Hurricane Alma
● 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).
Alma at 1974-08-12 20:00:00 (BeijingTime) 在North Atlantic首次被记录, peak intensity 为Tropical Storm, max wind 约 25.7 m/s (1 分钟平均) , minimum central pressure 1007 hPa, at 1974-08-15 20:00:00前后结束, total 记录 13 track points (6 h一个) . 曾Landfall或贴近land.
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1974-08-12 20:00 | 10.3°N, 42.8°W | Tropical Depression | 12.9 | 1010 |
| 1974-08-13 02:00 | 10.2°N, 45.0°W | Tropical Depression | 12.9 | - |
| 1974-08-13 08:00 | 10.2°N, 47.4°W | Tropical Depression | 12.9 | - |
| 1974-08-13 14:00 | 10.1°N, 49.7°W | Tropical Depression | 15.4 | - |
| 1974-08-13 20:00 | 10.1°N, 51.9°W | Tropical Storm | 20.6 | - |
| 1974-08-14 02:00 | 10.0°N, 54.1°W | Tropical Storm | 25.7 | 1007 |
| 1974-08-14 08:00 | 10.1°N, 56.5°W | Tropical Storm | 25.7 | - |
| 1974-08-14 14:00 | 10.1°N, 58.5°W | Tropical Storm | 25.7 | - |
| 1974-08-14 20:00 | 10.2°N, 60.6°W | Tropical Storm | 25.7 | - |
| 1974-08-15 02:00 | 10.3°N, 63.2°W | Tropical Storm | 20.6 | - |
| 1974-08-15 08:00 | 10.4°N, 65.6°W | Tropical Storm | 20.6 | - |
| 1974-08-15 14:00 | 10.5°N, 67.6°W | Tropical Storm | 18 | - |
| 1974-08-15 20:00 | 10.5°N, 70.0°W | Tropical Storm | 18 | - |
Data sources: NOAA National Environmental Information Center IBTrACS v04r01 (Knapp et al., 2010), code 1974225N10317 / AL071974. This area has no official Chinese name, so the original English name is used. Intensity is classified by the local agency for the region, converted from 1-minute sustained winds using the WMO factor, for reference only. Data notes · Incorrect translation?
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