2002–03 South-West Indian Ocean cyclone season: Difference between revisions
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In late August, a weak [[tropical cyclone#structure|low-level circulation]] persisted near [[Diego Garcia]]. It was associated with a [[trough (meteorology)|trough]] near the equator, and initially remained disorganized due to high [[wind shear]]. The disturbance was located at a low latitude near the equator, and a [[ridge (meteorology)|ridge]] extending from the eastern coast of Africa imparted a general west-southwest movement.<ref name="sgp">{{cite web|author= |
In late August, a weak [[tropical cyclone#structure|low-level circulation]] persisted near [[Diego Garcia]]. It was associated with a [[trough (meteorology)|trough]] near the equator, and initially remained disorganized due to high [[wind shear]]. The disturbance was located at a low latitude near the equator, and a [[ridge (meteorology)|ridge]] extending from the eastern coast of Africa imparted a general west-southwest movement.<ref name="sgp">{{cite web|author=Boyle, Kevin|publisher=Padgett, Gary|title=Monthly Global Tropical Cyclone Summary September 2002|url=http://australiasevereweather.com/cyclones/2003/summ0209.htm|accessdate=2013-04-28}}</ref> The system was organized enough to be classified by MFR on September 4 at 2.5º S.<ref name="1bt">{{cite report|author=Knapp, K. R.|author2=M. C. Kruk|author3=D. H. Levinson|author4=H. J. Diamond|author5=C. J. Neumann|year=2010|work=The International Best Track Archive for Climate Stewardship (IBTrACS): Unifying tropical cyclone best track data|title=2003 0120022003:Abaimba (2002247S03067)|publisher=Bulletin of the American Meteorological Society|accessdate=2013-04-14|url=http://storm5.atms.unca.edu/browse-ibtracs/browseIbtracs.php?name=v03r02-2002247S03067}}</ref> Subsequently, the system developed more [[convection (meteorology)|convection]] as its circulation became better defined. Operationally, MFR began issuing warnings on September 5 on Tropical Disturbance 01, and the next day upgraded it to a tropical depression.<ref name="sgp"/> Post analysis from MFR indicated that the system reached peak winds of 65 km/h (40 mph) on September 6,<ref name="1bt"/> the same day that the [[Joint Typhoon Warning Center]] (JTWC) initiated advisories on it as Tropical Cyclone 01S. The storm developed [[rainband|banding features]], but the thunderstorms were sheared away from the circulation. On September 7, the storm moved through [[Seychelles]] – an island nation in the southern Indian Ocean – before weakening. MFR discontinued advisories on September 8, and the JTWC followed suit the next day.<ref name="sgp"/> |
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While moving through Seychelles, the storm produced a [[microburst]] that last for two hours across several islands, producing wind gusts up to {{convert|130|km/h|mph|abbr=on}} on [[Praslin]]. Heavy rainfall affected Praslin, [[La Digue]], and particularly [[Mahé, Seychelles|Mahé]], which reported {{convert|327.1|mm|in|abbr=on}} in a 24 hour period. Damage on Mahé was limited to landslides and some flooding. On Praslin, high winds damaged the roofs of over 50 houses and destroyed six homes, while the airport was also damaged. The winds damaged 50 power lines, causing an island-wide power outage. High winds also downed about 30,000 trees,<ref name="sey">{{cite report|publisher=United Nations Office for the Coordination of Humanitarian Affairs|year=2003|title=Tropical Depression Storm over Praslin and its Satellite Islands in Seychelles|accessdate=2013-04-28|url=https://ochanet.unocha.org/p/Documents/Seychelles.pdf|format=PDF}}</ref> which blocked roads but were quickly removed.<ref>{{cite report|author=International Federation of Red Cross and Red Crescent Societies|publisher=ReliefWeb|date=2002-09-13|title=Seychelles: Heavy rains & strong winds Information Bulletin No. 1/2002|accessdate=2013-04-28|url=http://reliefweb.int/report/seychelles/seychelles-heavy-rains-strong-winds-information-bulletin-no-12002}}</ref> Due to widespread tree damage, [[Cousin Island]] – a nature preserve – was closed for about two weeks, accounting for about $50,000 (2002 [[United States dollar|USD]], SR250,000 [[Seychellois rupee|rupees]]) in damage.<ref name="sey"/> Nationwide, the storm left 375 families homeless and damaged crop fields,<ref name="sgp"/> becoming the most damaging in the country in 50 years.<ref name="sey"/> |
While moving through Seychelles, the storm produced a [[microburst]] that last for two hours across several islands, producing wind gusts up to {{convert|130|km/h|mph|abbr=on}} on [[Praslin]]. Heavy rainfall affected Praslin, [[La Digue]], and particularly [[Mahé, Seychelles|Mahé]], which reported {{convert|327.1|mm|in|abbr=on}} in a 24 hour period. Damage on Mahé was limited to landslides and some flooding. On Praslin, high winds damaged the roofs of over 50 houses and destroyed six homes, while the airport was also damaged. The winds damaged 50 power lines, causing an island-wide power outage. High winds also downed about 30,000 trees,<ref name="sey">{{cite report|publisher=United Nations Office for the Coordination of Humanitarian Affairs|year=2003|title=Tropical Depression Storm over Praslin and its Satellite Islands in Seychelles|accessdate=2013-04-28|url=https://ochanet.unocha.org/p/Documents/Seychelles.pdf|format=PDF}}</ref> which blocked roads but were quickly removed.<ref>{{cite report|author=International Federation of Red Cross and Red Crescent Societies|publisher=[[ReliefWeb]]|date=2002-09-13|title=Seychelles: Heavy rains & strong winds Information Bulletin No. 1/2002|accessdate=2013-04-28|url=http://reliefweb.int/report/seychelles/seychelles-heavy-rains-strong-winds-information-bulletin-no-12002}}</ref> Due to widespread tree damage, [[Cousin Island]] – a nature preserve – was closed for about two weeks, accounting for about $50,000 (2002 [[United States dollar|USD]], SR250,000 [[Seychellois rupee|rupees]]) in damage.<ref name="sey"/> Nationwide, the storm left 375 families homeless and damaged crop fields,<ref name="sgp"/> becoming the most damaging in the country in 50 years.<ref name="sey"/> |
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Convection persisted near a broad circulation on November 3 to the west of Diego Garcia. The system moved westward and organized due to generally favorable conditions. MFR classified it as Tropical Disturbance 02 on November 4. Two days later, the agency upgraded it to Tropical Depression 2, and shortly thereafter the JTWC initiated advisories on Tropical Cyclone 02S. At that time, the storm was moving to the southwest toward the [[Outer islands of Mauritius|Mauritius outer island]] of [[Agaléga]], developing improved [[outflow (meteorology)|outflow]]. To emphasize the threat, the Meteorological Service of Mauritius named the system Atang, despite it only being a tropical depression. Late on November 6, JTWC estimated peak winds of 85 km/h (50 mph), around the same time that Atang began a slow motion to the southwest. The next day, the depression resumed a westward motion and became disorganized, with several circulations, and the JTWC and MFR both discontinued advisories. The remnants of Atang again turned to the southwest and re-intensified, prompting JTWC and MFR to re-issue advisories on November 9. By that time, the outflow improved, although it maintained multiple circulations. Atang passed near the north coast of Madagascar on November 10 after turning to the west, and that day the JTWC again discontinued advisories. After another period of re-organization, the agency again re-issued advisories on Atang on November 11 over the [[Mozambique Channel]]. The next day, the system moved inland in southeastern [[Tanzania]], and dissipated shortly thereafter.<ref name="ngp">{{cite web|author= |
Convection persisted near a broad circulation on November 3 to the west of Diego Garcia. The system moved westward and organized due to generally favorable conditions. MFR classified it as Tropical Disturbance 02 on November 4. Two days later, the agency upgraded it to Tropical Depression 2, and shortly thereafter the JTWC initiated advisories on Tropical Cyclone 02S. At that time, the storm was moving to the southwest toward the [[Outer islands of Mauritius|Mauritius outer island]] of [[Agaléga]], developing improved [[outflow (meteorology)|outflow]]. To emphasize the threat, the Meteorological Service of Mauritius named the system Atang, despite it only being a tropical depression. Late on November 6, JTWC estimated peak winds of 85 km/h (50 mph), around the same time that Atang began a slow motion to the southwest. The next day, the depression resumed a westward motion and became disorganized, with several circulations, and the JTWC and MFR both discontinued advisories. The remnants of Atang again turned to the southwest and re-intensified, prompting JTWC and MFR to re-issue advisories on November 9. By that time, the outflow improved, although it maintained multiple circulations. Atang passed near the north coast of Madagascar on November 10 after turning to the west, and that day the JTWC again discontinued advisories. After another period of re-organization, the agency again re-issued advisories on Atang on November 11 over the [[Mozambique Channel]]. The next day, the system moved inland in southeastern [[Tanzania]], and dissipated shortly thereafter.<ref name="ngp">{{cite web|author=Padgett, Gary|title=Monthly Global Tropical Cyclone Summary November 2002|accessdate=2013-04-28|url=http://www.australiansevereweather.com/cyclones/2003/summ0211.htm}}</ref> |
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In northern Mozambique, Atang produced moderate but beneficial rainfall in [[Cabo Delgado Province]].<ref>{{cite news|newspaper=The Vancouver Sun|date=2002-11-16|title=Earthweek: A Diary of the Planet}} (accessed via Lexis Nexis on 2013-04-28</ref><ref>{{cite report|author=United States Agency for International Development|title=FEWS Mozambique Food Security Update: 19 Nov 2002|publisher=ReliefWeb|date=2002-11-19|accessdate=2013-04-29|url=http://reliefweb.int/report/mozambique/fews-mozambique-food-security-update-19-nov-2002}}</ref> The landfall area does not usually experience tropical cyclones, and damage in Mozambique was minimal.<ref>{{cite report|author=Famine Early Warning System Network|title=Mozambique Food Security Update|date=2002-11-19|publisher=ReliefWeb|accessdate=2013-04-29|url=http://reliefweb.int/sites/reliefweb.int/files/resources/D4247474CB081E1949256C8E00119460-fews-moz-19nov.pdf|format=PDF}}</ref> In Tanzania, there were unofficial reports that Atang killed several fishermen and caused heavy rainfall with wind gusts to 148 km/h (92 mph).<ref name="ngp"/> |
In northern Mozambique, Atang produced moderate but beneficial rainfall in [[Cabo Delgado Province]].<ref>{{cite news|newspaper=The Vancouver Sun|date=2002-11-16|title=Earthweek: A Diary of the Planet}} (accessed via Lexis Nexis on 2013-04-28</ref><ref>{{cite report|author=United States Agency for International Development|title=FEWS Mozambique Food Security Update: 19 Nov 2002|publisher=ReliefWeb|date=2002-11-19|accessdate=2013-04-29|url=http://reliefweb.int/report/mozambique/fews-mozambique-food-security-update-19-nov-2002}}</ref> The landfall area does not usually experience tropical cyclones, and damage in Mozambique was minimal.<ref>{{cite report|author=Famine Early Warning System Network|title=Mozambique Food Security Update|date=2002-11-19|publisher=ReliefWeb|accessdate=2013-04-29|url=http://reliefweb.int/sites/reliefweb.int/files/resources/D4247474CB081E1949256C8E00119460-fews-moz-19nov.pdf|format=PDF}}</ref> In Tanzania, there were unofficial reports that Atang killed several fishermen and caused heavy rainfall with wind gusts to 148 km/h (92 mph).<ref name="ngp"/> |
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For several days in mid-December, [[tropical cyclone forecast model]]s anticipated a storm to form to the southwest of Diego Garcia, which was proven true when an area of convection formed in that area,<ref name="dgp">{{cite report|author= |
