Tropical Storm Ana (2022)

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Saffir–Simpson scale
  Tropical depression (≤38 mph, ≤62 km/h)
  Tropical storm (39–73 mph, 63–118 km/h)
  Category 1 (74–95 mph, 119–153 km/h)
  Category 2 (96–110 mph, 154–177 km/h)
  Category 3 (111–129 mph, 178–208 km/h)
  Category 4 (130–156 mph, 209–251 km/h)
  Category 5 (≥157 mph, ≥252 km/h)
  Unknown
Storm type
Disc Plain black.svg Tropical cyclone
Solid black.svg Subtropical cyclone
ArrowUp.svg Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression

As early as 14 January, long-range ensemble forecast guidance from the Global Forecast System and the European Centre for Medium-Range Weather Forecasts began to suggest a formation of a tropical cyclone to the northeast of the Mascarene Islands. [2] At 07:30 UTC on 20 January, the Joint Typhoon Warning Center reported a formation of an area of convection, which they designated as Invest 93S, approximately 378 nmi (700 km; 435 mi) from Mauritius, with the agency giving a low chance for potential tropical cyclogenesis within the next 24 hours. [3] At midday, the Météo-France La Réunion (MFR) noted that a closed circulation was now present to the north-northwest of Saint-Brandon. The formation of the disturbance was caused by the surge of monsoonal flow. [4] By the evening, the JTWC upgraded the system to a medium chance for potential tropical cyclogenesis, after noticing its obscure low-level circulation (LLC). [5] Early the next day, at 02:00 UTC, the JTWC issued its Tropical Cyclone Formation Alert (TCFA) for Invest 93S and also upgraded the system to a high chance for potential tropical cyclogenesis, as the agency noted its consolidation of a well-defined low-level center. [6] Later at 12:00 UTC, the MFR declared the tropical low pressure system as a zone of disturbed weather, becoming the first system of the season. The department noted the elongated circulation, which was a little more compact than yesterday, but still rather poorly organized. [7] Twelve hours later, the MFR upgraded it to tropical disturbance status, as they found that the system's cloud pattern had improved. Furthermore, its center had become well-defined but was still overall ill-defined and elongated. [8] The disturbance slowly consolidated into a defined convective structure while also developing distinct curved rainbands, which prompted the MFR to upgrade it to a tropical depression by 06:00 UTC on 22 January. [9]

Between 08:00 UTC and 09:00 UTC, the system's center crossed between Toamasina and Île Sainte-Marie as a tropical depression, with the MFR re-classifying the system as an overland depression. [10] [11] Because of the mountainous terrain of Madagascar, the system weakened a bit but still managed to preserve its organized convection and its low-level center. [11] At 06:00 UTC the next day, the MFR re-classified it again as a tropical disturbance after entering the Mozambique Channel. [12] Six hours later, it re-intensified into a tropical depression, as it gradually improved its convective structure and cooling of its convective bands. Its low-level clouds had developed a distinct curved pattern near the center. This occurred after entering the Mozambique Channel, where more conductive environmental conditions were available along with good convergence of monsoonal flow. [13] At 15:00 UTC, the JTWC declared the system a tropical cyclone and designated it 07S. [14] The MFR later upgraded it to a moderate tropical storm and named it Ana, becoming the first named storm of the season. [15] Ana maintained its intensity until at 08:00 UTC the same day, when it made landfall near south of Angoche, Mozambique. [16] [17] The system later moved westwards as an overland depression, crossing across southern Malawi and northern Zimbabwe, and by midday of 25 January, it became a remnant low over the adjoining areas of Zimbabwe and Zambia. [18] The remnant later moved towards Angola and was last noted on 30 January around Namibia and Angola. [19]

Impact

The storm caused dozens of casualties in Madagascar, Malawi and Mozambique, while causing severe damage to infrastructure in Malawi. It was feared that Cyclone Batsirai – which made landfall in Madagascar on 6 February – would hinder relief work. [20]

Madagascar

Before becoming a moderate tropical storm, Ana made landfall as a tropical depression in Madagascar, causing heavy rainfall which led to deadly landslides and floods; it caused 58 fatalities in the country. [21] An estimated 55,000 people had become homeless and 130,000 were forced to flee to temporary habitation centres. [22] [23]

