2009–10 South-West Indian Ocean cyclone season

Cyclone season in the Southwest Indian Ocean SWI 2010 2009-10 South-West Indian Ocean cyclone season summary.png August 18, 2009 May 29, 2010 Edzani 910 120 10 16 12 9 5 4 1 85 total 2007–08, 2008–09, 2009–10, 2010–11, 2011–12 Timeline of the 2009–10 South-West Indian Ocean cyclone season 2009–10 Australian region cyclone season 2009–10 South Pacific cyclone season The 2009–10 South-West Indian Ocean tropical cyclone season was a near average event in tropical cyclone formation. The season officially started on July 1, 2009, and ended on June 30, 2010, after incorporating the tropical cyclone season which ran from November 1 to April 30 for all areas except for Mauritius and the Seychelles, for which it ended on May 15, 2010. In this basin which officially runs from 30 to 90E, and is, to the south of the equator, the main warning center is the Regional Specialized Meteorological Center on La Réunion Island (RSMC La Réunion); however they delegate the naming of Cyclones to the Meteorological services of Mauritius and Madagascar.http://www.wmo.int/pages/prog/www/tcp/documents/TCP12Edition2006-English.pdf Tropical Cyclone Operational Plan for the South West Indian Ocean (2006) 2006 World Meteorological Organization 2009-10-25 It was predicted by the Mauritius Meteorological service that there would be between nine and eleven named storms in the South West Indian Ocean during the season.http://metservice.intnet.mu/wsoutluk.htm The 2009 – 2010 Summer Season Outlook 2009-10-16 Mauritius Meteorological Service 2009-10-25 dead https://web.archive.org/web/20091005040712/http://metservice.intnet.mu/wsoutluk.htm October 5, 2009 Their further assessment that there was a good probability of a named storm forming in November was justified when Tropical Cyclone Anja formed on November 14. __TOC__ Timeline Systems Tropical Disturbance 01 SWI August 18 August 20 20 01R 2009-08-18 0815Z.jpg 01R 2009 track.png 1004 Early on August 17, the JTWC reported that an area of disturbed weather had formed about 1200 kilometres, (750 miles), to the east of Diego Garcia.ftp://ftp.met.fsu.edu/pub/weather/tropical/GuamStuff/2009081711-ABIO.PGTW Significant Tropical Weather Advisory for the Indian Ocean 2009-08-17 11z 2009-08-17 Joint Typhoon Warning Center dead 2009-08-18 The convection had a developed low level circulation center, however convection had not started to consolidate around it and was in an area of strong vertical wind shear. During that day the disturbance gradually developed further as the environment around it gradually improved and was designated as Tropical Disturbance 01 by RSMC La Réunion early the next day.2009-08-17 2009-08-18 ftp://ftp.met.fsu.edu/pub/weather/tropical/GuamStuff/2009081718-ABIO.PGTW Joint Typhoon Warning Center dead Significant Tropical Weather Advisory for the Indian Ocean 2009-08-18 18zftp://ftp.met.fsu.edu/pub/weather/tropical/Seychelles/2009081802-FMEE RSMC Tropical Cyclone Bulletin 2009-08-18 00z 2009-08-18 Météo-France dead 2009-08-18 However, later that day they downgraded it to a zone of disturbed weather and released their final advisory on the disturbance as it had remained weak with the low level circulation center remaining weak and exposed.ftp://ftp.met.fsu.edu/pub/weather/tropical/Seychelles/2009081812-FMEE RSMC Technical Bulletin 2009-08-18 12z 2009-08-18 Météo-France dead 2009-08-18 Over the next few days it weakened further before dissipating on August 20.ftp://ftp.met.fsu.edu/pub/weather/tropical/GuamStuff/2009082018-ABIO.PGTW Significant Tropical Weather Advisory for the Indian Ocean 2009-08-20 