For several days in mid-December, [[tropical cyclone forecast model]]s anticipated a storm to form to the southwest of Diego Garcia, which was proven true when an area of convection formed in that area,<ref name="dgp">{{cite report|author=Birger, Thomas|publisher=Padgett, Gary|title=Monthly Global Tropical Cyclone Summary December 2002|accessdate=2013-04-29|url=http://australiasevereweather.com/cyclones/2003/summ0212.htm}}</ref> becoming a tropical disturbance on December 21,<ref name="cbt">{{cite report|author=Knapp, K. R.|author2=M. C. Kruk|author3=D. H. Levinson|author4=H. J. Diamond|author5=C. J. Neumann|year=2010|work=The International Best Track Archive for Climate Stewardship (IBTrACS): Unifying tropical cyclone best track data|title=2003 Crystal (2002356S07070)|publisher=Bulletin of the American Meteorological Society|accessdate=2013-04-29|url=http://storm5.atms.unca.edu/browse-ibtracs/browseIbtracs.php?name=v03r02-2002356S07070}}</ref> the fourth of the season. On December 23, MFR upgraded the disturbance to a tropical depression, and later that day to Tropical Storm Crystal. The storm moved southwestward toward Mauritius due to a ridge to the southeast.<ref name="dgp"/> Strengthening was gradual, and the JTWC upgraded Crystal to the equivalent of a minimal hurricane late on December 24.<ref name="cbt"/> The next day, an eye developed, although dry air initially prevented much further intensification.<ref name="dgp"/> MFR upgraded Crystal to tropical cyclone status on December 26,<ref name="cbt"/> and that day the cyclone passed just east of St. Brandon. Subsequently, Crystal intensified quickly after the eye became clearer,<ref name="dgp"/> reaching peak winds of 150 km/h (90 mph) on December 27.<ref name="cbt"/> Around that time, the storm passed east of Mauritius as it turned to the south while rounding the ridge.<ref name="dgp"/> After maintaining peak winds for about 18 hours, Crystal weakened,<ref name="cbt"/> gradually undergoing [[extratropical cyclone|extratropical]] transition. The convection diminished over the center,<ref name="dgp"/> and Crystal weakened to tropical storm status on December 28.<ref name="cbt"/> The next day, the JTWC and MFR discontinued advisories, labeling the storm as extratropical.<ref name="dgp"/> The remnants continued to the southeast, dissipating on January 3 after crossing into the Australian region.<ref name="cbt"/> |
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While passing just east of St. Brandon, Crystal produced wind gusts of 91 km/h (56 mph). The storm initially threatened to strike Mauritius, but effects were minimal due to the island being on the dry southwest quadrant of the storm. Crystal produced wind gusts of 91 km/h (56 mph). Rainfall reached {{convert|58.8|mm|in|abbr=on}}, although minimal precipitation occurred in northern Mauritius.<ref name="dgp"/> |
While passing just east of St. Brandon, Crystal produced wind gusts of 91 km/h (56 mph). The storm initially threatened to strike Mauritius, but effects were minimal due to the island being on the dry southwest quadrant of the storm. Crystal produced wind gusts of 91 km/h (56 mph). Rainfall reached {{convert|58.8|mm|in|abbr=on}}, although minimal precipitation occurred in northern Mauritius.<ref name="dgp"/> |
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{{main|Tropical Storm Delfina}} |
{{main|Tropical Storm Delfina}} |
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In late December, a tropical disturbance rapidly formed off the northwest coast of Madagascar. By late on December 30, MFR classified it as a tropical disturbance. The system quickly intensified while moving westward, becoming a strong tropical storm before hitting northeastern Mozambique on December 31. Delfina weakened while moving inland, and it was no longer classifiable as a tropical cyclone by January 1.<ref name="dgp"/><ref name="dtrack">{{fr icon}} {{cite report|publisher=Météo-France|title=Track for Severe Tropical Storm Delfina|accessdate=2012-12-03|url=http://www.meteo.fr/temps/domtom/La_Reunion/trajGP20022003/data/06_table.html}}</ref> However, its remnants moved across the country and into [[Malawi]], later looping around and crossing back over Mozambique.<ref name="atcr"/> When the remnants reached the Mozambique Channel, they were reclassified as Tropical Disturbance 07, which moved southward over waters. It re-intensified into a tropical storm on January 8 before weakening the next day, becoming extratropical. The remnants persisted for several days, dissipating on January 14.<ref name="jgp">{{cite web|publisher= |
In late December, a tropical disturbance rapidly formed off the northwest coast of Madagascar. By late on December 30, MFR classified it as a tropical disturbance. The system quickly intensified while moving westward, becoming a strong tropical storm before hitting northeastern Mozambique on December 31. Delfina weakened while moving inland, and it was no longer classifiable as a tropical cyclone by January 1.<ref name="dgp"/><ref name="dtrack">{{fr icon}} {{cite report|publisher=Météo-France|title=Track for Severe Tropical Storm Delfina|accessdate=2012-12-03|url=http://www.meteo.fr/temps/domtom/La_Reunion/trajGP20022003/data/06_table.html}}</ref> However, its remnants moved across the country and into [[Malawi]], later looping around and crossing back over Mozambique.<ref name="atcr"/> When the remnants reached the Mozambique Channel, they were reclassified as Tropical Disturbance 07, which moved southward over waters. It re-intensified into a tropical storm on January 8 before weakening the next day, becoming extratropical. The remnants persisted for several days, dissipating on January 14.<ref name="jgp">{{cite web|publisher=Padgett, Gary|title=Monthly Global Tropical Cyclone Summary January 203|accessdate=2013-04-30|url=http://australiasevereweather.com/cyclones/2003/summ0301.htm}}</ref><ref>{{cite report|author=Knapp, K. R.|author2=M. C. Kruk|author3=D. H. Levinson|author4=H. J. Diamond|author5=C. J. Neumann|year=2010|work=The International Best Track Archive for Climate Stewardship (IBTrACS): Unifying tropical cyclone best track data|title=2003 Delfina (2002364S16045)|publisher=Bulletin of the American Meteorological Society|accessdate=2013-04-30|url=http://storm5.atms.unca.edu/browse-ibtracs/browseIbtracs.php?name=v03r02-2002364S16045}}</ref> |
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In both Mozambique and Malawi, Delfina dropped heavy rainfall that caused flooding.<ref name="dgp"/> In the former country, over 18,000 houses were severely damaged or destroyed, leaving thousands homeless.<ref name="ifrc16">{{cite report|agency=International Federation of Red Cross and Red Crescent Societies|publisher=ReliefWeb|date=2003-01-16|title=Mozambique Floods Information Bulletin No. 2|accessdate=2012-12-10|url=http://reliefweb.int/report/mozambique/mozambique-floods-information-bulletin-no-2}}</ref> The storm damaged roads and bridges, which disrupted relief efforts in the aftermath,<ref>{{cite news|agency=[[IRIN]]|date=2003-03-06|title=Mozambique: 23,000 people affected by cyclone|publisher=ReliefWeb|accessdate=2012-12-05|url=http://reliefweb.int/report/mozambique/mozambique-23000-people-affected-cyclone}}</ref><ref name="cho">{{cite news|author= |
In both Mozambique and Malawi, Delfina dropped heavy rainfall that caused flooding.<ref name="dgp"/> In the former country, over 18,000 houses were severely damaged or destroyed, leaving thousands homeless.<ref name="ifrc16">{{cite report|agency=International Federation of Red Cross and Red Crescent Societies|publisher=ReliefWeb|date=2003-01-16|title=Mozambique Floods Information Bulletin No. 2|accessdate=2012-12-10|url=http://reliefweb.int/report/mozambique/mozambique-floods-information-bulletin-no-2}}</ref> The storm damaged roads and bridges, which disrupted relief efforts in the aftermath,<ref>{{cite news|agency=[[IRIN]]|date=2003-03-06|title=Mozambique: 23,000 people affected by cyclone|publisher=ReliefWeb|accessdate=2012-12-05|url=http://reliefweb.int/report/mozambique/mozambique-23000-people-affected-cyclone}}</ref><ref name="cho">{{cite news|author=Mangwiro, Charles|date=2003-01-27|agency=Reuters|title=Cholera outbreak kills 12 in flood-hit Mozambique|publisher=ReliefWeb|accessdate=2012-12-06|url=http://reliefweb.int/report/mozambique/cholera-outbreak-kills-12-flood-hit-mozambique}}</ref> and floods destroyed widespread areas of crops in the midst of an ongoing food shortage.<ref name="ifrc16"/> Lingering flooding caused an outbreak of [[cholera]] and [[malaria]] in Mozambique,<ref name="cho"/><ref name="mal">{{cite news|agency=Agence France-Presse|date=2003-01-25|title=Malaria kills 45 in northern Mozambique: radio|publisher=ReliefWeb|accessdate=2012-12-06|url=http://reliefweb.int/report/mozambique/malaria-kills-45-northern-mozambique-radio}}</ref> and 47 people were killed by Delfina.<ref name="rw37">{{cite news|agency=Reuters|publisher=ReliefWeb|date=2003-03-07|title=Cyclone claims 11 lives in Mozambique|accessdate=2012-12-05|url=http://reliefweb.int/report/mozambique/cyclone-claims-11-lives-mozambique}}</ref> In Malawi, flooding was not widespread,<ref name="ifrc15">{{cite report|agency=International Federation of Red Cross and Red Crescent Societies|title=Food and shelter for Malawi flood victims|date=2003-01-15|accessdate=2012-12-11|url=http://reliefweb.int/report/malawi/food-and-shelter-malawi-flood-victims}}</ref> although the storm destroyed about 3,600 houses.<ref name="wfp">{{cite report|agency=World Food Programme|date=2003-01-24|title=WFP Emergency Report No. 04 of 2003|publisher=ReliefWeb|accessdate=2012-12-10|url=http://reliefweb.int/report/afghanistan/wfp-emergency-report-no-04-2003}}</ref> Delfina killed eight people in the country.<ref name="dgp"/> Only two months after the storm struck, however, [[Cyclone Japhet]] left damage and deaths in many of the same areas that Delfina affected.<ref name="rw37"/> |
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On February 5, MFR began tracking a tropical disturbance to the east of Madagascar's northern coast. The system moved to the southwest before turning to the north on February 7.<ref name="gbt">{{cite report|author=Knapp, K. R.|author2=M. C. Kruk|author3=D. H. Levinson|author4=H. J. Diamond|author5=C. J. Neumann|year=2010|work=The International Best Track Archive for Climate Stewardship (IBTrACS): Unifying tropical cyclone best track data|title=2003 Gerry (2003037S12061)|publisher=Bulletin of the American Meteorological Society|accessdate=2013-05-03|url=http://storm5.atms.unca.edu/browse-ibtracs/browseIbtracs.php?name=v03r02-2003037S12061}}</ref> By that day, the system had persistent convection around a weak circulation, located in an area of low wind shear. On February 8, the JTWC initiated advisories on Tropical Cyclone 16S, although initially the circulation was broad and exposed from the thunderstorms. The next day, MFR upgraded the depression to tropical storm status, and the Meteorological Services of Mauritius named the system Gerry. The storm turned to the south toward Mauritius and steadily intensified.<ref name="fgp">{{cite web|author= |
On February 5, MFR began tracking a tropical disturbance to the east of Madagascar's northern coast. The system moved to the southwest before turning to the north on February 7.<ref name="gbt">{{cite report|author=Knapp, K. R.|author2=M. C. Kruk|author3=D. H. Levinson|author4=H. J. Diamond|author5=C. J. Neumann|year=2010|work=The International Best Track Archive for Climate Stewardship (IBTrACS): Unifying tropical cyclone best track data|title=2003 Gerry (2003037S12061)|publisher=Bulletin of the American Meteorological Society|accessdate=2013-05-03|url=http://storm5.atms.unca.edu/browse-ibtracs/browseIbtracs.php?name=v03r02-2003037S12061}}</ref> By that day, the system had persistent convection around a weak circulation, located in an area of low wind shear. On February 8, the JTWC initiated advisories on Tropical Cyclone 16S, although initially the circulation was broad and exposed from the thunderstorms. The next day, MFR upgraded the depression to tropical storm status, and the Meteorological Services of Mauritius named the system Gerry. The storm turned to the south toward Mauritius and steadily intensified.<ref name="fgp">{{cite web|author=Padgett, Gary|title=Monthly Global Tropical Cyclone Summary February 2003|accessdate=2013-05-03|url=http://www.australiansevereweather.com/cyclones/2003/summ0302.htm}}</ref> On February 12, the JTWC upgraded Gerry to the equivalent of a minimal hurricane, and shortly thereafter MFR upgraded the storm to a tropical cyclone.<ref name="gbt"/> Around that time, Gerry began undergoing [[rapid deepening]], becoming an intense tropical cyclone early on February 13 while developing a well-defined eye and outflow. That day, the cyclone passed about 120 km (75 mi) east of Mauritius.<ref name="fgp"/> At that time, the JTWC estimated peak 1 minute winds of 195 km/h (120 mph), and MFR estimated peak 10 minute winds of 165 km/h (105 mph).<ref name="gbt"/> Subsequently, Gerry began weakening due to increasing wind shear, with the eye becoming disorganized. Later, the convection separated from the deepest convection,<ref name="fgp"/> and the cyclone weakened to tropical storm status on February 14.<ref name="gbt"/> The next day, JTWC discontinued advisories, and on February 16 MFR declared Jerry extratropical.<ref name="fgp"/> The remnants dissipated two days later.<ref name="gbt"/> |