Malawi

The region around Mulanje in Southern Malawi was particularly affected. [24] 37 were reported dead with another 22 remaining missing as of 31 January. 158 people were injured. [25] Most of the country lost electricity, and 200,000 had to leave their homes. [26] [22] 109,359 people were forced to reside in emergency camps. [25] Floods damaged the Kapichira Hydroelectric Power Station, which provides 30% of the country's electricity. The nationwide electricity supply remained intermittent days after the storm passed. [25] [23] [27]

Mozambique

The storm also killed 20 people in Mozambique. [28] 10,000 houses in Mozambique were destroyed as a result of the storm. An additional 20,000 were affected by the cyclone. [29]

See also

Related Research Articles

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<span class="mw-page-title-main">2008–09 South-West Indian Ocean cyclone season</span> Cyclone season in the Southwest Indian Ocean

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<span class="mw-page-title-main">2010–11 South-West Indian Ocean cyclone season</span>

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<span class="mw-page-title-main">2012–13 South-West Indian Ocean cyclone season</span> Cyclone season in the Southwest Indian Ocean

The 2012–13 South-West Indian Ocean cyclone season was a slightly above average event in tropical cyclone formation in the Southern hemisphere tropical cyclone year starting on July 1, 2012, and ending on June 30, 2013. Within this basin, tropical and subtropical disturbances are officially monitored by the Regional Specialised Meteorological Centre on Réunion island, while the Mauritius and Madagascar weather services assign names to significant tropical and subtropical disturbances. The first tropical disturbance of the season developed on October 12 and rapidly developed into the earliest known intense tropical cyclone on record during October 14.

<span class="mw-page-title-main">2013–14 South-West Indian Ocean cyclone season</span> Event of tropical cyclone formation in the Indian Ocean

The 2013–14 South-West Indian Ocean cyclone season was an above-average event in tropical cyclone formation. The season officially began on July 1, 2013, though the first tropical system designated by Météo-France was a short-lived tropical disturbance that developed on July 8. However, the first named storm was Cyclone Amara in December. Bruce was the first very intense tropical cyclone since Edzani in 2010, which originated from the Australian region. The strongest system of the cyclone season was Hellen, also one of the most intense tropical cyclones over the Mozambique Channel. The season officially ended on June 30, 2014

<span class="mw-page-title-main">2014–15 South-West Indian Ocean cyclone season</span> Cyclone season in the Southwest Indian Ocean

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<span class="mw-page-title-main">Tropical Storm Chedza</span>

Severe Tropical Storm Chedza was a deadly tropical cyclone that struck Madagascar in January 2015. It formed from the Intertropical Convergence Zone and moved over Mozambique, After moving open waters, the system began organizing on January 14, becoming Tropical Storm Chedza two days later. It quickly intensified over the Mozambique Channel due to warm waters and favorable conditions, and the storm attained peak 10 minute sustained winds of 100 km/h (60 mph) on January 16. That day, Chedza moved ashore western Madagascar between Belo sur Mer and Morondava, and it quickly crossed the island while weakening. The storm briefly re-intensified, passing southwest of Réunion before turning to the southeast. Chedza became extratropical on January 19, and was last noted two days later.

<span class="mw-page-title-main">2018–19 South-West Indian Ocean cyclone season</span> Cyclone season in the Southwest Indian Ocean

The 2018–19 South-West Indian Ocean cyclone season was the costliest and the most active season ever recorded. Additionally, it is also the deadliest cyclone season recorded in the South-West Indian Ocean, surpassing the 1891–92 season in which the 1892 Mauritius cyclone devastated the island of Mauritius, and is mainly due to Cyclone Idai. The season was an event of the annual cycle of tropical cyclone and subtropical cyclone formation in the South-West Indian Ocean basin. It officially began on 15 November 2018, and ended on 30 April 2019, except for Mauritius and the Seychelles, which it ended on 15 May 2019. These dates conventionally delimit the period of each year when most tropical and subtropical cyclones form in the basin, which is west of 90°E and south of the Equator. Tropical and subtropical cyclones in this basin are monitored by the Regional Specialised Meteorological Centre in Réunion.

