Unnamed North Indian Ocean cyclone of 1998
● 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 1998-10-11 20:00:00 (BeijingTime) 在North Indian Ocean首次被记录, peak intensity 为Depressions, max wind 约 18 m/s (1 分钟平均) , minimum central pressure 994 hPa, at 1998-10-18 08:00:00前后结束, total 记录 27 track points (6 h一个) . 曾Landfall或贴近land.
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1998-10-11 20:00 | 14.0°N, 67.5°E | Depressions | 13.4 | 1002 |
| 1998-10-12 08:00 | 15.0°N, 66.0°E | Depressions | 13.4 | 1000 |
| 1998-10-12 20:00 | 15.0°N, 66.0°E | Deep Depression | 15.9 | 998 |
| 1998-10-13 08:00 | 15.0°N, 65.5°E | Deep Depression | 15.9 | 998 |
| 1998-10-13 20:00 | 16.0°N, 64.0°E | Depressions | 13.4 | 998 |
| 1998-10-14 08:00 | 16.5°N, 63.5°E | Depressions | 13.4 | 1002 |
| 1998-10-14 20:00 | 17.5°N, 62.0°E | Depressions | 13.4 | 1004 |
| 1998-10-15 08:00 | 16.6°N, 62.4°E | Depressions | 10.3 | 1000 |
| 1998-10-15 20:00 | 16.8°N, 63.9°E | Depressions | 12.9 | 994 |
| 1998-10-16 08:00 | 17.1°N, 65.1°E | Deep Depression | 18 | 996 |
| 1998-10-16 20:00 | 18.7°N, 68.3°E | Deep Depression | 18 | 996 |
| 1998-10-17 08:00 | 20.3°N, 69.5°E | Deep Depression | 18 | 998 |
| 1998-10-17 20:00 | 21.1°N, 69.7°E | Deep Depression | 15.4 | - |
| 1998-10-18 08:00 | 21.8°N, 70.7°E | Depressions | 12.9 | - |
Data sources: NOAA National Environmental Information Center IBTrACS v04r01 (Knapp et al., 2010), code 1998285N14068 / IO051998. There is no official Chinese name for this system, so the English name is used. Intensity is classified according to the local agency in the relevant sea area, converted from 1-minute sustained wind using the WMO factor, for reference only. Data notes · Incorrect translation?
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