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Early in its duration, Gerry passed just west of [[Tromelin Island]], producing tropical storm force winds and gusts to 111 km/h (69 mph). The cyclone originally threatened to strike Mauritius directly, but due to a more east-southeasterly motion, Gerry passed more to the east.<ref name="fgp"/> The storm forced the closure of [[Sir Seewoosagur Ramgoolam International Airport]],<ref>{{cite news|agency=Panapress|date=2003-02-13|title=Cyclone 'Gerry' leaves one dead in Mauritius|accessdate=2013-05-03|url=http://www.panapress.com/Cyclone--Gerry--leaves-one-dead-in-Mauritius--13-472638-17-lang2-index.html}}</ref> along with schools and government offices.<ref>{{cite news|newspaper=The Vancouver Sun|title=Earthweek: A Diary of the Planet|date=2003-02-15}} (accessed via Lexis Nexis on 2013-05-03</ref> Wind gusts on Mauritius reached 144 km/h (90 mph). Gerry dropped heavy rainfall, peaking at {{convert|139.2|mm|in|abbr=on}} at [[Mare aux Vacoas]], and it produced high waves along the northern coast. One person was killed who was electrocuted during the storm's passage.<ref name="fgp"/> |
Early in its duration, Gerry passed just west of [[Tromelin Island]], producing tropical storm force winds and gusts to 111 km/h (69 mph). The cyclone originally threatened to strike Mauritius directly, but due to a more east-southeasterly motion, Gerry passed more to the east.<ref name="fgp"/> The storm forced the closure of [[Sir Seewoosagur Ramgoolam International Airport]],<ref>{{cite news|agency=Panapress|date=2003-02-13|title=Cyclone 'Gerry' leaves one dead in Mauritius|accessdate=2013-05-03|url=http://www.panapress.com/Cyclone--Gerry--leaves-one-dead-in-Mauritius--13-472638-17-lang2-index.html}}</ref> along with schools and government offices.<ref>{{cite news|newspaper=The Vancouver Sun|title=Earthweek: A Diary of the Planet|date=2003-02-15}} (accessed via Lexis Nexis on 2013-05-03</ref> Wind gusts on Mauritius reached 144 km/h (90 mph). Gerry dropped heavy rainfall, peaking at {{convert|139.2|mm|in|abbr=on}} at [[Mare aux Vacoas]], and it produced high waves along the northern coast. One person was killed who was electrocuted during the storm's passage.<ref name="fgp"/> |
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Around the same time that Tropical Storm Gerry was developing, another area of convection to its east was organizing.<ref name="fgp"/> On February 7, the system became a tropical disturbance, and initially moved to the north.<ref name="hbt">{{cite report|author=Knapp, K. R.|author2=M. C. Kruk|author3=D. H. Levinson|author4=H. J. Diamond|author5=C. J. Neumann|year=2010|work=The International Best Track Archive for Climate Stewardship (IBTrACS): Unifying tropical cyclone best track data|title=2003 Hape (2003039S15066)|publisher=Bulletin of the American Meteorological Society|accessdate=2013-05-03|url=http://storm5.atms.unca.edu/browse-ibtracs/browseIbtracs.php?name=v03r02-2003039S15066}}</ref> Operationally, MFR first began issuing advisories on February 9 for Tropical Disturbance 11, when the system had a small center and accompanying convection. By that time, the disturbance had turned to the south, and favorable conditions allowed for gradual development.<ref name="fgp"/> MFR upgraded the system to tropical storm status late on February 9,<ref name="hbt"/> although the system was named Hape until 36 hours later. On February 10, the JTWC initiated advisories on Tropical Cyclone 17S. An eye developed on February 11, suggesting quick intensification.<ref name="fgp"/> |
Around the same time that Tropical Storm Gerry was developing, another area of convection to its east was organizing.<ref name="fgp"/> On February 7, the system became a tropical disturbance, and initially moved to the north.<ref name="hbt">{{cite report|author=Knapp, K. R.|author2=M. C. Kruk|author3=D. H. Levinson|author4=H. J. Diamond|author5=C. J. Neumann|year=2010|work=The International Best Track Archive for Climate Stewardship (IBTrACS): Unifying tropical cyclone best track data|title=2003 Hape (2003039S15066)|publisher=Bulletin of the American Meteorological Society|accessdate=2013-05-03|url=http://storm5.atms.unca.edu/browse-ibtracs/browseIbtracs.php?name=v03r02-2003039S15066}}</ref> Operationally, MFR first began issuing advisories on February 9 for Tropical Disturbance 11, when the system had a small center and accompanying convection. By that time, the disturbance had turned to the south, and favorable conditions allowed for gradual development.<ref name="fgp"/> MFR upgraded the system to tropical storm status late on February 9,<ref name="hbt"/> although the system was not named Hape until 36 hours later. On February 10, the JTWC initiated advisories on Tropical Cyclone 17S. An eye developed on February 11, suggesting quick intensification.<ref name="fgp"/> At 1800 UTC that day, the JTWC and MFR upgraded Hape to the equivalent of a minimal hurricane and to tropical cyclone status, respectively.<ref name="hbt"/> By that time, the cyclone had turned to the east-northeast due to a weakness in a ridge to the north.<ref name="fgp"/> MFR estimated that Hape reached peak 10–minute winds of 150 km/h (90 mph) on February 12, and the next day the JTWC estimated 1–minute winds of 165 km/h (105 mph). Later, the storm weakened, and it turned to the southeast when the ridge re-intensified. Outflow decreased due to [[Fujiwhara effect|interaction]] with Cyclone Gerry to the west,<ref name="fgp"/> and Hape weakened to tropical storm status on February 13.<ref name="hbt"/> On February 15, the JTWC discontinued advisories once the circulation was exposed from the deep convection. The next day, MFR followed suit after the circulation dissipated.<ref name="fgp"/> |
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{{main|Cyclone Japhet}} |
{{main|Cyclone Japhet}} |
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Cyclone Japhet developed on February 25 near the southwest coast of Madagascar, and initially moved to the northwest before turning to the southwest. With favorable conditions for development, Japhet quickly intensified in the Mozambique Channel, reaching maximum winds of 175 km/h (110 mph), sustained over 10 minutes. This made it an intense tropical cyclone, only the sixth to occur in the channel in 24 years. After stalling briefly, the cyclone turned to the northwest, weakening slightly before striking Mozambique just south of [[Vilankulo]] on March 2. Japhet slowly weakened while progressing inland, dissipating over [[Zambia]] on March 6.<ref name="atcr">{{cite report|author=Joint Typhoon Warning Center|page=644|title=2003 Annual Tropical Cyclone Report|date=2005-04-10|accessdate=2012-08-17|url=http://www.usno.navy.mil/NOOC/nmfc-ph/RSS/jtwc/atcr/2003atcr.pdf|format=PDF}}</ref><ref name="fgp">{{cite web|author= |
Cyclone Japhet developed on February 25 near the southwest coast of Madagascar, and initially moved to the northwest before turning to the southwest. With favorable conditions for development, Japhet quickly intensified in the Mozambique Channel, reaching maximum winds of 175 km/h (110 mph), sustained over 10 minutes. This made it an intense tropical cyclone, only the sixth to occur in the channel in 24 years. After stalling briefly, the cyclone turned to the northwest, weakening slightly before striking Mozambique just south of [[Vilankulo]] on March 2. Japhet slowly weakened while progressing inland, dissipating over [[Zambia]] on March 6.<ref name="atcr">{{cite report|author=Joint Typhoon Warning Center|page=644|title=2003 Annual Tropical Cyclone Report|date=2005-04-10|accessdate=2012-08-17|url=http://www.usno.navy.mil/NOOC/nmfc-ph/RSS/jtwc/atcr/2003atcr.pdf|format=PDF}}</ref><ref name="fgp">{{cite web|author=Padgett, Gary|year=2003|title=Monthly Global Tropical Cyclone Summary February 2003|accessdate=2012-08-17|url=http://www.australiasevereweather.com/cyclones/2003/summ0302.htm}}</ref> |
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Along its path, Japhet dropped heavy rainfall that caused widespread river flooding. The rains occurred after an extended drought, although excessive precipitation caused heavy crop damage, notably around where the storm moved ashore. In two provinces in Mozambique, the cyclone damaged or destroyed 25,000 houses, leaving at least 23,000 people homeless.<ref name="reut35">{{cite news|agency=Reuters|date=2003-03-05|title=170 kph cyclone displaces 23,000 in Mozambique|publisher=ReliefWeb|accessdate=2012-08-19|url=http://reliefweb.int/report/mozambique/170-kph-cyclone-displaces-23000-mozambique}}</ref> Flooding in Zambia caused rivers to rise in Mozambique several days after the storm's passage. There were 17 deaths in Mozambique.<ref name="an42">{{cite news|date=2003-04-02|agency=Africa News|title=Government Reports On Disasters |
Along its path, Japhet dropped heavy rainfall that caused widespread river flooding. The rains occurred after an extended drought, although excessive precipitation caused heavy crop damage, notably around where the storm moved ashore. In two provinces in Mozambique, the cyclone damaged or destroyed 25,000 houses, leaving at least 23,000 people homeless.<ref name="reut35">{{cite news|agency=Reuters|date=2003-03-05|title=170 kph cyclone displaces 23,000 in Mozambique|publisher=ReliefWeb|accessdate=2012-08-19|url=http://reliefweb.int/report/mozambique/170-kph-cyclone-displaces-23000-mozambique}}</ref> Flooding in Zambia caused rivers to rise in Mozambique several days after the storm's passage. There were 17 deaths in Mozambique.<ref name="an42">{{cite news|date=2003-04-02|agency=Africa News|title=Government Reports On Disasters}} (accessed via Lexis Nexis on 2012-08-22</ref> Further inland, remnant rainfall destroyed a bridge and several houses in Zimbabwe, killing eight people.<ref name="zim">{{cite news|agency=Africa News|date=2003-08-01|title=Zimbabwe; Elaborate Disaster Preparedness Plan Needed}} (accessed via Lexis Nexis on 2012-08-22</ref> |
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{{main|Cyclone Kalunde}} |
{{main|Cyclone Kalunde}} |
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Kalunde formed on March 3 from an area of convection southeast of Diego Garcia. The system slowly intensified while drifting to the west, becoming a moderate tropical storm on March 5. Its intensification rate increased as it began a steady southwest movement. Kalunde underwent [[rapid deepening]] and developed an eye, becoming a very intense tropical cyclone on March 8. Around that time, MFR estimated a minimum pressure of {{convert|910|mbar|inHg|abbr=on}} with winds of 215 km/h (135 mph), and the JTWC estimated peak winds of 260 km/h (160 mph); this made Kalunde the strongest cyclone of the year in the basin. It weakened after undergoing an [[eyewall replacement cycle]], and on March 12 Kalunde passed near [[Rodrigues]] island as a weakening cyclone. Around that time, the storm turned to the south, weakening to a tropical storm on March 14 before becoming extratropical the next day. The remnants of Kalunde dissipated on March 16.<ref name=CS>{{cite web|title=2003 |