<span class="mw-page-title-main">Cyclone Ava</span> South-West Indian Ocean cyclone in 2017

Tropical Cyclone Ava was a strong tropical cyclone that brought devastating impacts to parts of eastern Madagascar in January 2018. The first tropical depression, first named storm, and first tropical cyclone of the 2017–18 South-West Indian Ocean cyclone season, Ava formed as a weak area of disturbed weather well northeast of St. Brandon on December 30. Monitored by Météo-France La Réunion (MFR), the disturbance drifted southwest, before intensifying to a moderate tropical storm on January 2. Ava drifted south afterwards with little change in strength; then among favorable conditions near the coast of Madagascar Ava rapidly intensified to tropical cyclone intensity by early on January 5 shortly before making landfall in eastern Madagascar. After landfall, Ava pummeled the region with rainfall and flooding as it weakens into a moderate tropical storm. Ava exited the landmass on January 7 and became post-tropical southeast of southern Madagascar on January 8, slowly drifting southwards as a vigorous low before dissipating a day later.

<span class="mw-page-title-main">2019–20 South-West Indian Ocean cyclone season</span> Cyclone season in the Southwest Indian Ocean

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<span class="mw-page-title-main">2020–21 South-West Indian Ocean cyclone season</span> Cyclone season in the Southwest Indian Ocean

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<span class="mw-page-title-main">Tropical Storm Eliakim</span> South-West Indian Ocean severe tropical storm in 2018

Severe Tropical Storm Eliakim was a tropical cyclone that affected Madagascar and killed 21 people in 2018. The seventh tropical depression, sixth tropical storm of the 2017–18 South-West Indian Ocean cyclone season, and fourth tropical cyclone in 2018 to impact Madagascar, Eliakim was first noted as an area of atmospheric convection south-southwest of Diego Garcia on 9 March. Developmental conditions were favorable in its vicinity, and on 14 March, both the Joint Typhoon Warning Center (JTWC) and Météo-France La Réunion (MFR) began issuing warnings on the system, with MFR designating it as Tropical Disturbance 7 and the JTWC giving it the designation 14S. On the next day, MFR upgraded the system to a moderate tropical storm, assigning it the name Eliakim. Eliakim further intensified into a severe tropical storm on 15 March, with the JTWC upgrading it to a Category 1-equivalent cyclone on the Saffir–Simpson scale on 16 March. Eliakim made landfall on Masoala at 07:00 UTC, after which MFR estimated maximum 10-minute sustained winds of 110 km/h (70 mph) within the system. Eliakim weakened into a moderate tropical storm before abruptly turning southwards and re-emerging over water on 17 March. Despite unfavorable conditions, Eliakim re-intensified into a severe tropical storm on 19 March before being downgraded back into a moderate tropical storm 6 hours later. Eliakim transitioned into a post-tropical cyclone on 20 March as it moved away from Madagascar, with the MFR last tracking the system on 22 March.

<span class="mw-page-title-main">2021–22 South-West Indian Ocean cyclone season</span> Cyclone season in the Southwest Indian Ocean

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<span class="mw-page-title-main">Cyclone Felleng</span> South-West Indian tropical cyclone in 2013

Intense Tropical Cyclone Felleng was a powerful tropical cyclone that caused destruction across Seychelles, Madagascar, and Réunion. The seventh Tropical Disturbance, sixth named storm, and the third Intense Tropical Cyclone of the 2012–13 South-West Indian Ocean cyclone season, Felleng originated from an area of atmospheric convection embedded in the Intertropical Convergence Zone.

