Tropical Cyclone Irma
● 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).
Irma at 1987-01-19 08:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Tropical Depression, max wind 约 15.4 m/s (1 分钟平均) , minimum central pressure 978 hPa, at 1987-01-22 20:00:00前后结束, total 记录 15 track points (6 h一个) . 曾Landfall或贴近land.
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1987-01-19 08:00 | -12.3°S, 139.7°E | Tropical Depression | 12.9 | 1000 |
| 1987-01-19 14:00 | -12.6°S, 139.0°E | Tropical Depression | 15.4 | 996 |
| 1987-01-19 20:00 | -12.7°S, 138.4°E | Tropical Depression | 15.4 | 994 |
| 1987-01-20 02:00 | -12.9°S, 137.8°E | Tropical Depression | 15.4 | 990 |
| 1987-01-20 08:00 | -13.1°S, 137.2°E | Tropical Depression | 15.4 | 985 |
| 1987-01-20 14:00 | -13.4°S, 136.6°E | Tropical Depression | 15.4 | 978 |
| 1987-01-20 20:00 | -13.6°S, 135.8°E | Tropical Depression | 15.4 | 980 |
| 1987-01-21 02:00 | -14.3°S, 134.9°E | Tropical Depression | 15.4 | 980 |
| 1987-01-21 08:00 | -15.2°S, 134.0°E | Tropical Depression | 15.4 | 984 |
| 1987-01-21 14:00 | -15.9°S, 133.5°E | Tropical Depression | 15.4 | 990 |
| 1987-01-21 20:00 | -16.4°S, 133.1°E | Tropical Depression | 15.4 | 994 |
| 1987-01-22 02:00 | -16.8°S, 132.9°E | Tropical Depression | 15.4 | 996 |
| 1987-01-22 08:00 | -17.3°S, 132.5°E | Tropical Depression | 15.4 | 998 |
| 1987-01-22 14:00 | -17.5°S, 132.1°E | Tropical Depression | 15.4 | 998 |
| 1987-01-22 20:00 | -17.7°S, 132.0°E | Tropical Depression | 15.4 | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1987019S12140 / SH111987. There is no official Chinese name for this storm, so its original English name is used. Intensity is classified by the local agency in the region, converted from 1-minute sustained winds using the WMO factor, for reference only. Data notes · Incorrect translation?
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