Kalunde formed on March 3 from an area of convection southeast of Diego Garcia. The system slowly intensified while drifting to the west, becoming a moderate tropical storm on March 5. Its intensification rate increased as it began a steady southwest movement. Kalunde underwent [[rapid deepening]] and developed an eye, becoming a very intense tropical cyclone on March 8. Around that time, MFR estimated a minimum pressure of {{convert|910|mbar|inHg|abbr=on}} with winds of 215 km/h (135 mph), and the JTWC estimated peak winds of 260 km/h (160 mph); this made Kalunde the strongest cyclone of the year in the basin. It weakened after undergoing an [[eyewall replacement cycle]], and on March 12 Kalunde passed near [[Rodrigues]] island as a weakening cyclone. Around that time, the storm turned to the south, weakening to a tropical storm on March 14 before becoming extratropical the next day. The remnants of Kalunde dissipated on March 16.<ref name=CS>{{cite web|title=2003 Kalunde (2003062S10080)|url=http://storm5.atms.unca.edu/browse-ibtracs/browseIbtracs.php?name=v03r02-2003062S10080#source|publisher=Climate Stewardship|accessdate=April 18, 2013}}</ref><ref name=gpsummary>{{cite report|title=Monthly Global Tropical Cyclone Summary March 2003|url=http://www.australiansevereweather.com/cyclones/2003/summ0303.htm|publisher=Australian Severe Weather Index|accessdate=November 24, 2012|author=Padget, Gary}}</ref> |
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When the cyclone passed Rodrigues, it produced wind gusts estimated up to {{convert|210|km/h|mph|abbr=on}}, which caused an island-wide power outage.<ref name="KalundePANA1">{{fr icon}} {{cite web|publisher=Pan African News Agency|date=March 13, 2003|accessdate=November 15, 2012|title=Le cyclone Kalunde a atteint l'île Rodrigues mercredi soir|url=http://www.panapress.com/Le-cyclone-Kalunde-a-atteint-l-ile-Rodrigues-mercredi-soir--13-690342-17-lang4-index.html}}</ref><ref name="KalundeRC1">{{fr icon}} {{cite report|publisher=Croix-Rouge Française|year=2010|accessdate=November 15, 2012|title=11 / 12 Mars 2003 : l'île Rodrigues est dévastée par le cyclone Kalunde|url=http://piroi.croix-rouge.fr/kalunde.htm}}</ref> Many roads were washed out,<ref name="Kalunde1">{{fr icon}} {{cite report|publisher=Rodriques Region Assemby|date=April 4, 2003|title=Debate No. 6 of 2003|accessdate=November 24, 2012|url=http://www.gov.mu/portal/sites/rra_portal/rraassembly/pnq03_deb6.htm}}</ref> and about 80 percent of the drinking water was contaminated.<ref name="KalundeRC1"/> During the storm's three-day passage of the island, a total of {{convert|329.1|mm|in|abbr=on}} of rain fell.<ref name="KalundeAO1">{{fr icon}} {{cite web|publisher=Accueil Orange|date=March 2003|accessdate=November 15, 2012|title=Kalunde : Rodrigues meurtrie|url=http://reunion.orange.fr/news/archives/kalunde-rodrigues,508152.html}}</ref> A total of 1,600 homes were damaged, and total losses across the island amounted to $3.15 million (2003 USD, [[Euro|€]]3.4 million).<ref name="crf">{{fr icon}} {{cite web|publisher=Croix-Rouge Française|date=2003-03-20|accessdate=2012-11-25|title=Rodrigues ravagé par un cyclone|url=http://w3.ifrc.org/fr/docs/news/03/fn0603/2.asp}}</ref> |
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A large low-level circulation persisted off the southwest coast of Madagascar on April 6.<ref name="aprgp">{{cite web|author= |
A large low-level circulation persisted off the southwest coast of Madagascar on April 6.<ref name="aprgp">{{cite web|author=Hoarau, Karl|publisher=Padgett, Gary|year=2003|title=Monthly Global Tropical Cyclone Summary April 2003|accessdate=2013-04-25|url=http://australiasevereweather.com/cyclones/2003/summ0304.htm}}</ref> On April 8, it became a [[subtropical cyclone|subtropical depression]] according to MFR, and moved to the southwest before turning sharply to the southeast.<ref name="lbt">{{cite report|author=Knapp, K. R.|author2=M. C. Kruk|author3=D. H. Levinson|author4=H. J. Diamond|author5=C. J. Neumann|year=2010|work=The International Best Track Archive for Climate Stewardship (IBTrACS): Unifying tropical cyclone best track data|title=2003 Luma (2003098S23041)|publisher=Bulletin of the American Meteorological Society|accessdate=2013-04-14|url=http://storm5.atms.unca.edu/browse-ibtracs/browseIbtracs.php?name=v03r02-2003098S23041}}</ref> That day, the JTWC briefly assessed a fair potential for development. The circulation became exposed on April 9, but when it began quickly intensifying the next day, MFR initiated advisories on Subtropical Storm Luma. By that time, the JTWC classified the system as extratropical; however, the system developed convection near the center and became more of a tropical cyclone. On April 11, Luma developed an eye in the center of the thunderstorms,<ref name="aprgp"/> prompting MFR to upgrade the storm to peak winds of 130 km/h (80 mph).<ref name="lbt"/> At that time, the storm was in an area of weak wind shear, although increasing shear caused rapid weakening and for the eye to dissipate. Early on April 12, Luma became extratropical as it merged with an approaching [[cold front]].<ref name="aprgp"/> |
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{{main|Cyclone Manou}} |
{{main|Cyclone Manou}} |
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Late in the season in April, an area of convection formed southwest of Diego Garcia. It gradually organized, and there was a companion system to the west that also showed signs of development. The eastern system was declared Tropical Disturbance 16 on May 2, and with a [[ridge (meteorology)|ridge]] to the southeast it moved generally to the southwest. Early in its duration, the system affected [[St Brandon]] and [[Mauritius]] with gusty winds. On May 4 it intensified into Tropical Storm Manou on May 4. After an initial strengthening phase, the storm weakened but later re-intensified as it approached Madagascar. Manou developed a well-defined [[eye (cyclone)|eye]] and reached peak winds only 19 km (12 mi) from the eastern Madagascar coastline.<ref name="gp"/> It reached tropical cyclone status, at the time only one of six in the month since 1968.<ref name="wmo"/> For about 12 hours, the cyclone stalled before turning to the south and weakening. After becoming [[extratropical cyclone|extratropical]] on May 10, Manou dissipated three days later.<ref name="gp">{{cite web|author= |
Late in the season in April, an area of convection formed southwest of Diego Garcia. It gradually organized, and there was a companion system to the west that also showed signs of development. The eastern system was declared Tropical Disturbance 16 on May 2, and with a [[ridge (meteorology)|ridge]] to the southeast it moved generally to the southwest. Early in its duration, the system affected [[St Brandon]] and [[Mauritius]] with gusty winds. On May 4 it intensified into Tropical Storm Manou on May 4. After an initial strengthening phase, the storm weakened but later re-intensified as it approached Madagascar. Manou developed a well-defined [[eye (cyclone)|eye]] and reached peak winds only 19 km (12 mi) from the eastern Madagascar coastline.<ref name="gp"/> It reached tropical cyclone status, at the time only one of six in the month since 1968.<ref name="wmo"/> For about 12 hours, the cyclone stalled before turning to the south and weakening. After becoming [[extratropical cyclone|extratropical]] on May 10, Manou dissipated three days later.<ref name="gp">{{cite web|author=Padgett, Gary|title=Monthly Global Tropical Cyclone Summary May 2003|date=2006-12-27|accessdate=2013-04-14|url=http://www.australiasevereweather.com/cyclones/2003/summ0305.htm}}</ref><ref name="ibt">{{cite report|author=Knapp, K. R.|author2=M. C. Kruk|author3=D. H. Levinson|author4=H. J. Diamond|author5=C. J. Neumann|year=2010|work=The International Best Track Archive for Climate Stewardship (IBTrACS): Unifying tropical cyclone best track data|title=2003 Manou (2003122S11065)|publisher=Bulletin of the American Meteorological Society|accessdate=2013-04-14|url=http://storm5.atms.unca.edu/browse-ibtracs/browseIbtracs.php?name=v03r02-2003122S11065}}</ref> |
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Manou struck Madagascar a year after [[Cyclone Kesiny]] hit the country in May 2002, representing the first known occurrence of May tropical cyclone impacts in consecutive years.<ref name="wmo"/> When Manou struck Madagascar, it produced gusts as strong as 211 km/h (131 mph) and heavy rainfall reaching {{convert|227|mm|in|abbr=on}} in a 15 hour period, both at [[Vatomandry]].<ref name="gp"/> Damage in the country was heaviest there, where 85% of buildings were destroyed and 23 people were killed.<ref name="ocha1">{{cite report|author=United Nations Office for the Coordination of Humanitarian Affairs|title=Madagascar - Tropical Cyclone Manou OCHA Situation Report No. 1|publisher=ReliefWeb|date=2003-05-14|accessdate=2013-04-18|url=http://reliefweb.int/report/madagascar/madagascar-tropical-cyclone-manou-ocha-situation-report-no-1}}</ref> Manou destroyed about 24,500 houses nationwide, leaving 114,480 people homeless.<ref name="ocha2">{{cite report|author=United Nations Office for the Coordination of Humanitarian Affairs|title=Madagascar - Tropical Cyclone Manou OCHA Situation Report No. 2|publisher=ReliefWeb|date=2003-05-16|accessdate=2013-04-19|url=http://reliefweb.int/report/madagascar/madagascar-tropical-cyclone-manou-ocha-situation-report-no-2}}</ref><ref>{{cite report|author=World Food Programme|date=2003-05-23|title=WFP Emergency Report No. 21 of 2003|publisher=ReliefWeb|accessdate=2013-04-19|url=http://reliefweb.int/report/afghanistan/wfp-emergency-report-no-21-2003}}</ref> The storm destroyed large areas of crops and disrupted transportation, including damaging the road between Vatomandry and [[Brickaville]].<ref name="irin513">{{cite report|agency=IRIN|title=Madagascar: Cyclone kills at least 20|date=2003-05-13|publisher=ReliefWeb|accessdate=2013-04-18|url=http://reliefweb.int/report/madagascar/madagascar-cyclone-kills-least-20}}</ref><ref name="irin1">{{cite report|agency=IRIN|title=Madagascar: Cyclone Manou batters eastern provinces|date=2003-05-09|publisher=ReliefWeb|accessdate=2013-04-13|url=http://reliefweb.int/report/madagascar/madagascar-cyclone-manou-batters-eastern-provinces}}</ref> Manou injured 85 and killed 89 people throughout Madagascar.<ref name="pan">{{cite news|agency=Pan African News Agency|title=Madagascar's cyclone death toll reaches 70|publisher=ReliefWeb|date=2003-05-19|accessdate=2013-04-19|url=http://reliefweb.int/report/madagascar/madagascars-cyclone-death-toll-reaches-70}}</ref><ref name="emdat">{{cite web|author=Université Catholique de Louvain|year=2007|title=EM-DAT: The OFDA/CRED International Disaster Database for North America|accessdate=2007-09-07|url=http://www.em-dat.net/}}</ref> |
Manou struck Madagascar a year after [[Cyclone Kesiny]] hit the country in May 2002, representing the first known occurrence of May tropical cyclone impacts in consecutive years.<ref name="wmo"/> When Manou struck Madagascar, it produced gusts as strong as 211 km/h (131 mph) and heavy rainfall reaching {{convert|227|mm|in|abbr=on}} in a 15 hour period, both at [[Vatomandry]].<ref name="gp"/> Damage in the country was heaviest there, where 85% of buildings were destroyed and 23 people were killed.<ref name="ocha1">{{cite report|author=United Nations Office for the Coordination of Humanitarian Affairs|title=Madagascar - Tropical Cyclone Manou OCHA Situation Report No. 1|publisher=ReliefWeb|date=2003-05-14|accessdate=2013-04-18|url=http://reliefweb.int/report/madagascar/madagascar-tropical-cyclone-manou-ocha-situation-report-no-1}}</ref> Manou destroyed about 24,500 houses nationwide, leaving 114,480 people homeless.<ref name="ocha2">{{cite report|author=United Nations Office for the Coordination of Humanitarian Affairs|title=Madagascar - Tropical Cyclone Manou OCHA Situation Report No. 2|publisher=ReliefWeb|date=2003-05-16|accessdate=2013-04-19|url=http://reliefweb.int/report/madagascar/madagascar-tropical-cyclone-manou-ocha-situation-report-no-2}}</ref><ref>{{cite report|author=World Food Programme|date=2003-05-23|title=WFP Emergency Report No. 21 of 2003|publisher=ReliefWeb|accessdate=2013-04-19|url=http://reliefweb.int/report/afghanistan/wfp-emergency-report-no-21-2003}}</ref> The storm destroyed large areas of crops and disrupted transportation, including damaging the road between Vatomandry and [[Brickaville]].<ref name="irin513">{{cite report|agency=IRIN|title=Madagascar: Cyclone kills at least 20|date=2003-05-13|publisher=ReliefWeb|accessdate=2013-04-18|url=http://reliefweb.int/report/madagascar/madagascar-cyclone-kills-least-20}}</ref><ref name="irin1">{{cite report|agency=IRIN|title=Madagascar: Cyclone Manou batters eastern provinces|date=2003-05-09|publisher=ReliefWeb|accessdate=2013-04-13|url=http://reliefweb.int/report/madagascar/madagascar-cyclone-manou-batters-eastern-provinces}}</ref> Manou injured 85 and killed 89 people throughout Madagascar.<ref name="pan">{{cite news|agency=Pan African News Agency|title=Madagascar's cyclone death toll reaches 70|publisher=ReliefWeb|date=2003-05-19|accessdate=2013-04-19|url=http://reliefweb.int/report/madagascar/madagascars-cyclone-death-toll-reaches-70}}</ref><ref name="emdat">{{cite web|author=Université Catholique de Louvain|year=2007|title=EM-DAT: The OFDA/CRED International Disaster Database for North America|accessdate=2007-09-07|url=http://www.em-dat.net/}}</ref> |
