1999South Indian Ocean未命名Tropical Cyclone
● 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).
未命名 at 1999-02-02 08:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Category 1 Tropical Cyclone , max wind 约 20.6 m/s (1 分钟平均) , at 1999-02-11 20:00:00前后结束, total 记录 39 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1999-02-02 08:00 | -13.6°S, 117.5°E | Tropical Depression | 12.9 | - |
| 1999-02-02 20:00 | -14.4°S, 118.4°E | Tropical Depression | 12.9 | - |
| 1999-02-03 08:00 | -15.0°S, 119.0°E | Tropical Depression | 12.9 | - |
| 1999-02-03 20:00 | -15.7°S, 119.1°E | Tropical Depression | 12.9 | - |
| 1999-02-04 08:00 | -16.9°S, 118.5°E | Tropical Depression | 12.9 | - |
| 1999-02-04 20:00 | -17.7°S, 116.9°E | Tropical Depression | 12.9 | - |
| 1999-02-05 08:00 | -18.7°S, 115.2°E | Tropical Depression | 18 | - |
| 1999-02-05 20:00 | -18.9°S, 113.1°E | Tropical Depression | 18 | - |
| 1999-02-06 08:00 | -18.8°S, 111.2°E | Category 1 Tropical Cyclone | 20.6 | - |
| 1999-02-06 20:00 | -18.3°S, 109.7°E | Category 1 Tropical Cyclone | 20.6 | - |
| 1999-02-07 08:00 | -18.6°S, 109.0°E | Tropical Depression | 18 | - |
| 1999-02-07 20:00 | -18.7°S, 108.6°E | Tropical Depression | 18 | - |
| 1999-02-08 08:00 | -19.1°S, 107.9°E | Tropical Depression | 18 | - |
| 1999-02-08 20:00 | -18.8°S, 107.6°E | Tropical Depression | 18 | - |
| 1999-02-09 08:00 | -18.6°S, 108.4°E | Tropical Depression | 15.4 | - |
| 1999-02-09 20:00 | -18.2°S, 109.5°E | Tropical Depression | 15.4 | - |
| 1999-02-10 08:00 | -17.2°S, 110.6°E | Tropical Depression | 12.9 | - |
| 1999-02-10 20:00 | -16.4°S, 111.9°E | Tropical Depression | 12.9 | - |
| 1999-02-11 08:00 | -15.6°S, 113.7°E | Tropical Depression | 12.9 | - |
| 1999-02-11 20:00 | -16.4°S, 115.8°E | Tropical Depression | 12.9 | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1999033S14118 / SH181999. This basin has no official Chinese name, so the original English designation is used. Intensity categories follow the local agency classification for the basin, converted from 1-min sustained wind using WMO factors, and are for reference only. Data notes · Incorrect translation?
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