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 1988-09-20 02:00:00 (BeijingTime) 在North Atlantic首次被记录, peak intensity 为Cat 4 Hurricane, max wind 约 64.3 m/s (1 分钟平均) , minimum central pressure 938 hPa, at 1988-09-30 20:00:00前后结束, total 记录 44 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1988-09-20 02:00 | 13.4°N, 31.6°W | Tropical Depression | 15.4 | 1009 |
| 1988-09-20 14:00 | 13.2°N, 33.8°W | Tropical Storm | 18 | 1008 |
| 1988-09-21 02:00 | 12.4°N, 35.7°W | Tropical Storm | 23.1 | 1002 |
| 1988-09-21 14:00 | 12.0°N, 37.7°W | Tropical Storm | 30.9 | 993 |
| 1988-09-22 02:00 | 12.4°N, 39.9°W | Cat 1 Hurricane | 38.6 | 983 |
| 1988-09-22 14:00 | 13.0°N, 41.5°W | Cat 2 Hurricane | 46.3 | 972 |
| 1988-09-23 02:00 | 13.5°N, 43.1°W | Cat 3 Hurricane | 51.4 | 959 |
| 1988-09-23 14:00 | 14.1°N, 44.9°W | Cat 4 Hurricane | 59.2 | 945 |
| 1988-09-24 02:00 | 15.3°N, 46.1°W | Cat 4 Hurricane | 64.3 | 938 |
| 1988-09-24 14:00 | 16.6°N, 47.5°W | Cat 4 Hurricane | 61.7 | 944 |
| 1988-09-25 02:00 | 18.1°N, 48.5°W | Cat 3 Hurricane | 56.6 | 954 |
| 1988-09-25 14:00 | 19.4°N, 49.0°W | Cat 3 Hurricane | 51.4 | 963 |
| 1988-09-26 02:00 | 20.9°N, 49.3°W | Cat 2 Hurricane | 46.3 | 968 |
| 1988-09-26 14:00 | 23.4°N, 49.7°W | Cat 2 Hurricane | 43.7 | 973 |
| 1988-09-27 02:00 | 25.8°N, 50.3°W | Cat 1 Hurricane | 41.2 | 976 |
| 1988-09-27 14:00 | 28.2°N, 51.9°W | Cat 1 Hurricane | 38.6 | 979 |
| 1988-09-28 02:00 | 30.9°N, 51.9°W | Cat 1 Hurricane | 38.6 | 979 |
| 1988-09-28 14:00 | 32.8°N, 51.0°W | Cat 1 Hurricane | 41.2 | 977 |
| 1988-09-29 02:00 | 34.7°N, 49.5°W | Cat 2 Hurricane | 43.7 | 972 |
| 1988-09-29 14:00 | 38.0°N, 46.5°W | Cat 2 Hurricane | 46.3 | 970 |
| 1988-09-30 02:00 | 42.9°N, 42.0°W | Cat 1 Hurricane | 38.6 | 979 |
| 1988-09-30 14:00 | 50.2°N, 34.5°W | Cat 1 Hurricane | 33.4 | 990 |
| 1988-09-30 20:00 | 55.0°N, 30.0°W | Extratropical cyclone | 30.9 | 992 |
Data sources: NOAA National Environmental Information Center IBTrACS v04r01 (Knapp et al., 2010), code 1988264N13328 / AL091988. There is no official Chinese name for this system, so the original English name is used. Intensity is classified by the local agency in the relevant basin, using WMO wind conversion factors, for reference only. Data notes · Incorrect translation?
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