Tropical Cyclone Grace
● 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).
Grace at 1984-01-11 08:00:00 (BeijingTime) 在South Pacific首次被记录, peak intensity 为Category 2 Tropical Cyclone , max wind 约 33.4 m/s (1 分钟平均) , minimum central pressure 970 hPa, at 1984-01-20 20:00:00前后结束, total 记录 39 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1984-01-11 08:00 | -18.3°S, 148.6°E | Tropical Depression | 11.3 | 1007 |
| 1984-01-11 20:00 | -17.1°S, 149.3°E | Tropical Depression | 11.3 | 1006 |
| 1984-01-12 08:00 | -16.0°S, 149.7°E | Tropical Depression | 12.9 | 1003 |
| 1984-01-12 20:00 | -15.3°S, 150.3°E | Tropical Depression | 18 | 1000 |
| 1984-01-13 08:00 | -14.8°S, 150.9°E | Category 1 Tropical Cyclone | 20.6 | 999 |
| 1984-01-13 20:00 | -15.0°S, 151.2°E | Category 1 Tropical Cyclone | 23.1 | 999 |
| 1984-01-14 08:00 | -15.8°S, 151.0°E | Category 1 Tropical Cyclone | 25.7 | 998 |
| 1984-01-14 20:00 | -16.9°S, 150.9°E | Category 2 Tropical Cyclone | 28.3 | 997 |
| 1984-01-15 08:00 | -18.2°S, 151.0°E | Category 2 Tropical Cyclone | 30.9 | 991 |
| 1984-01-15 20:00 | -19.2°S, 151.7°E | Category 2 Tropical Cyclone | 30.9 | 975 |
| 1984-01-16 08:00 | -20.2°S, 153.0°E | Category 2 Tropical Cyclone | 33.4 | 975 |
| 1984-01-16 20:00 | -21.2°S, 154.8°E | Category 2 Tropical Cyclone | 33.4 | 970 |
| 1984-01-17 08:00 | -22.5°S, 155.7°E | Category 2 Tropical Cyclone | 30.9 | 976 |
| 1984-01-17 20:00 | -23.4°S, 156.8°E | Category 2 Tropical Cyclone | 28.3 | 980 |
| 1984-01-18 08:00 | -23.7°S, 158.5°E | Category 1 Tropical Cyclone | 25.7 | 982 |
| 1984-01-18 20:00 | -23.8°S, 160.1°E | Category 1 Tropical Cyclone | 23.1 | 997 |
| 1984-01-19 08:00 | -23.7°S, 161.2°E | Category 1 Tropical Cyclone | 20.6 | 997 |
| 1984-01-19 20:00 | -23.4°S, 161.9°E | Tropical Depression | 15.4 | 997 |
| 1984-01-20 08:00 | -23.5°S, 162.4°E | Tropical Cyclone | - | - |
| 1984-01-20 20:00 | -23.4°S, 163.0°E | Tropical Cyclone | - | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1984011S18149 / SH131984. This area has no official Chinese name, so the original English name is shown. Intensity categories follow the classification of the local agency for that basin (converted from 1-min sustained wind using the WMO factor), for reference only. Data notes · Incorrect translation?
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