Tornado Impacts 2011" The tornado continued it's track, and entered Monroe County, and quickly began to approach the town of Okolona. Numerous homes in the town of Okolona were completely destroyed, with some potentially being completely swept away in the neighborhood of Chapel Grove August 2026. A truck driver in Okolona was killed when his truck was picked up and carried for 1.7 mi km from Highway 45 and dropped behind a home in the Daren community.https://www.djournal.com/monroe/news/wren-responders-reflect-on-2011-ef-3-tornadoes/article_ae10d67e-2155-5bbf-a08e-52d76a025ab5.html https://web.archive.org/web/20260816183343/https://www.djournal.com/monroe/news/wren-responders-reflect-on-2011-ef-3-tornadoes/article_ae10d67e-2155-5bbf-a08e-52d76a025ab5.html live August 16, 2026 subscription "Monroe Journal"
The tornado would then continue into the communities of New Wren and Wren, where many more homes would sustain major damage, and numerous trees would end up debarked. The tornado would dissipate around 3:38 p.m. CDT (8:38 UTC).https://www.ncei.noaa.gov/stormevents/eventdetails.jsp?id=303248 "NOAA"
Hackleburg–Phil Campbell–Tanner–Harvest, Alabama
Hackleburg–Phil Campbell–Tanner–Harvest, Alabama April 27, 2011, 3:05 p.m. CDT (UTC−05:00) 1 hour, 45 minutes April 27, 2011, 4:50 p.m. CDT (UTC−05:00) April 27-2011 img5 (cropped).jpg 300 Photo of the tornado shortly after exiting Phil Campbell 210 mph km/h on EF5 71 fatalities, 145+ injuries
2011 Hackleburg–Phil Campbell tornado
This devastating, long-tracked and violent EF5 wedge tornado was the deadliest of the outbreak. It first touched down in Marion County, Alabama, about 5 mi km west-southwest of Hamilton around 3:00 p.m. CDT (21:00 UTC) on April 27, leaving massive damage along its track. The storm would eventually reach the Hackleburg area, completely leveling many homes and businesses, including a large Wrangler, Inc. factory. Most of the structures in downtown Hackleburg were badly damaged and Hackleburg High School was destroyed. Well-built homes were wiped cleanly from their foundations, extensive wind-rowing of debris occurred, trees were completely debarked, and cars were thrown hundreds of yards. According to the American Red Cross, 75 percent of the town was destroyed.https://www.npr.org/2011/05/03/135936478/in-small-towns-hit-by-twisters-you-feel-ignored In Small Towns Hit By Twisters, 'You Feel Ignored' National Public Radio Corporation for Public Broadcasting May 3, 2011 May 25, 2011 Tayna Ott June 5, 2011 https://web.archive.org/web/20110605110515/http://www.npr.org/2011/05/03/135936478/in-small-towns-hit-by-twisters-you-feel-ignored live While initially rated as an EF3, the rating was increased to EF5 after further analysis of the damage, making it the first F5/EF5 tornado in Alabama since the Birmingham tornado of April 8, 1998.http://mesonet.agron.iastate.edu/wx/afos/p.php?pil=PNSBMX&e=201104302306 Updated For Increase In Hackleburg Tornado Rating To EF-5 National Oceanic and Atmospheric Administration National Weather Service in Birmingham, Alabama April 30, 2011 May 5, 2011 March 18, 2014 https://web.archive.org/web/20140318220319/http://mesonet.agron.iastate.edu/wx/afos/p.php?pil=PNSBMX&e=201104302306 live
thumb|left|200px|Radar image of the tornado as it neared the town of Phil Campbell, Alabama, with a debris ball evident
Soon after crossing into Franklin County, the town of Phil Campbell experienced significant devastation of the same magnitude as Hackleburg. Numerous homes, some of which were well-constructed, were swept away as the tornado tore through town. At least three churches along the path sustained significant damage, with one church in the town being completely destroyed and having only the foundation slab remaining. Mobile homes throughout the path were completely destroyed, and their mangled frames were tossed at least 25 to 50 yd m. Cars were tossed and destroyed throughout the path of the tornado, with one car wrapped around a debarked tree. A 25 ft m on section of pavement was torn from a road in this area as well. The most intense damage along the path occurred northeast of Phil Campbell in the rural community of Oak Grove, where vehicles were carried long distances and mangled beyond recognition, large trees were completely debarked, and large brick homes with extensive anchoring were obliterated with the debris wind-rowed hundreds of yards away. The tornado continued into Lawrence County, impacting the Mount Hope community, where significant devastation was incurred to single-family homes and a restaurant. Nothing but the foundation and a pile of debris remained at the restaurant site, and a small portion of the restaurant's foundation slab buckled.http://www.srh.noaa.gov/hun/?n=franklin-al_lawrence_limestone_madison_franklin-tn_counties Franklin (AL) / Lawrence / Morgan / Limestone / Madison / Franklin (TN) EF-5 National Oceanic and Atmospheric Administration National Weather Service in Huntsville, Alabama May 1, 2011 May 5, 2011 December 29, 2013 https://web.archive.org/web/20131229072832/http://www.srh.noaa.gov/hun/?n=franklin-al_lawrence_limestone_madison_franklin-tn_counties live
The tornado moved northeast, producing EF3 damage in and around Langtown. The tornado re-intensified to EF4 strength as it passed near Moulton and Trinity, debarking trees, mangling, and leveling homes. It then continued through the northwest corner of Morgan County, crossed Wheeler Lake, and moved into Limestone County, coming within 2 mi km of Browns Ferry Nuclear Power Plant. The tornado caused power outages in the area, and the plant had to be shut down. The tornado continued towards the small community of Tanner.http://mesonet.agron.iastate.edu/wx/afos/p.php?pil=PNSHUN&e=201104290231 Preliminary Storm Survey Information From Limestone And Madison Counties National Oceanic and Atmospheric Administration National Weather Service in Huntsville, Alabama April 29, 2011 July 14, 2013 March 18, 2014 https://web.archive.org/web/20140318214328/http://mesonet.agron.iastate.edu/wx/afos/p.php?pil=PNSHUN&e=201104290231 livePam Sohn TVA loses all power transmission lines in Alabama and Mississippi, Browns Ferry Nuclear plant forced into emergency shutdow http://timesfreepress.com/news/2011/apr/28/tva-losses-all-power-transmission-lines-alabama-an/ April 28, 2011 Chattanooga Times Free Press April 28, 2011 https://web.archive.org/web/20110521065159/http://timesfreepress.com/news/2011/apr/28/tva-losses-all-power-transmission-lines-alabama-an/ May 21, 2011 http://mesonet.agron.iastate.edu/wx/afos/p.php?pil=PNSHUN&e=201105020259 Long Track EF-5 Tornado Confirmed Across The Tennessee Valley National Oceanic and Atmospheric Administration National Weather Service in Huntsville, Alabama May 2, 2011 July 14, 2013 March 18, 2014 https://web.archive.org/web/20140318220725/http://mesonet.agron.iastate.edu/wx/afos/p.php?pil=PNSHUN&e=201105020259 live Tanner experienced a large swath of EF4 damage and a narrow corridor of "high-end EF4 to near-EF5 damage". The storm "completely wiped clean" several well constructed homes with anchor bolting. As the storm crossed US 72 in eastern Limestone County, the tornado destroyed a Doppler radar operated by Huntsville NBC affiliate WAFF (channel 48) and continued into East Limestone, a heavily populated area of Limestone County where homes in subdivisions were damaged or destroyed at high-end EF3 strength.
thumb|right|A destroyed neighborhood in Toney, Alabama.
As the storm crossed into Madison County, it approached the densely populated suburban communities of Harvest and Toney, where it either damaged or destroyed hundreds of homes, especially in the Anderson Hills and Carter's Gin subdivisions. Many homes were reduced to rubble, and the damage in this area was rated mainly EF3 with a small pocket of EF4 damage in Harvest. The tornado completely destroyed a Piggly Wiggly grocery store in Harvest and severely damaged a convenience store and local bank, which was shut down for months following the event.http://blog.al.com/breaking/2011/04/at_least_7_dead_scores_injured.html Harvest & Toney, AL Destruction AL.com July 9, 2011 July 9, 2011 May 2, 2011 https://web.archive.org/web/20110502040334/http://blog.al.com/breaking/2011/04/at_least_7_dead_scores_injured.html live The storm progressed across Pulaski Pike in northwest Madison County, damaging many homes, and dissipated soon afterwards. In all, hundreds of homes received moderate to major damage along the path from Limestone to Madison County with many of these being total losses.
Initially, the tornado was thought to have continued into Tennessee. However, updates to the Damage Assessment Toolkit (DAT) and analysis by damage surveyors, including a 2022 re-analysis of the outbreak by the National Oceanic and Atmospheric Administration (NOAA) and National Severe Storms Laboratory (NSSL), determined that the Hackleburg tornado lifted after Madison County and assessed the portion in Tennessee to be a separate EF3 tornado.https://repository.library.noaa.gov/view/noaa/47474/noaa_47474_DS1.pdf Observed Characteristics of the Tornadic Supercells of 27–28 April 2011 in the Southeast United States Anthony W. Lyza Matthew D. Flournoy Erik N. Rasmussen University of Oklahoma, National Oceanic and Atmospheric Administration, National Severe Storms Laboratory May 16, 2022 April 12, 2025
In total, this tornado killed 71 people. This made it the deadliest single tornado ever to strike the state of Alabama as well as (at the time) the deadliest in the United States since the 1955 Udall, Kansas, tornado that killed 80 people.http://www.crh.noaa.gov/ict/udall/udall.php The Udall Kansas Tornado: May 25, 1955 National Oceanic and Atmospheric Administration National Weather Service in Huntsville, Alabama August 31, 2010 November 1, 2011 November 15, 2011 https://web.archive.org/web/20111115184654/http://www.crh.noaa.gov/ict/udall/udall.php livehttp://www.spc.noaa.gov/faq/tornado/killers.html The 25 Deadliest U.S. Tornadoes National Oceanic and Atmospheric Administration Storm Prediction Center July 14, 2013 May 15, 2011 https://web.archive.org/web/20110515204603/http://www.spc.noaa.gov/faq/tornado/killers.html live In addition to being the deadliest, this tornado also had one of the longest tracks of any tornado in the outbreak, with its path extending 102 mi km across Northern Alabama.
In response to the damage in Phil Campbell, one of the hardest hit communities, writer Phil Campbell organized a fundraising and relief effort composed of 20 people with the name Phil Campbell or variations thereof. They traveled to the community from places as far away as Australia to aid in the cleanup effort. Many of these people had planned to attend a convention in June 2011 to commemorate the 100th anniversary of the city's incorporation.30 Phil Campbells clean up tornado-ravaged town called Phil Campbell http://www.people.co.uk/news/uk-world-news/2011/06/19/30-phil-campbells-clean-up-tornado-ravaged-town-called-phil-campbell-102039-23210408/ The People August 28, 2012 June 19, 2011Phil Campbells helping tornado-hit Alabama town of Phil Campbell https://www.courierpress.com/news/2011/jun/17/phil-campbells-helping-tornado-hit-alabama-town-ph/?partner=RSS The Henderson Gleaner August 28, 2012 June 17, 2011
Reform–Oakman–Cordova–Blountsville, Alabama
Reform–Oakman–Cordova–Blountsville, Alabama April 27, 2011, 3:40 p.m. CDT (UTC−05:00) 2 hours, 16 minutes April 27, 2011, 5:56 p.m. CDT (UTC−05:00) 2011 Cordova tornado near Sipsey.jpg 300 The tornado at EF4 intensity near Sipsey, Alabama. 170 mph km/h on EF4 13 fatalities, 54+ injuries
2011 Cordova–Blountsville tornado
This violent and extremely long-tracked EF4 tornado touched down at 3:40 p.m. CDT (20:40 UTC) in northeastern Pickens County, Alabama, where it strengthened while impacting structures at EF0 and EF1 intensity, moving past several smaller towns.Cordova (Pickens, Tuscaloosa, Fayette, Walker and Blount Counties) EF-4 Tornado April 27, 2011 http://www.srh.noaa.gov/bmx/?n=event_04272011cordova National Oceanic and Atmospheric Administration National Weather Service in Birmingham, Alabama August 23, 2011 July 15, 2013 December 29, 2013 https://web.archive.org/web/20131229065515/http://www.srh.noaa.gov/bmx/?n=event_04272011cordova live As the tornado moved into Cordova it reached EF3 intensity and heavily damaged the town. The tornado continued to strengthen as it moved across Alabama, reaching EF4 intensity as it passed northwest of Sumiton. The tornado retained this intensity as it caused sporadic damage across rural Alabama, destroying numerous homes and debarking trees. It dissipated south of Red Hill, lifted south-southwest of Guntersville at 5:56 p.m. CDT (22:56 UTC). Thousands of trees were downed along the tornado's path.Marshall County (The End of the Long Track Tornado – Ending East of Hwy 79 and South of Hwy 431) EF-2 http://www.srh.noaa.gov/hun/?n=4272011_marshall_longtrackend National Oceanic and Atmospheric Administration National Weather Service in Huntsville, Alabama October 2, 2011 July 15, 2013 December 29, 2013 https://web.archive.org/web/20131229072632/http://www.srh.noaa.gov/hun/?n=4272011_marshall_longtrackend live This tornado was on the ground for two hours and sixteen minutes, tracking for 127.8 mi km across seven counties making it the longest track tornado of the outbreak. It was rated as a low-end EF4 with winds of 170 mph km/h on. In total, 13 people were killed and 54 others were injured.
