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 1998-05-13 08:00:00 (BeijingTime) 在North Indian Ocean首次被记录, peak intensity 为特强The Cyclone Storm, max wind 约 36 m/s (1 分钟平均) , minimum central pressure 972 hPa, at 1998-05-21 02:00:00前后结束, total 记录 32 track points (6 h一个) . 曾Landfall或贴近land.
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1998-05-13 08:00 | 4.0°N, 85.5°E | Depressions | 7.7 | - |
| 1998-05-13 20:00 | 6.2°N, 86.4°E | Depressions | 10.3 | - |
| 1998-05-14 08:00 | 8.2°N, 86.6°E | Depressions | 10.3 | - |
| 1998-05-14 20:00 | 9.3°N, 85.3°E | Depressions | 10.3 | - |
| 1998-05-15 08:00 | 9.5°N, 83.6°E | Depressions | 10.3 | - |
| 1998-05-15 20:00 | 9.9°N, 81.5°E | Depressions | 10.3 | - |
| 1998-05-16 08:00 | 10.5°N, 80.3°E | Depressions | 12.9 | - |
| 1998-05-16 20:00 | 11.4°N, 81.9°E | Depressions | 12.9 | - |
| 1998-05-17 08:00 | 12.9°N, 85.0°E | Depressions | 12.9 | - |
| 1998-05-17 20:00 | 14.2°N, 87.3°E | Depressions | 12.9 | 998 |
| 1998-05-18 08:00 | 15.1°N, 88.5°E | Depressions | 12.9 | 998 |
| 1998-05-18 20:00 | 17.0°N, 89.4°E | Deep Depression | 15.4 | 994 |
| 1998-05-19 08:00 | 19.1°N, 90.0°E | The Cyclone Storm | 20.6 | 990 |
| 1998-05-19 20:00 | 20.7°N, 90.7°E | 强The Cyclone Storm | 28.3 | 976 |
| 1998-05-20 08:00 | 21.7°N, 91.5°E | 特强The Cyclone Storm | 36 | 972 |
| 1998-05-20 20:00 | 23.7°N, 92.8°E | The Cyclone Storm | 20.6 | - |
| 1998-05-21 02:00 | 24.3°N, 93.8°E | Depressions | 12.9 | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1998133N04086 / IO011998. This basin has no official Chinese translated name, so the original English name is used. Intensity is classified by the local agency in the basin, converted from 1-minute sustained winds using the WMO factor, for reference only. Data notes · Incorrect translation?
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