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| '''{{Sort|12|Isha}}''' || {{Sort|0211|February 9 – 15}} || bgcolor=#{{storm colour|storm}}|{{Sort|2|Moderate Tropical Storm}} || bgcolor=#{{storm colour|storm}}|{{Sort|65|65 km/h (40 mph)}} || bgcolor=#{{storm colour|storm}}|{{Sort|995|995 hPa (29.39 inHg)}} || None || align="right"|{{ntsh|0}} None ||align="right"|{{ntsh|0}} None ||<ref name="fgp"/> |
| '''{{Sort|12|Isha}}''' || {{Sort|0211|February 9 – 15}} || bgcolor=#{{storm colour|storm}}|{{Sort|2|Moderate Tropical Storm}} || bgcolor=#{{storm colour|storm}}|{{Sort|65|65 km/h (40 mph)}} || bgcolor=#{{storm colour|storm}}|{{Sort|995|995 hPa (29.39 inHg)}} || None || align="right"|{{ntsh|0}} None ||align="right"|{{ntsh|0}} None ||<ref name="fgp"/> |
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| '''{{Sort|13|[[Cyclone Japhet|Japhet]]}}''' || {{Sort|0225|February 25 – March 5}} || bgcolor=#{{storm colour|ITC}}|{{Sort|5|Intense Tropical Cyclone}} || bgcolor=#{{storm colour|ITC}}|{{Sort|175|175 km/h (110 mph)}} || bgcolor=#{{storm colour|ITC}}|{{Sort|935|935 hPa (27.61 inHg)}} || Mozambique, Zambia, Zimbabwe || align="right"|{{ntsh|2}} Unknown ||align="right"|{{ntsh|25}} 25 ||<ref name="an42"/><ref |
| '''{{Sort|13|[[Cyclone Japhet|Japhet]]}}''' || {{Sort|0225|February 25 – March 5}} || bgcolor=#{{storm colour|ITC}}|{{Sort|5|Intense Tropical Cyclone}} || bgcolor=#{{storm colour|ITC}}|{{Sort|175|175 km/h (110 mph)}} || bgcolor=#{{storm colour|ITC}}|{{Sort|935|935 hPa (27.61 inHg)}} || Mozambique, Zambia, Zimbabwe || align="right"|{{ntsh|2}} Unknown ||align="right"|{{ntsh|25}} 25 ||<ref name="an42"/><ref name="zim"/> |
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| '''{{Sort|14|[[Cyclone Kalunde|Kalunde]]}}''' || {{Sort|0304|March 3 – 14}} || bgcolor=#{{storm colour|VITC}}|{{Sort|6|Very Intense Tropical Cyclone}} || bgcolor=#{{storm colour|VITC}}|{{Sort|215|215 km/h (135 mph)}} || bgcolor=#{{storm colour|VITC}}|{{Sort|910|910 hPa (26.87 inHg)}} || Rodrigues Island || align="right"|{{ntsp|3150000||$}} ||align="right"|{{ntsh|0}} None ||<ref name="crf"/> |
| '''{{Sort|14|[[Cyclone Kalunde|Kalunde]]}}''' || {{Sort|0304|March 3 – 14}} || bgcolor=#{{storm colour|VITC}}|{{Sort|6|Very Intense Tropical Cyclone}} || bgcolor=#{{storm colour|VITC}}|{{Sort|215|215 km/h (135 mph)}} || bgcolor=#{{storm colour|VITC}}|{{Sort|910|910 hPa (26.87 inHg)}} || Rodrigues Island || align="right"|{{ntsp|3150000||$}} ||align="right"|{{ntsh|0}} None ||<ref name="crf"/> |
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Revision as of 16:42, 27 May 2013
| 2002–03 South-West Indian Ocean cyclone season | |
|---|---|
 Season summary map | |
| Seasonal boundaries | |
| First system formed | September 4, 2002 |
| Last system dissipated | May 13, 2003 |
| Strongest storm | |
| Name | Kalunde |
| • Maximum winds | 215 km/h (130 mph) (10-minute sustained) |
| • Lowest pressure | 910 hPa (mbar) |
| Seasonal statistics | |
| Total disturbances | 15 |
| Total storms | 12, 1 unofficial, 1 subtropical |
| Tropical cyclones | 7 |
| Intense tropical cyclones | 3 |
| Total fatalities | 168 |
| Total damage | $3.16 million (2003 USD) |
| Related articles | |
The 2002-03 South-West Indian Ocean cyclone season was one of the longest lasting and the second-most active season in the South-West Indian ocean. Storms during the season impacted the Mascarene Islands, Seychelles, Madagascar, and countries in southeastern Africa. The season began early when an unnamed tropical storm struck Seychelles in September, becoming the most damaging storm there in 50 years. The next system, Atang, was the first named storm of the season, but was only a tropical depression; it was named due to the threat to an outer island of Mauritius. Atang later struck Tanzania in a climatologically unusual area in November, resulting in unconfirmed deaths of fishermen. The first named storm to reach tropical storm intensity was Boura, which brushed the Mascarene Islands with gusty winds and rainfall. In December, Cyclone Crytal threatened to strike Mauritius but instead veered eastward, and later, Tropical Storm Delfina lasted from late December through early January 2003. Delfina damaged or destroyed thousands of houses in Mozambique and Malawi, killing 54 people.
In January of 2003, Severe Tropical Storm Ebula continued the steady activity, forming in the eastern portion of the basin. Later, Tropical Storm Fari crossed southern Madagascar with heavy rains, causing flooding and mudslides that left 3,400 people homeless. In February, there were four simultaneous tropical cyclones in the Indian Ocean, three of which in the basin. Cyclone Gerry formed first and the farthest west, passing just east of Mauritius and killing one person there. Cyclone Hape formed shortly thereafter, and Tropical Storm Isha formed farther east, having originated from the Australian basin. Cyclone Japhet struck southern Mozambique and produced widespread flooding in southeastern Africa, killing 25 people. In March, Cyclone Kalunde was the strongest storm of the season, reaching 10–minute sustained winds of 215 km/h (135 mph). It struck Rodrigues while weakening, damaging 1,600 houses and causing an island-wide power outage. About a month later, a subtropical cyclone named Luma intensified southeast of Madagascar and developed an eye. Lastly, Cyclone Manou was only the sixth May tropical cyclones on record, making a rare landfall in southeastern Madagascar, killing 89 people and destroying thousands of houses.
Season summary
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Météo-France's meteorological office in Réunion (MFR) is the official Regional Specialized Meteorological Center for the South-West Indian Ocean, tracking all tropical cyclones from the east coast of Africa to 90º E. At the beginning of the season, the MFR moved the tropical cyclone year from August 1 to July 1.[1] The Joint Typhoon Warning Center (JTWC), which is a joint United States Navy – United States Air Force task force that issues tropical cyclone warnings for the region,[2] also issued advisories for storms during the season.[3]
During the season, MFR issued advisories on 16 systems, of which 13 intensified to reach tropical storm force winds, meaning conditions were generally favorable for tropical cyclogenesis. The 13 systems with tropical storm force winds is only one short of the most such storms since the beginning of satellite-tracking in the 1967–68 season,[4] set in the 1993–94 season.[5] This is four more than the average of nine named storms.[6] In this season, there were 24 days on which tropical cyclones were active, slightly above normal, but only one storm – Kalunde – remained at that intensity for more than three days. By contrast, there were 68 days in which a tropical storm was active in the basin, which is 15 days above normal. The season began early and ended late; only four seasons began earlier and four ended later than this season since the start of satellite-coverage in the basin.[4]
In addition to the named storms and an unnamed tropical storm in September, there was one non-developing tropical depression. On December 25, Tropical Depression 05 developed in the northeastern portion of the basin. It moved to the south and later southeast, crossing into the Australian region on December 27. A day later, the JTWC issued its last advisory.[7]
Storms
Tropical Storm 01
| Moderate tropical storm (MFR) | |
| Tropical storm (SSHWS) | |
  | |
| Duration | September 4 – September 8 |
|---|---|
| Peak intensity | 65 km/h (40 mph) (10-min); 1003 hPa (mbar) |
In late August, a weak low-level circulation persisted near Diego Garcia. It was associated with a trough near the equator, and initially remained disorganized due to high wind shear. The disturbance was located at a low latitude near the equator, and a ridge extending from the eastern coast of Africa imparted a general west-southwest movement.[8] The system was organized enough to be classified by MFR on September 4 at 2.5º S.[9] Subsequently, the system developed more convection as its circulation became better defined. Operationally, MFR began issuing warnings on September 5 on Tropical Disturbance 01, and the next day upgraded it to a tropical depression.[8] Post analysis from MFR indicated that the system reached peak winds of 65 km/h (40 mph) on September 6,[9] the same day that the Joint Typhoon Warning Center (JTWC) initiated advisories on it as Tropical Cyclone 01S. The storm developed banding features, but the thunderstorms were sheared away from the circulation. On September 7, the storm moved through Seychelles – an island nation in the southern Indian Ocean – before weakening. MFR discontinued advisories on September 8, and the JTWC followed suit the next day.[8]
While moving through Seychelles, the storm produced a microburst that last for two hours across several islands, producing wind gusts up to 130 km/h (81 mph) on Praslin. Heavy rainfall affected Praslin, La Digue, and particularly Mahé, which reported 327.1 mm (12.88 in) in a 24 hour period. Damage on Mahé was limited to landslides and some flooding. On Praslin, high winds damaged the roofs of over 50 houses and destroyed six homes, while the airport was also damaged. The winds damaged 50 power lines, causing an island-wide power outage. High winds also downed about 30,000 trees,[10] which blocked roads but were quickly removed.[11] Due to widespread tree damage, Cousin Island – a nature preserve – was closed for about two weeks, accounting for about $50,000 (2002 USD, SR250,000 rupees) in damage.[10] Nationwide, the storm left 375 families homeless and damaged crop fields,[8] becoming the most damaging in the country in 50 years.[10]
Tropical Depression Atang
| Tropical depression (MFR) | |
| Tropical storm (SSHWS) | |
  | |
| Duration | November 4 – November 13 |
|---|---|
| Peak intensity | 55 km/h (35 mph) (10-min); 997 hPa (mbar) |
Convection persisted near a broad circulation on November 3 to the west of Diego Garcia. The system moved westward and organized due to generally favorable conditions. MFR classified it as Tropical Disturbance 02 on November 4. Two days later, the agency upgraded it to Tropical Depression 2, and shortly thereafter the JTWC initiated advisories on Tropical Cyclone 02S. At that time, the storm was moving to the southwest toward the Mauritius outer island of Agaléga, developing improved outflow. To emphasize the threat, the Meteorological Service of Mauritius named the system Atang, despite it only being a tropical depression. Late on November 6, JTWC estimated peak winds of 85 km/h (50 mph), around the same time that Atang began a slow motion to the southwest. The next day, the depression resumed a westward motion and became disorganized, with several circulations, and the JTWC and MFR both discontinued advisories. The remnants of Atang again turned to the southwest and re-intensified, prompting JTWC and MFR to re-issue advisories on November 9. By that time, the outflow improved, although it maintained multiple circulations. Atang passed near the north coast of Madagascar on November 10 after turning to the west, and that day the JTWC again discontinued advisories. After another period of re-organization, the agency again re-issued advisories on Atang on November 11 over the Mozambique Channel. The next day, the system moved inland in southeastern Tanzania, and dissipated shortly thereafter.[12]
In northern Mozambique, Atang produced moderate but beneficial rainfall in Cabo Delgado Province.[13][14] The landfall area does not usually experience tropical cyclones, and damage in Mozambique was minimal.[15] In Tanzania, there were unofficial reports that Atang killed several fishermen and caused heavy rainfall with wind gusts to 148 km/h (92 mph).[12]