Cordova was devastated by the tornado, which was the second major tornado to hit the community on April 27.The April 2011 Tornado Super Outbreak: 16 Things We'll Never Forget Weather.com https://weather.com/storms/tornado/news/2021-04-22-april-2011-tornado-super-outbreak-recap November 11, 2024 The Weather Channel en-USJuly 16, 2011 About 200 residents turn out for long-range tornado recovery meeting in Cordova (slideshow) https://www.al.com/spotnews/2011/07/about_100_residents_turn_out_f.html November 11, 2024 AL en Several businesses and other buildings were destroyed or heavily damaged in and outside of the town, and four were killed in the downtown area.December 2025 The city of Cordova was awarded $5,098,515 (US 5098515 2011 -3 eq) to aid with recovery efforts after the tornado; Blount County was awarded $758,572 (US 758572 2011 -3 eq). Recovery efforts continued for months after the tornadoes.Laing Carly April 27, 2022 'There was just no safe place that day': The city of Cordova reflects on April 27 tornadoes https://www.cbs42.com/news/there-was-just-no-safe-place-that-day-the-city-of-cordova-reflects-on-april-27-tornadoes/ November 11, 2024 CBS 42 In the weeks and months after the tornado, numerous fires started in downtown Cordova within the rubble, which further damaged structures and temporarily stunted recovery efforts.Reeves Jay April 26, 2021 Pain, loss linger a decade after tornadoes hammer 6 states https://apnews.com/article/environment-and-nature-tornadoes-science-a2a06fb3773de5d24aded447a4ab7aed November 11, 2024 Associated PressOctober 28, 2011 Firefighters return to downtown Cordova after fires re-flare in several buildings https://www.al.com/spotnews/2011/10/firefighters_return_to_downtow.html November 11, 2024 AL enHardison Jonathan September 18, 2012 Storm-damaged Cordova hit by third fire in 17 months https://www.wbrc.com/story/19568132/storm-damaged-cordova-hit-by-third-fire-in-17-months/ November 11, 2024 WBRC en
Smithville, Mississippi/Hodges, Alabama
Smithville, Mississippi/Hodges, Alabama April 27, 2011, 3:42 p.m. CDT (UTC−05:00) 41 minutes April 27, 2011, 4:23 p.m. CDT (UTC−05:00) 2011 Smithville, Mississippi EF5 tornado at peak intensity.jpg 300 The tornado at peak intensity in northern Smithville. 205 mph km/h on EF5 23 fatalities, 137 injuries
2011 Smithville tornado
This extremely violent and fast moving EF5 wedge tornado, with estimated winds of up to 205 mph km/h on, struck the town of Smithville, Mississippi, at 3:47 p.m. CDT (20:47 UTC) on April 27, resulting in catastrophic damage and numerous fatalities.http://www.srh.noaa.gov/meg/?n=apr2011toroutbreaksmithville Smithville, MS EF-5 Tornado National Oceanic and Atmospheric Administration National Weather Service in Memphis, Tennessee May 30, 2011 July 15, 2013 March 4, 2016 https://web.archive.org/web/20160304001317/http://www.srh.noaa.gov/meg/?n=apr2011toroutbreaksmithville live The tornado began 3 mi km west-southwest of Smithville along the Tennessee–Tombigbee Waterway near the Glover Wilkins Lock at 3:42 p.m. CDT (20:42 UTC), snapping numerous trees near the Smithville Recreation Area. The tornado then rapidly intensified as it approached town, reaching EF5 intensity. As the storm crossed Davis Road South, the ground was deeply scoured in a nearby field.http://ngs.woc.noaa.gov/storms/apr11_tornado/ April 2011 Tornado Response Imagery National Oceanic and Atmospheric Administration National Geodetic Survey 2011 June 20, 2014 https://web.archive.org/web/20131229064349/http://ngs.woc.noaa.gov/storms/apr11_tornado/ December 29, 2013 dead The tornado swept away numerous homes and structures as it moved northeast, following MS 25. A semi-truck was thrown a considerable distance and destroyed in this area, and at one residence that was swept away, part of the concrete foundation slab was pulled up and dislodged slightly. Multiple well-anchored brick homes were completely swept away, and a large brick funeral home was reduced to a bare slab as the tornado exited at the northeast side of town, with the debris scattered and wind-rowed into an adjacent wooded area. Nearby granite tombstones were blown over in the opposite direction of the tornado's passage. Overall, the tornado destroyed 117 structures in Smithville and damaged 50 others, killing 16 people.http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=303562 NCDC Storm Events Database National Climatic Data Center National Oceanic and Atmospheric Administration 2011 June 13, 2014 January 2, 2014 https://web.archive.org/web/20140102225728/http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=303562 live The tornado weakened as it continued through rural areas northeast of town and moved into Itawamba County, where it downed numerous trees and power lines and caused roof damage to a house before exiting the county.http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=303563 NCDC Storm Events Database National Climatic Data Center National Oceanic and Atmospheric Administration 2011 June 20, 2014 January 2, 2014 https://web.archive.org/web/20140102220433/http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=303563 live
thumb|left|Radar image showing the supercell and hook echo of the storm that produced the Smithville tornado.
The tornado continued across the Alabama state line into Marion County, where it caused EF1-strength damage near Bexar. Continuing northeast, the tornado re-intensified as it struck the rural community of Shottsville at high-end EF3 intensity, where homes and mobile homes were destroyed and seven people were killed, and it produced additional high-end EF3 damage as it continued north of Hamilton.http://www.srh.noaa.gov/hun/?n=4272011_franklin_county_hodges Franklin County Alabama (Hodges Area) EF-2 National Oceanic and Atmospheric Administration National Weather Service in Huntsville, Alabama June 5, 2012 July 20, 2014 December 19, 2014 https://web.archive.org/web/20141219030418/http://www.srh.noaa.gov/hun/?n=4272011_franklin_county_hodges live More structures were impacted as the tornado approached and crossed into Franklin County. The tornado then dissipated near the town of Hodges at 4:23 p.m. CDT (21:23 UTC). The damage path was 37.3 mi km long and 3/4 mi km wide at its widest point, and it killed a total of 23 people along its path. 137 other people were injured.http://www.srh.noaa.gov/bmx/?n=event_04272011shotsville Shottsville (Marion County) EF-3 Tornado April 27, 2011 National Oceanic and Atmospheric Administration National Weather Service in Birmingham, Alabama August 23, 2011 July 15, 2013 December 29, 2013 https://web.archive.org/web/20131229072837/http://www.srh.noaa.gov/bmx/?n=event_04272011shotsville live
Pisgah–Flat Rock–Higdon, Alabama/Trenton, Georgia
Pisgah–Flat Rock–Higdon, Alabama/Trenton, Georgia 2011 Pisgah, Alabama tornado seen from Mentone.png A photo of the tornado as it was on a hill; the tornado itself and the cloud above is visible. The photo is taken from a distance. The tornado at EF4 intensity north of Pisgah, Alabama, seen from Mentone, Alabama April 27, 2011, 4:01 p.m. CDT (UTC−05:00) 56 minutes April 27, 2011, 5:57 p.m. EDT (UTC−04:00) 300 190 mph km/h on EF4 14 fatalities, 50+ injuries
2011 Flat Rock–Trenton tornado
left|thumb|An aerial view of the damage in Trenton, Georgia by the tornado.
This multiple-vortex EF4 tornado that originated from the Cullman supercell, with maximum sustained winds of up to 190 mph km/h on, devastated portions of Jackson and DeKalb counties in Alabama, as well as Dade and Walker counties in Georgia along a 47 mi km mid -long path at times up to 1260 yd m wide, killing 14 people and injuring at least 50 others.http://www.srh.noaa.gov/hun/?n=04272011_jackson_northern-dekalb Eastern Jackson (AL) / Northern De kalb (AL) - EF-4 (Section to Flat Rock to GA) February 15, 2012 NWS Huntsville, AL NOAA June 15, 2014 December 29, 2013 https://web.archive.org/web/20131229063904/http://www.srh.noaa.gov/hun/?n=04272011_jackson_northern-dekalb live http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=304631 Storm Events Database NCDC June 15, 2014 July 14, 2014 https://web.archive.org/web/20140714204452/http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=304631 live http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=304667 Storm Events Database NCDC June 15, 2014 July 14, 2014 https://web.archive.org/web/20140714201631/http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=304667 live
The tornado touched down north of Section, initially producing EF0 to EF1 tree damage. The tornado rapidly intensified to low-end EF4 strength as it passed northwest of Pisgah and Rosalie, destroying numerous mobile homes and block foundation homes, scattering the debris hundreds of yards and killing three people. Thousands of trees were snapped and debarked, vehicles were thrown up to 50 yd m in different directions, and barns and chicken houses were heavily damaged, along with the roof of a church. As it passed near Flat Rock and Higdon, the tornado reached high-end EF4 strength, mowing down thousands of trees in this rural area. The tornado later crossed into Georgia and crossed I-59 as it struck Trenton at EF3 intensity, killing two people. Dozens of homes in Trenton were either completely destroyed or sustained major damage, and tens of thousands of trees were downed in the area. A grocery store, two apartment complexes, and a funeral home were destroyed as well.
The tornado weakened to EF2 strength as it struck Flintstone further to the northeast, but still resulted in major damage. Numerous trees and power lines were downed, 7 homes were destroyed, 26 sustained major damage, and 35 sustained minor damage in the Flintstone area. The tornado continued northeast, weakening to EF0 strength before finally dissipating near Fort Oglethorpe.
