Tropical Cyclone Irving
● 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).
Irving at 2018-01-04 08:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Tropical Cyclone , max wind 约 48.9 m/s (1 分钟平均) , minimum central pressure 965 hPa, at 2018-01-11 14:00:00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 |
|---|
| 2018-01-04 08:00 | -8.6°S, 96.1°E | Tropical Depression | 13.9 | 1004 |
| 2018-01-04 20:00 | -9.6°S, 95.4°E | Tropical Depression | 13.9 | 1003 |
| 2018-01-05 08:00 | -10.7°S, 94.4°E | Tropical Depression | 15.4 | 999 |
| 2018-01-05 20:00 | -11.9°S, 93.7°E | Tropical Depression | 18 | 997 |
| 2018-01-06 08:00 | -12.4°S, 91.7°E | Category 1 Tropical Cyclone | 20.6 | 994 |
| 2018-01-06 20:00 | -12.7°S, 90.0°E | Category 1 Tropical Cyclone | 25.7 | 998 |
| 2018-01-07 08:00 | -13.5°S, 87.0°E | Severe Tropical Storm | 30.9 | 990 |
| 2018-01-07 20:00 | -14.7°S, 84.4°E | Tropical Cyclone | 38.6 | 980 |
| 2018-01-08 08:00 | -16.6°S, 81.3°E | Tropical Cyclone | 48.9 | 965 |
| 2018-01-08 20:00 | -18.3°S, 78.3°E | Tropical Cyclone | 46.3 | 965 |
| 2018-01-09 08:00 | -20.2°S, 75.2°E | Tropical Cyclone | 41.2 | 978 |
| 2018-01-09 20:00 | -22.3°S, 72.1°E | Severe Tropical Storm | 33.4 | 984 |
| 2018-01-10 08:00 | -25.5°S, 69.1°E | Severe Tropical Storm | 28.3 | 987 |
| 2018-01-10 20:00 | -30.0°S, 67.9°E | Moderate Tropical Storm | 23.1 | 990 |
| 2018-01-11 08:00 | -36.8°S, 71.5°E | Moderate Tropical Storm | 25.7 | 987 |
| 2018-01-11 14:00 | -40.8°S, 75.9°E | Extratropical cyclone | 25.7 | 985 |
Data sources: NOAA National Environmental Information Center IBTrACS v04r01 (Knapp et al., 2010), code 2018004S09096 / SH042018. There is no official Chinese name for this system, so the original English name is used. Intensity grades follow the classifications of the local agency in the relevant sea area, converted from 1-min sustained wind using the WMO scale factor, for reference only. Data notes · Incorrect translation?
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