2012–13 South-West Indian Ocean cyclone season

Cyclone season in the Southwest Indian Ocean SWI 2013 2012-2013 South-West Indian Ocean cyclone season summary.png October 12, 2012 May 11, 2013 Felleng 935 90 Anais 945 100 10 11 10 10 7 3 35 total ~ 46 2010–11, 2011–12, 2012–13, 2013–14, 2014–15 2012–13 Australian region cyclone season 2012–13 South Pacific cyclone season The 2012–13 South-West Indian Ocean cyclone season was a slightly above average event in tropical cyclone formation in the Southern hemisphere tropical cyclone year starting on July 1, 2012, and ending on June 30, 2013.Tropical Cyclone Operational Plan: 2012 http://www.wmo.int/pages/prog/www/tcp/documents/TCP-12-WMO-TD-577-rev-2012_121495_en.pdf World Meteorological Organisation December 5, 2012 The RA I Tropical Cyclone Committee https://web.archive.org/web/20130512012241/http://www.wmo.int/pages/prog/www/tcp/documents/TCP-12-WMO-TD-577-rev-2012_121495_en.pdf May 12, 2013 11 2012 live Within this basin, tropical and subtropical disturbances are officially monitored by the Regional Specialised Meteorological Centre on Réunion island, while the Mauritius and Madagascar weather services assign names to significant tropical and subtropical disturbances. The first tropical disturbance of the season developed on October 12 and rapidly developed into the earliest known intense tropical cyclone on record during October 14. __TOC__ Seasonal summary The first tropical disturbance of the season developed on October 12 and gradually intensified to become the earliest known intense tropical cyclone on record on October 14.RSMC La Réunion http://weather.noaa.gov/pub/data/raw/wt/wtio30.fmee..txt RSMC La Réunion Technical Bulletin October 14, 2012 1200 UTC October 14, 2012 Météo France October 14, 2012 https://web.archive.org/web/20120923032410/http://weather.noaa.gov/pub/data/raw/wt/wtio30.fmee..txt September 23, 2012 live Systems Intense Tropical Cyclone Anais SWI Anais Oct 14 2012.jpg Anais 2012 path.png October 12 October 19 100 115 945 On October 12, 2012, the JTWC issued a Tropical Cyclone Formation Alert (TCFA) on a system near the Chagos Islands.http://weather.noaa.gov/pub/data/raw/wt/wtxs21.pgtw..txt JTWC Tropical Cyclone Formation Alert on October 12, 2012 12 October 2012 Joint Typhoon Warning Center 13 October 2012 https://web.archive.org/web/20131006083033/http://weather.noaa.gov/pub/data/raw/wt/wtxs21.pgtw..txt 6 October 2013 dead Soon afterwards, RSMC La Réunion designated the system as a tropical disturbance while located roughly 70 nmi km 5 to the west of Diego Garcia.Tropical Disturbance 01 Forecast Warning 001 http://gwydir.demon.co.uk/advisories/WTIO30-FMEE_201210120629.htm Météo France 12 October 2012 12 October 2012 https://archive.today/20121012153158/http://gwydir.demon.co.uk/advisories/WTIO30-FMEE_201210120629.htm 12 October 2012 dead That afternoon, the JTWC upgraded the system into a tropical depression, giving it the designation 01S.http://gwydir.demon.co.uk/advisories/WTXS31-PGTW_201210121500.htm Tropical Cyclone 01S (Anais) JTWC Warning 001 12 October 2012 Joint Typhoon Warning Center 13 October 2012 https://archive.today/20121012153300/http://gwydir.demon.co.uk/advisories/WTXS31-PGTW_201210121500.htm 12 October 2012 dead The next day, RSMC La Réunion reported that the system had intensified into a moderate tropical storm and named it Anais.Moderate Tropical Storm Anais Forecast Warning 005 http://gwydir.demon.co.uk/advisories/WTIO20-FMEE_201210130639.htm Météo France 13 October 2012 13 October 2012 https://archive.today/20121013071130/http://gwydir.demon.co.uk/advisories/WTIO20-FMEE_201210130639.htm 2012-10-13 dead As the day progressed, Anais began a period of quick intensification—being upgraded into a tropical cyclone by RSMC La Réunion and a category one tropical cyclone by the JTWC.http://weather.noaa.gov/pub/data/raw/wt/wtio30.fmee..txt Tropical Cyclone Anais Forecast Warning 007 13 October 2012 Météo France 13 October 2012 https://web.archive.org/web/20120923032410/http://weather.noaa.gov/pub/data/raw/wt/wtio30.fmee..txt 23 September 2012 live http://www.usno.navy.mil/NOOC/nmfc-ph/RSS/jtwc/warnings/sh0113web.txt Tropical Cyclone 01S (Anais) JTWC Warning 003 13 October 2012 Joint Typhoon Warning Center 13 October 2012 https://web.archive.org/web/20121016170551/http://www.usno.navy.mil/NOOC/nmfc-ph/RSS/jtwc/warnings/sh0113web.txt 16 October 2012 dead Anais continued to gradually intensify and was upgraded into an intense tropical cyclone by RSMC La Réunion early on October 14, while it was upgraded to a category 3 cyclone by the JTWC, as it started to form a well defined eye. December 2012 Late on October 15, as it started to weaken, the system's eye started to collapse, but deep convection remained over the low level circulation center, and it was downgraded to a category 1 cyclone by October 16.http://gwydir.demon.co.uk/advisories/WTXS31-PGTW_201210160300.htm Tropical Cyclone 01S (Anais) Warning NR 008 Joint Typhoon Warning Center 16 October 2012 29 December 2012 https://archive.today/20121016071754/http://gwydir.demon.co.uk/advisories/WTXS31-PGTW_201210160300.htm 2012-10-16 dead On October 17, the system weakened into a tropical storm, and the low-level circulation center became totally exposed, with convection being displaced to the south due to moderate vertical wind shear from the north west.http://gwydir.demon.co.uk/advisories/WTXS31-PGTW_201210170300.htm Tropical Cyclone 