Tuscaloosa–Birmingham, Alabama
Tuscaloosa–Birmingham, Alabama Tuscaloosa tornado CCTV.jpg A CCTV still of the tornado in downtown Tuscaloosa. April 27, 2011, 4:43 p.m. CDT (UTC−05:00) 1 hour, 31 minutes April 27, 2011, 6:14 p.m. CDT (UTC−05:00) 300 190 mph km/h on EF4 64 fatalities, ~1,500 injuries
2011 Tuscaloosa–Birmingham tornado
This large and catastrophic multiple-vortex wedge tornado touched down in rural Greene County, Alabama, and tracked across neighboring Tuscaloosa County, including the southern and eastern portions of Tuscaloosa at around 5:10 p.m. CDT (22:10 UTC) on April 27.Enjoli Francis Jeremy Hubbard Leezel Tanglao ABC News https://abcnews.go.com/US/massive-tornado-hits-alabama-storms-leave-16-dead/story?id=13465028 Storms, Tornadoes Leave Dozens Dead in Alabama, Mississippi, Georgia and Tennessee April 27, 2011 April 28, 2011 https://web.archive.org/web/20110428040702/https://abcnews.go.com/US/massive-tornado-hits-alabama-storms-leave-16-dead/story?id=13465028 April 28, 2011 National Oceanic and Atmospheric Administration National Weather Service in Birmingham, Alabama http://www.srh.noaa.gov/bmx/?n=event_04272011tuscbirm Tuscaloosa-Birmingham EF-4 Tornado April 27, 2011 2011 July 15, 2013 December 26, 2013 https://web.archive.org/web/20131226104502/http://www.srh.noaa.gov/bmx/?n=event_04272011tuscbirm live Debris from the tornado was reported to be falling from the sky across Birmingham over 20 mi km away in Jefferson County. Skycams operated by Tuscaloosa television station WVUA-CA (channel 7) as well as Birmingham Fox affiliate WBRC (channel 6), ABC affiliate WBMA-LD/WCFT-TV/WJSU-TV (channels 58, 33, and 40), and CBS affiliate WIAT (channel 42) captured live footage of the tornado as it struck Tuscaloosa; WIAT received awards, including a regional Edward R. Murrow Award for "Outstanding Live Coverage" of the event.WOFL http://www.myfoxorlando.com/video?clipId=7236537&autostart=true VIDEO: Alabama tornado April 28, 2011 July 15, 2013 dead https://web.archive.org/web/20131225183242/http://www.myfoxorlando.com/video?clipId=7236537&autostart=true December 25, 2013 As the tornado traveled east to 35th Street and Kauloosa Avenue, the Tuscaloosa Environmental Services and Cintas facilities suffered severe damage. Numerous homes and apartment buildings in the Rosedale and Forest Lake neighborhoods, as well as a P&P Grocery store in Rosedale, were devastated. Several stores and restaurants in a business district at the intersection of McFarland Boulevard and 15th Street, near the DCH Regional Medical Center, were reduced to rubble. Buildings on 35th Street, between I-359/US 11/SR 69 and Martin Luther King Jr. Boulevard, were also completely destroyed. The Alberta City neighborhood in eastern Tuscaloosa sustained catastrophic damage as numerous homes, apartment buildings, and a shopping center were completely leveled. Additional low-end EF4 damage occurred in the Tuscaloosa suburb of Holt further to the northeast, as several homes were leveled or swept away in that area. The tornado then exited the Tuscaloosa area and moved through dense forest towards Birmingham, downing and debarking thousands of trees at low-end EF3 intensity.Tuscaloosa News http://www.tuscaloosanews.com/article/20110427/NEWS/110429711?Title=AFTERMATH--Accounts-of-the-Tuscaloosa-tornado THE AFTERMATH: Staff accounts of the tornado April 27, 2011 July 15, 2013 November 22, 2013 https://web.archive.org/web/20131122212726/http://www.tuscaloosanews.com/article/20110427/NEWS/110429711?Title=AFTERMATH--Accounts-of-the-Tuscaloosa-tornado live
The University of Alabama shut down its campus briefly during the course of the storm itself, resuming regular activities within minutes. Upon realizing the extent of the storm damage immediately off-campus, including areas of off-campus student housing, the university shut down all academic and extracurricular activities for the remainder of the day, and then, still later, for the remaining ten days of the academic semester. All final exams were cancelled, with all registered students receiving a final grade based on their grade as of the day of the storm. Spring commencement ceremonies were postponed until August 6.April 28, 2011 Closings http://www.tuscaloosanews.com/article/20110428/NEWS/110429643 https://web.archive.org/web/20111202151211/http://www.tuscaloosanews.com/article/20110428/NEWS/110429643 December 2, 2011 July 15, 2013 Tuscaloosa News The university itself was undamaged by the storm, though six students enrolled at the university were later discovered to have perished.Grayson Wayne May 3, 2011 Six UA students included in list of tornado deaths https://www.tuscaloosanews.com/story/news/2011/05/04/six-ua-students-included-in-list-of-tornado-deaths/28377121007/ May 3, 2024 The Tuscaloosa News en-US May 3, 2024 https://web.archive.org/web/20240503040542/https://www.tuscaloosanews.com/story/news/2011/05/04/six-ua-students-included-in-list-of-tornado-deaths/28377121007/ live
Many stations, including WIAT, WBMA/WCFT/WJSU, WTVY (channel 4) in Dothan and WSFA (channel 12) in Montgomery, showed television cameras capturing the event as the tornado moved east-northeast across the western and northern suburbs of Birmingham around 6:00 p.m. CDT (23:00 UTC). It rapidly intensified to its maximum intensity and grew to its maximum width as it approached the area. Several suburbs in the area were severely damaged by the massive tornado as it tore through the west side of Birmingham, resulting in fatalities. The suburbs of Concord and Pleasant Grove were devastated by the high-end EF4 tornado as it moved northeast, flattening entire neighborhoods. The tornado then weakened, but still caused heavy EF2 damage to the community of McDonald Chapel. As the tornado entered the Birmingham city limits, it impacted the Pratt City neighborhood while still at EF2 strength, damaging numerous homes and apartment buildings. The tornado then struck the suburb of Fultondale, causing additional EF2 damage to homes and businesses before rapidly weakening and dissipating north of Tarrant.Tim Ballisty Chris Dolce Jonathan Erdman Weather.com http://www.weather.com/outlook/weather-news/news/articles/severe-weather-tracker-april22-26_2011-04-22 Severe Weather: Track the Storms April 27, 2011 April 27, 2011 https://web.archive.org/web/20110510131036/http://www.weather.com/outlook/weather-news/news/articles/severe-weather-tracker-april22-26_2011-04-22 May 10, 2011
The National Weather Service determined the path length of this violent tornado to be 80.7 mi km with a maximum damage path width of 1.5 mi km. The tornado's most intense damage indicated peak winds of around 190 mph km/h on; therefore, it was given a final rating of EF4. Reports from Tuscaloosa indicated 44 people were killed, with an additional 20 deaths in Birmingham.City says 44 deaths attributed to tornado http://www.tuscaloosanews.com/article/20110708/NEWS/110709754 Tuscaloosa News June 8, 2011 July 15, 2013 December 22, 2013 https://web.archive.org/web/20131222050714/http://www.tuscaloosanews.com/article/20110708/NEWS/110709754 live Overall this tornado killed 64 people and injured more than 1,500. President Barack Obama and First Lady Michelle Obama visited Tuscaloosa on April 29, taking a ground tour of some of the affected areas. Obama was quoted as saying that he had "never seen devastation like this". He stated further that he had already declared a federal state of emergency in Alabama.https://www.npr.org/blogs/thetwo-way/2011/04/29/135842102/obama-in-tuscaloosa-ive-never-seen-devastation-like-this Obama In Tuscaloosa: 'I've Never Seen Devastation Like This' Eyder Peralta April 29, 2011 National Public Radio Corporation for Public Broadcasting April 29, 2011 https://web.archive.org/web/20110502172806/http://www.npr.org/blogs/thetwo-way/2011/04/29/135842102/obama-in-tuscaloosa-ive-never-seen-devastation-like-this May 2, 2011
Fackler–Stevenson–Bridgeport, Alabama/Haletown, Tennessee
Fackler–Stevenson–Bridgeport, Alabama/Haletown, Tennessee April 27, 2011, 5:05 p.m. CDT (UTC−05:00) 26 minutes April 27, 2011, 5:31 p.m. CDT (UTC−05:00) 2011 Bridgeport EF4 tornado.jpg 300 The tornado as it moved through Bridgeport. 180 mph km/h on EF4 1 fatality
This EF4 tornado, with winds of up to 180 mph km/h on, touched down in the community of Fackler at 5:05 p.m. CDT (22:05 UTC) on April 27, initially causing minor damage to mobile homes and downing trees. The tornado then moved northeast toward Stevenson, where large trees were downed, several roofs were damaged, a trailer was tipped over, and a shed was partially destroyed. It then reached EF3 intensity, and 24 metal high-tension truss towers were twisted and flattened northeast of Stevenson Airport. In this area, a mobile home was obliterated, and a site-built house collapsed. Two other homes sustained structural damage, two mobile homes were rolled on their side, and a metal barn was destroyed as well. The tornado then continued to the northeast and reached EF4 strength, with the most significant damage being located near the intersection of County Roads 255 and 256. Here, a home was reduced to its foundation, a concrete slab at the front of the home was pulled up, and a set of concrete stairs was ripped from the foundation. A compact car was thrown about 50 yd m as well.Jackson County (Bridgeport Area) EF-4 http://www.srh.noaa.gov/hun/?n=04272011_jackson National Oceanic and Atmospheric Administration National Weather Service in Huntsville, Alabama June 26, 2012 July 14, 2014 December 6, 2014 https://web.archive.org/web/20141206131806/http://www.srh.noaa.gov/hun/?n=04272011_jackson livehttp://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=301882 NCDC Storm Events Database National Oceanic and Atmospheric Administration National Climatic Data Center 2011 July 14, 2014 July 14, 2014 https://web.archive.org/web/20140714185733/http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=301882 live
left|thumb|Low-end EF4 damage to a home near Stevenson.
Continuing, the tornado reduced two more well-built and well-anchored homes to their block foundations and threw another car approximately 50 yd m. Several large trees were snapped off just above the ground, a third home was left with no walls standing, and a mobile home was completely demolished and strewn along County Road 256 as well. The tornado continued northeastward, destroying a cinder block garage and damaging a mobile home along 6th Street, just southeast of the city of Bridgeport. It then crossed the Tennessee River, producing significant tree damage as it passed a couple miles to the northwest of Bryant before moving into Marion County, Tennessee. The tornado entered Tennessee along Lakeview Drive near Moore Crossing and Nickajack Dam. It crossed SR 156 near the dam and proceeded to cross Nickajack Lake three times near I-24 at EF2 strength, downing numerous trees before dissipating in a bend of the Tennessee River northeast of Haletown at 5:31 p.m. CDT (22:31 UTC).
The tornado travelled 30.24 mi km through Jackson and Marion Counties and had a peak width of 1320 yd m. One person was killed by the tornado in Jackson County, a teenager near Bridgeport.http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=343727 NCDC Storm Events Database National Oceanic and Atmospheric Administration National Climatic Data Center 2011 July 14, 2014 December 19, 2014 https://web.archive.org/web/20141219024041/http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=343727 live
Pikeville–Haleyville, Alabama
Pikeville–Haleyville, Alabama April 27, 2011, 5:10 p.m. CDT (UTC−05:00) 37 minutes April 27, 2011, 5:47 p.m. CDT (UTC−05:00) 2011 Haleyville tornado.jpg 300 The rain-wrapped tornado seen behind a line of trees. 150 mph km/h on EF3 25 injuries
This large, long-tracked intense tornado first touched down along US 43 just southeast of Pikeville in Marion County at 5:10 p.m. CDT. Moving northeastward, the tornado snapped and downed hundreds of trees as it moved through forested areas and crossed CR 37. The tornado then crossed Corridor X/US 78/SR 4, continuing to snap and down trees as it crossed CR 74 and CR 42. As the tornado neared CR 45, it quickly intensified to its peak intensity of mid-range EF3 as it moved along the roadway, impacting six well-built brick homes. Three were left with only interior walls, another lost its second story, roughly half of another home was destroyed, and the last one was unroofed. One mobile home was blown away and never found, another one was rolled and destroyed, and many trees were downed. After crossing SR 253, the tornado continued to cause EF2 tree damage as it moved northeastward before reaching its peak intensity of mid-range EF3 a second time just south of US 278/SR 74. Several outbuildings, including two barns, along with a well-built home on a cinderblock foundation, were obliterated and swept away, with nearby trees snapped and debarked. Several injuries occurred in this area. The tornado then weakened back to EF1 intensity as it crossed US 278/SR 74, mainly snapping and downing trees as it crossed SR 241 and SR 129.
thumb|left|Extensive damage to a home and trees on the south side of Haleyville.
As it approached the Winston County line, the tornado began to intensify again and reached EF3 intensity again as it crossed the county line and struck the south side of South Haleyville. Near the intersection of CR 75 and Dolphin Rd, the tornado destroyed Winston Furniture Company, the Fontaine Trailer Company, and other businesses. The tornado then reached its peak intensity of mid-range EF3 for the final time as it crossed SR 5 and struck a residential neighborhood on the south side of Haleyville. Many homes were extensively damaged or destroyed, with roofs removed and exterior walls knocked down; several homes were deemed to be uninhabitable after the tornado. Large trees were snapped in this area as well. Northeast of there, a home was shifted 10 ft m off its foundation, and a concrete pole was snapped. The tornado then steadily weakened as it continued northeastward, damaging more trees as it moved into William B. Bankhead National Forest and crossed SR 195 and SR 243 before dissipating just before reaching the Lawrence County line.
The tornado was on the ground for 37 minutes, tracked 31.84 mi km on, and had a maximum width of 1320 yd m on. It caused $17 million (2011 USD) in damage and injured 25 people.