Tropical Cyclone Boura
| Tropical cyclone (MFR) | |
| Category 1 tropical cyclone (SSHWS) | |
  | |
| Duration | November 14 – November 27 |
|---|---|
| Peak intensity | 130 km/h (80 mph) (10-min); 965 hPa (mbar) |
A strong area of winds near the equator developed an area of convection on November 14 to the east-northeast of Diego Garcia. It quickly developed outflow and a distinct circulation,[12] becoming a tropical depression late on November 14.[16] Early on November 15, MFR upgraded the system to Tropical Storm Boura, and later that day the JTWC initiated advisories on Tropical Cyclone 03S. With a ridge to the southeast, the storm moved quickly southwestward. Easterly wind shear prevented significant intensification until the circulation became established beneath the convection.[12] On November 17, Boura intensified to reach 10–minute winds of 120 km/h (75 mph),[16] making it a tropical cyclone. The JTWC upgraded Boura to the same intensity that day but in 1–minute winds, or the equivalent of a minimal hurricane.[12] The cyclone intensified slightly further to peak winds of 130 km/h (80 mph).[16]
Boura maintained its peak winds for about 18 hours,[16] during which wind shear began to increase. The cyclone weakened as it curved more to the west, a change due to a ridge to the south. The JTWC estimated that Boura maintained peak winds of 140 km/h (85 mph). Initially, the storm retained good outflow and convection,[12] and Boura passed just north of St. Brandon on November 19, producing 54.5 mm (2.15 in) of rainfall and wind gusts of 106 km/h (66 mph).[12][16] While the storm turned to the west and northwest, it interacted with the ridge to the south to produce wind gusts of 118 km/h (74 mph) and 111 km/h (69 mph) on Mauritius and Réunion, respectively. The convection gradually diminished, and on November 22 Boura weakened to tropical depression status while the JTWC discontinued advisories. The circulation continued to the northwest, devoid of convection.[12] After turning to the northeast on November 25, Boura dissipated a day later north of Madagascar.[16]
Tropical Cyclone Crystal
| Tropical cyclone (MFR) | |
| Category 2 tropical cyclone (SSHWS) | |
  | |
| Duration | December 21 – December 29 |
|---|---|
| Peak intensity | 150 km/h (90 mph) (10-min); 955 hPa (mbar) |
For several days in mid-December, tropical cyclone forecast models anticipated a storm to form to the southwest of Diego Garcia, which was proven true when an area of convection formed in that area,[7] becoming a tropical disturbance on December 21,[17] the fourth of the season. On December 23, MFR upgraded the disturbance to a tropical depression, and later that day to Tropical Storm Crystal. The storm moved southwestward toward Mauritius due to a ridge to the southeast.[7] Strengthening was gradual, and the JTWC upgraded Crystal to the equivalent of a minimal hurricane late on December 24.[17] The next day, an eye developed, although dry air initially prevented much further intensification.[7] MFR upgraded Crystal to tropical cyclone status on December 26,[17] and that day the cyclone passed just east of St. Brandon. Subsequently, Crystal intensified quickly after the eye became clearer,[7] reaching peak winds of 150 km/h (90 mph) on December 27.[17] Around that time, the storm passed east of Mauritius as it turned to the south while rounding the ridge.[7] After maintaining peak winds for about 18 hours, Crystal weakened,[17] gradually undergoing extratropical transition. The convection diminished over the center,[7] and Crystal weakened to tropical storm status on December 28.[17] The next day, the JTWC and MFR discontinued advisories, labeling the storm as extratropical.[7] The remnants continued to the southeast, dissipating on January 3 after crossing into the Australian region.[17]
While passing just east of St. Brandon, Crystal produced wind gusts of 91 km/h (56 mph). The storm initially threatened to strike Mauritius, but effects were minimal due to the island being on the dry southwest quadrant of the storm. Crystal produced wind gusts of 91 km/h (56 mph). Rainfall reached 58.8 mm (2.31 in), although minimal precipitation occurred in northern Mauritius.[7]
Severe Tropical Storm Delfina
| Severe tropical storm (MFR) | |
| Tropical storm (SSHWS) | |
.jpg)  | |
| Duration | December 30 – January 9 |
|---|---|
| Peak intensity | 95 km/h (60 mph) (10-min); 985 hPa (mbar) |
In late December, a tropical disturbance rapidly formed off the northwest coast of Madagascar. By late on December 30, MFR classified it as a tropical disturbance. The system quickly intensified while moving westward, becoming a strong tropical storm before hitting northeastern Mozambique on December 31. Delfina weakened while moving inland, and it was no longer classifiable as a tropical cyclone by January 1.[7][18] However, its remnants moved across the country and into Malawi, later looping around and crossing back over Mozambique.[3] When the remnants reached the Mozambique Channel, they were reclassified as Tropical Disturbance 07, which moved southward over waters. It re-intensified into a tropical storm on January 8 before weakening the next day, becoming extratropical. The remnants persisted for several days, dissipating on January 14.[19][20]
In both Mozambique and Malawi, Delfina dropped heavy rainfall that caused flooding.[7] In the former country, over 18,000 houses were severely damaged or destroyed, leaving thousands homeless.[21] The storm damaged roads and bridges, which disrupted relief efforts in the aftermath,[22][23] and floods destroyed widespread areas of crops in the midst of an ongoing food shortage.[21] Lingering flooding caused an outbreak of cholera and malaria in Mozambique,[23][24] and 47 people were killed by Delfina.[25] In Malawi, flooding was not widespread,[26] although the storm destroyed about 3,600 houses.[27] Delfina killed eight people in the country.[7] Only two months after the storm struck, however, Cyclone Japhet left damage and deaths in many of the same areas that Delfina affected.[25]
Severe Tropical Storm Ebula
| Severe tropical storm (MFR) | |
| Category 1 tropical cyclone (SSHWS) | |
  | |
| Duration | January 7 – January 12 |
|---|---|
| Peak intensity | 115 km/h (75 mph) (10-min); 972 hPa (mbar) |
An area of convection persisted on January 6 to the southwest of Diego Garcia with an associated circulation. It moved generally southward southwest within an area of generally favorable conditions, becoming Tropical Disturbance 08 on January 7. Thunderstorms increased, and the JTWC initiated advisories on Tropical Cyclone 09S early on January 8. The next day, MFR upgraded it to Tropical Storm Ebula. Outflow became more pronounced and the storm continued to intensify. On January 10, the JTWC upgraded Ebula to the equivalent of a minimal hurricane, and estimated peak winds of 115 km/h (75 mph), just shy of tropical cyclone status. Subsequently, increased wind shear imparted weakening. After having spent much of its duration moving generally southward, Ebula turned to the southeast on January 11 due to a ridge to the south moving farther east. The thunderstorms diminished, and the JTWC discontinued advisories on January 12. That day, MFR declared that Ebula became extratropical,[19] and the remnants dissipated on January 15.[28]
Severe Tropical Storm Fari
| Severe tropical storm (MFR) | |
| Tropical storm (SSHWS) | |
  | |
| Duration | January 24 – January 31 |
|---|---|
| Peak intensity | 95 km/h (60 mph) (10-min); 985 hPa (mbar) |
An area of convection persisted on January 20 to the east-southeast of Diego Garcia, quickly developing outflow due to minimal wind shear. It moved to the southwest and its circulation became better defined. On January 23, the MFR initiated advisories on Tropical Disturbance 09, and later that day the JTWC issued a TCFA. Subsequently, the MFR upgraded the disturbance to a tropical depression and the JTWC initiated advisories on Tropical Cyclone 11S. Shortly thereafter, the system weakened and the circulation became exposed from the deep convection. The JTWC discontinued advisories on January 24, but MFR continued tracking the disturbance as it moved to the west. After reaching an area of low wind shear, thunderstorms again increased over the center, and the JTWC re-issued advisories on January 28. By that time, the system was nearing eastern Madagascar, and later that day MFR upgraded the system to Tropical Storm Fari. Early on January 29, MFR estimated peak winds of 95 km/h (60 mph), making Fari a moderate tropical storm. Shortly thereafter, the storm made landfall on Madagascar just south of Mahanoro. Fari quickly weakened into a tropical depression while crossing the country, emerging into the Mozambique Channel early on January 30. After the storm turned to the south, the MFR and JTWC declared Fari extratropical on January 31,[19] and the remnants dissipated on February 2.[29]
Tropical Storm Fari struck Madagascar after the country had experienced weeks of heavy rainfall, causing widespread flooding. In the area where it moved ashore, the storm flooded crop fields that damaged most of the banana and fruit trees. The storm left landslides that isolated Marolambo and caused damage in other towns. Fari left 3,400 people homeless and caused an outbreak of conjunctivitis and diarrhea.[19]
Intense Tropical Cyclone Gerry
| Intense tropical cyclone (MFR) | |
| Category 3 tropical cyclone (SSHWS) | |
  | |
| Duration | February 5 – February 15 |
|---|---|
| Peak intensity | 165 km/h (105 mph) (10-min); 940 hPa (mbar) |
On February 5, MFR began tracking a tropical disturbance to the east of Madagascar's northern coast. The system moved to the southwest before turning to the north on February 7.[30] By that day, the system had persistent convection around a weak circulation, located in an area of low wind shear. On February 8, the JTWC initiated advisories on Tropical Cyclone 16S, although initially the circulation was broad and exposed from the thunderstorms. The next day, MFR upgraded the depression to tropical storm status, and the Meteorological Services of Mauritius named the system Gerry. The storm turned to the south toward Mauritius and steadily intensified.[31] On February 12, the JTWC upgraded Gerry to the equivalent of a minimal hurricane, and shortly thereafter MFR upgraded the storm to a tropical cyclone.[30] Around that time, Gerry began undergoing rapid deepening, becoming an intense tropical cyclone early on February 13 while developing a well-defined eye and outflow. That day, the cyclone passed about 120 km (75 mi) east of Mauritius.[31] At that time, the JTWC estimated peak 1 minute winds of 195 km/h (120 mph), and MFR estimated peak 10 minute winds of 165 km/h (105 mph).[30] Subsequently, Gerry began weakening due to increasing wind shear, with the eye becoming disorganized. Later, the convection separated from the deepest convection,[31] and the cyclone weakened to tropical storm status on February 14.[30] The next day, JTWC discontinued advisories, and on February 16 MFR declared Jerry extratropical.[31] The remnants dissipated two days later.[30]
Early in its duration, Gerry passed just west of Tromelin Island, producing tropical storm force winds and gusts to 111 km/h (69 mph). The cyclone originally threatened to strike Mauritius directly, but due to a more east-southeasterly motion, Gerry passed more to the east.[31] The storm forced the closure of Sir Seewoosagur Ramgoolam International Airport,[32] along with schools and government offices.[33] Wind gusts on Mauritius reached 144 km/h (90 mph). Gerry dropped heavy rainfall, peaking at 139.2 mm (5.48 in) at Mare aux Vacoas, and it produced high waves along the northern coast. One person was killed who was electrocuted during the storm's passage.[31]
Tropical Cyclone Hape
| Tropical cyclone (MFR) | |
| Category 2 tropical cyclone (SSHWS) | |
  | |
| Duration | February 7 – February 16 |
|---|---|
| Peak intensity | 150 km/h (90 mph) (10-min); 960 hPa (mbar) |
