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Tropical cyclones in 1991

During 1991, tropical cyclones formed within seven different tropical cyclone basins, located within various parts of the Atlantic, Pacific and Indian Oceans. During the year, a total of 100 systems formed with 75 of these developing further and were named by the responsible warning centre. The strongest tropical cyclone of the year was Typhoon Yuri, which was estimated to have a minimum barometric pressure of 895 hPa (26.43 inHg). The deadliest tropical cyclone was Cyclone BOB 01, which caused 138,866 fatalities in Bangladesh, Northeastern India, Myanmar, Yunnan, while the costliest was Typhoon Mireille, which caused an estimated $10 billion USD in damage after striking Japan. Four Category 5 tropical cyclones formed in 1991.

Tropical cyclones in 1991
Year boundaries
First systemAlison
FormedJanuary 8, 1991
Last systemBryna
DissipatedJanuary 10, 1992
Strongest system
NameYuri
Lowest pressure895 mbar (hPa); 26.43 inHg
Longest lasting system
NameNat
Duration19 days
Year statistics
Total systems100
Named systems75
Total fatalities144,609 total
Total damage$13.71 billion (1991 USD)
Related articles
Other years
1989, 1990, 1991, 1992, 1993

Tropical cyclone activity in each basin is under the authority of an RSMC. The National Hurricane Center (NHC) is responsible for tropical cyclones in the North Atlantic and East Pacific. The Central Pacific Hurricane Center (CPHC) is responsible for tropical cyclones in the Central Pacific. Both the NHC and CPHC are subdivisions of the National Weather Service. Activity in the West Pacific is monitored by the Japan Meteorological Agency (JMA). Systems in the North Indian Ocean are monitored by the India Meteorological Department (IMD). The Météo-France located in Réunion (MFR) monitors tropical activity in the South-West Indian Ocean. The Australian region is monitored by five TCWCs that are under the coordination of the Australian Bureau of Meteorology (BOM). Similarly, the South Pacific is monitored by both the Fiji Meteorological Service (FMS) and the Meteorological Service of New Zealand Limited. Other, unofficial agencies that provide additional guidance in tropical cyclone monitoring include the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) and the Joint Typhoon Warning Center (JTWC).

Global conditions and hydrological summary

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Summary

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Cyclone Wasa-ArthurCyclone ValCyclone Tia1991 Perfect StormHurricane Grace (1991)Hurricane BobCyclone Bellatropical cyclone basins

Systems

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January

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Cyclone Bella

January was the least active in terms of tropical cyclogenesis and named storms, with only three cyclones forming, two being named. Tropical Cyclone Bella caused flooding in Rodrigues.

Tropical cyclones formed in January 1991
Storm name Dates active Max wind
km/h (mph) 		Pressure
(hPa) 		Areas affected Damage
(USD) 		Deaths Refs
Alison January 8 – 18 110 (70) 966 None None None
01A January 14 – 20 65 (40) 997 None None None
Bella January 18 – February 4 155 (100) 936 Rodrigues None None

February

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Tropical cyclones formed in February 1991
Storm name Dates active Max wind
km/h (mph) 		Pressure
(hPa) 		Areas affected Damage
(USD) 		Deaths Refs

March

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Tropical cyclones formed in March 1991
Storm name Dates active Max wind
km/h (mph) 		Pressure
(hPa) 		Areas affected Damage
(USD) 		Deaths Refs

April

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Tropical cyclones formed in April 1991
Storm name Dates active Max wind
km/h (mph) 		Pressure
(hPa) 		Areas affected Damage
(USD) 		Deaths Refs

May

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Tropical cyclones formed in May 1991
Storm name Dates active Max wind
km/h (mph) 		Pressure
(hPa) 		Areas affected Damage
(USD) 		Deaths Refs

June

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Tropical cyclones formed in June 1991
Storm name Dates active Max wind
km/h (mph) 		Pressure
(hPa) 		Areas affected Damage
(USD) 		Deaths Refs

July

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Tropical cyclones formed in July 1991
Storm name Dates active Max wind
km/h (mph) 		Pressure
(hPa) 		Areas affected Damage
(USD) 		Deaths Refs
Ana 2–5 July 85 (50) 1000 Florida, Bahamas, South Carolina Minimal None
Two 5–7 July 55 (35) 1007 Mexico Minimal None

