Tropical Cyclone Joni
● 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).
Joni at 2009-03-10 08:00:00 (BeijingTime) 在South Pacific首次被记录, peak intensity 为Category 2 Tropical Cyclone , max wind 约 28.3 m/s (1 分钟平均) , minimum central pressure 980 hPa, at 2009-03-14 20:00:00前后结束, total 记录 19 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 2009-03-10 08:00 | -18.6°S, 156.2°W | Tropical Depression | 12.9 | 1004 |
| 2009-03-10 14:00 | -19.1°S, 156.9°W | Tropical Depression | 12.9 | 1005 |
| 2009-03-10 20:00 | -19.6°S, 157.4°W | Tropical Depression | 12.9 | 1005 |
| 2009-03-11 02:00 | -20.0°S, 157.6°W | Tropical Depression | 15.4 | 1003 |
| 2009-03-11 08:00 | -20.7°S, 158.0°W | Tropical Depression | 15.4 | 1000 |
| 2009-03-11 14:00 | -21.2°S, 158.3°W | Tropical Depression | 18 | 997 |
| 2009-03-11 20:00 | -21.7°S, 158.4°W | Category 1 Tropical Cyclone | 20.6 | 995 |
| 2009-03-12 02:00 | -22.2°S, 158.5°W | Category 2 Tropical Cyclone | 28.3 | 995 |
| 2009-03-12 08:00 | -22.7°S, 158.8°W | Category 2 Tropical Cyclone | 28.3 | 990 |
| 2009-03-12 14:00 | -23.3°S, 159.0°W | Category 2 Tropical Cyclone | 28.3 | 985 |
| 2009-03-12 20:00 | -23.9°S, 159.2°W | Category 2 Tropical Cyclone | 28.3 | 980 |
| 2009-03-13 02:00 | -24.9°S, 159.3°W | Category 2 Tropical Cyclone | 28.3 | 980 |
| 2009-03-13 08:00 | -26.2°S, 159.4°W | Category 2 Tropical Cyclone | 28.3 | 980 |
| 2009-03-13 14:00 | -27.8°S, 159.4°W | Category 2 Tropical Cyclone | 28.3 | 980 |
| 2009-03-13 20:00 | -29.5°S, 159.2°W | Category 1 Tropical Cyclone | 23.1 | 980 |
| 2009-03-14 02:00 | -31.5°S, 158.9°W | Tropical Depression | 18 | 987 |
| 2009-03-14 08:00 | -33.9°S, 158.3°W | Tropical Depression | 18 | 996 |
| 2009-03-14 14:00 | -35.8°S, 157.5°W | Tropical Depression | 18 | 996 |
| 2009-03-14 20:00 | -37.4°S, 156.1°W | Tropical Depression | 15.4 | 1000 |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 2009069S19204 / SH202009. This area has no official Chinese translated name, so the original English name is used. Intensity categories follow the classifications of the local agency in the region, converted from 1-min sustained wind using the WMO factor, and are for reference only. Data notes · Incorrect translation?
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