Tropical Cyclone Ofa
● 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).
Ofa at 1990-01-28 08:00:00 (BeijingTime) 在South Pacific首次被记录, peak intensity 为Category 4 tropical cyclone , max wind 约 59.2 m/s (1 分钟平均) , minimum central pressure 925 hPa, at 1990-02-11 02:00:00前后结束, total 记录 56 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1990-01-28 08:00 | -9.7°S, 177.1°W | Tropical Depression | 12.9 | - |
| 1990-01-29 02:00 | -10.4°S, 178.9°W | Tropical Depression | 12.9 | - |
| 1990-01-29 20:00 | -8.6°S, 179.5°W | Tropical Depression | 12.9 | - |
| 1990-01-30 14:00 | -7.7°S, 179.8°W | Tropical Depression | 12.9 | - |
| 1990-01-31 08:00 | -7.7°S, 178.8°W | Tropical Depression | 15.4 | 990 |
| 1990-02-01 02:00 | -8.4°S, 177.9°W | Category 1 Tropical Cyclone | 20.6 | 985 |
| 1990-02-01 20:00 | -9.1°S, 176.6°W | Category 2 Tropical Cyclone | 33.4 | 980 |
| 1990-02-02 14:00 | -10.3°S, 175.0°W | Category 3 tropical cyclone | 46.3 | 970 |
| 1990-02-03 08:00 | -12.4°S, 174.1°W | Category 4 tropical cyclone | 54 | 960 |
| 1990-02-04 02:00 | -14.0°S, 173.7°W | Category 4 tropical cyclone | 56.6 | 940 |
| 1990-02-04 20:00 | -16.6°S, 172.0°W | Category 4 tropical cyclone | 59.2 | 925 |
| 1990-02-05 14:00 | -19.8°S, 169.8°W | Category 4 tropical cyclone | 54 | 925 |
| 1990-02-06 08:00 | -22.6°S, 168.6°W | Category 4 tropical cyclone | 51.4 | 945 |
| 1990-02-07 02:00 | -25.1°S, 169.1°W | Category 3 tropical cyclone | 41.2 | 965 |
| 1990-02-07 20:00 | -27.4°S, 170.3°W | Category 1 Tropical Cyclone | 20.6 | 980 |
| 1990-02-08 14:00 | -29.7°S, 171.7°W | Tropical Depression | 15.4 | 987 |
| 1990-02-09 08:00 | -31.2°S, 172.4°W | Tropical Depression | 15.4 | 995 |
| 1990-02-10 02:00 | -31.9°S, 172.5°W | Category 1 Tropical Cyclone | 19.5 | 995 |
| 1990-02-10 20:00 | -31.7°S, 171.6°W | Tropical Depression | 13.9 | 999 |
| 1990-02-11 02:00 | -32.0°S, 171.3°W | Tropical Depression | 13.9 | 1000 |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1990028S10183 / SH131990. There is no official Chinese name for this system, so the original English name is used. Intensities are classified by the local agency in the relevant region and converted from 1-minute sustained winds using the WMO factor, for reference only. Data notes · Incorrect translation?
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