Hurricane Blas
● 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).
Blas at 2004-07-12 20:00:00 (BeijingTime) 在East Pacific首次被记录, peak intensity 为Tropical Storm, max wind 约 28.3 m/s (1 分钟平均) , minimum central pressure 991 hPa, at 2004-07-19 14:00:00前后结束, total 记录 28 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 2004-07-12 20:00 | 14.6°N, 105.5°W | Tropical Depression | 15.4 | 1006 |
| 2004-07-13 08:00 | 16.4°N, 108.0°W | Tropical Storm | 23.1 | 997 |
| 2004-07-13 20:00 | 18.4°N, 110.8°W | Tropical Storm | 28.3 | 991 |
| 2004-07-14 08:00 | 20.7°N, 113.7°W | Tropical Storm | 23.1 | 997 |
| 2004-07-14 20:00 | 22.1°N, 116.6°W | Tropical Storm | 18 | 1002 |
| 2004-07-15 08:00 | 22.9°N, 119.2°W | Tropical Depression | 15.4 | 1005 |
| 2004-07-15 20:00 | 23.4°N, 121.4°W | Tropical Depression | 12.9 | 1007 |
| 2004-07-16 08:00 | 23.8°N, 123.3°W | Tropical Depression | 12.9 | 1008 |
| 2004-07-16 20:00 | 24.1°N, 125.5°W | Tropical Depression | 10.3 | 1008 |
| 2004-07-17 08:00 | 24.4°N, 127.0°W | Tropical Depression | 10.3 | 1009 |
| 2004-07-17 20:00 | 25.2°N, 127.8°W | Tropical Depression | 10.3 | 1009 |
| 2004-07-18 08:00 | 26.0°N, 128.3°W | Tropical Depression | 7.7 | 1010 |
| 2004-07-18 20:00 | 26.7°N, 128.2°W | Tropical Depression | 7.7 | 1012 |
| 2004-07-19 08:00 | 26.9°N, 127.6°W | Tropical Depression | 7.7 | 1014 |
| 2004-07-19 14:00 | 26.9°N, 127.3°W | Tropical Depression | 7.7 | 1015 |
Data sources: NOAA National Environmental Information Center IBTrACS v04r01 (Knapp et al., 2010); code 2004195N15255 / EP032004. There is no official Chinese name for this storm, so the original English name is used. Intensity is classified by the relevant local agency in the basin, based on 1-minute sustained winds converted using the WMO factor, for reference only. Data notes · Incorrect translation?
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