01S (Anais) Warning NR 010 Joint Typhoon Warning Center 17 October 2012 29 December 2012 https://archive.today/20121017072324/http://gwydir.demon.co.uk/advisories/WTXS31-PGTW_201210170300.htm 2012-10-17 dead As the day progressed, Anais weakened into a tropical depression.http://gwydir.demon.co.uk/advisories/WTMA20-FIMP_201210171900.htm Warning of Near Gale Joint Typhoon Warning Center 17 October 2012 29 December 2012 https://archive.today/20121018133230/http://gwydir.demon.co.uk/advisories/WTMA20-FIMP_201210171900.htm 2012-10-18 dead On October 19, the remnants of Anais made landfall over Madagascar associated with a few burst of thunderstorms, before dissipating completely. December 2012 On October 14, Anais became the earliest intense tropical cyclone in the South-West Indian Ocean. Tropical Disturbance 02 SWI Tropical Disturbance 2 Nov 15 2012.jpg 02R 2012 track.png November 15 November 16 25 1004 On November 8, an area of low pressure formed far northeast of La Réunion. It gradually drifted west and developed a low-level circulation center (LLCC).JTWC Tropical Cyclone Outlook, 1800 UTC 8 November 2012 http://weather.noaa.gov/pub/data/raw/ab/abio10.pgtw..txt Joint Typhoon Warning Center 15 November 2012 https://web.archive.org/web/20120126065950/http://weather.noaa.gov/pub/data/raw/ab/abio10.pgtw..txt 26 January 2012 dead On the next day, isolated convection developed around the system with fragmented spiral banding.JTWC Tropical Cyclone Outlook, 1800 UTC 9 November 2012 http://weather.noaa.gov/pub/data/raw/ab/abio10.pgtw..txt Joint Typhoon Warning Center 15 November 2012 https://web.archive.org/web/20120126065950/http://weather.noaa.gov/pub/data/raw/ab/abio10.pgtw..txt 26 January 2012 dead The low drifted southwest and slightly weakened on November 12. The low-pressure area soon became disorganized and the JTWC stopped tracking it later that day.JTWC Tropical Cyclone Outlook, 0630 UTC 12 November 2012 http://gwydir.demon.co.uk/advisories/ABIO10-PGTW_201211120630.htm Joint Typhoon Warning Center 15 November 2012 https://archive.today/20121115081531/http://gwydir.demon.co.uk/advisories/ABIO10-PGTW_201211120630.htm 2012-11-15 dead Early on November 15, the disturbance regained strength and the convective banding around its LLCC improved and JTWC resumed tracking the system.JTWC Tropical Cyclone Outlook, 0430 UTC 15 November 2012 http://weather.noaa.gov/pub/data/raw/ab/abio10.pgtw..txt Joint Typhoon Warning Center 15 November 2012 https://web.archive.org/web/20120126065950/http://weather.noaa.gov/pub/data/raw/ab/abio10.pgtw..txt 26 January 2012 dead At the same time, RSMC La Réunion upgraded the low-pressure area to a tropical disturbance.Tropical Cyclone Warning 001 for Tropical Disturbance 02 http://gwydir.demon.co.uk/advisories/WTIO20-FMEE_201211150629.htm Météo France 15 November 2012 https://archive.today/20121115122341/http://gwydir.demon.co.uk/advisories/WTIO20-FMEE_201211150629.htm 2012-11-15 dead The next day, the system lost most of its convection and Météo France stopped tracking the disturbance, reporting that their forecast models showed no chance of the system restrengthening.Tropical Cyclone Forecast Warning 003 for Tropical Disturbance 02 http://weather.noaa.gov/pub/data/raw/wt/wtio30.fmee..txt Météo France 16 November 2012 https://web.archive.org/web/20120923032410/http://weather.noaa.gov/pub/data/raw/wt/wtio30.fmee..txt 23 September 2012 live Severe Tropical Storm Boldwin SWI Boldwin Nov 24 2012 0845Z.jpg Boldwin 2012 path.png November 23 November 26 57 55 985 On November 13, a cluster of thunderstorms formed off Western Sumatra. Over the next couple of days, the cluster developed a circulation center, and became a tropical disturbance, being dubbed Invest 96S by the JTWC. Over the next couple of days, unfavorable conditions haltered the development of the system. December 2012 On November 23, the system organized under moderate vertical wind shear, and the Météo-France started to track the system as a tropical disturbancePerturbation Tropicale 03-20122013 from RSMC 2012-10-23, 1800z http://gwydir.demon.co.uk/advisories/WTIO20-FMEE_201211231807.htm Météo-France 24 November 2012 https://archive.today/20121124071555/http://gwydir.demon.co.uk/advisories/WTIO20-FMEE_201211231807.htm 2012-11-24 dead By midnight, that day, Météo-France further upgraded the system to a tropical depression.Depression Tropicale 03-20122013 http://gwydir.demon.co.uk/advisories/WTIO20-FMEE_201211240015.htm Météo-France 24 November 2012 https://archive.today/20121124071554/http://gwydir.demon.co.uk/advisories/WTIO20-FMEE_201211240015.htm 2012-11-24 dead In the early hours of November 24, RSMC La Réunion further upgraded the tropical depression into a Moderate Tropical Storm with Mauritius assigning it the name Boldwin.Moderate Tropical Storm Boldwin from Mauritius http://weather.noaa.gov/pub/data/raw/wt/wtio20.fmee..txt RSMC La Réunion 24 November 2012 Mauritius Meteorological Service https://archive.today/20240522124515/https://www.webcitation.org/6CPNI2Z57?url=http://gwydir.demon.co.uk/advisories/WTIO20-FMEE_201211240622.htm 22 May 2024 live Later the same day, the JTWC also started tracking the system as Tropical Cyclone 02S with winds equivalent to a tropical storm on the SSHS, while it developed an eye-like feature.http://weather.noaa.gov/pub/data/raw/wt/wtxs31.pgtw..txt JTWC – Tropical Cyclone Warning 001 – Tropical Storm Boldwin