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 1998-12-12 02:00:00 (BeijingTime) 在North Indian Ocean首次被记录, peak intensity 为强The Cyclone Storm, max wind 约 33.4 m/s (1 分钟平均) , minimum central pressure 993 hPa, at 1998-12-18 02:00:00前后结束, total 记录 25 track points (6 h一个) . 曾Landfall或贴近land.
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1998-12-12 02:00 | 10.3°N, 71.9°E | Depressions | 10.3 | - |
| 1998-12-12 14:00 | 10.3°N, 69.9°E | Depressions | 12.9 | - |
| 1998-12-13 02:00 | 10.4°N, 68.9°E | Deep Depression | 15.4 | - |
| 1998-12-13 14:00 | 11.0°N, 68.2°E | The Cyclone Storm | 23.1 | 1000 |
| 1998-12-14 02:00 | 12.1°N, 67.4°E | 强The Cyclone Storm | 25.7 | 1000 |
| 1998-12-14 14:00 | 13.1°N, 67.2°E | 强The Cyclone Storm | 30.9 | 998 |
| 1998-12-15 02:00 | 14.9°N, 66.8°E | 强The Cyclone Storm | 30.9 | 993 |
| 1998-12-15 14:00 | 16.7°N, 65.7°E | 强The Cyclone Storm | 33.4 | 993 |
| 1998-12-16 02:00 | 17.4°N, 64.3°E | 强The Cyclone Storm | 33.4 | 993 |
| 1998-12-16 14:00 | 18.3°N, 62.0°E | The Cyclone Storm | 20.6 | 998 |
| 1998-12-17 02:00 | 18.8°N, 59.8°E | The Cyclone Storm | 20.6 | - |
| 1998-12-17 14:00 | 18.7°N, 57.4°E | Deep Depression | 18 | - |
| 1998-12-18 02:00 | 20.4°N, 55.5°E | Depressions | 12.9 | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1998346N10072 / IO081998. This basin has no official Chinese name, so the English name is used. Intensity is classified by the regional agency based on the basin where the system occurred, converted from 1-minute sustained winds using the WMO coefficient, for reference only. Data notes · Incorrect translation?
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