Hurricane Helena
● 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.
Helena at 1963-10-25 14:00:00 (BeijingTime) 在North Atlantic首次被记录, peak intensity 为Tropical Storm, max wind 约 23.1 m/s (1 分钟平均) , minimum central pressure 1002 hPa, at 1963-10-30 20:00:00前后结束, total 记录 22 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1963-10-25 14:00 | 14.8°N, 58.3°W | Tropical Depression | 12.9 | - |
| 1963-10-25 20:00 | 15.0°N, 58.9°W | Tropical Depression | 15.4 | - |
| 1963-10-26 02:00 | 15.2°N, 59.5°W | Tropical Storm | 20.6 | 1005 |
| 1963-10-26 08:00 | 15.4°N, 60.1°W | Tropical Storm | 20.6 | - |
| 1963-10-26 14:00 | 15.5°N, 60.6°W | Tropical Storm | 20.6 | - |
| 1963-10-26 20:00 | 15.6°N, 61.2°W | Tropical Storm | 20.6 | 1004 |
| 1963-10-27 02:00 | 15.7°N, 61.6°W | Tropical Storm | 20.6 | 1005 |
| 1963-10-27 08:00 | 15.8°N, 61.9°W | Tropical Storm | 18 | 1006 |
| 1963-10-27 14:00 | 15.9°N, 62.1°W | Tropical Storm | 18 | - |
| 1963-10-27 20:00 | 16.1°N, 62.2°W | Tropical Storm | 20.6 | - |
| 1963-10-28 02:00 | 16.5°N, 62.2°W | Tropical Storm | 23.1 | 1002 |
| 1963-10-28 08:00 | 16.9°N, 62.0°W | Tropical Storm | 23.1 | - |
| 1963-10-28 14:00 | 17.2°N, 61.4°W | Tropical Storm | 20.6 | - |
| 1963-10-28 20:00 | 17.4°N, 60.9°W | Tropical Storm | 18 | 1007 |
| 1963-10-29 02:00 | 17.8°N, 60.5°W | Tropical Storm | 18 | - |
| 1963-10-29 08:00 | 18.6°N, 60.1°W | Tropical Depression | 15.4 | - |
| 1963-10-29 14:00 | 19.3°N, 59.5°W | Tropical Depression | 12.9 | - |
| 1963-10-29 20:00 | 20.0°N, 58.8°W | Tropical Depression | 12.9 | - |
| 1963-10-30 02:00 | 20.8°N, 58.0°W | Tropical Depression | 12.9 | - |
| 1963-10-30 08:00 | 21.5°N, 56.7°W | Tropical Depression | 12.9 | - |
| 1963-10-30 14:00 | 22.3°N, 55.3°W | Tropical Depression | 12.9 | - |
| 1963-10-30 20:00 | 23.0°N, 54.0°W | Tropical Depression | 12.9 | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1963298N15302 / AL091963. This area has no official Chinese name, so the original English name is used. Intensity categories follow the classifications of local agencies in the relevant basin, converted from 1-minute sustained winds using WMO factors, for reference only. Data notes · Incorrect translation?
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