https://web.archive.org/web/20120920183341/http://weather.noaa.gov/pub/data/raw/wt/wtxs31.pgtw..txt United States Navy 24 November 2012 Joint Typhoon Warning Center 20 September 2012 dead During the afternoon, Météo-France further upgraded Boldwin into a Severe Tropical Storm with 10-minute sustained winds reaching 100 km/h mph on 5.RSMC La Réunion Cyclone Warning 004 – Severe Tropical Storm Boldwin http://gwydir.demon.co.uk/advisories/WTIO20-FMEE_201211241227.htm RSMC La Réunion 24 November 2012 https://archive.today/20121124161448/http://gwydir.demon.co.uk/advisories/WTIO20-FMEE_201211241227.htm 2012-11-24 dead On November 25, the storm encountered strong vertical wind shear and much of its convection got displaced to the southeast, partially exposing the center.JTWC – Tropical Cyclone Warning 003 – Tropical Storm Boldwin http://weather.noaa.gov/pub/data/raw/wt/wtxs31.pgtw..txt National Oceanic and Atmospheric Administration 25 November 2012 Joint Typhoon Warning Center United States Navy https://web.archive.org/web/20120920183341/http://weather.noaa.gov/pub/data/raw/wt/wtxs31.pgtw..txt 20 September 2012 dead That day, Boldwin weakened into a Moderate Tropical Storm.RSMC La Réunion Cyclone Warning 008 – Severe Tropical Storm Boldwin http://gwydir.demon.co.uk/advisories/WTIO20-FMEE_201211251226.htm RSMC La Réunion 26 November 2012 https://archive.today/20121126080737/http://gwydir.demon.co.uk/advisories/WTIO20-FMEE_201211251226.htm 2012-11-26 dead Later that night, Boldwin's LLCC became fully exposed and started weakening rapidly. As a result, the JTWC issued their final advisory on the system.JTWC – Tropical Cyclone Warning 004 – Tropical Storm Boldwin http://gwydir.demon.co.uk/advisories/WTXS31-PGTW_201211252100.htm Joint Typhoon Warning Center 26 November 2012 https://archive.today/20121126080929/http://gwydir.demon.co.uk/advisories/WTXS31-PGTW_201211252100.htm 2012-11-26 dead At the same time, Météo-France reported that Boldwin further weakened into a Tropical Depression.Météo-France – RSMC La Réunion Cyclone Warning 009 – Severe Tropical Storm Boldwin http://gwydir.demon.co.uk/advisories/WTIO20-FMEE_201211251836.htm Météo-France 26 November 2012 https://archive.today/20121126080736/http://gwydir.demon.co.uk/advisories/WTIO20-FMEE_201211251836.htm 2012-11-26 dead Finally, during the early hours of November 26, Météo-France issued their final warning on Boldwin, as it weakened into a remnant low, as moderate vertical wind shear had torn the system apart.Météo-France – RSMC La Réunion Cyclone Warning 010 – Severe Tropical Storm Boldwin http://gwydir.demon.co.uk/advisories/WTIO20-FMEE_201211260005.htm Météo-France 26 November 2012 https://archive.today/20121126080735/http://gwydir.demon.co.uk/advisories/WTIO20-FMEE_201211260005.htm 2012-11-26 dead Intense Tropical Cyclone Claudia SWI Claudia Dec 10 2012 0845Z.jpg Claudia 2012 path.png December 6 December 13 95 115 940 On 29 November the NRL began monitoring a disturbance initially located in the Australian area of responsibility. December 2012 The disturbance moved south-westwards over the following week, strengthening as wind shear decreased.https://archive.today/20240522124437/https://www.webcitation.org/6Ca4n3DTr?url=http://gwydir.demon.co.uk/advisories/ABIO10-PGTW_201211301800.htm http://weather.noaa.gov/pub/data/raw/ab/abio10.pgtw..txt Significant Tropical Weather Advisory for the Indian Ocean November 30, 2012 18z Joint Typhoon Warning Centre May 22, 2024 December 6, 2012 live https://web.archive.org/web/20120126065950/http://weather.noaa.gov/pub/data/raw/ab/abio10.pgtw..txt http://weather.noaa.gov/pub/data/raw/ab/abio10.pgtw..txt Significant Tropical Weather Advisory for the Indian Ocean December 5, 2012 06z Joint Typhoon Warning Centre January 26, 2012 December 6, 2012 dead On 6 December, JTWC issued a TCFAhttps://web.archive.org/web/20131006083033/http://weather.noaa.gov/pub/data/raw/wt/wtxs21.pgtw..txt http://weather.noaa.gov/pub/data/raw/wt/wtxs21.pgtw..txt Tropical Cyclone Formation Alert October 6, 2013 December 6, 2012 Joint Typhoon Warning Center dead and RSMC La Réunion commenced advisories for a Tropical Disturbance.https://web.archive.org/web/20120923032410/http://weather.noaa.gov/pub/data/raw/wt/wtio30.fmee..txt http://weather.noaa.gov/pub/data/raw/wt/wtio30.fmee..txt Tropical Cyclone Forecast Warning 01 September 23, 2012 December 6, 2012 RSMC La Réunion live The disturbance was then located about 900 km (550 miles) SE of Diego Garcia. The next day it was named Moderate Tropical Storm Claudia by NWS Mauritius.https://web.archive.org/web/20100808024604/http://weather.noaa.gov/pub/data/raw/wt/wtma20.fimp..txt http://weather.noaa.gov/pub/data/raw/wt/wtma20.fimp..txt New Moderate Tropical Storm named Claudia August 8, 2010 December 7, 2012 dead NWS Mauritius On December 8, Cyclone Claudia was in South Indian Ocean and had strengthened rapidly with winds over 160 km/h mph on 5.Cyclone Claudia in South Indian Ocean strengthens rapidly with winds now over 100 mph; still no threat to land – @metofficestorms http://www.onenewspage.co.uk/n/World/74rkhuw9l/Cyclone-Claudia-in-South-Indian-Ocean-strengthens-rapidly.htm https://archive.today/20130421021208/http://www.onenewspage.co.uk/n/World/74rkhuw9l/Cyclone-Claudia-in-South-Indian-Ocean-strengthens-rapidly.htm dead April 21, 2013 One News Page 8 December 2012 On December 10, a well-developed eye was observed, with diameter of approximately 19 km (12 mi). By December 11, Claudia's eye