Around the same time that Tropical Storm Gerry was developing, another area of convection to its east was organizing.[31] On February 7, the system became a tropical disturbance, and initially moved to the north.[34] Operationally, MFR first began issuing advisories on February 9 for Tropical Disturbance 11, when the system had a small center and accompanying convection. By that time, the disturbance had turned to the south, and favorable conditions allowed for gradual development.[31] MFR upgraded the system to tropical storm status late on February 9,[34] although the system was not named Hape until 36 hours later. On February 10, the JTWC initiated advisories on Tropical Cyclone 17S. An eye developed on February 11, suggesting quick intensification.[31] At 1800 UTC that day, the JTWC and MFR upgraded Hape to the equivalent of a minimal hurricane and to tropical cyclone status, respectively.[34] By that time, the cyclone had turned to the east-northeast due to a weakness in a ridge to the north.[31] MFR estimated that Hape reached peak 10–minute winds of 150 km/h (90 mph) on February 12, and the next day the JTWC estimated 1–minute winds of 165 km/h (105 mph). Later, the storm weakened, and it turned to the southeast when the ridge re-intensified. Outflow decreased due to interaction with Cyclone Gerry to the west,[31] and Hape weakened to tropical storm status on February 13.[34] On February 15, the JTWC discontinued advisories once the circulation was exposed from the deep convection. The next day, MFR followed suit after the circulation dissipated.[31]
Moderate Tropical Storm Isha
| Moderate tropical storm (MFR) | |
| Tropical storm (SSHWS) | |
  | |
| Duration | February 9 – February 15 |
|---|---|
| Peak intensity | 65 km/h (40 mph) (10-min); 995 hPa (mbar) |
Widespread convection in the monsoon trough persisted across the southeastern Indian Ocean in early February.[31] One area was tracked by the JTWC on February 3 in the Australian basin, southwest of Indonesia. The system moved westward without development, crossing into the basin on February 8. The next day, MFR began tracking the system as a tropical disturbance. On February 11, the system turned to the southeast,[35] due to a ridge to the north. That day, JTWC started issuing advisories on Tropical Cyclone 18S. Initially, the storm failed to intensify much due to a nearby upper-level ridge.[31] On February 12, MFR upgraded the system to a tropical storm,[35] and the next day the system was named Isha. Outflow became more pronounced due to minimal wind shear. The JTWC briefly estimated peak 1 minute winds of 85 km/h (50 mph), but the MFR never estimated winds above 65 km/h (40 mph). Isha weakened late on February 13 due to cooler waters, dry air, and stronger shear. On February 14, the JTWC discontinued advisories once there was little convection left,[31] and the MFR estimated Isha dissipated the next day.[35]
Intense Tropical Cyclone Japhet
| Intense tropical cyclone (MFR) | |
| Category 4 tropical cyclone (SSHWS) | |
  | |
| Duration | February 25 – March 5 |
|---|---|
| Peak intensity | 175 km/h (110 mph) (10-min); 935 hPa (mbar) |
Cyclone Japhet developed on February 25 near the southwest coast of Madagascar, and initially moved to the northwest before turning to the southwest. With favorable conditions for development, Japhet quickly intensified in the Mozambique Channel, reaching maximum winds of 175 km/h (110 mph), sustained over 10 minutes. This made it an intense tropical cyclone, only the sixth to occur in the channel in 24 years. After stalling briefly, the cyclone turned to the northwest, weakening slightly before striking Mozambique just south of Vilankulo on March 2. Japhet slowly weakened while progressing inland, dissipating over Zambia on March 6.[3][31]
Along its path, Japhet dropped heavy rainfall that caused widespread river flooding. The rains occurred after an extended drought, although excessive precipitation caused heavy crop damage, notably around where the storm moved ashore. In two provinces in Mozambique, the cyclone damaged or destroyed 25,000 houses, leaving at least 23,000 people homeless.[36] Flooding in Zambia caused rivers to rise in Mozambique several days after the storm's passage. There were 17 deaths in Mozambique.[37] Further inland, remnant rainfall destroyed a bridge and several houses in Zimbabwe, killing eight people.[38]
Very Intense Tropical Cyclone Kalunde
| Very intense tropical cyclone (MFR) | |
| Category 5 tropical cyclone (SSHWS) | |
  | |
| Duration | March 3 – March 14 |
|---|---|
| Peak intensity | 215 km/h (135 mph) (10-min); 910 hPa (mbar) |
Kalunde formed on March 3 from an area of convection southeast of Diego Garcia. The system slowly intensified while drifting to the west, becoming a moderate tropical storm on March 5. Its intensification rate increased as it began a steady southwest movement. Kalunde underwent rapid deepening and developed an eye, becoming a very intense tropical cyclone on March 8. Around that time, MFR estimated a minimum pressure of 910 mbar (27 inHg) with winds of 215 km/h (135 mph), and the JTWC estimated peak winds of 260 km/h (160 mph); this made Kalunde the strongest cyclone of the year in the basin. It weakened after undergoing an eyewall replacement cycle, and on March 12 Kalunde passed near Rodrigues island as a weakening cyclone. Around that time, the storm turned to the south, weakening to a tropical storm on March 14 before becoming extratropical the next day. The remnants of Kalunde dissipated on March 16.[39][40]
When the cyclone passed Rodrigues, it produced wind gusts estimated up to 210 km/h (130 mph), which caused an island-wide power outage.[41][42] Many roads were washed out,[43] and about 80 percent of the drinking water was contaminated.[42] During the storm's three-day passage of the island, a total of 329.1 mm (12.96 in) of rain fell.[44] A total of 1,600 homes were damaged, and total losses across the island amounted to $3.15 million (2003 USD, €3.4 million).[45]
Subtropical Depression Luma
| Subtropical depression (MFR) | |
  | |
| Duration | April 8 – April 11 |
|---|---|
| Peak intensity | 130 km/h (80 mph) (10-min); 980 hPa (mbar) |
A large low-level circulation persisted off the southwest coast of Madagascar on April 6.[46] On April 8, it became a subtropical depression according to MFR, and moved to the southwest before turning sharply to the southeast.[47] That day, the JTWC briefly assessed a fair potential for development. The circulation became exposed on April 9, but when it began quickly intensifying the next day, MFR initiated advisories on Subtropical Storm Luma. By that time, the JTWC classified the system as extratropical; however, the system developed convection near the center and became more of a tropical cyclone. On April 11, Luma developed an eye in the center of the thunderstorms,[46] prompting MFR to upgrade the storm to peak winds of 130 km/h (80 mph).[47] At that time, the storm was in an area of weak wind shear, although increasing shear caused rapid weakening and for the eye to dissipate. Early on April 12, Luma became extratropical as it merged with an approaching cold front.[46]
Tropical Cyclone Manou
| Tropical cyclone (MFR) | |
| Category 1 tropical cyclone (SSHWS) | |
.jpg)  | |
| Duration | May 1 – May 13 |
|---|---|
| Peak intensity | 155 km/h (95 mph) (10-min); 950 hPa (mbar) |
Late in the season in April, an area of convection formed southwest of Diego Garcia. It gradually organized, and there was a companion system to the west that also showed signs of development. The eastern system was declared Tropical Disturbance 16 on May 2, and with a ridge to the southeast it moved generally to the southwest. Early in its duration, the system affected St Brandon and Mauritius with gusty winds. On May 4 it intensified into Tropical Storm Manou on May 4. After an initial strengthening phase, the storm weakened but later re-intensified as it approached Madagascar. Manou developed a well-defined eye and reached peak winds only 19 km (12 mi) from the eastern Madagascar coastline.[48] It reached tropical cyclone status, at the time only one of six in the month since 1968.[4] For about 12 hours, the cyclone stalled before turning to the south and weakening. After becoming extratropical on May 10, Manou dissipated three days later.[48][35]
Manou struck Madagascar a year after Cyclone Kesiny hit the country in May 2002, representing the first known occurrence of May tropical cyclone impacts in consecutive years.[4] When Manou struck Madagascar, it produced gusts as strong as 211 km/h (131 mph) and heavy rainfall reaching 227 mm (8.9 in) in a 15 hour period, both at Vatomandry.[48] Damage in the country was heaviest there, where 85% of buildings were destroyed and 23 people were killed.[49] Manou destroyed about 24,500 houses nationwide, leaving 114,480 people homeless.[50][51] The storm destroyed large areas of crops and disrupted transportation, including damaging the road between Vatomandry and Brickaville.[52][53] Manou injured 85 and killed 89 people throughout Madagascar.[54][55]
Storm names
A tropical disturbance is named when it reaches moderate tropical storm strength. If a tropical disturbance reaches moderate tropical storm status west of 55°E, then the Sub-regional Tropical Cyclone Advisory Centre in Madagascar assigns the appropriate name to the storm. If a tropical disturbance reaches moderate tropical storm status between 55°E and 90°E, then the Sub-regional Tropical Cyclone Advisory Centre in Mauritius assigns the appropriate name to the storm. A new annual list is used every year so no names are retired.[56]
|
|
Season effects
This table lists all of the tropical cyclones and subtropical cyclones that were monitored during the 2002–2003 South-West Indian Ocean cyclone season. Information on their intensity, duration, name, areas affected, primarily comes from RSMC La Reunion. Death and damage reports come from either press reports or the relevant national disaster management agency while the damage totals are given in 2003 USD.
| Name | Dates | Peak intensity | Areas affected | Damage (USD) |
Deaths | Refs | ||
|---|---|---|---|---|---|---|---|---|
| Category | Wind speed | Pressure | ||||||
| One | September 4 – 8 | Moderate Tropical Storm | 65 km/h (40 mph) | 1003 hPa (29.62 inHg) | Seychelles | $50,000 | None | [10] |
| Atang | November 4 – 13 | Tropical Depression | 55 km/h (35 mph) | 997 hPa (29.44 inHg) | Madagascar, Mozambique, Tanzania | None | Several unconfirmed | [12] |
| Boura | November 14 – 27 | Tropical Cyclone | 130 km/h (80 mph) | 965 hPa (28.50 inHg) | None | None | None | [12] |
| Crystal | December 21 – 29 | Tropical Cyclone | 150 km/h (90 mph) | 955 hPa (28.20 inHg) | Mauritius | Minimal | None | [7] |
| Five | December 25 – 27 | Tropical Depression | 55 km/h (35 mph) | 998 hPa (29.47 inHg) | Madagascar, Mozambique, Tanzania | None | None | [7] |
| Delfina | December 30 – January 9 | Severe Tropical Storm | 95 km/h (60 mph) | 985 hPa (29.09 inHg) | Mozambique, Tanzania, Malawi | Unknown | 54 | [25][7] |
| Ebula | January 7 – 12 | Severe Tropical Storm | 115 km/h (75 mph) | 972 hPa (28.70 inHg) | None | None | None | [19] |
| Fari | January 24 – 31 | Severe Tropical Storm | 95 km/h (60 mph) | 985 hPa (29.09 inHg) | Madagascar | Unknown | None | [19] |
| Gerry | February 5 – 15 | Intense Tropical Cyclone | 165 km/h (105 mph) | 940 hPa (27.76 inHg) | Mauritius, Réunion | Unknown | 1 | [31] |
| Hape | February 7 – 16 | Tropical Cyclone | 150 km/h (90 mph) | 960 hPa (28.35 inHg) | None | None | None | [31] |
| Isha | February 9 – 15 | Moderate Tropical Storm | 65 km/h (40 mph) | 995 hPa (29.39 inHg) | None | None | None | [31] |
| Japhet | February 25 – March 5 | Intense Tropical Cyclone | 175 km/h (110 mph) | 935 hPa (27.61 inHg) | Mozambique, Zambia, Zimbabwe | Unknown | 25 | [37][38] |
| Kalunde | March 3 – 14 | Very Intense Tropical Cyclone | 215 km/h (135 mph) | 910 hPa (26.87 inHg) | Rodrigues Island | $3.15 million | None | [45] |
| Luma | April 8 – 11 | Subtropical Depression | 130 km/h (80 mph) | 980 hPa (28.94 inHg) | None | None | None | [46] |
| Manou | May 1 – 13 | Tropical Cyclone | 155 km/h (95 mph) | 950 hPa (28.05 inHg) | Madagascar | Unknown | 89 | [54] |
| Season aggregates | ||||||||
| 15 systems | September 4 – May 13 | 215 km/h (135 mph) | 910 hPa (26.86 inHg) | >$3.16 million | 168 | |||
See also
- List of Southern Hemisphere tropical cyclone seasons
- Atlantic hurricane seasons: 2002, 2003
- Pacific hurricane seasons: 2002, 2003
- Pacific typhoon seasons: 2002, 2003
- North Indian Ocean cyclone seasons: 2002, 2003
References
- ^ Philippe Caroff; et al. (June 2011). Operational procedures of TC satellite analysis at RSMC La Reunion (PDF) (Report). World Meteorological Organization. Retrieved 2013-04-22.
