Hurricane Gretchen
● 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).
Gretchen at 1974-07-17 08:00:00 (BeijingTime) 在East Pacific首次被记录, peak intensity 为Cat 2 Hurricane, max wind 约 43.7 m/s (1 分钟平均) , at 1974-07-21 08:00:00前后结束, total 记录 17 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1974-07-17 08:00 | 14.3°N, 115.7°W | Tropical Depression | 15.4 | - |
| 1974-07-17 14:00 | 14.9°N, 114.8°W | Tropical Depression | 15.4 | - |
| 1974-07-17 20:00 | 15.6°N, 114.0°W | Tropical Depression | 15.4 | - |
| 1974-07-18 02:00 | 16.3°N, 113.3°W | Tropical Depression | 15.4 | - |
| 1974-07-18 08:00 | 17.0°N, 112.7°W | Tropical Depression | 15.4 | - |
| 1974-07-18 14:00 | 17.8°N, 112.0°W | Tropical Depression | 15.4 | - |
| 1974-07-18 20:00 | 18.6°N, 111.4°W | Tropical Depression | 15.4 | - |
| 1974-07-19 02:00 | 20.7°N, 111.3°W | Tropical Storm | 25.7 | - |
| 1974-07-19 08:00 | 22.3°N, 112.6°W | Cat 2 Hurricane | 43.7 | - |
| 1974-07-19 14:00 | 22.8°N, 114.6°W | Cat 1 Hurricane | 36 | - |
| 1974-07-19 20:00 | 23.0°N, 116.7°W | Cat 1 Hurricane | 36 | - |
| 1974-07-20 02:00 | 23.0°N, 118.0°W | Tropical Storm | 20.6 | - |
| 1974-07-20 08:00 | 23.0°N, 119.0°W | Tropical Storm | 20.6 | - |
| 1974-07-20 14:00 | 23.9°N, 119.5°W | Tropical Storm | 18 | - |
| 1974-07-20 20:00 | 25.0°N, 120.0°W | Tropical Depression | 15.4 | - |
| 1974-07-21 02:00 | 25.2°N, 121.0°W | Tropical Depression | 15.4 | - |
| 1974-07-21 08:00 | 25.0°N, 122.0°W | Tropical Depression | 12.9 | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1974198N14244 / EP071974. This storm has no official Chinese name, so the original English name is used. Intensity is classified by the local agency for the basin, based on 1-min sustained wind converted using the WMO factor, for reference only. Data notes · Incorrect translation?
Download