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 1991-11-09 14:00:00 (BeijingTime) 在North Indian Ocean首次被记录, peak intensity 为The Cyclone Storm, max wind 约 20.6 m/s (1 分钟平均) , minimum central pressure 998 hPa, at 1991-11-16 20:00:00前后结束, total 记录 30 track points (6 h一个) . 曾Landfall或贴近land.
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1991-11-09 14:00 | 10.0°N, 95.0°E | Depressions | 7.7 | - |
| 1991-11-10 02:00 | 10.3°N, 93.8°E | Depressions | 7.7 | - |
| 1991-11-10 14:00 | 10.6°N, 92.8°E | Depressions | 7.7 | - |
| 1991-11-11 02:00 | 10.8°N, 91.6°E | Depressions | 10.3 | - |
| 1991-11-11 14:00 | 10.8°N, 90.2°E | Depressions | 10.3 | 1008 |
| 1991-11-12 02:00 | 11.1°N, 88.2°E | Depressions | 10.3 | 1006 |
| 1991-11-12 14:00 | 11.2°N, 86.9°E | Depressions | 12.9 | 1004 |
| 1991-11-13 02:00 | 11.3°N, 85.4°E | Depressions | 12.9 | 1004 |
| 1991-11-13 14:00 | 11.2°N, 83.8°E | Depressions | 12.9 | 1004 |
| 1991-11-14 02:00 | 11.1°N, 82.2°E | Deep Depression | 15.4 | 1000 |
| 1991-11-14 14:00 | 10.8°N, 81.0°E | Deep Depression | 18 | 1000 |
| 1991-11-15 02:00 | 11.1°N, 80.2°E | The Cyclone Storm | 20.6 | 998 |
| 1991-11-15 14:00 | 11.7°N, 79.1°E | Deep Depression | 18 | 1002 |
| 1991-11-16 02:00 | 12.1°N, 77.9°E | Depressions | 10.3 | 1002 |
| 1991-11-16 14:00 | 12.6°N, 76.5°E | Depressions | 7.7 | - |
| 1991-11-16 20:00 | 13.0°N, 75.9°E | Depressions | 7.7 | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1991313N10095 / IO041991. No official Chinese name is available for this basin, so the original English name is used. Intensity grades are based on the classifications of the relevant local agencies, converted from 1-minute sustained wind using the WMO factor, for reference only. Data notes · Incorrect translation?