Tropical Cyclone Dona
● 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).
Dona at 1989-01-10 14:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Tropical Disturbance, max wind 约 15.4 m/s (1 分钟平均) , minimum central pressure 997 hPa, at 1989-01-15 14:00:00前后结束, total 记录 21 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1989-01-10 14:00 | -15.0°S, 62.6°E | Tropical Disturbance | 13.4 | 1000 |
| 1989-01-10 20:00 | -15.2°S, 62.1°E | Tropical Disturbance | 15.4 | 997 |
| 1989-01-11 02:00 | -15.5°S, 61.7°E | Tropical Disturbance | 15.4 | 997 |
| 1989-01-11 08:00 | -15.9°S, 61.4°E | Tropical Disturbance | 15.4 | 997 |
| 1989-01-11 14:00 | -16.5°S, 61.2°E | Tropical Disturbance | 15.4 | 997 |
| 1989-01-11 20:00 | -17.3°S, 61.0°E | Tropical Disturbance | 15.4 | 997 |
| 1989-01-12 02:00 | -18.3°S, 61.0°E | Tropical Disturbance | 15.4 | 997 |
| 1989-01-12 08:00 | -19.3°S, 61.0°E | Tropical Disturbance | 15.4 | 997 |
| 1989-01-12 14:00 | -20.2°S, 60.7°E | Tropical Disturbance | 15.4 | 997 |
| 1989-01-12 20:00 | -21.1°S, 61.0°E | Tropical Disturbance | 15.4 | 997 |
| 1989-01-13 02:00 | -21.8°S, 60.5°E | Tropical Disturbance | 15.4 | 997 |
| 1989-01-13 08:00 | -22.2°S, 60.8°E | Tropical Disturbance | 13.4 | 1000 |
| 1989-01-13 14:00 | -22.6°S, 61.2°E | Tropical Disturbance | 13.4 | 1000 |
| 1989-01-13 20:00 | -23.2°S, 62.3°E | Tropical Disturbance | 13.4 | 1000 |
| 1989-01-14 02:00 | -24.0°S, 64.1°E | Tropical Disturbance | 13.4 | 1000 |
| 1989-01-14 08:00 | -24.8°S, 66.3°E | Tropical Disturbance | 13.4 | 1000 |
| 1989-01-14 14:00 | -25.4°S, 68.6°E | Tropical Disturbance | 13.4 | 1000 |
| 1989-01-14 20:00 | -26.6°S, 70.1°E | Tropical Cyclone | - | - |
| 1989-01-15 02:00 | -27.9°S, 71.6°E | Tropical Cyclone | - | - |
| 1989-01-15 08:00 | -29.4°S, 72.6°E | Tropical Cyclone | - | - |
| 1989-01-15 14:00 | -31.0°S, 73.0°E | Tropical Cyclone | - | - |
Data sources: NOAA National Environmental Information Center IBTrACS v04r01 (Knapp et al., 2010), code 1989010S15063. There is no official Chinese name for this system, so 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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