Sawyerville–Eoline, Alabama
Sawyerville–Eoline, Alabama April 27, 2011, 5:30 p.m. CDT (UTC−05:00) 1 hour, 25 minutes April 27, 2011, 6:55 p.m. CDT (UTC−05:00) 2011 Sawyerville tornado at EF3 intensity near Forkland, Alabama.png 300 The tornado, seen near Forkland at EF2 or EF3 intensity. 145 mph km/h on EF3 7 fatalities, 52+ injuries
2011 Sawyerville–Eoline tornado
This strong and long-tracked EF3 wedge tornado touched down in extreme southwest Greene County to the west-southwest of Tishabee, near the Sumter County border, at 5:30 p.m. CDT (22:30 UTC) and moved northeast. After having touched down in a rural area on the east side of the Tombigbee River, the tornado quickly intensified to high-end EF2 strength along County Road 69. Moving northeast, the tornado damaged a barn and destroyed two small churches and at least four mobile homes. Two people sustained minor injuries in Greene County as the tornado continued along a primarily rural path northeast, moving across the Black Warrior River and into Hale County.Sawyerville-Eoline (Greene, Hale and Bibb Counties) EF-3 Tornado April 27, 2011 http://www.srh.noaa.gov/bmx/?n=event_04272011sawyerville National Oceanic and Atmospheric Administration National Weather Service in Birmingham, Alabama August 23, 2011 April 4, 2015 December 29, 2013 https://web.archive.org/web/20131229063921/http://www.srh.noaa.gov/bmx/?n=event_04272011sawyerville livehttp://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=314725 NCDC Storm Events Database National Climatic Data Center National Oceanic and Atmospheric Administration 2011 April 4, 2015 December 21, 2014 https://web.archive.org/web/20141221171404/http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=314725 live
Leaving behind six fatalities and forty more injuries, the tornado maintained its intensity as it moved into the Talladega National Forest. It downed a significant number of trees before moving into Bibb County north of SR 25.National Climatic Data Center 2011 NCDC Storm Events Database http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=314742 live https://web.archive.org/web/20141221184701/http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=314742 December 21, 2014 April 4, 2015 National Oceanic and Atmospheric Administration In Bibb County, the tornado continued moving northeastward through the Talladega National Forest at EF3 intensity, with thousands more trees being knocked down and partially debarked. Almost immediately after exiting the national forest, the tornado directly impacted the small community of Eoline along US 82, northwest of Brent and Centerville. Around one dozen mobile homes and single-family site-built homes were destroyed.http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=314799 NCDC Storm Events Database National Climatic Data Center National Oceanic and Atmospheric Administration 2011 April 4, 2015 December 21, 2014 https://web.archive.org/web/20141221184607/http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=314799 live
Northeast of Eoline, the tornado weakened to EF2 intensity, continuing to cause significant damage as it crossed County Road 9, SR 5, and County Road 26, south of West Blocton. Several mobile homes and site-built homes were either destroyed or sustained major damage. Along the path, thousands of trees were downed. The tornado continued to weaken as it moved to the east of West Blocton, continuing to knock down trees. More trees were downed as the tornado crossed the Cahaba River and lifted just northeast of Marvel at 6:55 p.m. CDT (23:55 UTC), not far from the Shelby County border.
The tornado was rated as an EF3, with maximum sustained winds of 145 mph km/h on. It remained on the ground for almost an hour and a half, traversing 72.13 mi km, being, at times, about 1 mi km in wide. In total, seven people were killed and at least 52 others were injured.
Raleigh–Rose Hill–Enterprise, Mississippi/Yantley–Uniontown, Alabama
Raleigh–Rose Hill–Enterprise, Mississippi/Yantley–Uniontown, Alabama April 27, 2011, 5:42 p.m. CDT (UTC−05:00) 2 hours, 53 minutes April 27, 2011, 8:35 p.m. CDT (UTC−05:00) Smith Jasper Clarke Counties tornado 2011-04-27.jpg 300 The EF4 Enterprise tornado, as it was in southeast Mississippi.http://www.srh.noaa.gov/jan/?n=2011_04_25_27_svr_smith_jasper_clarke Smith/Jasper/Clarke CountiesTornado National Oceanic and Atmospheric Administration National Weather Service in Jackson, Mississippi September 14, 2011 November 1, 2011 December 12, 2011 https://web.archive.org/web/20111212135650/http://www.srh.noaa.gov/jan/?n=2011_04_25_27_svr_smith_jasper_clarke live 175 mph km/h on EF4 7 fatalities, 17 injuries
2011 Enterprise tornado
This extremely long-tracked and violent EF4 tornado touched down near Raleigh, Mississippi, in Smith County at 5:42 p.m. CDT (22:42 UTC), and continued into the Uniontown, Alabama, area before dissipating. The tornado initially downed trees, blew skirting from mobile homes, and tore shingles from roofs. The tornado intensified as it moved northeast across Smith County and produced up to EF2 and EF3 damage. One mobile home was picked up, bounced a couple times, and thrown into a tree line, where it was torn apart and debris was scattered up to a mile away, including the frame. The tornado mowed down a stand of pine trees and destroyed two frame houses, with major damage to the interior walls, and the exterior walls completely destroyed. Many power poles were snapped, a mobile home was annihilated, and a large shop building was completely destroyed as well. It then moved into Jasper County and snapped and debarked many pine trees. The first area of EF4 damage was observed near Louin as a frame home and several mobile homes were completely destroyed, with parts of the mobile homes being thrown long distances, and some of the frame home foundation being swept clean. The tornado caused significant damage to a poultry farm and cattle ranch before it weakened briefly. It then destroyed two mobile homes and caused extensive tree and power line damage. The tornado then produced a relatively narrow path of EF1-strength tree and power line damage for several miles, until re-intensifying near to EF3 strength near Rose Hill.
Southeast of Rose Hill, the tornado removed most of the roof of a frame home and caused heavy damage to the exterior walls, took a large section of roof off another frame home, completely destroyed a large mobile home, and caused extensive tree damage. The tornado then weakened again and entered Clarke County as an EF0 while only downing a few trees. The tornado strengthened again and downed trees and power lines as it crossed I-59. Several other homes and mobile homes were destroyed as the tornado moved along the south side of Enterprise. At the same time, Sean Casey of Team TIV shot the tornado with his new 3D camera as it was crossing I-59, making this the first tornado ever shot in 3D. Another area of EF4 damage was observed east of Enterprise as a new home undergoing completion was leveled, with the debris swept off the foundation. Many more frame homes were heavily damaged nearby. Many mobile homes were destroyed and trees were downed in this area as well. It then weakened slightly to EF3 strength and produced heavy damage to more houses and mobile homes near Snell and Energy. It also downed many more trees and power lines before moving into Choctaw County, Alabama, southwest of Yantley. The tornado killed seven people and injured fourteen others on its 65 mi km on portion of the path that was in Mississippi.
thumb|left|Low-end EF4 damage to a home near Enterprise, Mississippi.
In Choctaw County, the tornado traveled 27.5 mi km as it caused extensive damage to homes (one of which was destroyed at EF3 strength), and numerous other structures. Several mobile homes were destroyed and many trees were either snapped or completely uprooted. The tornado then moved into Sumter County.April 25–28, 2011 Tornado Outbreak Information http://www.srh.noaa.gov/mob/?n=20110427_tor National Oceanic and Atmospheric Administration National Weather Service in Mobile, Alabama January 17, 2013 July 15, 2013 December 29, 2013 https://web.archive.org/web/20131229062552/http://www.srh.noaa.gov/mob/?n=20110427_tor live In Sumter County, the tornado caused significant damage to homes and mobile homes before it crossed the Tombigbee River and moved into Marengo County. It continued causing significant tree damage as well as destroying several homes and outbuildings along a 26.7 mi km on path in this county. The tornado then entered Perry County, the final portion of the path, where it damaged two outbuildings and a grain silo as well as causing significant tree damage before lifting just north of Uniontown at 8:35 p.m. CDT (01:35 UTC). The damage in Sumter, Marengo, and Perry Counties was rated EF2.Pin Hook-Faunsdale (Sumter, Marengo and Perry Counties) EF-2 Tornado April 27, 2011 http://www.srh.noaa.gov/bmx/?n=event_04272011pinhook National Oceanic and Atmospheric Administration National Weather Service in Birmingham, Alabama August 23, 2011 July 15, 2013 December 29, 2013 https://web.archive.org/web/20131229072628/http://www.srh.noaa.gov/bmx/?n=event_04272011pinhook live
This tornado was on the ground for nearly three hours, having traveled 122.04 mi km across seven counties in two states. Seven people were killed and another 17 were injured.
Fyffe–Rainsville–Sylvania, Alabama/Rising Fawn, Georgia
Fyffe–Rainsville–Sylvania, Alabama/Rising Fawn, Georgia April 27, 2011, 6:19 p.m. CDT (UTC−05:00) 36 minutes April 27, 2011, 7:55 p.m. EDT (UTC−04:00) Rainsville Tornado Dana Dobbins.png 300 The Rainsville tornado exiting town at EF5 strength. >200 mph km/h on EF5 25 fatalities, unknown injuries
2011 Rainsville tornado
This violent and devastating multiple-vortex tornado that originated from the Cordova supercell was rated EF5, making it so far the most recent tornado to be rated at that intensity in Alabama. It began in the Lakeview community northeast of Geraldine, Alabama, at 6:19 p.m. CDT (23:19 UTC), during the late afternoon of April 27. The tornado tracked northeastward for 36.63 mi km generally parallel to and just east of SR 75 through Fyffe, Rainsville, and Sylvania and into Georgia, killing 25 people.http://www.srh.noaa.gov/hun/?n=4272011_dekalb_county Dekalb (AL) – Lakeview to Rainsville to Cartersville National Oceanic and Atmospheric Administration National Weather Service in Huntsville, Alabama February 15, 2012 July 15, 2013 October 22, 2013 https://web.archive.org/web/20131022152325/http://www.srh.noaa.gov/hun/?n=4272011_dekalb_county live
Initial damage in Lakeview consisted of structural damage to small buildings and snapped trees. The tornado grew in intensity as it struck Fyffe, where more significant damage occurred. Past Fyffe, the tornado became violent, and its width increased from around 50 yd m to 0.5 mi m as it entered eastern Rainsville, reaching EF5 intensity as it destroyed numerous homes and businesses. A Huddle House restaurant, the Rainsville Civic Center, and a credit union were destroyed. Vehicles were also thrown, including a school bus that was completely stripped down to its chassis.https://www.latimes.com/world/la-xpm-2011-apr-29-la-na-rainsville-alabama-tornadoes-20110430-story.html In Rainsville, tragedy and amazing tales of survival Bermudez Esmeralda April 29, 2011 Los Angeles Times June 14, 2014 November 12, 2014 https://web.archive.org/web/20141112132626/http://articles.latimes.com/2011/apr/29/nation/la-na-rainsville-alabama-tornadoes-20110430 live Numerous homes in the Rainsville area were swept completely away, with debris strewn up to a mile from the foundations. Some of these homes were connected to their foundations with anchor bolts and foundation straps. Trees were debarked and mobile homes were completely destroyed as well. Damage was particularly intense just northeast of Rainsville, and one well-built stone house in this area was completely obliterated, with the debris strewn well away from the structure. A large supporting cement and stone pillar was ripped completely out of the ground at this residence, pulling up a section of concrete foundation in the process. Scouring and pock-marking of the ground was noted in this area. Numerous homes were swept away along Lingerfelt Road as well. At one house that was swept away in this area, supporting concrete anchors were ripped out of the ground, a concrete porch was ripped off with pieces strewn up to 150 yd m away, a pick-up truck from the home was found mangled in pieces over 250 yd m away, and a safe weighing 800 lb kg was pulled off its anchorage and thrown into a wooded area 600 ft m away. When found, the safe's door had been ripped open and completely off. An underground storm shelter in this area had much of its dirt covering scoured away, the occupants of which reported that structure heaved upwards slightly as the tornado passed overhead. Pavement was scoured from several roads in the area, and a concrete porch was torn away and broken in half at another residence that was swept away.https://ams.confex.com/ams/26SLS/webprogram/Handout/Paper212695/sels12b.pdf Extreme Damage Incidents In The 27 April 2011 Tornado Superoutbreak National Oceanic and Atmospheric Administration/University of Alabama in Huntsville/Universities Space Research Association (jointly produced article) National Weather Service in Huntsville, Alabama/Birmingham, Alabama (both offices) Eugene W. McCaul, Jr. Kevin R. Knupp Chris Darden Kevin Laws 2011 July 1, 2013
thumb|left|An obliterated home along Skaggs Road.
