Hurricane Ilsa
● Data reliability: Generally reliable——Aircraft entered typhoons for in situ measurements, but satellites were not yet widespread: tracks are generally accurate, while intensities may be biased, with weaker cyclones potentially going unrecorded from 1950 until the advent of satellite coverage.
Ilsa at 1958-09-24 14:00:00 (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 956 hPa, at 1958-09-30 14:00:00前后结束, total 记录 25 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1958-09-24 14:00 | 17.5°N, 51.5°W | Tropical Storm | 25.7 | - |
| 1958-09-25 02:00 | 17.9°N, 54.3°W | Tropical Storm | 25.7 | 998 |
| 1958-09-25 14:00 | 18.1°N, 56.8°W | Tropical Storm | 30.9 | - |
| 1958-09-26 02:00 | 18.6°N, 59.3°W | Cat 1 Hurricane | 36 | 980 |
| 1958-09-26 14:00 | 19.4°N, 60.5°W | Cat 2 Hurricane | 46.3 | 962 |
| 1958-09-27 02:00 | 20.0°N, 61.1°W | Cat 2 Hurricane | 48.9 | 957 |
| 1958-09-27 14:00 | 20.9°N, 61.3°W | Cat 1 Hurricane | 36 | 984 |
| 1958-09-28 02:00 | 23.2°N, 61.0°W | Cat 1 Hurricane | 33.4 | - |
| 1958-09-28 14:00 | 25.9°N, 61.5°W | Cat 1 Hurricane | 33.4 | 989 |
| 1958-09-29 02:00 | 29.3°N, 61.8°W | Cat 1 Hurricane | 41.2 | 980 |
| 1958-09-29 14:00 | 32.9°N, 59.4°W | Cat 1 Hurricane | 41.2 | 978 |
| 1958-09-30 02:00 | 37.4°N, 54.9°W | Cat 1 Hurricane | 41.2 | - |
| 1958-09-30 14:00 | 43.8°N, 46.0°W | Extratropical cyclone | 30.9 | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010); identifier 1958267N18309 / AL091958. This storm has no official Chinese name and is displayed under its original English name. Intensity is classified by the local agency for 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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