2011 Musselshell River flood

2011 flood in Montana, USA May 2025 February 2025 The 2011 flooding on the Musselshell River in Montana began about May 21, affecting large parts of central Montana.bg1cbs At Mosby, Montana, the river crested at 16 ft m on Monday, May 23. The flood level at Mosby is 8 ft m and the record crest at that point along the Musselshell is 17.7 ft m, set in 1993.ahps The flooding was caused by up to 8 in mm of rain combined with snowmelt.cbs thumb|right|Banks of the Musselshell River near Selkirk. On May 24 at Shawmut, near Harlowton, a record pace was set, with a flow rate of 3670 cuft/s m3/s. The average flow is 183 cuft/s m3/s on at that spot for May 24. The prior record at Shawmut was set in 2005 with a rate of 802 cuft/s m3/s on. Several roads in the Musselshell watershed were already closed by this date.bg1 The town of Roundup suffered the most damage of any community along the Musselshell. Potable water, food, and medicine were major concerns.ktvq Flood waters along the Musselshell near Roundup were as much as 6 ft m deep,cbs cresting over the weekend.msnbc Flooding near Roundup was at least 2 ft m above record flood level and forced the evacuation of dozens of homes. On Thursday, May 26 the flooding inundated portions of Roundup,msnbc At Highway 87 the floodwaters were flowing at over 3670 cuft/s m3/s on, more than 10 times the normal rate. On May 26 the Musselshell crested near Roundup at 14.16 ft m. Its flood stage there is 10 ft m. The previous record for that location was set in 1975 at 12.89 ft m.bg2 In Petroleum County alone damage costs were estimated at US$1.5 million.ktvq thumb|right|Hydrograph of observed and predicted river levels for the Musselshell River at Mosby on June 25, 2011. By June 23, the Musselshell had receded back below its banks, FEMA had assessed damage to public lands and was back in Roundup to assess damage to private lands and properties.kulr Flooding on the unconnected Yellowstone River to the south prompted the closing of a 20 mi km portion of Interstate 90 from Livingston to Springdale.msnbc Floodwaters from the tributary Pryor creek led to closing of Pompeys Pillar National Monument.msnbc The Little Bighorn River and related tributaries flooded the area around Crow Agency and shut down Interstate 90 from Hardin to the Wyoming line for several days.gazette522 Montana counties that were affected by the state-wide flooding in Spring 2011 include: Big Horn, Carbon, Garfield, Granite, Jefferson, Judith Basin, Missoula, Musselshell, Petroleum, Sanders, Wheatland, and Yellowstone. A state of emergency was declared in 51 Montana counties, cities, and Indian reservations.cbs Flood waters from the Musselshell, Yellowstone, and several other Montana rivers flow into the Missouri River and Mississippi River, exacerbating the 2011 flooding in states such as North Dakota and South Dakota.cbs See also 2011 Mississippi River floods 2011 Missouri River Flood References http://www.cbsnews.com/stories/2011/05/28/ap/business/main20067108.shtml Flooded Montana towns prepare for more water CBS News May 28, 2011 June 26, 2011 dead https://web.archive.org/web/20110530011701/http://www.cbsnews.com/stories/2011/05/28/ap/business/main20067108.shtml May 30, 2011 Midura Kyle http://www.kulr8.com/news/local/Feds-Inspect-Roundup-for-Private-Flood-Assistance-124464349.html FEMA Back To Inspect Flood Damage KULR News June 23, 2011 June 26, 2011 Douglas Angela http://www.ktvq.com/news/the-latest-from-roundup-and-other-communities-along-the-musselshell-river/ The latest from Roundup and other communities along the Musselshell River KTVQ News May 27, 2011 June 26, 2011 https://web.archive.org/web/20110531151907/http://www.ktvq.com/news/the-latest-from-roundup-and-other-communities-along-the-musselshell-river/ May 31, 2011 dead mdy-all https://www.nbcnews.com/id/wbna43184816 Montana flooding swamps towns, reservation NBC News May 26, 2011 June 26, 2011 Thackeray Lorna Musselshell River flooding in central Montana http://missoulian.com/news/state-and-regional/article_63b80a32-8676-11e0-ab0e-001cc4c03286.html June 26, 2011 The Missoulian via Billings Gazette May 24, 2011 Thackeray Lorna Musselshell River forces evacuations at Roundup http://billingsgazette.com/news/state-and-regional/montana/article_cd1e1a7a-62d4-5a7e-9a95-bde43acfdc94.html June 26, 2011 Billings Gazette May 26, 2011 Zach Benoit http://water.weather.gov/ahps2/hydrograph.php?wfo=ggw&gage=msbm8 Musselshell River Near Mosby NOAA, Advanced Hydrologic Prediction Service June 25, 2011 June 26, 2011 Thackeray Lorna Heavy rain floods towns, shuts down I-90 http://billingsgazette.com/news/state-and-regional/montana/article_48216a99-6fc1-5075-a3f3-b4ed976fe316.html June 26, 2011 Billings Gazette May 22, 2011 External links Current and historic crest levels of the Musselshell MT USGS station Timeline of Musselshell history Musselshell Category:Natural disasters in Montana Musselshell River flood Musselshell River flood