August

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Tropical cyclones formed in August 1991
Storm name Dates active Max wind
km/h (mph) 		Pressure
(hPa) 		Areas affected Damage
(USD) 		Deaths Refs
Bob August 16–20 185 (115) 950 North Carolina, Mid-Atlantic, New England, Atlantic Canada, Iberian Peninsula $1.47 billion 17
Four August 24–26 55 (35) 1007 None None None
Five August 28–31 55 (35) 1007 None None None

September

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Tropical cyclones formed in September 1991
Storm name Dates active Max wind
km/h (mph) 		Pressure
(hPa) 		Areas affected Damage
(USD) 		Deaths Refs

October

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Tropical cyclones formed in October 1991
Storm name Dates active Max wind
km/h (mph) 		Pressure
(hPa) 		Areas affected Damage
(USD) 		Deaths Refs

November

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Tropical cyclones formed in November 1991
Storm name Dates active Max wind
km/h (mph) 		Pressure
(hPa) 		Areas affected Damage
(USD) 		Deaths Refs

December

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Tropical cyclones formed in December 1991
Storm name Dates active Max wind
km/h (mph) 		Pressure
(hPa) 		Areas affected Damage
(USD) 		Deaths Refs

Global effects

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Season name Areas affected Systems formed Named storms Damage (USD) Deaths
1991 Atlantic hurricane season Southeastern United States, Mid-Atlantic States, New England, Atlantic Canada, Iberian Peninsula, Bermuda, East Coast of the United States, Atlantic Canada, Northeastern United States, Eastern Canada 12 8 $1.67 billion 30
1991 Pacific hurricane season Southwestern Mexico, Hawaiian Islands, Clarion Island, Guadalupe Island, Southwestern United States 16 14 Un­known 11
1991 Pacific typhoon season 3 Caroline Islands, Philippines, Japan, Vietnam, China, Mariana Islands, Ryukyu Islands, Taiwan, South China, South Korea, Laos, Thailand, Marshall Islands, Russia Far East, Guam 37 28 $10.1 billion 5,505
1991 North Indian Ocean cyclone season Bangladesh, Northeastern India, Myanmar, Yunnan 8 3 $1.5 billion 138,906
1990–91 South-West Indian Ocean cyclone season 2 Madagascar, Juan de Nova Island, Mozambique, Europa Island, Rodrigues 7 7 Un­known 88
1991–92 South-West Indian Ocean cyclone season 3 Madagascar, Mauritius, Rodrigues, Réunion 6 4 Un­known Un­known
1990–91 Australian region cyclone season 2 Queensland, Northern Territory, Western Australia, Papua New Guinea, Solomon Islands, Vanuatu 9 7 $1.03 million 50
1991–92 Australian region cyclone season 3 None 1 1 None None
1990–91 South Pacific cyclone season 2 New Caledonia 1 0 None None
1991–92 South Pacific cyclone season 3 Kiribati, Solomon Islands, Vanuatu, Tuvalu, Tokelau, Cook Islands, Wallis and Futuna, Tonga, Samoa, American Samoa, French Polynesia 3 3 $441 million 19
Worldwide (See above) 100[a] 75 $13.71 billion 144,609
  1. ^ The sum of the number of systems and fatalities in each basin will not equal the number shown as the total. This is because when systems move between basins, it creates a discrepancy in the actual number of systems and fatalities.

See also

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Notes

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1 Only systems that formed either on or after January 1, 1991 are counted in the seasonal totals.
2 Only systems that formed either before or on December 31, 1991 are counted in the seasonal totals.
3 The wind speeds for this tropical cyclone/basin are based on the IMD Scale which uses 3-minute sustained winds.
4 The wind speeds for this tropical cyclone/basin are based on the Saffir Simpson Scale which uses 1-minute sustained winds.
5The wind speeds for this tropical cyclone are based on Météo-France which uses gust winds.

References

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Regional Specialized Meteorological Centers

Tropical Cyclone Warning Centers

  This article incorporates public domain material from websites or documents of the National Weather Service.

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