Tropical Cyclone Itsang/Itseng/Oscar
● 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).
Itsang/Itseng/Oscar at 2004-03-21 08:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Category 4 tropical cyclone , max wind 约 59.2 m/s (1 分钟平均) , minimum central pressure 940 hPa, at 2004-03-29 20:00:00前后结束, total 记录 35 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 2004-03-21 08:00 | -12.3°S, 103.4°E | Tropical Depression | 7.7 | 1004 |
| 2004-03-21 20:00 | -13.9°S, 103.5°E | Tropical Depression | 12.9 | 1004 |
| 2004-03-22 08:00 | -14.7°S, 102.6°E | Tropical Depression | 12.9 | 1004 |
| 2004-03-22 20:00 | -14.8°S, 101.1°E | Tropical Depression | 12.9 | 1002 |
| 2004-03-23 08:00 | -14.7°S, 99.8°E | Tropical Depression | 12.9 | 998 |
| 2004-03-23 20:00 | -14.5°S, 98.5°E | Tropical Depression | 15.4 | 992 |
| 2004-03-24 08:00 | -14.4°S, 96.9°E | Category 1 Tropical Cyclone | 23.1 | 985 |
| 2004-03-24 20:00 | -14.7°S, 95.4°E | Category 2 Tropical Cyclone | 28.3 | 980 |
| 2004-03-25 08:00 | -15.3°S, 93.8°E | Category 2 Tropical Cyclone | 33.4 | 975 |
| 2004-03-25 20:00 | -16.2°S, 92.9°E | Category 3 tropical cyclone | 41.2 | 965 |
| 2004-03-26 08:00 | -16.9°S, 92.4°E | Category 4 tropical cyclone | 59.2 | 940 |
| 2004-03-26 20:00 | -17.5°S, 92.0°E | Category 4 tropical cyclone | 56.6 | 940 |
| 2004-03-27 08:00 | -18.1°S, 91.2°E | Category 3 tropical cyclone | 43.7 | 950 |
| 2004-03-27 20:00 | -19.0°S, 90.4°E | Category 2 Tropical Cyclone | 28.3 | 970 |
| 2004-03-28 08:00 | -19.6°S, 89.1°E | Tropical Disturbance | 15.4 | 990 |
| 2004-03-28 20:00 | -19.7°S, 89.1°E | Tropical Depression | 16.5 | 999 |
| 2004-03-29 08:00 | -21.1°S, 87.7°E | Tropical Depression | 16.5 | 1000 |
| 2004-03-29 20:00 | -20.6°S, 86.0°E | Tropical Depression | 16.5 | 1004 |
Data sources: NOAA National Environmental Information Center IBTrACS v04r01 (Knapp et al., 2010); codes 2004081S12103 / SH202004. No official Chinese name is available for this basin, so the original English name is used. Intensity categories follow the classifications of the local agency in the relevant basin, converted from 1-minute sustained winds using the WMO factor, and are for reference only. Data notes · Incorrect translation?
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