Tropical Storm Ana (2022) Explained
Severe Tropical Storm Ana |
Formed: | 20 January 2022 |
Dissipated: | 26 January 2022 |
Damages: | 25000000 |
Damages-Suffix: | [1] |
Deaths: | 142 |
Year: | 2022 |
Affected: | Madagascar, Mozambique, South Africa, Malawi, Zimbabwe, Mauritius, Zambia |
Severe Tropical Storm Ana was a deadly tropical cyclone that affected the African nations of Madagascar, Malawi and Mozambique and was the third-deadliest tropical cyclone in 2022, after the Western Pacific Tropical Storm Megi and Atlantic Hurricane Ian. The first named storm of the 2021–22 South-West Indian Ocean cyclone season, Ana developed from an area of convection that was designated as Invest 93S northeast of Madagascar.
Meteorological history
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 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
See also: 2022 Antananarivo floods. 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. 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.[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
External links
Notes and References
- Q1 Global Catastrophe Recap. April 12, 2022. Aon Benfield. April 12, 2022.
- Bulletin for Cyclonic Activity and Significant Tropical Weather in the Southwest Indian Ocean. 14 January 2022. Météo-France. 20 July 2023.
- Significant Tropical Weather Advisory for the Indian Ocean Reissued. 20 January 2022. 23 January 2022. https://wiki.chlod.net/jtwc/text/2022-01-20-0750-abioweb.txt. 20 January 2022.
- Web site: 20 January 2022. Bulletin for Cyclonic Activity and Significant Tropical Weather in the Southwestern Indian Ocean. 3 January 2022. Météo-France. La Réunion, France.
- Significant Tropical Weather Advisory for the Indian Ocean. 20 January 2022. 23 January 2022. https://wiki.chlod.net/jtwc/text/2022-01-20-1900-abioweb.txt. 20 January 2022.
- https://www.metoc.navy.mil/jtwc/products/sh9322web.txt. 21 January 2022. 23 January 2022. tcfa. 93S. https://wiki.chlod.net/jtwc/text/2022-01-21-0200-sh9322web.txt. 20 January 2022.
- Web site: 21 January 2022. Zone of Disturbed Weather 1 Warning Number 1/1/20212022. 23 January 2022. Météo-France. La Réunion, France.
- Web site: 22 January 2022. Tropical Disturbance 1 Warning Number 2/1/20212022. 23 January 2022. Météo-France. La Réunion, France.
- Web site: 22 January 2022. Tropical Depression 1 Warning Number 3/1/20212022. 24 January 2022. Météo-France. La Réunion, France.
- Web site: Overland Depression 1 Warning Number 4/1/20212022. Météo-France. La Réunion, France. 22 January 2022. 24 January 2022.
- Web site: 22 January 2022. Overland Depression 1 Warning Number 5/1/20212022. 24 January 2022. Météo-France. La Réunion, France.
- Web site: 23 January 2022. Tropical Disturbance 1 Warning Number 7/1/20212022. 24 January 2022. Météo-France. La Réunion, France.
- Web site: 23 January 2022. Tropical Disturbance 1 Warning Number 8/1/20212022. 24 January 2022. Météo-France. La Réunion, France.
- https://www.metoc.navy.mil/jtwc/products/sh0722prog.txt. 23 January 2022. 24 January 2022. prog. TC. 07S. Seven. 1. https://wiki.chlod.net/jtwc/prog/2022-01-23-1510-sh0722prog.txt. 23 January 2022.
- Web site: 24 January 2022. Moderate Tropical Storm 1 (Ana) Warning Number 10/1/20212022. 24 January 2022. Météo-France. La Réunion, France.
- Web site: 24 January 2022. Moderate Tropical Storm 1 (Ana) Warning Number 12/1/20212022. live. 1 February 2022. Météo-France. La Réunion, France. 3 February 2022. https://web.archive.org/web/20220203142157/http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202201241200_ANA.pdf.
