Hurricane Polo
● 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).
Polo at 1990-09-29 02:00:00 (BeijingTime) 在East Pacific首次被记录, peak intensity 为Cat 1 Hurricane, max wind 约 33.4 m/s (1 分钟平均) , minimum central pressure 987 hPa, at 1990-10-02 02:00:00前后结束, total 记录 13 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1990-09-29 02:00 | 9.7°N, 137.1°W | Tropical Depression | 12.9 | 1010 |
| 1990-09-29 08:00 | 10.4°N, 137.5°W | Tropical Depression | 12.9 | 1010 |
| 1990-09-29 14:00 | 11.3°N, 137.8°W | Tropical Depression | 15.4 | 1009 |
| 1990-09-29 20:00 | 12.3°N, 138.1°W | Tropical Depression | 15.4 | 1009 |
| 1990-09-30 02:00 | 13.3°N, 138.3°W | Tropical Storm | 23.1 | 1000 |
| 1990-09-30 08:00 | 14.2°N, 138.7°W | Tropical Storm | 28.3 | 994 |
| 1990-09-30 14:00 | 15.0°N, 139.0°W | Cat 1 Hurricane | 33.4 | 987 |
| 1990-09-30 20:00 | 15.5°N, 139.3°W | Cat 1 Hurricane | 33.4 | 987 |
| 1990-10-01 02:00 | 16.0°N, 139.6°W | Tropical Storm | 25.7 | 997 |
| 1990-10-01 08:00 | 16.2°N, 140.3°W | Tropical Storm | 23.1 | 1000 |
| 1990-10-01 14:00 | 16.3°N, 141.4°W | Tropical Storm | 20.6 | 1003 |
| 1990-10-01 20:00 | 16.1°N, 142.3°W | Tropical Depression | 15.4 | 1009 |
| 1990-10-02 02:00 | 15.5°N, 143.3°W | Tropical Depression | 12.9 | 1010 |
Data sources: NOAA National Environmental Information Center IBTrACS v04r01 (Knapp et al., 2010), code 1990272N10223 / EP201990. There is no official Chinese name for this area; the English name is used. Intensity categories follow the classifications of the local agency in the region where the system occurred, based on 1-min sustained wind converted using the WMO factor, for reference only. Data notes · Incorrect translation?
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