had dissipated, and the cyclone became more disorganized, with wind shear causing elongation from east to west. Claudia moved into sea surface temperatures below 80 F C on, as a result of the western edge of a high pressure ridge steering the system south. On December 12, high vertical wind shear near 30 knots (55.5 km/h; 34.5 mph) impacted the northwestern quadrant of the low level circulation center, exposing the center, as it became extratropical over cooler waters. On December 13, the system became fully extratropical, with the low level circulation center becoming fully exposed, and convection displaced far south of the circulation center by strong vertical wind shear.http://www.nasa.gov/mission_pages/hurricanes/archives/2012/h2012_Claudia.html NASA Hurricanes/Tropical Cyclones: Latest Storm Images and Data from NASA Tropical Cyclone Claudia (Southern Indian Ocean) 10 December 2012 12 December 2012 Tropical Cyclone Dumile SWI Dumile Jan 3 2013 0650Z.jpg Dumile 2012 path.png December 29 January 5 70 75 970 On December 28 a low-pressure area continued to organize, with a significant increase in convection, located just to the west of an anticyclone.http://gwydir.demon.co.uk/advisories/ABIO10-PGTW_201212281800.htm Significant Tropical Weather Advisory for the Indian Ocean Joint Typhoon Warning Center 28 December 2012 29 December 2012 https://archive.today/20121229132924/http://gwydir.demon.co.uk/advisories/ABIO10-PGTW_201212281800.htm 2012-12-29 dead In Mauritius, the storm produced winds up to 108 km/h mph on that downed trees and power lines. Transportation across the region was several disrupted as public transit was shut down and many roads were blocked by debris. In Cassis, a billboard collapsed and damaged a nearby home. One person was found dead after his body washed ashore in Flic-en-Flac. In addition to winds, the storm brought heavy rains to the region, amounting to 192.8 mm in on in Arnaud.Le Mauricien January 4, 2013 February 14, 2013 Dumile: Plus de pluies que de dégâts http://www.lemauricien.com/article/dumile-plus-pluies-degats fr Overall, damage from the storm was fairly limited in Mauritius.Xinhua Afriquinfos January 3, 2013 February 14, 2013 Le cyclone Dumile perturbe la reprise des activités économiques à Maurice http://www.afriquinfos.com/articles/2013/1/3/cyclone-dumile-perturbe-reprise-activites-economiques-maurice-215456.asp fr https://web.archive.org/web/20130109094336/http://www.afriquinfos.com/articles/2013/1/3/cyclone-dumile-perturbe-reprise-activites-economiques-maurice-215456.asp 2013-01-09 dead Cyclone Dumile produced strong winds across Réunion Island, peaking at 180 km/h mph on, that downed numerous trees and power lines, leaving approximately 125,000 residents without electricity. Downed wires also led to the death of one person after he tried to remove a live wire from the roof of his home. Additionally 14 people were injured by the storm.Diane Heurtaut TFI News January 4, 2013 February 14, 2013 Cyclone Dumile à La Réunion : le bilan s'alourdit http://lci.tf1.fr/france/faits-divers/cyclone-dumile-a-la-reunion-le-bilan-s-alourdit-7752236.html fr https://web.archive.org/web/20130208061924/http://lci.tf1.fr/france/faits-divers/cyclone-dumile-a-la-reunion-le-bilan-s-alourdit-7752236.html 2013-02-08 dead Heavy rains also affected much of the island, with 834 mm in on falling in Cirad over a 24‑hour span.Meteo-Paris January 3, 2013 February 14, 2013 Cyclone Dumile : La Réunion en alerte rouge http://www.meteo-paris.com/actualites/cyclone-dumile-la-reunion-en-alerte-rouge-03-janvier-2013.html fr https://web.archive.org/web/20130118080116/http://www.meteo-paris.com/actualites/cyclone-dumile-la-reunion-en-alerte-rouge-03-janvier-2013.html 2013-01-18 dead These rains proved to be mostly beneficial, restoring reservoirs and replenishing rivers, as the island experienced below-average rainfall in the preceding two months.fr Clicanoo January 29, 2013 February 14, 2013 Dumile, un cyclone bienfaiteur http://www.clicanoo.re/355663-dumile-un-cyclone-bienfaiteur.htmlAugust 2026 InternetArchiveBot Significant agricultural damage took place on the island, with losses reaching €31 million (US$41.3 million).Annecy Panon and Sarah Leveque Clicanoo January 25, 2013 February 14, 2013 Les dégâts de Dumile évalués à 31 millions d'euros http://www.clicanoo.re/355338-les-degats-de-dumile-evalues-a-31-millions-d-euros.html fr January 26, 2013 https://web.archive.org/web/20130126220355/http://www.clicanoo.re/355338-les-degats-de-dumile-evalues-a-31-millions-d-euros.html dead Insured losses were estimated at €3.5 million (US$4.7 million).Clicanoo January 2013 February 14, 2013 Dumile : pour les assureurs, la facture s'élève à 3,5 millions d'euros http://www.clicanoo.re/353998-dumile-pour-les-assureurs-la-facture-s-eleve-a-3-5-millions-d-euros.html frFebruary 2022 InternetArchiveBot yes Moderate Tropical Storm Emang SWI Emang January 13 2013.jpg Emang 2013 path.png January 12 January 17 35 35 994 On December 27 a cluster of thunderstorms developed into a weak low-pressure area. January 2013 By December 28, the JTWC began tracking the system, as it began to make a significant increase in deep convection, with formative convective banding developing around the system. At that time, the disturbance was located west of an upper-level anticyclone and directly beneath a subtropical ridge center, in an area of light vertical wind shear, 805 km mi on north-northwest of