18z 2009-08-20 Joint Typhoon Warning Center dead 2009-08-20 Zone of Disturbed Weather 02 SWI September 18 September 20 ZODW MFR 20 02R Sep 20 2009 0427Z.jpg 02R 2009 track.png 1008 During September 17, both TCWC Jakarta and the JTWC reported that an area of convection had persisted about 740 km mi on, to the south east of Sumatra in Indonesia.http://maritim.bmg.go.id/cyclones/IDJ22300.txt Tropical Weather Outlook: 2009-09-16 06z 2009-09-16 Indonesian Agency for Meteorology, Climatology and Geophysics 2009-09-18 id dead https://web.archive.org/web/20090429053329/http://maritim.bmg.go.id/cyclones/IDJ22300.txt April 29, 2009 http://metocph.nmci.navy.mil/jtwc/ab/abioweb.txt Significant Tropical Weather Advisory for the Indian Ocean 2009-09-16 11z 2009-09-16 Joint Typhoon Warning Center 2009-09-18 dead https://web.archive.org/web/20090414140019/http://metocph.nmci.navy.mil/jtwc/ab/abioweb.txt April 14, 2009 Satellite imagery was showing that the convection was slowly starting to consolidate with a well defined low level circulation centre off the western coast of Sumatra. However it was not expected to develop any further due to being in area of high vertical wind shear in excess of 40 kn km/h. Despite this it was designated as a tropical low early the next day by TCWC Perth.http://dynasmon.fortunecity.com/Perth.html TCWC Perth Tropical Cyclone Outlook for the Central Indian Ocean 2009-09-17 0400z 2009-09-17 Bureau of Meteorology (Australia) 2009-09-18 dead https://web.archive.org/web/20090726132921/http://dynasmon.fortunecity.com/Perth.html July 26, 2009 The JTWC then declared early the next day that the disturbance had dissipated as it crossed 90E and moved into RSMC La Réunion's area of responsibility.http://metocph.nmci.navy.mil/jtwc/ab/abioweb.txt Significant Tropical Weather Advisory for the Indian Ocean 2009-09-18 11z 2009-09-18 Joint Typhoon Warning Center 2009-09-18 dead https://web.archive.org/web/20090414140019/http://metocph.nmci.navy.mil/jtwc/ab/abioweb.txt April 14, 2009 http://199.9.2.143/tcdat/tc10/SHEM/91S.INVEST/trackfile.txt https://web.archive.org/web/20180103154805/http://199.9.2.143/tcdat/tc10/SHEM/91S.INVEST/trackfile.txt dead 2018-01-03 Operational Best Track Details for 91S Invest 2009-09-16 Joint Typhoon Warning Center United States Naval Research Laboratory 2009-09-18 TCWC Perth continued to monitor the tropical low as it slowly developed further until early on September 20 when RSMC La Réunion designated it as the second Zone of Disturbed Weather of the 2009–10 as convection had developed over the system and the amount of vertical wind shear over the system had dropped.http://www.geocities.com/rattleman123456/IDW10900.htm Tropical Cyclone Outlook for the Central Indian Ocean 2009-09-20 Bureau of Meteorology (Australia) 2009-12-12 dead https://web.archive.org/web/20161004150949/http://www.geocities.com/rattleman123456/IDW10900.htm October 4, 2016 ftp://ftp.met.fsu.edu/pub/weather/tropical/Seychelles/2009092007-FMEE RSMC La Reunion Tropical Cyclone Warning 2009-09-20 06z 2009-09-20 Météo-France dead 2009-12-12 However, they released their final advisory later that day, as convection had dissipated in the northern quadrants of the system.ftp://ftp.met.fsu.edu/pub/weather/tropical/Seychelles/2009092013-FMEE RSMC La Reunion Tropical Cyclone Warning 2009-09-20 12z 2009-09-20 Météo-France dead 2009-12-12 Tropical Disturbance 03 SWI November 7 November 10 25 03R 7 November 2009.jpg 03R 2009 track.png 1002 Early on November 7, the JTWC issued a Tropical Cyclone Formation Alert on a system north of Diego Garcia. Later that day, RSMC La Réunion upgraded the