Unnamed 1999 South Indian Ocean 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 1999-03-03 08:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Tropical Depression, max wind 约 18 m/s (1 分钟平均) , at 1999-03-11 02:00:00前后结束, total 记录 32 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1999-03-03 08:00 | -12.0°S, 121.4°E | Tropical Depression | 12.9 | - |
| 1999-03-03 20:00 | -12.5°S, 120.0°E | Tropical Depression | 12.9 | - |
| 1999-03-04 08:00 | -13.3°S, 117.9°E | Tropical Depression | 12.9 | - |
| 1999-03-04 20:00 | -14.0°S, 114.7°E | Tropical Depression | 12.9 | - |
| 1999-03-05 08:00 | -14.5°S, 111.6°E | Tropical Depression | 12.9 | - |
| 1999-03-05 20:00 | -13.8°S, 107.8°E | Tropical Depression | 12.9 | - |
| 1999-03-06 08:00 | -13.9°S, 104.4°E | Tropical Depression | 12.9 | - |
| 1999-03-06 20:00 | -14.1°S, 101.6°E | Tropical Depression | 12.9 | - |
| 1999-03-07 08:00 | -14.9°S, 98.5°E | Tropical Depression | 15.4 | - |
| 1999-03-07 20:00 | -14.6°S, 96.0°E | Tropical Depression | 15.4 | - |
| 1999-03-08 08:00 | -14.8°S, 93.8°E | Tropical Depression | 18 | - |
| 1999-03-08 20:00 | -14.5°S, 90.2°E | Tropical Depression | 15.4 | - |
| 1999-03-09 08:00 | -13.9°S, 86.4°E | Tropical Disturbance | 15.4 | - |
| 1999-03-09 20:00 | -13.1°S, 82.7°E | Tropical Disturbance | 15.4 | - |
| 1999-03-10 08:00 | -12.5°S, 78.6°E | Tropical Disturbance | 12.9 | - |
| 1999-03-10 20:00 | -12.7°S, 73.0°E | Tropical Disturbance | 12.9 | - |
| 1999-03-11 02:00 | -13.0°S, 70.9°E | Tropical Disturbance | 12.9 | - |
Data sources: NOAA National Environmental Information Center IBTrACS v04r01 (Knapp et al., 2010), code 1999062S12121 / SH261999. This basin has no official Chinese translated name, so the original English name is used. Intensity is classified by the local agency in the basin, based on the conversion of 1-min sustained wind using the WMO factor, for reference only. Data notes · Incorrect translation?
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