The tornado continued across the eastern fringes of Sylvania, where a church was completely destroyed, a section of sidewalk was pulled up, and additional homes were swept away and scattered, though it was revealed that these homes were pushed off their foundations with limited anchorage. A high-end EF4 rating was applied in this area as a result. The tornado continued to level additional homes as it passed near Henagar and Ider, at which point it began to closely parallel I-59. It crossed into Georgia near Fox Mountain at EF1 intensity with winds of 110 mph km/h on. It tracked 3 mi km in into Georgia, crossing I-59 and moving through Rising Fawn before lifting outside of the community at 6:55 p.m. CDT/7:55 p.m. EDT (23:55 UTC). Damage in Georgia was limited to trees and power lines and minor structural damage to a few homes. This tornado came from the same supercell that produced the EF4 tornado that hit the town of Ringgold, Georgia, about 30 minutes later.http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=304706 NCDC Storm Events Database National Climatic Data Center National Oceanic and Atmospheric Administration 2011 May 22, 2016 April 5, 2016 https://web.archive.org/web/20160405111144/http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=304706 live
Shoal Creek Valley–Ohatchee–Piedmont, Alabama/Cave Spring, Georgia
Shoal Creek Valley–Ohatchee–Piedmont, Alabama/Cave Spring, Georgia April 27, 2011, 6:28 p.m. CDT (UTC−05:00) 1 hour, 47 minutes April 27, 2011, 9:15 p.m. EDT (UTC−05:00) Shoal Creek Valley Alabama Tornado April 27, 2011.jpg 300 The Shoal Creek Valley/Ohatchee EF4 tornado. 180 mph km/h on EF4 22 fatalities, 85 injuries
2011 Shoal Creek Valley–Ohatchee tornado
After the Tuscaloosa/Birmingham tornado dissipated, the same supercell produced this EF4 tornado at 6:28 p.m. CDT (23:28 UTC) near Argo, Alabama, in eastern Jefferson County. It went on to devastate the rural community of Shoal Creek Valley, located between Ashville and Ragland in St. Clair County, Alabama.http://www.srh.noaa.gov/bmx/?n=event_04272011ohatchee Argo-Shoal Creek-Ohatchee-Forney (Jefferson, St. Clair, Calhoun, Etowah, and Cherokee Counties) EF-4 Tornado April 27, 2011 National Oceanic and Atmospheric Administration National Weather Service in Birmingham, Alabama August 23, 2011 December 9, 2012 December 29, 2013 https://web.archive.org/web/20131229072525/http://www.srh.noaa.gov/bmx/?n=event_04272011ohatchee live
After touching down southwest of Argo, the tornado continued northeast of Odenville, producing EF0 to EF1 tree damage. Further east, the tornado intensified to EF3 strength and entered the rural community of Shoal Creek Valley, following along County Road 22/Shoal Creek Road for approximately 12.5 mi km, with the path and width varying greatly along the road. Many homes were left with only interior walls standing in this area. Some section of this path segment had damage that was much worse on one side of the road than the other, while other areas showed equal devastation on both sides of the road. The tornado reached mid-range EF4 intensity towards the end of the valley as it approached Neely Henry Lake. Additional homes were destroyed in this area, one was swept away, and thousands of trees were mowed down and debarked. The tornado maintained EF4 strength as it crossed the lake and tore across the north edge of Ohatchee, completely leveling or sweeping away numerous waterfront homes. Damage ranged from downed trees and roof damage to total destruction as the tornado roared through this area at 50 - 60 mph km/h on, packing winds of over 180 mph km/h on. The official count of homes destroyed or heavily damaged in Shoal Creek Valley and Ohatchee was 256. Most phone lines, power lines and poles were destroyed, and water lines were severed by uprooted trees. Entire homes were leveled, and in some cases completely removed by the storm, leaving only brick steps, a fireplace and chimney, or a slab behind. Barns, vehicles, tractors and heavy farming equipment were shredded and thrown up to 0.5 mi km away from where they originated. Livestock were thrown and killed, and the initial human death toll of 13 would eventually rise to 15 in the area.
thumb|left|A home swept off its foundation along Robins Mill Road.
The tornado caused mainly EF3 damage to homes as it passed north of Wellington, though a small pocket of EF4 damage occurred in the small rural community of Webster's Chapel, where a church and several homes were completely leveled or swept away, trees were reduced to stumps, and many other homes were left with only interior walls standing. The Silver Lakes Golf Course also sustained major damage in this area, where at least 50,000 trees were flattened and buildings were damaged or destroyed.http://www.gadsdentimes.com/article/20110604/NEWS/110609901?tc=ar Tornado-damaged Silver Lakes faces uncertain future GadsdenTimes.com October 13, 2015 December 8, 2015 https://web.archive.org/web/20151208141043/http://www.gadsdentimes.com/article/20110604/NEWS/110609901?tc=ar live Continuing northeast, the tornado produced high-end EF3 damage north of Piedmont, destroying mobile homes, snapping numerous trees, and leveling a house. Additional homes were leveled at high-end EF3 intensity near The Indian Mountain Tract before it continued across rural areas into Georgia. Many outbuildings and homes were destroyed, and many trees were downed across Polk, Floyd, and Bartow counties. Severe damage was noted near Cave Spring where chicken houses and homes were damaged or destroyed, and several people were injured. The damage in Georgia was rated EF2. The tornado finally dissipated near Kingston, Georgia, after having travelled for 97.33 mi km over the span of an hour and 47 minutes.http://www.srh.noaa.gov/ffc/?n=20110427_svrstorms#polk Polk, Floyd, and Bartow Counties National Oceanic and Atmospheric Administration National Weather Service in Peachtree City, Georgia May 10, 2011 December 9, 2012 October 6, 2012 https://web.archive.org/web/20121006164303/http://www.srh.noaa.gov/ffc/?n=20110427_svrstorms#polk live
This tornado's final death toll, combining fatalities in both St. Clair and Calhoun counties in Alabama, would eventually come to 22.
Ringgold, Georgia/Apison, Tennessee
Ringgold, Georgia/Apison, Tennessee 2011 Ringgold Tornado CCTV still.jpg A CCTV still of the tornado near Ringgold. April 27, 2011, 8:15 p.m. EDT (UTC−04:00) 52 minutes April 27, 2011, 9:07 p.m. EDT (UTC−04:00) 300 190 mph km/h on EF4 24 fatalities, 335 injuries
2011 Ringgold–Apison tornado
From the same supercell that spawned the EF5 tornado that struck Rainsville, this violent multiple-vortex tornado struck portions of extreme northern Georgia and southeast Tennessee during the mid-evening of April 27. It touched down along Davis Ridge Road in Catoosa County, Georgia, and moved through the town of Ringgold at EF3 strength, destroying numerous homes and businesses.http://www.srh.noaa.gov/ffc/?n=20110427_svrstorms#catoosa Catoosa County National Oceanic and Atmospheric Administration National Weather Service in Peachtree City, Georgia May 10, 2011 July 15, 2013 March 3, 2013 https://web.archive.org/web/20130303055104/http://www.srh.noaa.gov/ffc/?n=20110427_svrstorms#catoosa live A Baymont Inn & Suites, located near I-75 was partially destroyed by the tornado, along with a McDonald's, a Taco Bell, and several gas stations located on SR 151 in Ringgold at the I-75 interchange (exit 348). The Catoosa County Department of Family and Children Services and other businesses on Nashville Street in downtown Ringgold were also heavily damaged. The Kellerhals Center for Visual Arts Education at Ringgold High School was destroyed (RHS itself had minor damage), and Ringgold Middle School was heavily damaged.Dalton Daily Citizen http://daltondailycitizen.com/local/x58991204/Ringgold-devastated-after-tornado-touchdown Ringgold devastated after tornado touchdown April 29, 2011 April 30, 2011 dead https://archive.today/20120707190019/http://daltondailycitizen.com/local/x58991204/Ringgold-devastated-after-tornado-touchdown July 7, 2012 Past downtown Ringgold, the tornado reached EF4 intensity as it tore through a subdivision along Cherokee Valley Road at the north edge of town. Twelve homes were completely obliterated and swept away at that location (though they were not well-built). Several trees were denuded and debarked in this area as well. There were 74 destroyed homes and/or businesses, 60 with major damage, and 118 with minor damage for a total of 252 affected structures in the Ringgold area. Eight people were killed, mainly at the subdivision along Cherokee Valley Road.http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=305268 Storm Events Database NCDC June 15, 2014 July 18, 2014 https://web.archive.org/web/20140718223532/http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=305268 live
thumb|left|EF4 damage to a large brick home in Apison, Tennessee.
The storm then crossed the Tennessee state line at 8:28 p.m. EDT (00:28 UTC), and moved into Hamilton County, Tennessee, striking the small town of Apison at high-end EF4 strength, where large homes were leveled or swept away, 150 others were damaged, and thousands of trees were snapped and uprooted.http://www.srh.noaa.gov/mrx/?n=hamiltonbradleycollegedaleef4 Hamilton County – Bradley County – Collegedale EF4 Tornado Track and Photos National Oceanic and Atmospheric Administration National Weather Service in Morristown, Tennessee August 23, 2011 July 15, 2013 December 30, 2013 https://web.archive.org/web/20131230235634/http://www.srh.noaa.gov/mrx/?n=hamiltonbradleycollegedaleef4 livehttp://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=296789 Storm Events Database NCDC June 15, 2014 December 31, 2013 https://web.archive.org/web/20131231030440/http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=296789 live The tornado then crossed into Bradley County at low-end EF4 strength, moving across the southern and eastern fringes of Cleveland and affecting mainly residential areas, though a few businesses were damaged or destroyed as well. Subdivisions in the southern part of the city sustained major damage, with numerous houses destroyed and a few that were leveled. Four people were killed in Cleveland, and many others were injured.http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=300457 Storm Events Database NCDC June 15, 2014 December 31, 2013 https://web.archive.org/web/20131231024924/http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=300457 live Several trees were felled in Polk County as the tornado weakened to EF1-strength, before it crossed into McMinn County. The tornado re-intensified to EF2 and destroyed two houses and a mobile home before lifting south of Athens.NCDC Storm Events Database http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=353334 National Oceanic and Atmospheric Administration National Climatic Data Center 2011 January 20, 2013 December 30, 2013 https://web.archive.org/web/20131230234951/http://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=353334 live
The tornado killed 20 people and injured hundreds more along its 48 mi km on path across Catoosa, Hamilton, Bradley, Polk, and McMinn counties. The tornado was given a rating of EF4 with peak wind speed of 190 mph km/h on. The damage path of the tornado was 1/2 mi km wide. This tornado was only the eighth in Georgia to be categorized as an F4/EF4 since 1950, when current official tornado records begin.OKC Storm Watcher https://okcstormwatcher.wordpress.com/2011/04/29/ringgold-ga-tornado-confirmed-as-an-ef-4-tornado/ Ringgold, GA Tornado Confirmed as an EF-4 Tornado (4/27/2011) April 29, 2011 April 30, 2011 November 13, 2017 https://web.archive.org/web/20171113115402/https://okcstormwatcher.wordpress.com/2011/04/29/ringgold-ga-tornado-confirmed-as-an-ef-4-tornado/ live It would be the last EF4 tornado in the state until March 26, 2021, when Newnan was struck just after midnight.https://www.weather.gov/ffc/March25_26_2021_severe March 25–26, 2021 Severe Thunderstorms and Tornadoes National Oceanic and Atmospheric Administration National Weather Service in Peachtree City, Georgia March 28, 2021 April 8, 2021 April 6, 2021 https://web.archive.org/web/20210406213045/https://www.weather.gov/ffc/march25_26_2021_severe live
All roads in and out of Ringgold were closed until the morning of April 29; after roads leading to the affected areas were re-opened, residents and business owners were allowed to return, being allowed entry only by providing identification, and informing police a reason why they were entering into the area, in order to curb looting in the storm-damaged areas.WXIA-TV http://marietta.11alive.com/news/news/ringgold-residents-return-utter-devastation/59674 https://archive.today/20140621015915/http://marietta.11alive.com/news/news/ringgold-residents-return-utter-devastation/59674 dead June 21, 2014 Ringgold residents return to 'utter devastation' April 29, 2011 April 30, 2011
Dunlap–New Harmony–Graysville, Tennessee
Dunlap–New Harmony–Graysville, Tennessee 2011 Pitts Gap tornado damage.png 300 Tornado damage Damage in Pitts Gap, Tennessee 35 minutes April 27, 2011, 8:06 p.m. CDT (UTC-05:00) April 27, 2011 9:41 p.m. EDT (UTC-05:00) 190 mph km/h on EF4 4 fatalities, 12 injuries
This long tracked and violent tornado carved a 40.2 mile (67.4 km) path across eastern Tennessee, including Sequatchie, Bledsoe, and Rhea Counties. The tornado killed a total of 4 people, and injured 12. The tornado was rated EF4 on The Enhanced Fujita Scale, and cost a total $17.00 Million dollars in damage (2011 USD).https://www.ncei.noaa.gov/access/storm-events-database/event-details/300459 NOAAhttps://www.ncei.noaa.gov/access/storm-events-database/event-details/300460 NOAAhttps://www.ncei.noaa.gov/access/storm-events-database/event-details/300461 Event 300461 Storm Events Database, NOAA 2026-09-06
This tornado first touched down in Sequatchie County west of Dunlap. The tornado would cause significant damage to trees and powerlines throughout its path in Sequatchie County, including the southern side of Dunlap. Multiple homes suffered minor damage. After exiting Dunlap, the tornado would continue towards the northeast into Bledsoe County, and would begin to rapidly intensify to High-End EF4 intensity as it approached and hit Walden Ridge, and the southern side of Pitts Gap. In both Walden Ridge and Pitts Gap, numerous mobile homes were completely destroyed and ripped away resulting in two fatalities. An additional two fatalities had also occurred when the tornado had struck a camper-trailer, which three people had been residing in at the time, with only one resident of the camper-trailer surviving, yet sustaining major injuries. An apartment made of metal located in Pitts Gap was completely swept off of its concrete foundation. No Fatalities occurred in this apartment. The tornado would continue to destroy over two dozen homes as it tracked into the community of New Harmony, where a 1,000+ acre farm was completely destroyed.https://insurancenewsnet.com/oarticle/five-years-after-deadly-tornadoes-pain-still-lingers-in-bledsoe-county Five years after deadly tornadoes, pain still lingers in Bledsoe County The tornado continued to the northeast into Rhea County, where several more homes were completely destroyed at EF4 intensity west of Graysville, and numerous trees and power lines were downed. However, the tornado had begun to rapidly weaken, and the tornado would dissipate as it struck Spring City.
