Hurricane Alpha
● 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).
Alpha at 2020-09-14 20:00:00 (BeijingTime) 在North Atlantic首次被记录, peak intensity 为Tropical Storm, max wind 约 30.9 m/s (1 分钟平均) , minimum central pressure 992 hPa, at 2020-09-19 08:00:00前后结束, total 记录 19 track points (6 h一个) . 曾Landfall或贴近land.
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 2020-09-14 20:00 | 47.2°N, 22.0°W | Extratropical cyclone | 20.6 | 1002 |
| 2020-09-15 02:00 | 47.2°N, 22.2°W | Extratropical cyclone | 25.7 | 996 |
| 2020-09-15 08:00 | 47.0°N, 22.4°W | Extratropical cyclone | 30.9 | 992 |
| 2020-09-15 14:00 | 46.0°N, 22.5°W | Extratropical cyclone | 30.9 | 994 |
| 2020-09-15 20:00 | 45.0°N, 22.1°W | Extratropical cyclone | 25.7 | 996 |
| 2020-09-16 02:00 | 43.9°N, 21.4°W | Extratropical cyclone | 23.1 | 998 |
| 2020-09-16 08:00 | 42.9°N, 20.5°W | Extratropical cyclone | 20.6 | 1000 |
| 2020-09-16 14:00 | 41.9°N, 19.8°W | Extratropical cyclone | 20.6 | 1000 |
| 2020-09-16 20:00 | 40.9°N, 19.5°W | Extratropical cyclone | 20.6 | 1000 |
| 2020-09-17 02:00 | 39.9°N, 19.3°W | Extratropical cyclone | 20.6 | 1000 |
| 2020-09-17 08:00 | 38.9°N, 18.9°W | Extratropical cyclone | 18 | 1002 |
| 2020-09-17 14:00 | 38.3°N, 18.1°W | Tropical Storm | 18 | 1002 |
| 2020-09-17 20:00 | 37.7°N, 17.3°W | Tropical Storm | 18 | 1002 |
| 2020-09-18 02:00 | 36.7°N, 15.6°W | Tropical Storm | 20.6 | 999 |
| 2020-09-18 08:00 | 36.7°N, 13.1°W | Tropical Storm | 23.1 | 996 |
| 2020-09-18 14:00 | 37.9°N, 11.4°W | Tropical Storm | 23.1 | 996 |
| 2020-09-18 20:00 | 38.9°N, 10.3°W | Tropical Storm | 23.1 | 996 |
| 2020-09-19 02:00 | 39.9°N, 9.1°W | Tropical Storm | 23.1 | 996 |
| 2020-09-19 08:00 | 40.6°N, 7.6°W | Tropical Depression | 15.4 | 1004 |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010); code 2020259N47338 / AL242020. There is no official Chinese name for this system, so the English name is used. Intensity is classified by the local agency in the relevant basin, based on 1-minute sustained winds converted using the WMO factor, for reference only. Data notes · Incorrect translation?
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