Learmonth, Australia.SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN OCEAN https://www.webcitation.org/6DH0aOCmy?url=http://gwydir.demon.co.uk/advisories/ABIO10-PGTW_201212281030.htm 2025-09-15 www.webcitation.org On December 30, the low-level circulation center became partially exposed due to moderate to strong easterly moving vertical wind shear, while the western part of the system still had deep, persistent convection.SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN OCEAN https://www.webcitation.org/6DLx1ZqTk?url=http://gwydir.demon.co.uk/advisories/ABIO10-PGTW_201212301800.htm 2025-09-15 www.webcitation.org By January 17, Emang became disorganized and weakened into a small area of flaring convection. The low-level circulation center had become weak and poorly defined, due to moderate vertical wind shear.SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN OCEAN http://weather.noaa.gov/pub/data/raw/ab/abio10.pgtw..txt dead https://web.archive.org/web/20160803051244/http://weather.noaa.gov/pub/data/raw/ab/abio10.pgtw..txt 2016-08-03 2013-01-18 Intense Tropical Cyclone Felleng SWI Felleng Jan 30 2013 0630Z.jpg Felleng 2013 path.png January 26 February 3 90 115 935 Cyclone Felleng On January 18, an elongated, poorly organized area of convection associated with the remnants of Tropical Storm Emang lingered near the ITCZ. By January 24, RSMC La Réunion reported a totally exposed vortex with occasional burst of convection persisted about 470 miles km 5 NNE of Rodrigues, and 580 miles km 5 SW of Diego Garcia. At that time it was not expected to strengthen,http://gwydir.demon.co.uk/advisories/AWIO20-FMEE_201301241000.pdf https://www.webcitation.org/6DxH8IA4f?url=http://gwydir.demon.co.uk/advisories/AWIO20-FMEE_201301241000.pdf Bulletin for Cyclonic Activity 2013-01-26 January 26, 2013 RSMC La Réunion dead but early on 26 January, convective activity improved, with deep convection and redeveloped a well defined, partially exposed low level circulation center due to moderate vertical wind shear from the East, and was designated as a Tropical Depression.SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE INDIAN OCEAN https://www.webcitation.org/6DxGvEy81?url=http://gwydir.demon.co.uk/advisories/ABIO10-PGTW_201301251800.htm 2025-09-15 www.webcitation.orghttp://gwydir.demon.co.uk/advisories/WTIO30-FMEE_201301260648.htm https://archive.today/20130126081753/http://gwydir.demon.co.uk/advisories/WTIO30-FMEE_201301260648.htm Tropical Cyclone Forecast Warning 01 2013-01-26 January 26, 2013 RSMC La Réunion dead It continued to strengthen as it moved west, then south-west as it steadily intensified, reaching Intense Tropical Cyclone strength on 30 January while developing a well defined eye, with a deep, intense ring of convective banding forming in the eyewall.http://gwydir.demon.co.uk/advisories/WTIO30-FMEE_201301300649.htm https://archive.today/20130130081646/http://gwydir.demon.co.uk/advisories/WTIO30-FMEE_201301300649.htm Tropical Cyclone Forecast Warning 17 2013-01-30 February 2, 2013 RSMC La Réunion dead On January 31 the eye became less well defined, and started to collapse.http://gwydir.demon.co.uk/advisories/WTIO30-FMEE_201301301239.htm Archived copy 2013-01-31 2024-05-22 https://archive.today/20240522004546/https://www.webcitation.org/6E5IPA5zn?url=http://gwydir.demon.co.uk/advisories/WTIO30-FMEE_201301301239.htm dead On February 1 the system started to become elongated, and weakened into a severe tropical storm as it began its extratropical transition.http://gwydir.demon.co.uk/advisories/WTIO30-FMEE_201302020044.htm Archived copy 2013-02-02 2024-05-22 https://archive.today/20240522004624/https://www.webcitation.org/6E7wIUYNc?url=http://gwydir.demon.co.uk/advisories/WTIO30-FMEE_201302020044.htm dead By February 3, Felleng became fully extratropical, with the low level circulation center becoming totally exposed and elongated, under vertical wind shear, located to the west of the remnant convection.http://gwydir.demon.co.uk/advisories/WTIO22-FMEE_201302031216.htm Archived copy 2013-02-04 2024-05-22 https://archive.today/20240522004704/https://www.webcitation.org/6EAwtZTlK?url=http://gwydir.demon.co.uk/advisories/WTIO22-FMEE_201302031216.htm dead Although the center of Cyclone Felleng remained offshore, heavy rain from the storm's outer bands triggered significant flooding in parts of Madagascar. Flood waters rose rapidly in the capital Antananarivo, flooding many low-lying homes, as well as several hundred hectares of rice fields. Government authorities confirmed at least 800 people have been affected by the floods in the capital alone.http://www.globalpost.com/dispatch/news/afp/130202/six-killed-three-missing-madagascar-cyclone Six killed, three missing in Madagascar cyclone GlobalPost 19 November 2015Madagascar – Felleng fait six morts et trois disparus (Lexpress.mu) Across the island, 9 people were killed and 1,303 were left homeless. A total of 162 homes were destroyed while another 1,803 were damaged by flood waters, most of which were in Vatovavy-Fitovinany.Vonjy Radasimalala L'Express de Madagascar February 5, 2013 February 14, 2013 Cyclone Felleng: Neuf décès et des milliers de sinistrés http://www.lexpressmada.com/5442/cyclone-felleng-madagascar/40696-neuf-deces-et-des-milliers-de-sinistres.html fr https://web.archive.org/web/20141029220819/http://www.lexpressmada.com/5442/cyclone-felleng-madagascar/40696-neuf-deces-et-des-milliers-de-sinistres.html 