Unnamed 1998 South Pacific 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 1998-12-21 08:00:00 (BeijingTime) 在South Pacific首次被记录, peak intensity 为Category 1 Tropical Cyclone , max wind 约 25.7 m/s (1 分钟平均) , at 1998-12-24 08:00:00前后结束, total 记录 13 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1998-12-21 08:00 | -20.4°S, 150.1°W | Tropical Depression | 12.9 | - |
| 1998-12-21 14:00 | -20.7°S, 150.6°W | Tropical Depression | 12.9 | - |
| 1998-12-21 20:00 | -20.9°S, 150.9°W | Tropical Depression | 14.4 | - |
| 1998-12-22 02:00 | -21.2°S, 151.3°W | Tropical Depression | 15.4 | - |
| 1998-12-22 08:00 | -22.1°S, 151.8°W | Tropical Depression | 18 | - |
| 1998-12-22 14:00 | -23.3°S, 151.6°W | Tropical Depression | 18 | - |
| 1998-12-22 20:00 | -24.6°S, 151.0°W | Tropical Depression | 18 | - |
| 1998-12-23 02:00 | -25.8°S, 150.1°W | Category 1 Tropical Cyclone | 20.6 | - |
| 1998-12-23 08:00 | -27.7°S, 148.3°W | Category 1 Tropical Cyclone | 23.1 | - |
| 1998-12-23 14:00 | -29.9°S, 146.7°W | Category 1 Tropical Cyclone | 23.1 | - |
| 1998-12-23 20:00 | -33.3°S, 143.5°W | Category 1 Tropical Cyclone | 25.7 | - |
| 1998-12-24 02:00 | -36.8°S, 139.7°W | Tropical Depression | 18 | - |
| 1998-12-24 08:00 | -39.9°S, 134.0°W | Tropical Depression | 15.4 | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1998355S20210 / SH081999. This basin has no official Chinese name, so the original English name is used. Intensity categories follow the local agency classification for the basin, converted from 1-min sustained wind using the WMO factor, and are for reference only. Data notes · Incorrect translation?
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