Unnamed North Indian Ocean cyclone of 1991
● 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).
未命名 at 1991-09-21 08:00:00 (BeijingTime) 在North Indian Ocean首次被记录, peak intensity 为Depressions, max wind 约 13.4 m/s (1 分钟平均) , minimum central pressure 1000 hPa, at 1991-09-23 02:00:00前后结束, total 记录 8 track points (6 h一个) . 曾Landfall或贴近land.
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1991-09-21 08:00 | 15.0°N, 84.0°E | Tropical Cyclone | - | 1002 |
| 1991-09-21 14:00 | 15.5°N, 83.5°E | Depressions | 13.4 | 1000 |
| 1991-09-21 20:00 | 16.0°N, 82.5°E | Depressions | 13.4 | 1000 |
| 1991-09-22 02:00 | 16.5°N, 81.5°E | Depressions | 13.4 | 1000 |
| 1991-09-22 08:00 | 17.0°N, 81.0°E | Depressions | 13.4 | 1000 |
| 1991-09-22 14:00 | 18.0°N, 80.5°E | Depressions | 13.4 | 1000 |
| 1991-09-22 20:00 | 18.5°N, 80.0°E | Depressions | 8.2 | 1002 |
| 1991-09-23 02:00 | 19.0°N, 80.0°E | Depressions | 8.2 | 1002 |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1991264N15084. There is no official Chinese name for this system; it is displayed under its original English name. Intensity category follows the classification of the local agency for that basin (converted from 1-min sustained wind using the WMO factor), for reference only. Data notes · Incorrect translation?
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