2014-10-29 dead Heavy rains and winds associated with the storm also impacted Réunion Island, where 11,200 homes were left without power.La P'tite Gazette de La Réunion February 2, 2013 February 14, 2013 Cyclone Felleng : Bilan, situation, photos et vidéos cycloniques ! http://www.la-ptite-gazette.com/2013/02/cyclone-felleng-bilan-situation-photos-et-videos-cycloniques/ fr February 4, 2013 https://web.archive.org/web/20130204202935/http://www.la-ptite-gazette.com/2013/02/cyclone-felleng-bilan-situation-photos-et-videos-cycloniques/ dead Over the course of three days, up to 800 mm in on of rain fell in parts of the island, resulting in significant flooding. In Plaine des Cafres, 512 mm in on fell during a 24‑hour span.Cilanoos February 2, 2013 February 14, 2013 Felleng : 800 mm en 72 heures au Commerson http://www.clicanoo.re/356252-felleng-800-mm-en-72-heures-au-commerson.html fr February 11, 2013 https://web.archive.org/web/20130211054231/http://www.clicanoo.re/356252-felleng-800-mm-en-72-heures-au-commerson.html dead Tropical Cyclone Gino SWI Gino Feb 13 2013 0505Z.jpg Gino 2013 path.png February 11 February 15 75 90 953 On 11 February, RSMC La Réunion announced that a Tropical Depression had formed about 760 mi km on 5 ESE of Diego Garcia.http://gwydir.demon.co.uk/advisories/WTIO30-FMEE_201302110655.htm https://archive.today/20130211080033/http://gwydir.demon.co.uk/advisories/WTIO30-FMEE_201302110655.htm Tropical Cyclone Forecast Warning 01 2013-02-11 February 11, 2013 RSMC La Réunion dead The disturbance had first been noticed several days earlier as a Tropical Low in the Australian AoR.http://gwydir.demon.co.uk/advisories/IDW10800_201302060224.htm https://archive.today/20130207202628/http://gwydir.demon.co.uk/advisories/IDW10800_201302060224.htm Tropical Cyclone Three Day Outlook for the Western Region, Feb. 6 2013 2013-02-07 February 11, 2013 BoM Perth dead It was soon upgraded and named Moderate Tropical Storm Gino.http://weather.noaa.gov/pub/data/raw/wt/wtio30.fmee..txt https://web.archive.org/web/20120923032410/http://weather.noaa.gov/pub/data/raw/wt/wtio30.fmee..txt Tropical Cyclone Forecast Warning 02 September 23, 2012 February 11, 2013 RSMC La Réunion live On 12 February at 1500 UTC, the storm's maximum sustained winds was 75 kn m/s km/h mphmaking the storm the equivalent of a category one hurricane. At that time, Gino was centered near 17.1 south latitude and 79.5 east longitude, about 700 nmi km mi southeast of Diego Garcia. Gino moved south-southwest at 10 kn m/s km/h mph, around the northwestern edge of a subtropical ridge of high pressure. Tropical Cyclone Haruna SWI Haruna Feb 21 2013 0735Z.jpg Haruna 2013 path.png February 18 February 24 80 105 960 Cyclone Haruna In the middle of February, an area of convection persisted in the Mozambique Channel. The system shifted southward after exiting the coast of Mozambique and slowed to a drift in response to a break in the subtropical ridge. Subsequently, convection became more pronounced and Météo France classified the system as a tropical disturbance on February 18.RSMC La Réunion Météo France February 18, 2013 February 24, 2013 Tropical Disturbance 9 Tropical Cyclone Forecast Warning http://gwydir.demon.co.uk/advisories/WTIO30-FMEE_201302181248.htm Report https://archive.today/20130219082123/http://gwydir.demon.co.uk/advisories/WTIO30-FMEE_201302181248.htm February 19, 2013 dead On February 19, the system attained gale-force winds and was upgraded to Moderate Tropical Storm Haruna.RSMC La Réunion Météo France February 19, 2013 February 24, 2013 Moderate Tropical Storm Haruna Tropical Cyclone Forecast Warning http://gwydir.demon.co.uk/advisories/WTIO30-FMEE_201302190641.htm Report https://archive.today/20130219082120/http://gwydir.demon.co.uk/advisories/WTIO30-FMEE_201302190641.htm February 19, 2013 dead The structure of Haruna continued to become more symmetrical with a large radius of maximum winds, developing a ragged eye early on February 20. Based on the improved appearance, MFR upgraded Haruna to a severe tropical storm at 0000 UTC that day.Météo-France 2013-02-20 Severe Tropical Storm 09 (Haruna) Warning Number 07 2013-07-07 http://gwydir.demon.co.uk/advisories/WTIO30-FMEE_201302200030.htm dead https://archive.today/20240522020809/https://www.webcitation.org/6EZHzhQxE?url=http://gwydir.demon.co.uk/advisories/WTIO30-FMEE_201302200030.htm May 22, 2024 About 12 hours later, the agency upgraded Haruna further to tropical cyclone status, with 10 minute winds of 120 km/h mph on 5.Météo-France 2013-02-20 Tropical Cyclone 09 (Haruna) Warning Number 09 2013-07-07 http://gwydir.demon.co.uk/advisories/WTIO30-FMEE_201302201247.htm dead https://archive.today/20240522015527/https://www.webcitation.org/6Eb18tocJ?url=http://gwydir.demon.co.uk/advisories/WTIO30-FMEE_201302201247.htm May 22, 2024 That day, an approaching trough weakened the ridge to the south, causing the cyclone to slow and move erratically.Joint Typhoon Warning Center 2013-02-20 Tropical Cyclone 16S (Haruna) Warning NR 003 2013-07-08 http://gwydir.demon.co.uk/advisories/WTXS31-PGTW_201302200300.htm dead https://archive.today/20240522020853/https://www.webcitation.org/6EZI2AlfL?url=http://gwydir.demon.co.uk/advisories/WTXS31-PGTW_201302200300.htm May 22, 2024 MFR assessed that Haruna reached 10 minute winds of 150 km/h mph on 5 on February 20.Météo-France 2013-02-20 Tropical Cyclone 09 (Haruna) Warning Number 10 2013-07-09 