Hurricane Helene
● 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).
Helene at 2018-09-07 20:00:00 (BeijingTime) 在North Atlantic首次被记录, peak intensity 为Cat 2 Hurricane, max wind 约 48.9 m/s (1 分钟平均) , minimum central pressure 967 hPa, at 2018-09-18 02:00:00前后结束, total 记录 42 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 2018-09-07 20:00 | 13.4°N, 16.8°W | Tropical Depression | 15.4 | 1004 |
| 2018-09-08 08:00 | 13.6°N, 18.0°W | Tropical Storm | 18 | 1002 |
| 2018-09-08 20:00 | 13.5°N, 19.9°W | Tropical Storm | 23.1 | 1001 |
| 2018-09-09 08:00 | 13.2°N, 22.2°W | Tropical Storm | 25.7 | 999 |
| 2018-09-09 20:00 | 13.2°N, 24.5°W | Tropical Storm | 30.9 | 996 |
| 2018-09-10 08:00 | 13.7°N, 26.7°W | Cat 1 Hurricane | 38.6 | 984 |
| 2018-09-10 20:00 | 14.4°N, 29.4°W | Cat 2 Hurricane | 43.7 | 977 |
| 2018-09-11 08:00 | 15.3°N, 32.1°W | Cat 2 Hurricane | 48.9 | 969 |
| 2018-09-11 20:00 | 16.2°N, 34.0°W | Cat 2 Hurricane | 48.9 | 967 |
| 2018-09-12 08:00 | 17.6°N, 35.3°W | Cat 2 Hurricane | 43.7 | 973 |
| 2018-09-12 20:00 | 19.8°N, 36.3°W | Cat 1 Hurricane | 41.2 | 976 |
| 2018-09-13 08:00 | 21.9°N, 37.1°W | Cat 1 Hurricane | 36 | 982 |
| 2018-09-13 20:00 | 24.1°N, 37.4°W | Tropical Storm | 30.9 | 988 |
| 2018-09-14 08:00 | 27.2°N, 37.4°W | Tropical Storm | 30.9 | 989 |
| 2018-09-14 20:00 | 31.8°N, 37.2°W | Tropical Storm | 30.9 | 988 |
| 2018-09-15 08:00 | 35.2°N, 36.5°W | Tropical Storm | 30.9 | 986 |
| 2018-09-15 20:00 | 38.4°N, 34.5°W | Tropical Storm | 28.3 | 987 |
| 2018-09-16 08:00 | 40.6°N, 31.5°W | Tropical Storm | 25.7 | 992 |
| 2018-09-16 20:00 | 43.1°N, 27.1°W | Extratropical cyclone | 23.1 | 993 |
| 2018-09-17 08:00 | 45.2°N, 20.0°W | Extratropical cyclone | 25.7 | 992 |
| 2018-09-17 20:00 | 48.0°N, 12.5°W | Extratropical cyclone | 25.7 | 992 |
| 2018-09-18 02:00 | 49.5°N, 10.0°W | Extratropical cyclone | 23.1 | 995 |
Data sources: NOAA National Environmental Information Center IBTrACS v04r01 (Knapp et al., 2010), code 2018251N13343 / AL082018. There is no official Chinese name for this storm; the original English name is shown. Intensity categories follow the classifications of the local agency in the region where the system occurred, converted from 1-minute sustained wind using WMO factors, and are for reference only. Data notes · Incorrect translation?
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