system to a tropical disturbance. Despite forecasts that the system would strengthen to a depression, it was substantially affected by shear, and as a result, the JTWC cancelled their TCFA on November 9. Intense Tropical Cyclone Anja SWI November 13 November 18 90 105 Anja 2009-11-15 0520Z.jpg Anja 2009 path.png 950 RSMC La Réunion commenced advisories on Tropical Disturbance 04 on November 14, raising the status to a Tropical Depression later the same day. At the time of formation, it was some 390 mi km on south of Diego Garcia. Throughout that day, and into the 15th, Anja rapidly intensified from a severe tropical storm to a tropical cyclone on the MFR scale and a Category 3-equivalent cyclone on the Saffir–Simpson hurricane scale (SSHS), while remaining well away from land. The system displayed annular characteristics and was very small; its diameter was 60 nmi km and it displayed a pinhole eye.http://weather.noaa.gov/pub/data/raw/wt/wtxs31.pgtw..txt JTWC Warning 07 for Tropical Cyclone 01S (Anja) November 17, 2009 Joint Typhoon Warning Center 2009-11-17 dead https://web.archive.org/web/20090717084700/http://weather.noaa.gov/pub/data/raw/wt/wtxs31.pgtw..txt July 17, 2009 The storm peaked at a Category 3-equivalent intensity and held its strength until November 17 when the storm rapidly weakened to a tropical storm. Final advisories were issued on November 18 as the system weakened to a depression and became extratropical. Moderate Tropical Storm Bongani SWI November 22 November 25 40 40 996 Bongani Nov 22 2009 0955Z.jpg Bongani 2009 path.png On November 22, RSMC La Réunion commenced issuing advisories for Tropical Disturbance 05 about 500 mi km on northeast of Madagascar. The next day it strengthened to a Moderate Tropical Storm and was named 'Bongani'. On November 23–24, the system remained small sized and was undergoing a temporarily southeasterly constraint. According to CIMSS data (MIMIC-TPW), the dry air that was to the southwest of the system interfered with circulation of the system and temporarily limited the intensification rate. On the morning of November 24, Bongani rapidly weakened into a tropical disturbance. The remnants of Bongani brought unsettled weather to the Mayotte Islands. Moderate rains affected the region between November 26 and 27; waves associated with the storm also averaged 3 m ft on along coastal areas with some reaching 6 m ft on.Staff Writer Mayotte Hebdo November 26, 2009 December 9, 2009 Bongani apporte la pluie http://www.mayottehebdo.com/content/view/1835/47/ fr https://web.archive.org/web/20140203104944/http://www.mayottehebdo.com/content/view/1835/47/ 2014-02-03 dead In the nearby Comoros Islands, waves were similarly high, with the highest reaching 5 m ft on.Hakim Ahamed Zoubeiri Actualité des Iles Comoros November 26, 2009 December 19, 2009 Ex-Bongani : pluie, orage et houle sur les Comores http://zoubeiri.unblog.fr/2009/11/26/ex-bongani-pluie-orage-et-houle-sur-les-comores/ fr https://web.archive.org/web/20110721022834/http://zoubeiri.unblog.fr/2009/11/26/ex-bongani-pluie-orage-et-houle-sur-les-comores/ 2011-07-21 dead Intense Tropical Cyclone Cleo SWI December 6 December 14 105 115 930 Cleo 2009 path.png Cleo.A2009342.0525.250m.jpg On December 6, a strong tropical disturbance 06 newly formed in the central Indian Ocean. The storm was expected to strengthen slowly, however, the next day, the disturbance strengthened into a severe tropical storm while being given a designation as Tropical Cyclone 03S by the JTWC. On 8 December it strengthened rapidly to become the first Intense Tropical Cyclone of the season and a Category 