Tropical Cyclone Debra
● 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).
Debra at 1991-02-22 14:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Tropical Cyclone , max wind 约 46.3 m/s (1 分钟平均) , minimum central pressure 966 hPa, at 1991-03-04 14:00:00前后结束, total 记录 41 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1991-02-22 14:00 | -21.2°S, 39.9°E | Tropical Disturbance | 13.4 | 1005 |
| 1991-02-23 02:00 | -23.2°S, 39.1°E | Tropical Disturbance | 13.4 | 1004 |
| 1991-02-23 14:00 | -24.0°S, 37.8°E | Tropical Disturbance | 10.3 | 1004 |
| 1991-02-24 02:00 | -24.8°S, 36.8°E | Tropical Disturbance | 12.9 | 1002 |
| 1991-02-24 14:00 | -25.1°S, 35.8°E | Moderate Tropical Storm | 20.6 | 1000 |
| 1991-02-25 02:00 | -25.4°S, 35.6°E | Severe Tropical Storm | 28.3 | 998 |
| 1991-02-25 14:00 | -25.7°S, 36.0°E | Severe Tropical Storm | 33.4 | 997 |
| 1991-02-26 02:00 | -25.9°S, 36.8°E | Tropical Cyclone | 41.2 | 985 |
| 1991-02-26 14:00 | -25.5°S, 37.8°E | Tropical Cyclone | 46.3 | 972 |
| 1991-02-27 02:00 | -24.8°S, 38.6°E | Tropical Cyclone | 46.3 | 966 |
| 1991-02-27 14:00 | -24.0°S, 38.9°E | Tropical Cyclone | 43.7 | 972 |
| 1991-02-28 02:00 | -24.4°S, 38.4°E | Tropical Cyclone | 38.6 | 976 |
| 1991-02-28 14:00 | -25.1°S, 38.3°E | Severe Tropical Storm | 33.4 | 981 |
| 1991-03-01 02:00 | -25.7°S, 38.4°E | Severe Tropical Storm | 28.3 | 991 |
| 1991-03-01 14:00 | -26.3°S, 38.5°E | Severe Tropical Storm | 28.3 | 991 |
| 1991-03-02 02:00 | -27.0°S, 38.6°E | Severe Tropical Storm | 28.3 | 991 |
| 1991-03-02 14:00 | -27.8°S, 38.2°E | Moderate Tropical Storm | 25.7 | 991 |
| 1991-03-03 02:00 | -29.7°S, 37.5°E | Moderate Tropical Storm | 25.7 | 984 |
| 1991-03-03 14:00 | -33.2°S, 37.8°E | Moderate Tropical Storm | 25.7 | 984 |
| 1991-03-04 02:00 | -38.4°S, 40.4°E | Moderate Tropical Storm | 25.7 | - |
| 1991-03-04 14:00 | -42.9°S, 46.9°E | Moderate Tropical Storm | 25.7 | - |
Data sources: NOAA National Environmental Information Center IBTrACS v04r01 (Knapp et al., 2010), code 1991053S21040 / SH121991. This basin has no official Chinese translated name, so the original English name is used. Intensity categories follow the local agency classification for the basin, converted from 1-minute sustained winds using the WMO factor, for reference only. Data notes · Incorrect translation?
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