Tropical Cyclone Orson
● 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).
奥森 (Orson) at 1989-04-16 14:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Category 5 Tropical Cyclone , max wind 约 72 m/s (1 分钟平均) , minimum central pressure 905 hPa, at 1989-04-24 20:00:00前后结束, total 记录 34 track points (6 h一个) . 曾Landfall或贴近land.
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1989-04-16 14:00 | -10.6°S, 127.6°E | Tropical Depression | 10.3 | - |
| 1989-04-17 02:00 | -11.7°S, 127.3°E | Tropical Depression | 12.9 | - |
| 1989-04-17 14:00 | -12.1°S, 126.8°E | Tropical Depression | 12.9 | 999 |
| 1989-04-18 02:00 | -12.7°S, 125.7°E | Tropical Depression | 15.4 | 999 |
| 1989-04-18 14:00 | -13.0°S, 124.3°E | Tropical Depression | 18 | 991 |
| 1989-04-19 02:00 | -12.8°S, 122.8°E | Category 1 Tropical Cyclone | 23.1 | 985 |
| 1989-04-19 14:00 | -12.5°S, 121.6°E | Category 2 Tropical Cyclone | 28.3 | 976 |
| 1989-04-20 02:00 | -12.1°S, 120.5°E | Category 3 tropical cyclone | 36 | 954 |
| 1989-04-20 14:00 | -12.1°S, 119.3°E | Category 3 tropical cyclone | 41.2 | 939 |
| 1989-04-21 02:00 | -12.8°S, 118.1°E | Category 4 tropical cyclone | 48.9 | 929 |
| 1989-04-21 14:00 | -14.0°S, 117.1°E | Category 4 tropical cyclone | 56.6 | 914 |
| 1989-04-22 02:00 | -15.5°S, 116.4°E | Category 5 Tropical Cyclone | 61.7 | 905 |
| 1989-04-22 14:00 | -17.4°S, 116.2°E | Category 5 Tropical Cyclone | 72 | 905 |
| 1989-04-23 02:00 | -20.1°S, 116.2°E | Category 5 Tropical Cyclone | 64.3 | 911 |
| 1989-04-23 14:00 | -23.9°S, 117.4°E | Category 3 tropical cyclone | 38.6 | 985 |
| 1989-04-24 02:00 | -27.8°S, 120.7°E | Category 1 Tropical Cyclone | 19.5 | 997 |
| 1989-04-24 14:00 | -31.0°S, 126.5°E | Tropical Depression | 13.9 | 1000 |
| 1989-04-24 20:00 | -32.0°S, 130.2°E | Extratropical cyclone | 11.3 | 1000 |
Data sources: NOAA National Environmental Information Center IBTrACS v04r01 (Knapp et al., 2010), code 1989106S11128 / SH261989. Chinese name source: Wikidata Q5198861. Intensity categories follow the classifications of local agencies in the region, converted from 1-minute sustained winds using WMO factors, for reference only. Data notes · Incorrect translation?
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