Hurricane Irene/Olivia
● 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).
Irene/Olivia at 1971-09-12 02:00:00 (BeijingTime) 在East Pacific首次被记录, peak intensity 为Cat 3 Hurricane, max wind 约 56.6 m/s (1 分钟平均) , minimum central pressure 948 hPa, at 1971-10-01 08:00:00前后结束, total 记录 78 track points (6 h一个) . 曾Landfall或贴近land.
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1971-09-12 02:00 | 11.0°N, 48.5°W | Tropical Depression | 12.9 | 1009 |
| 1971-09-13 02:00 | 12.4°N, 55.0°W | Tropical Depression | 12.9 | - |
| 1971-09-14 02:00 | 12.3°N, 59.7°W | Tropical Depression | 12.9 | - |
| 1971-09-15 02:00 | 11.9°N, 62.1°W | Tropical Depression | 12.9 | 1007 |
| 1971-09-16 02:00 | 11.5°N, 66.2°W | Tropical Depression | 15.4 | - |
| 1971-09-17 02:00 | 12.6°N, 71.7°W | Tropical Depression | 15.4 | - |
| 1971-09-18 02:00 | 12.1°N, 77.8°W | Tropical Storm | 20.6 | 1004 |
| 1971-09-19 02:00 | 11.4°N, 82.3°W | Tropical Storm | 30.9 | 989 |
| 1971-09-20 02:00 | 11.6°N, 85.0°W | Tropical Storm | 20.6 | - |
| 1971-09-21 02:00 | 12.3°N, 87.8°W | Tropical Storm | 20.6 | - |
| 1971-09-22 02:00 | 13.0°N, 90.9°W | Tropical Storm | 30.9 | - |
| 1971-09-23 02:00 | 13.6°N, 94.1°W | Cat 1 Hurricane | 36 | - |
| 1971-09-24 02:00 | 13.6°N, 97.9°W | Cat 1 Hurricane | 41.2 | - |
| 1971-09-25 02:00 | 14.6°N, 102.8°W | Cat 2 Hurricane | 43.7 | - |
| 1971-09-26 02:00 | 17.3°N, 107.2°W | Cat 3 Hurricane | 51.4 | - |
| 1971-09-27 02:00 | 19.6°N, 109.9°W | Cat 3 Hurricane | 56.6 | 948 |
| 1971-09-28 02:00 | 19.9°N, 112.0°W | Cat 2 Hurricane | 46.3 | 963 |
| 1971-09-29 02:00 | 21.2°N, 113.9°W | Tropical Storm | 28.3 | - |
| 1971-09-30 02:00 | 24.8°N, 114.2°W | Tropical Storm | 18 | 1002 |
| 1971-10-01 02:00 | 27.9°N, 113.2°W | Tropical Depression | 12.9 | - |
| 1971-10-01 08:00 | 28.0°N, 113.0°W | Tropical Depression | 12.9 | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1971255N11312 / AL181971. There is no official Chinese name for this system, so the original English name is used. Intensity is classified by the local agency for the basin, converted from 1-minute sustained winds using WMO factors, and is for reference only. Data notes · Incorrect translation?
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