{{cite report}}: Explicit use of et al. in:|author=(help) - ^ "Joint Typhoon Warning Center Mission Statement". Joint Typhoon Warning Center. 2011. Archived from the original on 2007-07-26. Retrieved 2012-07-25.
- ^ a b c Joint Typhoon Warning Center (2005-04-10). 2003 Annual Tropical Cyclone Report (PDF) (Report). p. 644. Retrieved 2012-08-17.
- ^ a b c d The Global Climate System Review 2003 (PDF) (Report). World Meteorological Organization. 2005. p. 28-29. Retrieved 2013-04-30.
- ^ 1993-1994 Cyclone Season. RSMC La Reunion (Report). Météo-France. Retrieved 2013-04-30.
- ^ "Cyclone Season 2001–2002". RSMC La Reunion. Meteo-France. Retrieved 2013-05-25.
- ^ a b c d e f g h i j k l m n o Birger, Thomas. Monthly Global Tropical Cyclone Summary December 2002 (Report). Padgett, Gary. Retrieved 2013-04-29.
- ^ a b c d Boyle, Kevin. "Monthly Global Tropical Cyclone Summary September 2002". Padgett, Gary. Retrieved 2013-04-28.
- ^ a b Knapp, K. R.; M. C. Kruk; D. H. Levinson; H. J. Diamond; C. J. Neumann (2010). 2003 0120022003:Abaimba (2002247S03067). The International Best Track Archive for Climate Stewardship (IBTrACS): Unifying tropical cyclone best track data (Report). Bulletin of the American Meteorological Society. Retrieved 2013-04-14.
- ^ a b c d Tropical Depression Storm over Praslin and its Satellite Islands in Seychelles (PDF) (Report). United Nations Office for the Coordination of Humanitarian Affairs. 2003. Retrieved 2013-04-28.
- ^ International Federation of Red Cross and Red Crescent Societies (2002-09-13). Seychelles: Heavy rains & strong winds Information Bulletin No. 1/2002 (Report). ReliefWeb. Retrieved 2013-04-28.
- ^ a b c d e f g h i j Padgett, Gary. "Monthly Global Tropical Cyclone Summary November 2002". Retrieved 2013-04-28.
- ^ "Earthweek: A Diary of the Planet". The Vancouver Sun. 2002-11-16. (accessed via Lexis Nexis on 2013-04-28
- ^ United States Agency for International Development (2002-11-19). FEWS Mozambique Food Security Update: 19 Nov 2002 (Report). ReliefWeb. Retrieved 2013-04-29.
- ^ Famine Early Warning System Network (2002-11-19). Mozambique Food Security Update (PDF) (Report). ReliefWeb. Retrieved 2013-04-29.
- ^ a b c d e f Knapp, K. R.; M. C. Kruk; D. H. Levinson; H. J. Diamond; C. J. Neumann (2010). 2003 Boura (2002319S06078). The International Best Track Archive for Climate Stewardship (IBTrACS): Unifying tropical cyclone best track data (Report). Bulletin of the American Meteorological Society. Retrieved 2013-04-14.
- ^ a b c d e f g Knapp, K. R.; M. C. Kruk; D. H. Levinson; H. J. Diamond; C. J. Neumann (2010). 2003 Crystal (2002356S07070). The International Best Track Archive for Climate Stewardship (IBTrACS): Unifying tropical cyclone best track data (Report). Bulletin of the American Meteorological Society. Retrieved 2013-04-29.
- ^ Template:Fr icon Track for Severe Tropical Storm Delfina (Report). Météo-France. Retrieved 2012-12-03.
- ^ a b c d e f "Monthly Global Tropical Cyclone Summary January 203". Padgett, Gary. Retrieved 2013-04-30.
- ^ Knapp, K. R.; M. C. Kruk; D. H. Levinson; H. J. Diamond; C. J. Neumann (2010). 2003 Delfina (2002364S16045). The International Best Track Archive for Climate Stewardship (IBTrACS): Unifying tropical cyclone best track data (Report). Bulletin of the American Meteorological Society. Retrieved 2013-04-30.
- ^ a b Mozambique Floods Information Bulletin No. 2 (Report). ReliefWeb. 2003-01-16. Retrieved 2012-12-10.
{{cite report}}: Unknown parameter|agency=ignored (help) - ^ "Mozambique: 23,000 people affected by cyclone". ReliefWeb. IRIN. 2003-03-06. Retrieved 2012-12-05.
- ^ a b Mangwiro, Charles (2003-01-27). "Cholera outbreak kills 12 in flood-hit Mozambique". ReliefWeb. Reuters. Retrieved 2012-12-06.
- ^ "Malaria kills 45 in northern Mozambique: radio". ReliefWeb. Agence France-Presse. 2003-01-25. Retrieved 2012-12-06.
- ^ a b c "Cyclone claims 11 lives in Mozambique". ReliefWeb. Reuters. 2003-03-07. Retrieved 2012-12-05.
- ^ Food and shelter for Malawi flood victims (Report). 2003-01-15. Retrieved 2012-12-11.
{{cite report}}: Unknown parameter|agency=ignored (help) - ^ WFP Emergency Report No. 04 of 2003 (Report). ReliefWeb. 2003-01-24. Retrieved 2012-12-10.
{{cite report}}: Unknown parameter|agency=ignored (help) - ^ Knapp, K. R.; M. C. Kruk; D. H. Levinson; H. J. Diamond; C. J. Neumann (2010). 2003 Ebula (2003007S10072). The International Best Track Archive for Climate Stewardship (IBTrACS): Unifying tropical cyclone best track data (Report). Bulletin of the American Meteorological Society. Retrieved 2013-04-30.
- ^ Knapp, K. R.; M. C. Kruk; D. H. Levinson; H. J. Diamond; C. J. Neumann (2010). 2003 Fari (2003021S11081). The International Best Track Archive for Climate Stewardship (IBTrACS): Unifying tropical cyclone best track data (Report). Bulletin of the American Meteorological Society. Retrieved 2013-04-14.
- ^ a b c d e Knapp, K. R.; M. C. Kruk; D. H. Levinson; H. J. Diamond; C. J. Neumann (2010). 2003 Gerry (2003037S12061). The International Best Track Archive for Climate Stewardship (IBTrACS): Unifying tropical cyclone best track data (Report). Bulletin of the American Meteorological Society. Retrieved 2013-05-03.
- ^ a b c d e f g h i j k l m n o p q r s Padgett, Gary. "Monthly Global Tropical Cyclone Summary February 2003". Retrieved 2013-05-03. Cite error: The named reference "fgp" was defined multiple times with different content (see the help page).
- ^ "Cyclone 'Gerry' leaves one dead in Mauritius". Panapress. 2003-02-13. Retrieved 2013-05-03.
- ^ "Earthweek: A Diary of the Planet". The Vancouver Sun. 2003-02-15. (accessed via Lexis Nexis on 2013-05-03
- ^ a b c d Knapp, K. R.; M. C. Kruk; D. H. Levinson; H. J. Diamond; C. J. Neumann (2010). 2003 Hape (2003039S15066). The International Best Track Archive for Climate Stewardship (IBTrACS): Unifying tropical cyclone best track data (Report). Bulletin of the American Meteorological Society. Retrieved 2013-05-03.
- ^ a b c d Knapp, K. R.; M. C. Kruk; D. H. Levinson; H. J. Diamond; C. J. Neumann (2010). 2003 Isha (2003035S10099). The International Best Track Archive for Climate Stewardship (IBTrACS): Unifying tropical cyclone best track data (Report). Bulletin of the American Meteorological Society. Retrieved 2013-05-03. Cite error: The named reference "ibt" was defined multiple times with different content (see the help page).
- ^ "170 kph cyclone displaces 23,000 in Mozambique". ReliefWeb. Reuters. 2003-03-05. Retrieved 2012-08-19.
- ^ a b "Government Reports On Disasters". Africa News. 2003-04-02. (accessed via Lexis Nexis on 2012-08-22
- ^ a b "Zimbabwe; Elaborate Disaster Preparedness Plan Needed". Africa News. 2003-08-01. (accessed via Lexis Nexis on 2012-08-22
- ^ "2003 Kalunde (2003062S10080)". Climate Stewardship. Retrieved April 18, 2013.
- ^ Padget, Gary. Monthly Global Tropical Cyclone Summary March 2003 (Report). Australian Severe Weather Index. Retrieved November 24, 2012.
- ^ Template:Fr icon "Le cyclone Kalunde a atteint l'île Rodrigues mercredi soir". Pan African News Agency. March 13, 2003. Retrieved November 15, 2012.
- ^ a b Template:Fr icon 11 / 12 Mars 2003 : l'île Rodrigues est dévastée par le cyclone Kalunde (Report). Croix-Rouge Française. 2010. Retrieved November 15, 2012.
- ^ Template:Fr icon Debate No. 6 of 2003 (Report). Rodriques Region Assemby. April 4, 2003. Retrieved November 24, 2012.
- ^ Template:Fr icon "Kalunde : Rodrigues meurtrie". Accueil Orange. March 2003. Retrieved November 15, 2012.
- ^ a b Template:Fr icon "Rodrigues ravagé par un cyclone". Croix-Rouge Française. 2003-03-20. Retrieved 2012-11-25.
- ^ a b c d Hoarau, Karl (2003). "Monthly Global Tropical Cyclone Summary April 2003". Padgett, Gary. Retrieved 2013-04-25.
- ^ a b Knapp, K. R.; M. C. Kruk; D. H. Levinson; H. J. Diamond; C. J. Neumann (2010). 2003 Luma (2003098S23041). The International Best Track Archive for Climate Stewardship (IBTrACS): Unifying tropical cyclone best track data (Report). Bulletin of the American Meteorological Society. Retrieved 2013-04-14.
- ^ a b c Padgett, Gary (2006-12-27). "Monthly Global Tropical Cyclone Summary May 2003". Retrieved 2013-04-14.
- ^ United Nations Office for the Coordination of Humanitarian Affairs (2003-05-14). Madagascar - Tropical Cyclone Manou OCHA Situation Report No. 1 (Report). ReliefWeb. Retrieved 2013-04-18.
- ^ United Nations Office for the Coordination of Humanitarian Affairs (2003-05-16). Madagascar - Tropical Cyclone Manou OCHA Situation Report No. 2 (Report). ReliefWeb. Retrieved 2013-04-19.
- ^ World Food Programme (2003-05-23). WFP Emergency Report No. 21 of 2003 (Report). ReliefWeb. Retrieved 2013-04-19.
- ^ Madagascar: Cyclone kills at least 20 (Report). ReliefWeb. 2003-05-13. Retrieved 2013-04-18.
{{cite report}}: Unknown parameter|agency=ignored (help) - ^ Madagascar: Cyclone Manou batters eastern provinces (Report). ReliefWeb. 2003-05-09. Retrieved 2013-04-13.
{{cite report}}: Unknown parameter|agency=ignored (help) - ^ a b "Madagascar's cyclone death toll reaches 70". ReliefWeb. Pan African News Agency. 2003-05-19. Retrieved 2013-04-19.
- ^ Université Catholique de Louvain (2007). "EM-DAT: The OFDA/CRED International Disaster Database for North America". Retrieved 2007-09-07.
- ^ "Tropical Cyclone Operational Plan for the South Pacific and South-East Indian Ocean" (PDF). World Meteorological Organization. 2003. Retrieved 2008-08-15.
External links
- Joint Typhoon Warning Center (JTWC).
- Météo France (RSMC La Réunion).
- World Meteorological Organization
- 2002-03 Cyclone Season from Météo France
Tropical cyclones of the 2002–03 South-West Indian Ocean cyclone season | ||
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