http://gwydir.demon.co.uk/advisories/WTIO30-FMEE_201302201846.htm dead https://archive.today/20240522015447/https://www.webcitation.org/6Eb18owW9?url=http://gwydir.demon.co.uk/advisories/WTIO30-FMEE_201302201846.htm May 22, 2024 At around 0230 UTC on February 22, the cyclone made landfall about 55 km (35 mi) south of Morombe in southwestern Madagascar.Météo-France 2013-02-22 Tropical Cyclone 09 (Haruna) Warning Number 16 2013-07-09 http://gwydir.demon.co.uk/advisories/WTIO30-FMEE_201302220638.htm dead https://archive.today/20240522015725/https://www.webcitation.org/6EcQdYS3p?url=http://gwydir.demon.co.uk/advisories/WTIO30-FMEE_201302220638.htm May 22, 2024 Haruna quickly weakened below cyclone status, and while over land it accelerated to the southeast.Météo-France 2013-02-22 Moderate Tropical Storm 09 (Haruna) Warning Number 18 2013-07-09 http://gwydir.demon.co.uk/advisories/WTIO30-FMEE_201302221844.htm dead https://archive.today/20240522020128/https://www.webcitation.org/6EfRXtjy5?url=http://gwydir.demon.co.uk/advisories/WTIO30-FMEE_201302221844.htm May 22, 2024 At 1200 UTC on February 24, MFR issued its last advisory after Haruna began losing tropical characteristics, designating it as a subtropical depression.Météo-France 2013-02-24 Subtropical Depression 09 (ex-Haruna) Warning Number 25 2013-07-10 http://gwydir.demon.co.uk/advisories/WTIO30-FMEE_201302241243.htm dead https://archive.today/20240522020249/https://www.webcitation.org/6Eh42qfw1?url=http://gwydir.demon.co.uk/advisories/WTIO30-FMEE_201302241243.htm May 22, 2024 The next day, the JTWC also discontinued advisories on the storm, noting that Haruna was dissipating about 665 km (415 mi) south-southwest of Réunion.Joint Typhoon Warning Center 2013-02-25 Tropical Cyclone 16S (Haruna) Warning NR 013 2013-07-10 http://gwydir.demon.co.uk/advisories/WTXS31-PGTW_201302250300.htm dead https://archive.today/20240522020327/https://www.webcitation.org/6Eh468VQ5?url=http://gwydir.demon.co.uk/advisories/WTXS31-PGTW_201302250300.htm May 22, 2024 Striking the southwestern coast of Madagascar, Cyclone Haruna impacted areas that usually do not see tropical cyclones. The most significant damage took place north of Toliara around the Mikea Forest.Meteo Consult February 23, 2013 February 24, 2013 Le cyclone Haruna dévaste le sud de Madagascar http://actualite.meteoconsult.fr/actualite/meteo/le-cyclone-haruna-devaste-le-sud-de-madagascar_19950_2013-02-19.php fr The storm brought wind gusts estimated at 210 km/h mph on 5, resulting in extensive damage. Many homes lost their roofs and numerous roads were blocked by debris, isolating communities.Radio France Internationale February 23, 2013 February 24, 2013 Madagascar : le cyclone Haruna dévaste le sud de l'île http://www.rfi.fr/afrique/20130223-madagascar-oeil-cyclone fr Several days of heavy rain caused extensive flooding, especially in Morombe where approximately 70 percent of the city was destroyed due to flash flooding and dam collapses. In nearby Toliara, dozens of people were evacuated due to similarly dangerous flooding.Radio France Internationale February 24, 2013 February 24, 2013 Madagascar : le cyclone Haruna a fait au moins six morts et des milliers de sinistrés http://www.rfi.fr/afrique/20130224-madagascar-le-cyclone-haruna-fait-moins-six-morts-milliers-sinistres fr At least 24 people were killed across southern Madagascar and another 16 were listed as missing. In addition, at least 92 were injured and nearly 10,000 left homeless after the passage of Haruna.United Nations Office for the Coordination of Humanitarian Affairs ReliefWeb February 26, 2013 February 27, 2013 Tropical Cyclone Haruna Situation Report No. 3 http://reliefweb.int/sites/reliefweb.int/files/resources/Madagascar%20Sitrep%203_TC%20Haruna_26%20Feb%202013.pdf Tropical Cyclone Imelda SWI Imelda Apr 14 2013 0955Z.jpg Imelda 2013 path.png April 5 April 16 80 85 960 February 2017 On April 3, the Joint Typhoon Warning Center started tracking an area of weak, shallow convection located around a low-level circulation center (LLCC) near 8.5°S 75.6°E.Joint Typhoon Warning Center April 3, 2013 May 8, 2013 Tropical Weather Information for the Indian Ocean https://listserv.illinois.edu/wa.cgi?A2=ind1304a&L=wx-tropl&T=0&X=558D791777B97BA4EA&P=12852 Report https://archive.today/20131105173246/https://listserv.illinois.edu/wa.cgi?A2=ind1304a&L=wx-tropl&T=0&X=558D791777B97BA4EA&P=12852 November 5, 2013 dead By April 4, the system developed flaring convection around a consolidating, partially exposed LLCC.Joint Typhoon Warning Center April 4, 2013 May 8, 2013 Tropical Weather Information for the Indian Ocean https://listserv.illinois.edu/wa.cgi?A2=ind1304a&L=wx-tropl&T=0&X=558D791777B97BA4EA&P=19317 Report https://archive.today/20131105173223/https://listserv.illinois.edu/wa.cgi?A2=ind1304a&L=wx-tropl&T=0&X=558D791777B97BA4EA&P=19317 November 5, 2013 dead On April 5, the system developed convective bands that have further deepened, and wrapped tighter around the LLCC.Joint Typhoon Warning Center April 5, 2013 May 8, 2013 Tropical Cyclone Formation Alert http://weather.noaa.gov/pub/data/raw/wt/wtxs21.pgtw..txt Report https://web.archive.org/web/20131006083033/http://weather.noaa.gov/pub/data/raw/wt/wtxs21.pgtw..txt October 6, 2013 dead Later that day, the RSMC designated the system Zone of Disturbed Weather 10.Météo France April 5, 2013 May 8, 2013 Warning for Metarea VIII (S) http://weather.noaa.gov/pub/data/raw/wt/wtxs21.pgtw..txt 