1981South Pacific未命名Tropical Cyclone
● 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).
未命名 at 1981-02-16 08:00:00 (BeijingTime) 在South Pacific首次被记录, peak intensity 为Category 2 Tropical Cyclone , max wind 约 27.8 m/s (1 分钟平均) , minimum central pressure 985 hPa, at 1981-02-21 08:00:00前后结束, total 记录 21 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1981-02-16 08:00 | -18.0°S, 179.0°W | Tropical Depression | 16.5 | 997 |
| 1981-02-16 14:00 | -18.9°S, 178.0°W | Tropical Cyclone | - | - |
| 1981-02-16 20:00 | -19.7°S, 176.7°W | Tropical Depression | 16.5 | 997 |
| 1981-02-17 02:00 | -20.2°S, 174.9°W | Tropical Cyclone | - | - |
| 1981-02-17 08:00 | -20.4°S, 173.0°W | Tropical Depression | 16.5 | 997 |
| 1981-02-17 14:00 | -20.3°S, 171.4°W | Tropical Cyclone | - | - |
| 1981-02-17 20:00 | -20.1°S, 170.0°W | Tropical Depression | 16.5 | 997 |
| 1981-02-18 02:00 | -20.0°S, 168.9°W | Tropical Cyclone | - | - |
| 1981-02-18 08:00 | -19.8°S, 168.0°W | Tropical Depression | 16.5 | 997 |
| 1981-02-18 14:00 | -19.5°S, 167.1°W | Tropical Cyclone | - | - |
| 1981-02-18 20:00 | -19.2°S, 166.0°W | Tropical Depression | 16.5 | 997 |
| 1981-02-19 02:00 | -19.1°S, 164.5°W | Tropical Cyclone | - | - |
| 1981-02-19 08:00 | -19.5°S, 163.0°W | Category 1 Tropical Cyclone | 22.1 | 990 |
| 1981-02-19 14:00 | -20.3°S, 161.6°W | Tropical Cyclone | - | - |
| 1981-02-19 20:00 | -22.0°S, 160.4°W | Category 2 Tropical Cyclone | 27.8 | 985 |
| 1981-02-20 02:00 | -24.9°S, 159.0°W | Tropical Cyclone | - | - |
| 1981-02-20 08:00 | -28.0°S, 158.0°W | Category 1 Tropical Cyclone | 24.7 | 987 |
| 1981-02-20 14:00 | -30.1°S, 157.9°W | Tropical Cyclone | - | - |
| 1981-02-20 20:00 | -32.0°S, 158.0°W | Category 1 Tropical Cyclone | 22.1 | 990 |
| 1981-02-21 02:00 | -34.0°S, 157.7°W | Tropical Cyclone | - | - |
| 1981-02-21 08:00 | -36.0°S, 157.0°W | Tropical Depression | 16.5 | 997 |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1981047S18181. This basin has no official Chinese name, displayed in original English. Intensity classification follows local agency standards for the basin (converted from 1-min sustained wind using WMO coefficients), for reference only. Data notes · Incorrect translation?
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