Tropical Cyclone Thelma
● 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).
Thelma at 1998-12-01 08:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Category 5 Tropical Cyclone , max wind 约 69.4 m/s (1 分钟平均) , minimum central pressure 920 hPa, at 1998-12-15 14:00:00前后结束, total 记录 58 track points (6 h一个) . 曾Landfall或贴近land.
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1998-12-01 08:00 | -12.0°S, 138.0°E | Tropical Depression | 8.2 | 1007 |
| 1998-12-02 02:00 | -11.4°S, 136.8°E | Tropical Depression | 8.2 | 1005 |
| 1998-12-02 20:00 | -10.9°S, 135.9°E | Tropical Depression | 8.2 | 1007 |
| 1998-12-03 14:00 | -10.3°S, 135.0°E | Tropical Depression | 8.2 | 1004 |
| 1998-12-04 08:00 | -9.9°S, 134.0°E | Tropical Depression | 12.9 | 1006 |
| 1998-12-05 02:00 | -9.5°S, 132.6°E | Tropical Depression | 12.9 | 1002 |
| 1998-12-05 20:00 | -9.2°S, 131.4°E | Tropical Depression | 12.9 | 1000 |
| 1998-12-06 14:00 | -9.3°S, 131.3°E | Category 1 Tropical Cyclone | 23.1 | 990 |
| 1998-12-07 08:00 | -9.5°S, 131.2°E | Category 2 Tropical Cyclone | 30.9 | 975 |
| 1998-12-08 02:00 | -10.8°S, 130.5°E | Category 4 tropical cyclone | 59.2 | 945 |
| 1998-12-08 20:00 | -11.6°S, 129.2°E | Category 5 Tropical Cyclone | 69.4 | 920 |
| 1998-12-09 14:00 | -12.2°S, 128.0°E | Category 5 Tropical Cyclone | 66.9 | 925 |
| 1998-12-10 08:00 | -13.0°S, 126.4°E | Category 5 Tropical Cyclone | 66.9 | 930 |
| 1998-12-11 02:00 | -14.4°S, 125.2°E | Category 5 Tropical Cyclone | 61.7 | 950 |
| 1998-12-11 20:00 | -16.3°S, 125.0°E | Category 2 Tropical Cyclone | 33.4 | 990 |
| 1998-12-12 14:00 | -17.8°S, 124.4°E | Tropical Depression | 18 | - |
| 1998-12-13 08:00 | -18.8°S, 122.9°E | Category 1 Tropical Cyclone | 20.6 | - |
| 1998-12-14 02:00 | -19.2°S, 121.4°E | Tropical Depression | 18 | - |
| 1998-12-14 20:00 | -19.8°S, 119.8°E | Tropical Depression | 18 | - |
| 1998-12-15 14:00 | -21.0°S, 119.4°E | Tropical Depression | 15.4 | - |
Data sources: NOAA National Environmental Information Center IBTrACS v04r01 (Knapp et al., 2010), code 1998335S12138 / SH061999. There is no official Chinese name for this basin, so the original English name is used. Intensity is classified by the local agency in the region and converted from 1-minute sustained winds using the WMO factor for reference only. Data notes · Incorrect translation?
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