Unnamed 1998 South Indian Ocean Tropical Cyclone
● 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 1998-01-16 02:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Tropical Depression, max wind 约 18 m/s (1 分钟平均) , minimum central pressure 995 hPa, at 1998-01-23 14:00:00前后结束, total 记录 31 track points (6 h一个) . 曾Landfall或贴近land.
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1998-01-16 02:00 | -12.1°S, 43.0°E | Tropical Disturbance | 11.3 | 1006 |
| 1998-01-16 14:00 | -12.2°S, 42.4°E | Tropical Disturbance | 11.3 | 1004 |
| 1998-01-17 02:00 | -13.8°S, 41.9°E | Tropical Disturbance | 13.9 | 1000 |
| 1998-01-17 14:00 | -15.3°S, 40.5°E | Tropical Disturbance | 15.4 | 998 |
| 1998-01-18 02:00 | -16.2°S, 38.6°E | Tropical Depression | 18 | - |
| 1998-01-18 14:00 | -17.0°S, 36.5°E | Tropical Depression | 18 | - |
| 1998-01-19 02:00 | -18.0°S, 35.7°E | Tropical Disturbance | 15.4 | - |
| 1998-01-19 14:00 | -19.3°S, 35.1°E | Tropical Disturbance | 15.4 | - |
| 1998-01-20 02:00 | -20.7°S, 34.8°E | Tropical Disturbance | 15.4 | - |
| 1998-01-20 14:00 | -22.3°S, 35.4°E | Tropical Disturbance | 15.4 | - |
| 1998-01-21 02:00 | -23.1°S, 36.8°E | Tropical Depression | 18 | 998 |
| 1998-01-21 14:00 | -24.0°S, 38.1°E | Tropical Depression | 18 | 995 |
| 1998-01-22 02:00 | -25.2°S, 40.2°E | Tropical Depression | 18 | 995 |
| 1998-01-22 14:00 | -26.0°S, 42.8°E | Tropical Depression | 18 | 995 |
| 1998-01-23 02:00 | -26.0°S, 45.0°E | Tropical Depression | 18 | 998 |
| 1998-01-23 14:00 | -25.6°S, 46.3°E | Tropical Disturbance | 11.3 | 1002 |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1998016S12043 / SH131998. There is no official Chinese name for this system, so the original English name is used. The intensity category follows the classification of the local agency in the region where the system occurred, converted from 1-minute sustained wind using the WMO factor, for reference only. Data notes · Incorrect translation?
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