Tropical Cyclone Grant
● 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).
Grant at 2011-12-23 20:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Category 2 Tropical Cyclone , max wind 约 30.9 m/s (1 分钟平均) , minimum central pressure 979 hPa, at 2011-12-29 20:00:00前后结束, total 记录 25 track points (6 h一个) . 曾Landfall或贴近land.
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 2011-12-23 20:00 | -10.6°S, 132.0°E | Tropical Depression | 13.9 | 999 |
| 2011-12-24 08:00 | -10.6°S, 131.5°E | Tropical Depression | 13.9 | 998 |
| 2011-12-24 20:00 | -10.3°S, 132.2°E | Tropical Depression | 15.4 | 996 |
| 2011-12-25 08:00 | -10.7°S, 132.9°E | Category 1 Tropical Cyclone | 23.1 | 985 |
| 2011-12-25 20:00 | -11.7°S, 132.8°E | Category 2 Tropical Cyclone | 30.9 | 979 |
| 2011-12-26 08:00 | -12.5°S, 132.7°E | Tropical Depression | 15.4 | 990 |
| 2011-12-26 20:00 | -13.2°S, 132.6°E | Tropical Depression | 11.3 | 996 |
| 2011-12-27 08:00 | -13.7°S, 132.9°E | Tropical Depression | 11.3 | 999 |
| 2011-12-27 20:00 | -14.0°S, 134.3°E | Tropical Depression | 11.3 | 1000 |
| 2011-12-28 08:00 | -14.1°S, 135.4°E | Tropical Depression | 11.3 | 1001 |
| 2011-12-28 20:00 | -14.3°S, 137.1°E | Tropical Depression | 13.9 | 1001 |
| 2011-12-29 08:00 | -14.4°S, 139.2°E | Tropical Depression | 11.3 | 1001 |
| 2011-12-29 20:00 | -13.7°S, 140.7°E | Tropical Depression | 11.3 | 1001 |
Data sources: NOAA National Environmental Information Center IBTrACS v04r01 (Knapp et al., 2010), code 2011358S11132 / SH032012. There is no official Chinese name for this system, so the original English name is used. Intensity is classified by the local agency for the region, based on 1-min sustained wind converted using the WMO coefficient, for reference only. Data notes · Incorrect translation?
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