4-equivalent cyclone on the Saffir–Simpson hurricane scale (SSHS). It sustained this strength for a day peaked at a Category 4-equivalent intensity and held its strength as a high strong category 4-equivalent, then on the 10th slowly weakened to a category 2 equivalent cyclone. The weakening continued steadily, and the final advisory was issued on December 12 when the remnants were 370 mi km north of Rodrigues. Later that day, the remnants of Ex-Cleo regenerated to a tropical depression, but it weakened to a tropical disturbance and dissipated on December 14. Moderate Tropical Storm David SWI December 12 December 25 45 55 987 David_2009_path.png David_21_December_2009.jpg On December 12, a zone of disturbed weather formed in the Southern Indian Ocean near the border with the Australian region. The next day the RSMC classified it as Tropical Disturbance 07, and JTWC as Tropical Cyclone 05S, but its movement to cooler water and higher levels of wind shear weakened the tropical system on the 14th. The remnants continued to show a Low level Circulation Centre accompanied by flaring convection as they headed west or northwest, and the organisation began to improve again on the 19th. ftp://ftp.met.fsu.edu/pub/weather/tropical/GuamStuff/2009121909-ABIO.PGTW Significant Tropical Weather Advisory for the Indian Ocean December 19, 2009 Joint Typhoon Warning Center dead 2009-12-19 It continued to organize throughout the next day, and by the 21st of December it was named Moderate Tropical Storm David by the Mauritius Meteorological Service.ftp://ftp.met.fsu.edu/pub/weather/tropical/Seychelles/2009122112-FMEE Moderate Tropical Storm 7 (David) Warning 09 December 21, 2009 Météo-France dead 2009-12-21 It then reversed its direction of motion and headed east-southeast while strengthening to a Severe Tropical Storm.ftp://ftp.met.fsu.edu/pub/weather/tropical/Seychelles/2009122218-FMEE Severe Tropical Storm 14 (David) Warning 14 December 22, 2009 Météo-France dead 2009-12-22 Its strength fluctuated for the next few days, and by Christmas Day it was moving very little and windshear weakened it to a Tropical Disturbance. The final advisory from the RSMC was issued on December 25, although the remnant continued to produce bursts of poorly organized convection for several days as it reversed direction again and headed west. In post-season analysis, David was downgraded to a Moderate Tropical Storm as winds were reassessed to have never exceeded 85 km/h mph on 5. On December 29, the remnants of David brought heavy rain to the islands of Mauritius and Réunion. Most of Mauritius recorded over 100 mm in on of rain within a 24-hour span, with a maximum of 146.2 mm in on in Mon Loisir Rouillard. Widespread flash flooding took place across the island, resulting in over 20 calls to firefighters for rescue. Officials deployed special mobile forces in several cities due to the risk of increased flooding.Julien Tuyau La Sentinelle December 29, 2009 December 29, 2009 Pluies diluviennes: les pompiers et la Special Mobile Force en état d'alerte http://www.lexpress.mu/story/8593-pluies-diluviennes-les-pompiers-et-la-special-mobile-force-en-etat-d-alerte.html fr https://web.archive.org/web/20110719042048/http://www.lexpress.mu/story/8593-pluies-diluviennes-les-pompiers-et-la-special-mobile-force-en-etat-d-alerte.html 2011-07-19 dead Very Intense Tropical Cyclone Edzani SWI January 4 (Entered basin) January 14 120 140 Edzani 07 jan 2010 0825Z.jpg Edzani_2010_path.png 910 Tropical Low 03U of the Australian Region crossed the 90ºE meridian on 4 January and was designated Tropical Disturbance 8 by RSMC La Réunion. The