6FeaPHulV https://web.archive.org/web/20131006083033/http://weather.noaa.gov/pub/data/raw/wt/wtxs21.pgtw..txt October 6, 2013 dead Moderate Tropical Storm Jamala SWI Jamala May 10 2013 0425Z.jpg Jamala 2013 path.png May 9 May 11 40 45 992 February 2017 In the middle of May, Tropical Storm Jamala existed in the northeastern portion of the basin. Storm names Within the South-west Indian Ocean Tropical Depressions and Subtropical Depressions that are judged to have 10-minute sustained windspeeds of 65 km/h, (40 mph) by the Regional Specialized Meteorological Center on La Réunion Island, France (RSMC La Réunion) are usually assigned a name. However it is the Sub-Regional Tropical Cyclone Advisory Centers in Mauritius and Madagascar who name the systems. The Sub-Regional Tropical Cyclone Advisory Center in Mauritius names the storm should it intensify into a moderate tropical storm between 55°E and 90°E, if the storm should intensify into a moderate tropical storm between 30°E and 55°E then the Sub-Regional Tropical Cyclone Advisory Center in Madagascar assigns the appropriate name to the storm. New name lists are used every year, whilst a name is normally only used once so thus far no names are retired.2010 Tropical Cyclone Operational Plan for the South-West Indian Ocean 2012-06-07 Regional Association I Tropical Cyclone Committee World Meteorological Organization http://www.wmo.int/pages/prog/www/tcp/documents/TCP-12_2010_English.pdf For the first time this year tropical cyclones that move into this region from the Australian Region will not be renamed by the Sub-Regional Tropical Cyclone Advisory Center in Mauritius. Anais Boldwin Claudia Dumile Emang Felleng Gino Haruna Imelda Jamala Kachay Luciano Mariam Njazi Onias Pelagie Quiliro Richard Solani Tamim Urilia Vuyane Wagner Xusa Yarona Zacarias Season effects This table lists all of the tropical cyclones and subtropical cyclones that were monitored during the 2012–2013 South-West Indian Ocean cyclone season. Information on their intensity, duration, name, and areas affected, primarily comes from RSMC La Réunion.Météo France (RSMC La Réunion) http://arquivo.pt/wayback/20090712010756/http%3A//www%2Emeteo%2Efr/temps/domtom/La_Reunion/ July 12, 2009 Death and damage reports come from either press reports or the relevant national disaster management agency while the damage totals are given in 2012 USD. |- | 01 Anais || 121012 October 12–19 || bgcolor=#intense|5 Intense tropical cyclone || bgcolor=#intense|185 185 km/h mph on 5 || bgcolor=#intense|0945 945 hPa inHg 4 on || Diego Garcia, Madagascar || None || None || |- | 02 02 || 121115 November 15–16 || bgcolor=#swiodisturbance|0 Tropical disturbance || bgcolor=#swiodisturbance|045 45 km/h mph on 5 || bgcolor=#swiodisturbance|1004 1004 hPa inHg 4 on || None || None || None || |- | 03 Boldwin || 121123 November 23–26 || bgcolor=#swiosts|3 Severe tropical storm || bgcolor=#swiosts|100 100 km/h mph on 5 || bgcolor=#swiosts|0985 985 hPa inHg 4 on || None || None || None || |- | 04 Claudia || 121206 December 6–13 || bgcolor=#intense|5 Intense tropical cyclone || bgcolor=#intense|175 175 km/h mph on 5 || bgcolor=#intense|0940 940 hPa inHg 4 on || None || None || None || |- | 05 Dumile || 121229 December 29 – January 5 || bgcolor=#swiotc|4 Tropical cyclone || bgcolor=#swiotc|130 130 km/h mph on 5 || bgcolor=#swiotc|0970 970 hPa inHg 4 on || Mauritius, Réunion Island || 46000000 $ || 2 || |- | 06 Emang || 130112 January 12–17 || bgcolor=#mtstorm|2 Moderate tropical storm || bgcolor=#mtstorm|065 65 km/h mph on 5 || bgcolor=#mtstorm|0994 994 hPa inHg 4 on || None || None || None || |- | 07 Felleng || 130126 January 26 – February 3 || bgcolor=#intense|5 Intense tropical cyclone || bgcolor=#intense|165 165 km/h mph on 5 || bgcolor=#intense|0935 935 hPa inHg 4 on || Seychelles, Madagascar, Mauritius, Réunion Island || Unknown || 9 || |- | 08 Gino || 130211 February 11–15 || bgcolor=#swiotc|4 Tropical cyclone || bgcolor=#swiotc|140 140 km/h mph on 5 || bgcolor=#swiotc|0953 953 hPa inHg 4 on || None || None || None || |- | 09 Haruna || 130218 February 18–25 || bgcolor=#swiotc|4 Tropical cyclone || bgcolor=#swiotc|150 150 km/h mph on 5 || bgcolor=#swiotc|0960 960 hPa inHg 4 on || Mozambique, Madagascar || Unknown || 25 25 || |- | 10 Imelda || 120405 April 5–16 || bgcolor=#swiotc|4 Tropical cyclone || bgcolor=#swiotc|150 150 km/h mph on 5 || bgcolor=#swiotc|0960 960 hPa inHg 4 on || St Brandon, Mauritius, Rodrigues || None || None || |- | 11 Jamala || 120509 May 9–11 || bgcolor=#mtstorm|2 Moderate tropical storm || bgcolor=#mtstorm|075 75 km/h mph on 5 || bgcolor=#mtstorm|0992 992 hPa inHg 4 on || None || None || None || |- 11 systems October 12 – May 11 185 km/h mph on 5 935 hPa inHg 4 on >$46 million 50 See also Tropical cyclones Tropical cyclones in 2012 and 2013 South-West Indian Ocean tropical cyclone List of Southern Hemisphere tropical cyclone seasons Atlantic hurricane seasons: 2012, 2013 Pacific hurricane seasons: 2012, 2013 Pacific typhoon seasons: 2012, 2013 North Indian Ocean cyclone seasons: 2012, 2013 2012–13 Australian region cyclone season 2012–13 South Pacific cyclone season References 2 2012 y 2010 South-West Indian Ocean cyclone yes Category:2012 in Madagascar Category:2013 in Madagascar Category:2012 in Réunion Category:2013 in Réunion Category:Articles which contain graphical timelines Category:South-West Indian Ocean cyclone seasons 2012 SWIO 2013 SWIO