Eclectic–Lake Martin–Dadeville, Alabama
Eclectic–Lake Martin–Dadeville, Alabama 2011 Lake Martin, Alabama EF4 tornado.webp 300 The tornado being illuminated by lightning as it approached Lake Martin. 57 minutes April 27, 2011, 8:12 p.m. CDT (UTC–05:00) April 27, 2011, 9:09 p.m. CDT (UTC–05:00) 170 mph km/h on EF4 7 fatalities, 30 injuries
This long-tracked and violent tornado struck areas around Lake Martin in east central Alabama. The tornado caused large swaths of EF4 damage, particularly to homes on the shores of Lake Martin.A look back at the April 2011 Tornado that hit the Eclectic and Lake Martin areas https://www.montgomeryadvertiser.com/picture-gallery/news/local/2021/04/25/april-2011-fatal-tornado-elmore-county-alabama/7307023002/ July 29, 2024 Montgomery Advertiser en-US Many homes were completely swept off their foundations, and hundreds of trees were uprooted by the tornado. It reached EF3 intensity at least three times, and reached its maximum intensity of low-end EF4 in Lake Martin.
The tornado first touched down north of Wetumpka in Elmore County,Advertiser Montgomery EF4 tornado on Apr. 27, 2011 15:35 PM CDT https://data.montgomeryadvertiser.com/tornado-archive/alabama/309071/ July 29, 2024 Montgomery Advertiser en south of Charity Lane at approximately 8:12 p.m. CDT (01:12 UTC). It began to track just east of due north along Grier Road (CR 209) at high-end EF1 intensity, snapping trees and blowing out the south facing gable-end of the roof of a home.Lake Martin Tornado - April 27, 2011 https://www.weather.gov/bmx/event_04272011lakemartin www.weather.gov National Weather Service Birmingham AL August 5, 2024 EN-USAlabama Event Report: EF3 Tornado https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=315331 www.weather.gov National Weather Service Birmingham AL August 5, 2024 The tornado then turned northeastward, continuing to snap and uproot trees as it moved through generally unpopulated, rural areas. The tornado then intensified to high-end EF2 intensity with winds of 130 mph kph on as it passed through the northwest side of Dexter, heavily damaging several homes. One home had its roof removed and a section of an exterior wall knocked down and a mobile home was rolled and obliterated with the debris blown several hundred yards. The residents of the mobile home had seen the tornado warning issued on their TV and went to a neighbor's house for safety before the tornado struck. There was major damage to farm equipment and outbuildings in this area as well.
left|thumb|225x225px|EF2 damage to trees located off AL 9 northeast of Dexter.
The tornado continued northeastward through forested areas, continuing to cause EF2 damage. A home along Powell Road had its roof removed and multiple exterior walls knocked down. Eight people in the home received the warning and took shelter in a hallway before the tornado struck; only one of them was injured. Three barns and several outbuildings and tractors on the property were completely destroyed as well. The tornado then tracked over neighborhoods along SR 9, damaging several homes, and debarking and snapping trees. Another mobile home in this area was rolled and disintegrated with the appliances found 400 yd m away. The occupants heard warning and sought shelter in the basement of a home across the road before. The tornado then passed south of Central, continuing to cause EF2 damage in densely forested areas.
The tornado then intensified to EF3 strength as it reached Central Road (CR 418). A mobile home along the road was completely destroyed; its two occupants heard the warning, but were unable to get to safe shelter, resulting in them being trapped and seriously injured in the debris of the home. Northeast of there along Old Colley Road (CR 417), several homes had their roofs blown off with one home having exterior walls knocked down. The tornado then crossed the Middle Road and Auction Barn Road intersection and struck a mobile home park, destroying 10 mobile homes and killing four people. A home in the park was struck by the debris from the mobile homes and the exterior and the interior walls in the middle of the home were knocked down. The tornado then weakened to EF2 intensity as it continued to track northeastward through densely forested areas and passed just narrowly south of the town of Falkner, causing mainly tree damage, although one home along Union Road suffered heavy roof and exterior wall damage. The tornado then strengthened to EF3 intensity again as it moved along Mount Hebron Road (CR 80) east of Falkner. Several homes, businesses, including the W W Monument Company, two churches, and an agricultural nursery were completely destroyed in this area. One of the churches (Mount Baptist Church) had sanctuary debris blown 100 – 200 yd m, the second-story of a split level home was removed, and a home along Nero Rock Road was unroofed and had two exterior walls knocked down. The tornado then weakened back to EF2 intensity and passed just north of Jordan, narrowly missing it. As it approached Lake Martin, the tornado uprooted and snapped numerous trees. The tornado then crossed over SR 63 and tracked into the Lake Martin area, maintaining EF2 strength as it crossed over the lake south of the SR 63 bridge. After moving ashore, the tornado regained EF3 intensity as it grew to its peak width of 0.5 mi km and reached Windermere. Numerous trees were snapped and partially debarked, thin electrical transmission towers were crumbled, and numerous homes suffered significant damage.
thumb|240x240px|left|EF4 damage to lakeside homes and boats on Mountain View Way
The tornado then tracked back into Lake Martin and crossed in Tallapoosa County while retaining EF3 intensity. The tornado then became violent, reaching low-end EF4 strength with winds up to 170 mph kph on as it moved ashore on Stoney Ridge Road.Alabama Event Report: EF4 Tornado https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=315334 www.weather.gov National Weather Service Birmingham AL August 6, 2024 Several well-built multi-story homes were leveled with no walls left standing above the basement level. This included a two-story home located on the northern portion of Sandy Lane that was leveled with debris from the structure thrown into the lake. Four lakeside homes located off Mountain View Way were also leveled. Continuing northeastward, the tornado narrowed to 400 yd m, but remained at low-end EF4 intensity as it crossed SR 49, destroying two homes. One of the homes was a wood-frame house on a CMU stack column pier foundation; this home was completely obliterated and a Ford F-150 pickup truck that was parked in the driveway was thrown over 150 – 200 yd m and mangled.
thumb|240x240px|left|EF4 damage to a two-story house along Lake Martin
Trees were also debarked in the area of the slabbed residence. The tornado then weakened to EF3 intensity as it continued northeastward and tracked through forested areas before moving into the southeastern part of Dadeville. The tornado then crossed US 280 on the east side of town, significantly damaging several homes and businesses. An elderly woman was killed in one of the homes and winds in this area were estimated to be up to 155 mph kph on. The tornado continued northeastward through forested areas, before crossing into Chambers County.right|thumb|EF3 damage to a 100-year-old home located on County Road 54
The tornado remained at EF3 intensity as it moved into Chambers County and continued its northeastward heading. Along County Road 54, a 100-year-old wood-framed home on a brick column pier raised foundation was completely obliterated; winds in this area were estimated to be up to 150 mph kph on.Alabama Event Report: EF3 Tornado https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=315335 www.weather.gov National Weather Service Birmingham AL August 6, 2024 The tornado then gradually weakened as it continued northeastward through densely forested areas. Trees were snapped or uprooted along this final portion of the path before the tornado dissipated at 9:09 p.m. CDT (02:09 UTC) after tracking 44.18 mi km and reaching a maximum width of 880 yd m.April 27, 2021 April 27, 2011 tornadoes, moment-by-moment: How it happened https://www.al.com/news/2021/04/april-27-2011-tornadoes-moment-by-moment-how-it-happened.html July 29, 2024 al en Pilot Charles Moon surveyed the path and drew out an area of "total destruction".Photo: Path of tornado at Lake Martin - April 27, 2011 https://www.lakemartin.com/Gallery/Photo/026FE115-46C6-40A3-8FE3-3B6BD0419A7F/C2E7BCE6-39E6-433F-906B-E3621C7FF633/ July 29, 2024 www.lakemartin.com Losses totaled $167 million (2011 USD). Seven people were killed by the tornado, and 30 others were injured.Sebree Tyler April 28, 2021 April 27, 2011: The unprecedented tornado outbreak https://www.wsfa.com/2021/04/27/april-unprecedented-tornado-outbreak/ July 29, 2024 WSFA en
Turners Corner–Lake Burton–Mountain City, Georgia
Turners Corner–Lake Burton–Mountain City, Georgia 300 37 minutes April 27, 2011, 10:39 p.m. EDT (UTC-05:00) April 27, 2011, 11:16 p.m. EDT (UTC-05:00) 165 mph km/h on EF3 1 fatality
This intense and long tracked EF3 tornado first touched near Turners Corner in Lumpkin County. The tornado would quickly track towards the northeast, tearing a 1.6 mi km long track across Lumpkin County, before moving into White County, tracking towards Whitley Gap Shelter.https://www.ncei.noaa.gov/access/storm-events-database/event-details/306267 Lumpkin County EF2 Storm Events Database The tornado primarily tracked through the Chattahoochee National Forest, primarily destroying numerous trees along it's path, however, it also struck multiple homes, two of which would sustain major damage, and another six would sustain minor damage. No casualties occurred in White County. https://www.ncei.noaa.gov/access/storm-events-database/event-details/306309 White County EF2 Storm Events Database The tornado would continue into Habersham County, continuing to track through secluded and forested areas north of Batesville. Numerous trees were snapped and uprooted as the tornado tracked northeast towards Goshen Mountain Rd. About eight homes along Goshen Mountain Rd sustained minor to moderate roof damage, and some snapped trees fell onto vehicles in the area. Other homes had porches completely blown away and a small cabin was destroyed.https://www.ncei.noaa.gov/access/storm-events-database/event-details/292506 Habersham County EF2 Storm Events Database
The tornado continued into Rabun County, continuing to cause damage to areas along and near Lake Burton. Intense damage occurred near a marina on Wildcat Creek Cove, including the complete destruction of a fire department building. The tornado would then track across Moccasin Creek, where it would continue to intensify and widen to 0.5 mi km wide. Several lake homes were destroyed in this area. One lake home slid off its foundation and fell into Lake Burton. The tornado continued across the Moccasin Creek peninsula and over the main channel of Lake Burton. The tornado continued to cause damage to the northern shore of Timpson Cove, paralleling Meeting House Mountain Rd. Several large luxury homes were destroyed, and several others sustained major damage. One person was killed in one of the destroyed homes in this area. Numerous trees were also blown down in the Lake Burton area. The tornado began to weaken as it crossed Highway 76 northeast of Timpson Cove as it proceeded towards Black Rock Creek Park, continuing to blow down hundreds of trees. After moving through the park, the tornado began to intensify a second time, as it moved into and hit residential areas of Mountain City. A Condominium building had half of its roof blown away, and several nearby homes sustained minor to moderate roof damage. The tornado would dissipate after crossing Highway 441 north of Mountain City.https://www.ncei.noaa.gov/access/storm-events-database/event-details/301771 Rabun County EF3 Storm Events Database
Overall, the tornado was rated EF3 with winds up to 165 mph km/h on, A path length extending for 33.99 mi km, and a maximum path width of 900 yd m. This tornado was the first tornado to hit Rabun County since 1983, and was the first tornado to be rated EF3/F3 in the county's history.