system showed two low-level circulation centres for a while, but on 5 January these consolidated, and the combination was upgraded to a Tropical Depression. At 0300 UTC on January 6, the JTWC starts issuing advisories designating the system as 07S, and shortly thereafter the RSMC upgraded it to Moderate Tropical Storm Edzani. Early on January 7, RSMC La Réunion upgraded Edzani to a Severe Tropical Storm, and it strengthened rapidly throughout the day to become an Intense Tropical Cyclone. The next day it became a Very Intense Tropical Cyclone and category 5 (1 min 260 kmh) by JTWC, the first since Juliet in April 2005. On January 9, Edzani was downgraded to an Intense Tropical Cyclone due to decreasing sea surface temperatures. It continued to weaken during the day, as sea surface temperatures continued to decrease. By January 10, it was only a Tropical Cyclone, and within the next few days it weakened to Moderate Tropical Storm strength. The RSMC classified it as a subtropical cyclone by January 12, although JTWC treated it as tropical for 2 days longer. Tropical Disturbance 09 SWI January 15 January 16 25 09R_13_January_2010.jpg 09R 2010 track.png 1005 An area of disturbed weather, first observed over the Mozambique Channel around 8 January, moved across northern Madagascar and into the Indian Ocean where it displayed occasional bursts of convection. On 15 January the LLCC improved in organisation, and the RSMC designated it as a Tropical Disturbance 245 nmi km on to the west-southwest of La Réunion. The next day, RSMC La Réunion issued their final advisory on the system as the center was ill-defined. Subtropical Depression 10 SWI subdepression January 25 January 31 35 35 MFR 10R 27 January 2010.jpg 11-S_2010_path.png 995 On January 26, RSMC La Réunion announced that a Zone of Disturbed Weather had formed about 350 mi km NNE of Mauritius. Next day this was raised to a Tropical Disturbance, and JTWC designated is as Tropical Cyclone 11S based on 1-minute wind strength. By January 29 it displayed hybrid characteristics and was classified as a subtropical depression, although the maximum winds reached storm strength. Moderate Tropical Storm Fami SWI Fami 02 feb 2010 1040Z.jpg February 1 February 3 45 40 Fami 2010 path.png 990 On February 1, RSMC La Réunion commenced issuing advisories for Tropical Disturbance 11 in the Mozambique Channel. On February 2 it strengthened to a Moderate Tropical Storm and was named Fami. Shortly after this it made landfall on the western Malagasy coast and weakened rapidly to a depression. Fami dissipated on February 2. Intense Tropical Cyclone Gelane SWI Tropical Cyclone Gelane 2010-02-19 lrg.jpg February 15 February 22 110 125 Gelane 2010 path.png 930 On February 15, the RSMC announced the formation of Tropical Disturbance 12 approximately 650 nmi km on NNE of La Réunion. Hours later it was classified as Moderate Tropical Storm Gelane. It reached Tropical Cyclone strength briefly on February 17, but quickly weakened to a Severe Tropical Storm. Then on February 18, it restrengthened back into a Tropical Cyclone, eventually becoming an Intense Tropical Cyclone. It remained a small system and weakened rapidly as wind shear effects increased. Severe Tropical Storm Hubert SWI Tropical Cyclone Hubert 2010-03-10 lrg.jpg March 7 March 15 55 50 Hubert 2010 path.png 985 Tropical Storm Hubert On March 9, a tropical disturbance formed between Madagascar and Réunion. On March 10 it strengthened to a tropical storm and was named Hubert by the meteorological service of Madagascar. It strengthened to a severe tropical storm as it approached the