1990–91 South Pacific cyclone season
Tropical cyclone season / From Wikipedia, the free encyclopedia
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The 1990–91 South Pacific cyclone season was one of the least active tropical cyclone seasons on record, with only two tropical cyclones occurring within the South Pacific basin to the east of 160°E. The season officially ran from November 1, 1990 to April 30, 1991, with the first disturbance of the season forming on November 23, 1990, while the final disturbance dissipated on May 19, 1991. During the season there were no deaths recorded from any of the tropical cyclones while they were within the basin. However, six people were killed by Cyclone Joy, when it made landfall on Australia. As a result of the impacts caused by Joy and Sina, the names were retired from the tropical cyclone naming lists.
1990–91 South Pacific cyclone season | |
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Seasonal boundaries | |
First system formed | November 23, 1990 |
Last system dissipated | May 19, 1991 |
Strongest storm | |
Name | Sina |
• Maximum winds | 140 km/h (85 mph) (10-minute sustained) |
• Lowest pressure | 960 hPa (mbar) |
Seasonal statistics | |
Total depressions | 5 |
Tropical cyclones | 2 |
Severe tropical cyclones | 1 |
Total fatalities | None reported |
Total damage | $18.5 million (1991 USD) |
Related articles | |
South Pacific tropical cyclone seasons 1988–89, 1989–90, 1990–91, 1991–92, 1992–93 |
During the season, tropical cyclones were monitored by the Fiji Meteorological Service and the New Zealand MetService, while other meteorological services such as the Australian Bureau of Meteorology, Meteo France as well as the United States Joint Typhoon Warning Center and Naval Western Oceanography Center (NWOC) also monitored the basin. The JTWC issued warnings between 160°E and the International Date Line, while the NWOC issued warnings for tropical cyclones forming between the International Date Line and the coasts of the Americas. Both the JTWC and the NWOC designated tropical cyclones with a number and either a P suffix with numbers assigned in order to tropical cyclones developing within the whole of the Southern Hemisphere. The FMS, MetService and the BoM all used the Australian Tropical Cyclone Intensity Scale and estimate wind speeds over a ten-minute period, while the JTWC estimated sustained winds over a one-minute period, which are subsequently compared to the Saffir–Simpson hurricane wind scale (SSHWS).