Clearwater Springs–Barnesville–Blount, Georgia
Clearwater Springs–Barnesville–Blount, Georgia 2011 Barnesville, Georgia tornado.jpg 300 Tornado with a censored logo The nocturnal tornado near Barnesville, Georgia. 39 minutes April 28, 2011, 12:38 a.m. EDT (UTC-05:00) April 28, 2011, 1:17 a.m. EDT (UTC-05:00) 140 mph km/h on EF3 2 fatalities, 22 injuries
thumb|left|A house in Barnesville that was destroyed at EF3 intensity
This strong, and long tracked tornado first developed south of Clearwater Springs in Pike County near U.S. Highway 19, or 3 mi km south of Meansville. The tornado quickly began moving northeast through rural Pike County, knocking down several trees and power lines, before tracking into Lamar County.https://www.ncei.noaa.gov/stormevents/eventdetails.jsp?id=306882 NOAA After entering Lamar County, the tornado would begin to rapidly intensify as it approached the town of Barnesville. West of Barnesville along Piedmont Road, three homes were completely destroyed. After entering Barnesville, the tornado would continue to destroy several homes, with many suffering minor to moderate damage. The tornado would kill two people on Grove Street when it would hit and destroy their homes. Both a Chevron Gas Station, and Church in Barnesville were also destroyed by the tornado. After tracking through Barnesville, the tornado would continue northeast while weakening, causing minor EF1 damage to forested areas on the eastern side of Lamar county.https://www.ncei.noaa.gov/stormevents/eventdetails.jsp?id=306883 NOAA
The tornado would continue it's track, and cross into Monroe County, where it would strengthen a second time, snapping Softwood Trees at EF2 intensity.https://apps.dat.noaa.gov/StormDamage/DamageViewer/ Damage Assessment Toolkit After entering Monroe County, the tornado would cross Interstate-75 near mile marker 196. Along the interstate, three 18-wheel tractor-trailers were blown off the interstate. Multiple residents would sustain moderate damage from the tornado. The most major damage to residents in Monroe County occurred in Highland Falls State Park, and the community of Blount, where a home had a large section of its roof completely blown away. After passing through the southern side of Blount, the tornado began to weaken again, before crossing into Butts County, where it would continue to cause minor tree damage before dissipating.https://www.ncei.noaa.gov/stormevents/eventdetails.jsp?id=306887 NOAA
Non-tornadic effects
Flooding (April 25–28)
2011 Mississippi River floods
thumb|right|Rainfall totals within the United States for the week ending during the morning of April 29, 2011, which shows the extent of the heavy rain event this cyclone contributed towards.
This storm system prolonged an ongoing heavy rain event, which began across Arkansas and Missouri on April 22. Weekly rainfall totals reached 19.73 in mm 6 mi km east-northeast of Springdale, Arkansas, 16.20 in mm 4 mi km northwest of Poplar Bluff, Missouri, and 14.96 in mm at Westville, Oklahoma.http://www.wpc.ncep.noaa.gov/winter_storm_summaries/2011/storm11/stormsum_21.html DavidHamrick Weather Prediction Center May 1, 2011 April 28, 2011 Storm Summary 21 for Central and Eastern U.S. Heavy Rain Event March 4, 2016 https://web.archive.org/web/20160304074849/http://www.wpc.ncep.noaa.gov/winter_storm_summaries/2011/storm11/stormsum_21.html live On April 25, 2011, thunderstorms with high winds swept through parts of southern and southeastern Ohio. Straight-line winds estimated at 80 mph km/h uprooted trees, damaged roofs, and downed power lines through Perry County, Ohio, and Athens County, Ohio. Strong thunderstorms and heavy downpours which led to flooding were also reported in areas across Upstate New York with heavy flooding in the Syracuse area. The rain also saturated hundreds of lakes in the Adirondack Mountains. I-81 was briefly shut down in the downtown area at rush hour and the State University of New York Upstate Medical University also closed briefly due to flooding in the lobby.McChensey Charles Severe storms, flash floods strike Central New York http://www.syracuse.com/news/index.ssf/2011/04/severe_storms_flash_floods_str.html Syracuse.com/The Post-Standard April 27, 2011 April 27, 2011 April 30, 2011 https://web.archive.org/web/20110430075129/http://www.syracuse.com/news/index.ssf/2011/04/severe_storms_flash_floods_str.html live Heavy rains combined with rapid snowmelt caused widespread flooding across Vermont on April 26–27. Over the two-day period, up to 5 in mm of rain fell across the northern third of Vermont, and up to 3 in mm elsewhere across the state and extending into western Massachusetts. Numerous roads were closed across Vermont due to flooding, with some roads being completely washed out.http://www.uvm.edu/~vtstclim/Documents/pdfs/VT_April_2011.pdf Climate Impacts Summary April 2011, Vermont State Climate Office, Accessed March 7, 2022 March 8, 2022 February 18, 2022 https://web.archive.org/web/20220218071323/http://www.uvm.edu/~vtstclim/Documents/pdfs/VT_April_2011.pdf live
Farther south, flash flooding late on April 26 resulted in two fatalities in Monroe, Louisiana, after an apartment complex was swamped. The flooding there was considered to be worse than the flooding after Hurricane Gustav in 2008.The Tornado Outbreak of April 25–27, 2011 http://www.srh.noaa.gov/shv/events/select.php?date=04262011_1 National Oceanic and Atmospheric Administration National Weather Service in Shreveport, Louisiana July 11, 2011 April 26, 2011 dead https://web.archive.org/web/20160303205221/http://www.srh.noaa.gov/shv/events/select.php?date=04262011_1 March 3, 2016 In central and northern Arkansas, up to 10.44 in mm of rain was reported during that week. The resulting flash flooding in central Arkansas also resulted in five people losing their lives. Many roads were closed due to the flooding there. The flooding was mitigated somewhat by a significant drought that had existed before the storm.
Other effects
Severe thunderstorms were reported as far north as Northern Ontario on the evening of April 26. Heavy rains and minor flooding were also reported in Northern Ontario from April 26–28.Sault Star http://www.saultstar.com/2011/04/28/old-hospital-site-floods-updated-at-136-pm Old hospital site floods April 28, 2011 July 15, 2013 https://web.archive.org/web/20120806190258/http://www.saultstar.com/2011/04/28/old-hospital-site-floods-updated-at-136-pm August 6, 2012 deadSudbury Star http://www.thesudburystar.com/2011/04/27/rain-soaks-sudbury Rain soaks Sudbury April 27, 2011 July 15, 2013 https://web.archive.org/web/20151222082441/http://www.thesudburystar.com/2011/04/27/rain-soaks-sudbury December 22, 2015 deadSudbury Star http://www.thesudburystar.com/ArticleDisplay.aspx?e=3100195 Keep eye out for possible flooding, city advises April 28, 2011 July 15, 2013 https://web.archive.org/web/20120322094650/http://www.thesudburystar.com/ArticleDisplay.aspx?e=3100195 March 22, 2012 deadNorth Bay Nugget http://www.nugget.ca/ArticleDisplay.aspx?e=3100171 Ice is off, and a flood warning issued April 29, 2011 July 15, 2013 https://web.archive.org/web/20111001001921/http://www.nugget.ca/ArticleDisplay.aspx?e=3100171 October 1, 2011 dead Windstorms were also reported in Southern Ontario and Southern Quebec which resulted in several injuries and one death, damages and power outages.Ottawa Citizen https://ottawacitizen.com/news/Three+women+seriously+hurt+spring+windstorm+whips+through+Ottawa/4691025/story.html Three women seriously hurt as spring wind storm whips through Ottawa April 29, 2011 July 15, 2013 dead https://web.archive.org/web/20110502213722/http://www.ottawacitizen.com/news/Three%2Bwomen%2Bseriously%2Bhurt%2Bspring%2Bwindstorm%2Bwhips%2Bthrough%2BOttawa/4691025/story.html May 2, 2011 The Weather Network (Canada) http://www.theweathernetwork.com/news/storm_watch_stories3&stormfile=assessing_the_damage_in_onta_280411?ref=ccbox_weather_category1 Wednesday's damage in Ontario being investigated April 29, 2011 April 30, 2011 dead https://web.archive.org/web/20120402135837/http://www.theweathernetwork.com/news/storm_watch_stories3%26stormfile%3Dassessing_the_damage_in_onta_280411?ref=ccbox_weather_category1 April 2, 2012 The Weather Network (Canada) http://www.theweathernetwork.com/news/storm_watch_stories3&stormfile=winds_whip_through_ontario_280411?ref=ccbox_weather_topstories Fierce winds whip through Ontario April 29, 2011 April 30, 2011 dead https://web.archive.org/web/20110502204825/http://www.theweathernetwork.com/news/storm_watch_stories3%26stormfile%3Dwinds_whip_through_ontario_280411?ref=ccbox_weather_topstories May 2, 2011 http://lejournaldemontreal.canoe.com/actualites/faitsdiversetjudiciaires/archives/2011/04/20110428-162908.html Les vents violents font un mort en Ontario Actualités Journal de Montréal April 28, 2011 May 8, 2011 frApril 2026 medicmedichttp://zone911.fm93.com/actualites/accidents/item/12689-des-vents-violents-causent-des-d%C3%A9sagr%C3%A9ments-dans-la-r%C3%A9gion-de-montr%C3%A9al Des vents violents causent des désagréments dans la région de Montréal François Houde April 29, 2011 Zone911.com May 8, 2011 fr dead https://web.archive.org/web/20120323170111/http://zone911.fm93.com/actualites/accidents/item/12689-des-vents-violents-causent-des-d%C3%A9sagr%C3%A9ments-dans-la-r%C3%A9gion-de-montr%C3%A9al March 23, 2012
Other fatalities due to straight-line winds occurred early on April 26 in McComb, MississippiStorm Prediction Center National Oceanic and Atmospheric Administration April 25, 2011 April 25, 2011 Storm Reports for April 25, 2011 https://www.spc.noaa.gov/climo/reports/110425_rpts.html and early on April 27 in Moody, Alabama, Vestavia Hills, Alabama, and Franklin, Tennessee, from the squall line with embedded tornadoes.https://www.spc.noaa.gov/climo/reports/110426_rpts.html NWS Storm Reports April 27, 2011 Storm Predition Center
Aftermath
300px|thumb|left|Full map of the 2011 Super Outbreak documenting the amount of tornadoes and tornado warnings issued, along with tornado deaths
Summary
With 367 confirmed tornadoes and 324 tornadic fatalities, the outbreak ranks as the largest and one of the worst in United States history. More than three dozen tornadoes were confirmed each day of the event, with 42 on April 25, 55 on April 26, a 24-hour record of 223 on April 27, and 47 on April 28. In terms of violent tornadoes, the event ranks third with 15 EF4/5 rated tornadoes, behind the 1974 Super Outbreak and 1965 Palm Sunday outbreak. The outbreak, like 1974, was named a "Super Outbreak" in the aftermath, due to the unprecedented size, intensity and devastation that this outbreak caused across the Southeastern United States.
