Hurricane Greta
● 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.
格雷塔 (Greta) at 1956-10-31 08:00:00 (BeijingTime) 在North Atlantic首次被记录, peak intensity 为Cat 2 Hurricane, max wind 约 43.7 m/s (1 分钟平均) , minimum central pressure 970 hPa, at 1956-11-07 14:00:00前后结束, total 记录 30 track points (6 h一个) . 曾Landfall或贴近land.
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1956-10-31 08:00 | 20.0°N, 74.7°W | Tropical Depression | 12.9 | - |
| 1956-10-31 20:00 | 20.8°N, 75.0°W | Tropical Depression | 12.9 | - |
| 1956-11-01 08:00 | 23.0°N, 75.0°W | Tropical Depression | 15.4 | - |
| 1956-11-01 20:00 | 25.7°N, 73.0°W | Tropical Storm | 23.1 | - |
| 1956-11-02 08:00 | 28.5°N, 72.3°W | Tropical Storm | 25.7 | 992 |
| 1956-11-02 20:00 | 27.8°N, 72.7°W | Tropical Storm | 25.7 | - |
| 1956-11-03 08:00 | 27.0°N, 72.3°W | Tropical Storm | 28.3 | - |
| 1956-11-03 20:00 | 25.7°N, 72.1°W | Tropical Storm | 30.9 | 982 |
| 1956-11-04 08:00 | 23.8°N, 70.7°W | Cat 1 Hurricane | 33.4 | - |
| 1956-11-04 20:00 | 22.6°N, 68.4°W | Cat 1 Hurricane | 41.2 | - |
| 1956-11-05 08:00 | 22.2°N, 65.7°W | Cat 2 Hurricane | 43.7 | - |
| 1956-11-05 20:00 | 25.3°N, 61.7°W | Cat 2 Hurricane | 43.7 | 970 |
| 1956-11-06 08:00 | 28.2°N, 57.5°W | Cat 2 Hurricane | 43.7 | - |
| 1956-11-06 20:00 | 30.4°N, 53.0°W | Extratropical cyclone | 43.7 | - |
| 1956-11-07 08:00 | 32.5°N, 47.0°W | Extratropical cyclone | 33.4 | - |
| 1956-11-07 14:00 | 33.7°N, 42.0°W | Extratropical cyclone | 28.3 | - |
Data sources: NOAA National Environmental Information Center IBTrACS v04r01 (Knapp et al., 2010), code 1956305N20285 / AL081956. Chinese name source: Wikidata Q5947681. Intensity ratings are based on the local agency classification for the relevant sea area (converted from 1-minute sustained wind using the WMO factor), for reference only. Data notes · Incorrect translation?
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