List of South-West Indian Ocean severe tropical storms

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Within the South-West Indian Ocean, the term severe tropical storms is reserved for those systems, that have winds of at least 50 knots (95 km/h; 60 mph). It is the second-highest classification used within the South-West Indian Ocean to classify tropical cyclones with.

Background[]

The South-West Indian Ocean tropical cyclone basin is located to the south of the Equator between Africa and 90°E.[1] The basin is officially monitored by Météo-France who run the Regional Specialised Meteorological Centre in La Réunion, while other meteorological services such as the Australian Bureau of Meteorology, Mauritius Meteorological Service as well as the United States Joint Typhoon Warning Center also monitor the basin.[1] Within the basin a severe tropical storm is a tropical storm that has 10-minute maximum sustained wind speeds between 50–65 knots (95–120 km/h; 60–75 mph).[1]

Systems[]

Name System dates Sustained
wind speeds 		Pressure Areas affected Deaths Damage
(USD) 		Refs
Bongoyo 4 —10 December, 2020 100 km/h (65 mph) 988 hPa (29.18 inHg) Cocos Islands None None [2][3][4]
Chalane 19 –30 December, 2020 110 km/h (70 mph) 983 hPa (29.03 inHg) Madagascar, Mozambique, Zimbabwe, Botswana, Namibia 7 Minimal
Danilo 28 December, 2020 – 12 January, 2021 100 km/h (65 mph) 981 hPa (28.97 inHg) Chagos Archipelago None None [5]

Climatology[]

Intense tropical cyclones by month
Month Number of storms
January
0
February
0
March
0
April
0
May
0
June
0
July
0
August
0
September
0
October
0
November
0
December
3
Intense tropical cyclones by decade
Decade Number of storms
1970s
0
1980s
0
1990s
0
2000s
0
2010s
0
2020s
3

See also[]

References[]

  1. ^ a b c RA I Tropical Cyclone Committee. Tropical Cyclone Operational Plan for the Tropical Cyclone Operational Plan for the South-West Indian Ocean 2019 (PDF) (Report). World Meteorological Organization. Retrieved May 3, 2020.
  2. ^ "Severe Tropical Storm 3 (Bongoyo) Warning Number 9/3/20202021". Météo-France La Réunion.{{cite web}}: CS1 maint: url-status (link)
  3. ^ "Severe Tropical Storm 3 (Bongoyo) Warning Number 10/3/20202021". Météo-France La Réunion.
  4. ^ "Severe Tropical Storm 3 (Bongoyo) Warning Number 12/3/20202021" (PDF). Météo-France La Réunion.
  5. ^ "A Severe Tropical Storm 6 (Danilo) Warning Number 15/6/20202021" (PDF). Météo-France La Réunion. 3 January 2021.{{cite web}}: CS1 maint: url-status (link)
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