Fatalities
+Fatalities during the outbreak by U.S. stateStateApril 25April 26April 27April 28TotalAlabama0021220232Arkansas51107Georgia (U.S. state) Georgia007815Mississippi0132134Tennessee00191130Total5227140~318
Although the exact number of people killed during the outbreak is a source of debate, the generally accepted number is in the 300–350 range.Brinkmann Heather April 26, 2022 Super Outbreak of 2011: 350 tornadoes killed 321 people https://www.foxweather.com/extreme-weather/april-2011-tornado-outbreak January 13, 2025 FOX Weather en-US 271 of those deaths occurred on April 27, the date of peak activity.April 27, 2021 Alabama marks 2011 tornado outbreak that killed hundreds https://apnews.com/article/kay-ivey-environment-and-nature-tuscaloosa-alabama-tornadoes-524326a7536ca2acf94b15a5b915380a January 13, 2025 AP News en
The high number of fatalities on April 27 was studied in detail following the event. Despite 92 tornado warnings being issued for Alabama,Morgan Leigh April 27, 2018 April 27, 2011: Why did so many die that day? https://www.al.com/news/2018/04/april_27_2011_why_did_so_many.html January 13, 2025 AL en 271 people were killed, many in poorly built homes. In a study of people killed during the outbreak published by the American Journal of Public Health, it was determined that only 102, or 41.3%, out of the 247 victims studied received a warning.Chiu Cindy H. Schnall Amy H. Mertzlufft Caitlin E. Noe Rebecca S. Wolkin Amy F. Spears Jeanne Casey-Lockyer Mary Vagi Sara J. Mortality from a tornado outbreak, Alabama, April 27, 2011 American Journal of Public Health August 2013 103 8 e52-8 10.2105/AJPH.2013.301291 23763401 4007884 e5-e6 It was determined that the majority of fatalities during the outbreak happened because of a lack of adequate community shelters in rural communities throughout Alabama.DeMonia Robin December 11, 2011 Alabama tornadoes: Many areas lack storm shelters https://www.al.com/spotnews/2011/12/alabama_tornadoes_many_areas_l.html January 13, 2025 AL en
Immediate recovery efforts
Alabama Governor Robert J. Bentley declared a state of emergency in the state of Alabama on April 27, due to storm damage from severe thunderstorms earlier that day as well as forthcoming severe weather later that day. States of emergency were also declared in Arkansas, Kentucky, Mississippi, Missouri, Tennessee, and Oklahoma because of the flooding and tornadoes.Travel Weekly http://www.travelweekly.co.uk/Articles/2011/04/28/36968/state-of-emergency-declared-in-seven-us-states.html State of emergency declared in seven US states April 28, 2011 July 15, 2013 May 1, 2011 https://web.archive.org/web/20110501103104/http://www.travelweekly.co.uk/Articles/2011/04/28/36968/state-of-emergency-declared-in-seven-us-states.html dead Following the tornado outbreak on the evening of April 27, President Barack Obama granted a federal emergency declaration for the state of Alabama, giving federal assistance, including search and rescue assets, to the affected region.The White House https://obamawhitehouse.archives.gov/the-press-office/2011/04/27/president-obama-signs-alabama-emergency-declaration President Obama Signs Alabama Emergency Declaration April 27, 2011 July 14, 2014 February 16, 2017 https://web.archive.org/web/20170216165258/https://obamawhitehouse.archives.gov/the-press-office/2011/04/27/president-obama-signs-alabama-emergency-declaration live
More than 2,000 National Guard troops were deployed to Alabama, assisting local and state first responders in search and rescue efforts.CNN http://whitehouse.blogs.cnn.com/2011/04/28/white-house-mobilizes-response-in-wake-of-deadly-storms/ White House mobilizes response in wake of deadly storms Lesa Jansen April 28, 2011 July 15, 2013 September 19, 2012 https://web.archive.org/web/20120919154425/http://whitehouse.blogs.cnn.com/2011/04/28/white-house-mobilizes-response-in-wake-of-deadly-storms/ dead President Obama visited the affected areas of Alabama on April 29.https://www.bbc.co.uk/news/world-us-canada-13233106 Barack Obama pledges to help US tornadoes recovery April 29, 2011 BBC News Online British Broadcasting Corporation April 29, 2011 https://web.archive.org/web/20110429033454/http://www.bbc.co.uk/news/world-us-canada-13233106 April 29, 2011 Also on April 29, he approved a federal disaster declaration for seven Mississippi counties: Clarke, Greene, Hinds, Jasper, Kemper, Lafayette, and Monroe.Hattiesburg American http://www.hattiesburgamerican.com/article/20110429/ONLINEONLY/110429017 Mississippi receives federal disaster declaration April 29, 2011 July 15, 2013July 2016
Electricity outage
Storms through the area severely damaged Tennessee Valley Authority (TVA)'s power grid for transmitting electricity throughout the region. More than 300 power transmission towers, 120 to 150 ft m tall, were destroyed in the storms, some "twisted like bow ties" according to National Weather Service meteorologist Eric Holweg. The towers supported some 90 transmission lines, a mixture of 500kV and 161kV lines. Those lines provided power from TVA to 128 regional distributors.https://timesfreepress.com/news/2011/may/03/tva-expects-damaged-transmission-power-lines-repai/ TVA expects damaged transmission power lines repaired by end of summer May 3, 2011 May 5, 2011 Pam Sohn Chattanooga Times Free Press https://web.archive.org/web/20110524041741/http://www.timesfreepress.com/news/2011/may/03/tva-expects-damaged-transmission-power-lines-repai/ May 24, 2011 https://timesfreepress.com/news/2011/may/03/90-high-voltage-power-towers-twisted-bow-ties/ High-voltage power towers 'twisted like bow ties' May 3, 2011 May 5, 2011 Pam Sohn Chattanooga Times Free Press https://web.archive.org/web/20110524041626/http://www.timesfreepress.com/news/2011/may/03/90-high-voltage-power-towers-twisted-bow-ties/ May 24, 2011
thumb|Transmission tower bent near Huntsville, Alabama.
TVA lost the ability to transmit power from both Browns Ferry Nuclear Power Plant and Widows Creek Fossil Plant after the storms on April 27, requiring both to be shut down. The nuclear plant's cold shutdown was supported by diesel generators for four days until a second 161kV line could be restored to the plant. The loss of redundant off-site power required a "notification of unusual event", the lowest of four levels of concern dictated by the NRC. Some 60 percent of the sirens for warning residents of worse problems around Browns Ferry were disabled by the storms, and the plant had to arrange plans to use cars with loudspeakers to warn residents in case of another problem. The Nuclear Regulatory Commission stated at a press conference: "The plants' conditions are stable and are being placed in a cooled-down condition."NRC: 'Bama nuke plant shut down safely https://www.upi.com/Top_News/US/2011/04/28/NRC-Bama-nuke-plant-shut-down-safely/UPI-64291304024604/ April 28, 2011 April 28, 2011 UPI May 2, 2011 https://web.archive.org/web/20110502154850/http://www.upi.com/Top_News/US/2011/04/28/NRC-Bama-nuke-plant-shut-down-safely/UPI-64291304024604 livehttps://timesfreepress.com/news/2011/apr/30/nuclear-sirens-conk-out-storm/ Nuclear sirens conk out in storm Chattanooga Times Free Press April 30, 2011 May 6, 2011 May 4, 2011 https://web.archive.org/web/20110504122313/http://www.timesfreepress.com/news/2011/apr/30/nuclear-sirens-conk-out-storm/ live
Huntsville was the largest city with no electricity from TVA. All the traffic lights were off, a dusk-to-dawn curfew was imposed, students were sent home from United States Space Camp, and the Panoply Arts Festival was canceled.http://www.wsoctv.com/news/27722984/detail.html Classmates Recount Terrifying Night Of Tornadoes At Space Camp WSOC-TV April 29, 2011 May 5, 2011 dead https://web.archive.org/web/20110509034424/http://www.wsoctv.com/news/27722984/detail.html May 9, 2011 http://www.peninsuladailynews.com/article/20110429/news/304299984/port-angeles-man-witnesses-alabama-twister Port Angeles man witnesses Alabama twister Rob Ollikainen Peninsula Daily News April 28, 2011 May 5, 2011 July 21, 2011 https://web.archive.org/web/20110721202729/http://www.peninsuladailynews.com/article/20110429/news/304299984/port-angeles-man-witnesses-alabama-twister livehttp://blog.al.com/entertainment-times/2011/04/panoply_arts_festival_canceled.html Panoply Arts Festival canceled, food vendors helping city The Huntsville Times April 29, 2011 May 7, 2011 Sarah Cure May 3, 2011 https://web.archive.org/web/20110503054220/http://blog.al.com/entertainment-times/2011/04/panoply_arts_festival_canceled.html live Power was restored gradually to Huntsville, beginning with 3 percent on the morning of May 1.http://www.madisoncountyrecord.com/2011/05/01/some-power-restored-to-huntsville-area/ Some power restored to Huntsville area Madison County Record May 1, 2011 May 5, 2011 May 4, 2011 https://web.archive.org/web/20110504063252/http://www.madisoncountyrecord.com/2011/05/01/some-power-restored-to-huntsville-area/ live Only localized outages remained eight days after the storm.http://blog.al.com/breaking/2011/05/huntsville_utilities_has_power.html Huntsville Utilities has power back to most customers, some still waiting AL.com May 5, 2011 May 5, 2011 Brian Lawson March 4, 2012 https://web.archive.org/web/20120304031802/http://blog.al.com/breaking/2011/05/huntsville_utilities_has_power.html live In addition to traffic and safety issues, the outage caused difficulties with water treatment and distribution and retail of all kinds, including gasoline and food purchases.http://blog.al.com/spotnews/2011/04/alabama_tornadoes_small_store.html Alabama tornadoes: Small store at Warrior thrives as people search for gas, food and refreshment AL.com Birmingham News May 5, 2011 April 28, 2011 Lisa Osburn August 24, 2011 https://web.archive.org/web/20110824033956/http://blog.al.com/spotnews/2011/04/alabama_tornadoes_small_store.html live
Ontario electricity outages were minor, mostly caused by the windstorms of April 28. Although they affected thousands of people at different times throughout the day, all power was restored by the end of the day.
See also
Tornadoes Weather United States
Tornadoes of 2011
Weather of 2011
List of North American tornadoes and tornado outbreaks
List of F5 and EF5 tornadoes
List of F4 and EF4 tornadoes
List of disasters in the United States by death toll
Tornado records
List of notable media in the field of meteorology
Notes
note
nb
References
Further reading
Chiu Samantha Mesoscale and Stormscale Ingredients of Tornadic Supercells Producing Long-track Tornadoes in the 2011 Alabama Super Outbreak M.S. Thesis University of Illinois Urbana-Champaign 2013 2142/45431
The Influence of Terrain during the 27 April 2011 Super Tornado Outbreak and 5 July 2012 Derecho around the Great Smoky Mountains National Park https://web.archive.org/web/20200204234746/https://ams.confex.com/ams/26SLS/webprogram/Paper220492.html February 4, 2020
Thompson Richard L. M.D. Vescio 1998 The Destruction Potential Index – a method for comparing tornado days (DPI) https://www.spc.noaa.gov/publications/thompson/dpi/dpi.htm Minneapolis, MN American Meteorological Society 19th Conference on Severe Local Storms April 14, 2022 March 6, 2023 https://web.archive.org/web/20230306100235/https://www.spc.noaa.gov/publications/thompson/dpi/dpi.htm live
External links
NWS Service Assessment https://web.archive.org/web/20200601170004/https://www.weather.gov/media/publications/assessments/historic_tornadoes.pdf June 1, 2020
Hook–Echo.com Tornado Outbreak Overview https://web.archive.org/web/20110503041544/http://hook-echo.com/2011/04/28/april-27-2011-tornado-outbreak-tuscaloosa-and-birmingham-alabama/ May 3, 2011
Time lapse visualization of the April 25–28 tornado outbreak https://web.archive.org/web/20130422073508/http://www.stormtimemachine.com/ April 22, 2013
Interactive map of all the tornado paths during the April 25–28 outbreak
Videotaped presentations on the 27 April 2011 Super Tornado Outbreak in east Tennessee and southwest Virginia https://web.archive.org/web/20200410163134/https://www.weather.gov/mrx/outbreak_presentation April 10, 2020 (NWS Morristown, TN)
Emergency Tornado Aid
National Red Cross
Tuscaloosa News People Finder https://web.archive.org/web/20110430233530/http://www.tuscaloosanews.com/article/20110428/MULTIMEDIA/110429676 April 30, 2011 – Set up by local newspaper to aid in finding loved ones and friends missing in the tornado.
Memorials
University of Alabama Holds Memorial Ceremony Honoring Students who Died in Disaster as well as First Responders
Pictures from Tuscaloosa, Alabama
Tornado Damage in Tuscaloosa, Alabama
Video
Overhead view of Cullman, Alabama damage https://web.archive.org/web/20170111061104/https://www.youtube.com/watch?v=hR83MBQNGqw January 11, 2017
Detailed Radar loop of Northern Alabama, Eastern Mississippi, and Southern Tennessee https://web.archive.org/web/20160413055959/https://www.youtube.com/watch?v=J8uSIQLftME April 13, 2016
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