- Web site: 24 January 2022. Bulletin for Cyclonic Activity and Significant Tropical Weather in the Southwestern Indian Ocean. live. 1 February 2022. Météo-France. La Réunion, France. 1 February 2022. https://web.archive.org/web/20220201195837/http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/zcit/ZCITA_202201241208.pdf.
- Web site: 25 January 2022. Overland Depression 1 (Ana) Warning Number 16/1/20212022. live. 2 February 2022. Météo-France. La Réunion, France. 1 February 2022. https://web.archive.org/web/20220201195838/http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202201251200_ANA.pdf.
- Web site: 30 January 2022. Bulletin for Cyclonic Activity and Significant Tropical Weather in the Southwestern Indian Ocean. live. 2 February 2022. Météo-France. La Réunion, France. 1 February 2022. https://web.archive.org/web/20220201195839/http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/zcit/ZCITA_202201301149.pdf.
- Web site: 2022-02-04. Madagascar: Recovering from one deadly cyclone, bracing for another. live. https://archive.today/20220206014606/https://news.un.org/en/story/2022/02/1111292. 2022-02-06. 2022-02-05. UN News. en.
- Web site: Southern Africa: Cyclone Season Flash Update No. 2 (4 February 2022). ReliefWeb. United Nations Office for the Coordination of Humanitarian Affairs. 6 February 2022. live. https://web.archive.org/web/20220204170805/https://reliefweb.int/report/madagascar/southern-africa-cyclone-season-flash-update-no-2-4-february-2022 . 4 February 2022 .
- Web site: Malawi hit by flooding caused by tropical storm Ana; 1 dead. Gregory Gondwe. apnews.com. The Associated Press. Blantyre, Malawi. 25 January 2022. 2 February 2022. 1 February 2022. https://web.archive.org/web/20220201121102/https://apnews.com/article/floods-storms-power-outages-mozambique-indian-ocean-26a596e479282f08fef1a37280231dc9. live.
- Web site: Storm Ana kills dozens in Malawi, Madagascar and Mozambique. www.bbc.com. British Broadcasting Channel (BBC). 28 January 2022. 2 February 2022. 3 February 2022. https://web.archive.org/web/20220203210616/https://www.bbc.com/news/world-africa-60157537. live.
- Web site: 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. https://archive.today/20220206020057/https://reliefweb.int/report/madagascar/madagascar-mozambique-malawi-zimbabwe-tropical-storm-ana-update-gdacs-un-ocha-un. 2022-02-06. 2022-01-28. ReliefWeb. en.
- Web site: Malawi, Africa Tropical Storm Ana 2022 - Emergency Appeal n° MDRMW015 - Malawi. live. https://archive.today/20220206021146/https://reliefweb.int/report/malawi/malawi-africa-tropical-storm-ana-2022-emergency-appeal-n-mdrmw015. 2022-02-06. 2022-02-05. ReliefWeb. en.
- Web site: Malawi storm displaces 200,000 people with more bad weather on the way. live. https://archive.today/20220206020503/https://news.sky.com/video/malawi-storm-displaces-200-000-people-with-more-bad-weather-on-the-way-12527013. 2022-02-06. 2022-01-28. Sky News. en.
- News: 2022-01-25. Storm Ana kills at least three in Mozambique and Malawi. en. Reuters. 2022-02-05. https://archive.today/20220206022504/https://www.reuters.com/world/africa/tropical-storm-kills-two-injures-66-mozambique-2022-01-25/. 2022-02-06.
- Web site: Dozens killed in Tropical Storm Ana as southern Africa braces for more wild weather. live. https://archive.today/20220206023708/https://www.theguardian.com/world/2022/jan/28/dozens-killed-in-tropical-storm-ana-as-southern-africa-braces-for-more-wild-weather. 6 February 2022. 28 January 2022. The Guardian. 28 January 2022 .
- News: 2022-01-28. Storm Ana kills dozens in Malawi, Madagascar and Mozambique. en-GB. BBC News. 2022-01-28. https://archive.today/20220206024543/https://www.bbc.com/news/world-africa-60157537. 6 February 2022.