<span class="mw-page-title-main">Cyclone Batsirai</span> South-West Indian Ocean cyclone in 2022

Intense Tropical Cyclone Batsirai was a deadly tropical cyclone which heavily impacted Madagascar in February 2022, becoming the strongest tropical cyclone to strike Madagascar since Cyclone Enawo in 2017. It made landfall two weeks after Tropical Storm Ana brought deadly floods to the island country in late January. The second tropical disturbance, the first tropical cyclone, and the first intense tropical cyclone of the 2021–22 South-West Indian Ocean cyclone season, Batsirai originated from a tropical disturbance that was first noted on 24 January 2022. It fluctuated in intensity and became a moderate tropical storm on 27 January 2022, after which it unexpectedly rapidly intensified into an intense tropical cyclone. It then weakened and struggled to intensify through the coming days due to present wind shear and dry air, where it weakened after some time. Afterward, it entered much more favorable conditions, rapidly intensified yet again to a high-end Category 4 cyclone on the Saffir–Simpson scale while moving towards Madagascar. The storm underwent an eyewall replacement cycle the next day, and fluctuated in intensity before making landfall in Madagascar as a Category 3 cyclone, later rapidly weakening due to the mountainous terrain on the island.

<span class="mw-page-title-main">Tropical Storm Dumako</span> South-West Indian Ocean tropical storm in 2022.

Moderate Tropical Storm Dumako was a weak tropical cyclone that caused moderate damage in Madagascar. The fourth disturbance and fourth named storm of the 2021–22 South-West Indian Ocean cyclone season, it was the third storm to make landfall on Madagascar in 2022 after Ana and Batsirai.

<span class="mw-page-title-main">Cyclone Gombe</span> South-West Indian Ocean cyclone in 2022

Tropical Cyclone Gombe was a strong tropical cyclone that affected Mozambique. It became the first storm to make a major landfall in Nampula Province in Mozambique since Cyclone Jokwe in 2008. The eighth tropical storm, fourth tropical cyclone and fourth intense tropical cyclone of the 2021–22 South-West Indian Ocean cyclone season, Gombe originated from a tropical disturbance located off the coast of Madagascar. This area of convection was designated by the Joint Typhoon Warning Center as Invest 97S on 6 March. The next day, it began to slowly move westward and executed a loop as it became more organized, which prompted Météo-France Reunion (MFR) to note the system as Zone of Disturbed Weather 09. The system became a depression on 9 March, and became a moderate tropical storm the same day. Soon after being named, Gombe made landfall in Madagascar, and entered in the Mozambique Channel the next day. The storm continued its westward motion while slowly intensifying, and was upgraded to a Tropical Cyclone by the MFR on 10 March. Closing in on Nampula Province, the storm underwent rapid intensification, and was upgraded to the fourth Intense Tropical Cyclone of the year and reached its peak intensity on 11 march, with maximum 10-minute sustained winds of 165 km/h (105 mph), maximum 1-minute sustained winds of 185 km/h (115 mph), and a minimum central pressure of 960 hectopascals (28 inHg). The storm proceeded to make landfall, and quickly lost its convection over land. On 12 March, Gombe degenerated into a remnant low overland. However, the system subsequently turned southeastward and reemerged over water, before briefly regenerating into a tropical depression on 17 March. Gombe dissipated later that day.

<span class="mw-page-title-main">2022–23 South-West Indian Ocean cyclone season</span> Tropical cyclone season

The 2022–23 South-West Indian Ocean cyclone season was one of the deadliest South-West Indian cyclone seasons on record, mostly due to Cyclone Freddy. It officially began on 15 November 2022, and ended on 30 April 2023, with the exception for Mauritius and the Seychelles, for which it ended on 15 May 2023. These dates conventionally delimit the period of each year when most tropical and subtropical cyclones form in the basin, which is west of 90°E and south of the Equator. However, tropical cyclones can form year-round, and all tropical cyclones that form between 1 July 2022 and 30 June 2023 will be part of the season. Tropical and subtropical cyclones in this basin are monitored by the Regional Specialised Meteorological Centre in Réunion and unofficially by the Joint Typhoon Warning Center. The season was average in terms of the number of systems that formed, with nine systems becoming at least moderate tropical storms, and six reaching tropical cyclone strength. Activity began early, with the first two systems developing in September and October, and ended late with Fabien in May.