Madagascar coast, and made landfall north of Mananjary. At least ten people were killed by the storm and 32,000 others were affected throughout Madagascar.http://breakingnews.iol.ie/news/world/tropical-storm-kills-10-in-madagascar-449731.html https://archive.today/20120708225717/http://breakingnews.iol.ie/news/world/tropical-storm-kills-10-in-madagascar-449731.html dead 2012-07-08 Tropical storm kills 10 in Madagascar | BreakingNews.ie Later reports confirmed that four other people had been killed and two more were missing. Nearly 38,000 people were left homeless by flooding triggered by torrential rains from the storm.http://www.google.com/hostednews/afp/article/ALeqM5jGxY7mebgfTtuWSpUMlUzqcgrcpA AFP: Tropical storm Hubert leaves 14 dead in Madagascar 2010-03-14 2010-03-17 https://web.archive.org/web/20100317191741/http://www.google.com/hostednews/afp/article/ALeqM5jGxY7mebgfTtuWSpUMlUzqcgrcpA dead Tropical Cyclone Imani SWI Imani 2010-03-25 0750Z.jpg March 20 March 28 70 80 Imani 2010 path.png 965 Tropical Disturbance 14 formed on 22 March in the far east of the SW Indian Ocean basin, close to 90ºE. Although the precursor disturbance had been drifting eastwards, TD 14 was predicted to remain in this basin and not move into the Australian. It became a tropical depression later the same day, and was upgraded to Moderate Tropical Storm Imani on 23 March and a Severe Tropical Storm the next day. It continued to strengthen as it moved southwards, and reached tropical cyclone strength on 25 March. It started to dissipate on March 26, and La Réunion had stopped releasing advisories on Imani at 1200z, March 26. Tropical Depression 15 (Robyn) SWI April 7 April 7 Robyn 2010-04-05 0735Z.jpg Robyn 2010 path.png 30 30 1002 The remnants of Cyclone Robyn crossed into this basin on 7 April as a Filling Depression, and a single advisory was issued by RSMC La Réunion. Subtropical Depression Joël SWI subdepression subtropical May 26 May 29 MFR Joel May 26 2010 1120Z.jpg Joel 2010 path.png 60 45 990 An area of convection southwest of Madagascar was designated Subtropical Depression 16 by RSMC La Réunion on 26 May. The small system strengthened rapidly and was soon named Joël, although still classified as a Subtropical Depression. NASA also considered the storm to have been subtropical, attaining peak one-minute sustained winds of 85 km/h mph on 5.NASA.gov Storm names Tropical disturbances are named upon reaching moderate tropical storm strength.http://www.wmo.ch/web/www/TCP/OperationPlans/TCP-12%20Edition%202006-English.pdf Tropical cyclone Operational Plan for the Southwest Indian Ocean 2006 World Meteorological Organisation 2009-08-18 dead https://web.archive.org/web/20060921213201/http://www.wmo.ch/web/www/TCP/OperationPlans/TCP-12%20Edition%202006-English.pdf September 21, 2006 If a tropical disturbance reaches this intensity west of 55°E, then the Sub-Regional Tropical Cyclone Advisory Centre in Madagascar assigns the appropriate name to the storm. If it reaches moderate tropical storm strength between 55°E and 90°E, then the Sub-Regional Tropical Cyclone Advisory Centre in Mauritius names the storm. A new list of names is drawn up and used each year, so no names are retired. The names for this season are as follows:http://www.meteo.fr/temps/domtom/La_Reunion/TGPR/saison/Liste_NomsBapteme.html Tropical Cyclone Names 2009–10 2009-08-13 2009-08-18 https://web.archive.org/web/20080915105012/http://www.meteo.fr/temps/domtom/La_Reunion/TGPR/saison/Liste_NomsBapteme.html 2008-09-15 dead Anja Bongani Cleo David Edzani Fami Gelane Hubert Imani Joël Kanja Lunda Mohono Nigel Olympe Pamela Quentin