Unnamed 2021 South Pacific 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 2021-04-09 14:00:00 (BeijingTime) 在South Pacific首次被记录, peak intensity 为Category 1 Tropical Cyclone , max wind 约 20.6 m/s (1 分钟平均) , minimum central pressure 995 hPa, at 2021-04-13 08:00:00前后结束, total 记录 16 track points (6 h一个) . 曾Landfall或贴近land.
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 2021-04-09 14:00 | -15.1°S, 158.9°E | Tropical Depression | 10.3 | 1007 |
| 2021-04-09 20:00 | -16.9°S, 161.1°E | Tropical Depression | 12.9 | 1004 |
| 2021-04-10 02:00 | -17.8°S, 161.9°E | Tropical Depression | 12.9 | 1004 |
| 2021-04-10 08:00 | -19.0°S, 162.8°E | Tropical Depression | 12.9 | 1004 |
| 2021-04-10 14:00 | -20.3°S, 164.1°E | Tropical Depression | 12.9 | 1005 |
| 2021-04-10 20:00 | -21.7°S, 165.4°E | Tropical Depression | 15.4 | 1005 |
| 2021-04-11 02:00 | -23.0°S, 166.6°E | Tropical Depression | 18 | 999 |
| 2021-04-11 08:00 | -24.6°S, 167.9°E | Category 1 Tropical Cyclone | 20.6 | 1002 |
| 2021-04-11 14:00 | -26.1°S, 169.2°E | Tropical Depression | 18 | 995 |
| 2021-04-11 20:00 | -27.0°S, 170.5°E | Category 1 Tropical Cyclone | 20.6 | 995 |
| 2021-04-12 02:00 | -28.1°S, 171.8°E | Tropical Depression | 18 | 1000 |
| 2021-04-12 08:00 | -29.1°S, 173.1°E | Tropical Depression | 18 | 998 |
| 2021-04-12 14:00 | -30.1°S, 174.5°E | Extratropical cyclone | 15.4 | 1003 |
| 2021-04-12 20:00 | -30.2°S, 175.7°E | Tropical Cyclone | - | - |
| 2021-04-13 02:00 | -30.5°S, 176.3°E | Tropical Cyclone | - | - |
| 2021-04-13 08:00 | -30.8°S, 177.6°E | Tropical Cyclone | - | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 2021099S15159 / SH282021. There is no official Chinese name for this basin; the original English name is displayed. Intensity categories follow local agency classifications for the basin (converted from 1-minute sustained winds using WMO coefficients) and are for reference only. Data notes · Incorrect translation?
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