<span class="mw-page-title-main">Cyclone Cheneso</span> South-West Indian Ocean cyclone in 2023

Tropical Cyclone Cheneso was a strong tropical cyclone that affected Madagascar in January 2023. The fourth tropical storm and fifth tropical cyclone of the 2022–23 South-West Indian Ocean cyclone season, Cheneso developed out of a zone of disturbed weather status which was first monitored at RSMC La Réunion on 17 January. Despite convection wrapping into the curved band pattern, the system formed into a tropical depression on 18 January. The depression strengthened into Severe Tropical Storm Cheneso on the following day. Cheneso made landfall over northern Madagascar and weakened into an inland depression, before emerging into the Mozambique Channel. Cheneso later strengthened into a tropical cyclone on 25 January. The system continued moving southeast, before transitioning into a post–tropical depression on 29 January.

<span class="mw-page-title-main">2023–24 South-West Indian Ocean cyclone season</span> Tropical cyclone season

The 2023–24 South-West Indian Ocean cyclone season was an above-average season, including ten named storms, six tropical cyclones and two intense tropical cyclones. Despite its moderate activity, it was the least deadly and destructive season in three years. It is the current event of the annual cycle of tropical and subtropical cyclogenesis. It began on 15 November 2023, and ended on 30 April 2024, with the exception for Mauritius and the Seychelles, where it ended on 15 May 2024. These dates conventionally delimit the period of each year when most tropical and subtropical cyclones form in the basin, which is west of 90°E and south of the Equator. However, tropical cyclones can form year-round, and all tropical cyclones that formed between 1 July 2023 and 30 June 2024 would be part of the season. Tropical and subtropical cyclones in this basin are monitored by the Regional Specialised Meteorological Centre in Réunion and unofficially by the Joint Typhoon Warning Center.

