Tropical Cyclone Ella
● 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).
Ella at 1999-02-09 02:00:00 (BeijingTime) 在South Pacific首次被记录, peak intensity 为Category 1 Tropical Cyclone , max wind 约 23.1 m/s (1 分钟平均) , minimum central pressure 987 hPa, at 1999-02-16 08:00:00前后结束, total 记录 30 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1999-02-09 02:00 | -13.1°S, 160.1°E | Tropical Depression | 12.9 | - |
| 1999-02-09 14:00 | -13.0°S, 160.4°E | Tropical Depression | 12.9 | - |
| 1999-02-10 02:00 | -12.2°S, 160.6°E | Tropical Depression | 12.9 | - |
| 1999-02-10 14:00 | -11.3°S, 161.0°E | Tropical Depression | 18 | 999 |
| 1999-02-11 02:00 | -11.1°S, 162.0°E | Tropical Depression | 18 | 997 |
| 1999-02-11 14:00 | -12.0°S, 163.8°E | Category 1 Tropical Cyclone | 20.6 | 990 |
| 1999-02-12 02:00 | -15.3°S, 165.0°E | Category 1 Tropical Cyclone | 20.6 | 987 |
| 1999-02-12 14:00 | -19.3°S, 166.1°E | Category 1 Tropical Cyclone | 20.6 | 990 |
| 1999-02-13 02:00 | -22.0°S, 167.6°E | Category 1 Tropical Cyclone | 23.1 | 995 |
| 1999-02-13 14:00 | -24.5°S, 169.6°E | Category 1 Tropical Cyclone | 20.6 | 995 |
| 1999-02-14 02:00 | -25.6°S, 170.1°E | Tropical Depression | 15.4 | 999 |
| 1999-02-14 14:00 | -26.4°S, 170.2°E | Tropical Depression | 12.9 | 1001 |
| 1999-02-15 02:00 | -27.0°S, 170.0°E | Tropical Depression | 13.9 | 1002 |
| 1999-02-15 14:00 | -27.6°S, 169.0°E | Tropical Depression | 13.9 | 1006 |
| 1999-02-16 02:00 | -28.6°S, 167.0°E | Tropical Depression | 13.9 | 1006 |
| 1999-02-16 08:00 | -29.0°S, 166.0°E | Tropical Depression | 13.9 | 1006 |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010); code 1999040S13160 / SH191999. This basin has no official Chinese name, so the original English name is used. Intensity categories follow the local agency classification for the basin, converted from 1-minute sustained wind using the WMO factor, and are for reference only. Data notes · Incorrect translation?
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