Tropical Cyclone Fifi
● Data reliability: ReliableWeather satellites monitored it throughout, so its track and intensity are relatively accurate (Atlantic and E. Pacific since 1966, other basins since 1980).
Fifi at 1991-04-15 02:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Category 2 Tropical Cyclone , max wind 约 28.3 m/s (1 分钟平均) , minimum central pressure 975 hPa, at 1991-04-21 20:00:00前后结束, total 记录 28 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1991-04-15 02:00 | -12.1°S, 102.7°E | Tropical Depression | 10.3 | - |
| 1991-04-15 14:00 | -12.1°S, 102.7°E | Tropical Depression | 10.3 | 1002 |
| 1991-04-16 02:00 | -12.3°S, 102.5°E | Tropical Depression | 12.9 | 1000 |
| 1991-04-16 14:00 | -12.4°S, 102.3°E | Tropical Depression | 15.4 | 998 |
| 1991-04-17 02:00 | -12.6°S, 102.3°E | Tropical Depression | 18 | 995 |
| 1991-04-17 14:00 | -13.4°S, 102.3°E | Tropical Depression | 18 | 985 |
| 1991-04-18 02:00 | -14.8°S, 102.2°E | Category 1 Tropical Cyclone | 25.7 | 975 |
| 1991-04-18 14:00 | -16.4°S, 102.3°E | Category 2 Tropical Cyclone | 28.3 | 975 |
| 1991-04-19 02:00 | -18.3°S, 103.1°E | Category 2 Tropical Cyclone | 28.3 | 980 |
| 1991-04-19 14:00 | -20.7°S, 104.4°E | Category 2 Tropical Cyclone | 28.3 | 985 |
| 1991-04-20 02:00 | -23.6°S, 105.9°E | Category 1 Tropical Cyclone | 25.7 | 1000 |
| 1991-04-20 14:00 | -28.0°S, 108.1°E | Category 1 Tropical Cyclone | 23.1 | 1002 |
| 1991-04-21 02:00 | -31.0°S, 110.6°E | Category 1 Tropical Cyclone | 23.1 | 995 |
| 1991-04-21 14:00 | -34.3°S, 114.0°E | Extratropical cyclone | 27.8 | 990 |
| 1991-04-21 20:00 | -37.0°S, 115.5°E | Extratropical cyclone | 27.8 | 990 |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1991105S12103 / SH201991. There is no official Chinese name for this area; the original English name is used. Intensity categories follow the local agency classification for the region (converted from 1-minute sustained winds using the WMO factor) and are for reference only. Data notes · Incorrect translation?
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