References

  1. ↑ Q1 Global Catastrophe Recap (PDF) (Report). Aon Benfield. 12 April 2022. Retrieved 12 April 2022.
  2. ↑ Bulletin for Cyclonic Activity and Significant Tropical Weather in the Southwest Indian Ocean (PDF) (Report). Météo-France. 14 January 2022. Retrieved 20 July 2023.
  3. ↑ Significant Tropical Weather Advisory for the Indian Ocean Reissued (Report). United States Joint Typhoon Warning Center. 20 January 2022. Archived from the original on 20 January 2022. Retrieved 23 January 2022.
  4. ↑ "Bulletin for Cyclonic Activity and Significant Tropical Weather in the Southwestern Indian Ocean" (PDF). La Réunion, France: Météo-France. 20 January 2022. Retrieved 3 January 2022.
  5. ↑ Significant Tropical Weather Advisory for the Indian Ocean (Report). United States Joint Typhoon Warning Center. 20 January 2022. Archived from the original on 20 January 2022. Retrieved 23 January 2022.
  6. ↑ Tropical Cyclone Formation Alert (Invest 93S) (Report). United States Joint Typhoon Warning Center. 21 January 2022. Archived from the original on 20 January 2022. Retrieved 23 January 2022.
  7. ↑ "Zone of Disturbed Weather 1 Warning Number 1/1/20212022" (PDF). La Réunion, France: Météo-France. 21 January 2022. Retrieved 23 January 2022.
  8. ↑ "Tropical Disturbance 1 Warning Number 2/1/20212022" (PDF). La Réunion, France: Météo-France. 22 January 2022. Retrieved 23 January 2022.
  9. ↑ "Tropical Depression 1 Warning Number 3/1/20212022" (PDF). La Réunion, France: Météo-France. 22 January 2022. Retrieved 24 January 2022.
  10. ↑ "Overland Depression 1 Warning Number 4/1/20212022" (PDF). La Réunion, France: Météo-France. 22 January 2022. Retrieved 24 January 2022.
  11. 1 2 "Overland Depression 1 Warning Number 5/1/20212022" (PDF). La Réunion, France: Météo-France. 22 January 2022. Retrieved 24 January 2022.
  12. ↑ "Tropical Disturbance 1 Warning Number 7/1/20212022" (PDF). La Réunion, France: Météo-France. 23 January 2022. Retrieved 24 January 2022.
  13. ↑ "Tropical Disturbance 1 Warning Number 8/1/20212022" (PDF). La Réunion, France: Météo-France. 23 January 2022. Retrieved 24 January 2022.
  14. ↑ Prognostic Reasoning for Tropical Cyclone 07S (Seven) Warning No. 1 (Report). United States Joint Typhoon Warning Center. 23 January 2022. Archived from the original on 23 January 2022. Retrieved 24 January 2022.
  15. ↑ "Moderate Tropical Storm 1 (Ana) Warning Number 10/1/20212022" (PDF). La Réunion, France: Météo-France. 24 January 2022. Retrieved 24 January 2022.
  16. ↑ "Moderate Tropical Storm 1 (Ana) Warning Number 12/1/20212022" (PDF). La Réunion, France: Météo-France. 24 January 2022. Archived (PDF) from the original on 3 February 2022. Retrieved 1 February 2022.
  17. ↑ "Bulletin for Cyclonic Activity and Significant Tropical Weather in the Southwestern Indian Ocean" (PDF). La Réunion, France: Météo-France. 24 January 2022. Archived (PDF) from the original on 1 February 2022. Retrieved 1 February 2022.
  18. ↑ "Overland Depression 1 (Ana) Warning Number 16/1/20212022" (PDF). La Réunion, France: Météo-France. 25 January 2022. Archived (PDF) from the original on 1 February 2022. Retrieved 2 February 2022.
  19. ↑ "Bulletin for Cyclonic Activity and Significant Tropical Weather in the Southwestern Indian Ocean" (PDF). La Réunion, France: Météo-France. 30 January 2022. Archived (PDF) from the original on 1 February 2022. Retrieved 2 February 2022.
  20. ↑ "Madagascar: Recovering from one deadly cyclone, bracing for another". UN News. 4 February 2022. Archived from the original on 6 February 2022. Retrieved 5 February 2022.
  21. ↑ "Southern Africa: Cyclone Season Flash Update No. 2 (4 February 2022)". ReliefWeb . United Nations Office for the Coordination of Humanitarian Affairs. Archived from the original on 4 February 2022. Retrieved 6 February 2022.
  22. 1 2 Gregory Gondwe (25 January 2022). "Malawi hit by flooding caused by tropical storm Ana; 1 dead". apnews.com. Blantyre, Malawi: The Associated Press. Archived from the original on 1 February 2022. Retrieved 2 February 2022.
  23. 1 2 "Storm Ana kills dozens in Malawi, Madagascar and Mozambique". www.bbc.com. British Broadcasting Channel (BBC). 28 January 2022. Archived from the original on 3 February 2022. Retrieved 2 February 2022.
  24. ↑ "Madagascar, Mozambique, Malawi, Zimbabwe - Tropical Storm ANA, update (GDACS, UN OCHA, UN News, International Disaster Charter, media) (ECHO Daily Flash of 26 January 2022) - Madagascar". ReliefWeb. Archived from the original on 6 February 2022. Retrieved 28 January 2022.
  25. 1 2 3 "Malawi, Africa | Tropical Storm Ana 2022 - Emergency Appeal n° MDRMW015 - Malawi". ReliefWeb. Archived from the original on 6 February 2022. Retrieved 5 February 2022.
  26. ↑ "Malawi storm displaces 200,000 people with more bad weather on the way". Sky News. Archived from the original on 6 February 2022. Retrieved 28 January 2022.
  27. ↑ "Storm Ana kills at least three in Mozambique and Malawi". Reuters. 25 January 2022. Archived from the original on 6 February 2022. Retrieved 5 February 2022.
  28. ↑ "Dozens killed in Tropical Storm Ana as southern Africa braces for more wild weather". The Guardian . 28 January 2022. Archived from the original on 6 February 2022. Retrieved 28 January 2022.
  29. ↑ "Storm Ana kills dozens in Malawi, Madagascar and Mozambique". BBC News. 28 January 2022. Archived from the original on 6 February 2022. Retrieved 28 January 2022.
Severe Tropical Storm Ana
Ana 2022-01-24 1112Z.jpg
Moderate Tropical Storm Ana shortly after landfall in Mozambique on 24 January
2021-2022 South-West Indian Ocean cyclone season summary.png
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Ana
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Batsirai
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Cliff
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Dumako
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Emnati
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Fezile
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Vernon
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Gombe
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Halima
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Issa
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Jasmine
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Karim
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