Rahim Savana Themba Uyapo Viviane Walter Xangy Yemurai Zanele Season effects This table lists all the storms that developed in the Southern Hemisphere during the 2009–2010 South-West Indian Ocean cyclone season. It includes their intensity, duration, name, landfalls, deaths, and damages. All data is taken from Météo-France. The damage figures are all from 2009 USD. 01 01 August 18 0 Tropical disturbance 035 35 km/h mph on 5 1004 1004 hPa inHg 4 on None None None 02 02 September 18–20 0 Zone of disturbed weather 035 35 km/h mph on 5 1008 1008 hPa inHg 4 on None None None 03 03 September 18–20 0 Tropical disturbance 045 45 km/h mph on 5 1002 1002 hPa inHg 4 on None None None 04 Anja November 14–18 5 Intense tropical cyclone 165 165 km/h mph on 5 0950 950 hPa inHg 4 on None None None 05 Bongani 20091122 November 22 – 25 2 Moderate tropical storm 40 kn km/h mph out on 5 on 997 hPa inHg 4 on on Madagascar, Mayotte, Comoros 1 Unknown 1 Unknown 06 Cleo December 6–14 5 Intense tropical cyclone 195 195 km/h mph on 5 930 930 hPa inHg 4 on None None None 07 David 20091212 December 12 – 25 2 Moderate tropical Storm 45 kn km/h mph out on 5 on 987 hPa inHg 4 on on Reunion, Mauritius, Madagascar 1 Unknown 1 Unknown 08 Edzani January 4–14 6 Very intense tropical cyclone 220 220 km/h mph on 5 0910 910 hPa inHg 4 on None None None 09 09 January 15 0 Tropical disturbance 045 45 km/h mph on 5 1005 1005 hPa inHg 4 on Reunion, Mauritius, Madagascar None None 10 10/11S January 26–30 1 Subtropical depression 065 65 km/h mph on 5 1005 1005 hPa inHg 4 on Reunion, Mauritius, Madagascar None None 11 Fami 20100201 February 1 – 3 2 Moderate tropical storm 45 kn km/h mph out on 5 on 994 hPa inHg 4 on on Madagascar 1 Unknown 1 Unknown 12 Gelane February 15–22 5 Intense tropical cyclone 205 205 km/h mph on 5 0930 930 hPa inHg 4 on Reunion, Mauritius, Rodrigues, Madagascar None None 13 Hubert March 7–15 3 Severe tropical storm 100 100 km/h mph on 5 0985 985 hPa inHg 4 on Madagascar Unknown 85 14 Imani March 20–27 4 Tropical cyclone 130 130 km/h mph on 5 0965 965 hPa inHg 4 on None None None 15 Robyn April 7 1 Tropical depression 055 55 km/h mph on 5 0998 998 hPa inHg 4 on None None None 16 Joël 20100522 May 22 – 29, 2010 2 Subtropical depression 60 kn km/h mph out on 5 on 990 hPa inHg on 4 on Mozambique, Madagascar 1 Minimal 1 Unknown 2010 Moderate Tropical Storm Joël (2010143S20035) International Best Track Archive for Climate Stewardship May 8, 2022 2010143S20035May 8, 2022 Météo-France South-West Indian Ocean Cyclone Season: 2009–10 Tropical Cyclone Seasonal Summary http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/archives/publications/data/cSaisoncyclonique20092010.pdf16 systems August 18 – May 29 220 km/h mph on 5 910 hPa inHg 4 on Unknown 85 See also Tropical cyclones Tropical cyclones in 2009 and 2010 South-West Indian Ocean tropical cyclone List of Southern Hemisphere cyclone seasons Atlantic hurricane seasons: 2009, 2010 Pacific hurricane seasons: 2009, 2010 Pacific typhoon seasons: 2009, 2010 North Indian Ocean cyclone seasons: 2009, 2010 2009–10 Australian region cyclone season 2009–10 South Pacific cyclone season References 2 External links Joint Typhoon Warning Center (JTWC) https://web.archive.org/web/20100301105349/http://www.usno.navy.mil/JTWC 2010-03-01 . Météo France (RSMC La Réunion). World Meteorological Organization 2009 y 2000 South-West Indian Ocean cyclone yes Cyclone Season Cyclone Season Cyclone Season Cyclone Season Cyclone Season Cyclone Season Category:Articles which contain graphical timelines Category:South-West Indian Ocean cyclone seasons 2009 SWIO 2010 SWIO