1999South Pacific未命名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 1999-05-20 14:00:00 (BeijingTime) 在South Pacific首次被记录, peak intensity 为Category 2 Tropical Cyclone , max wind 约 30.4 m/s (1 分钟平均) , minimum central pressure 972 hPa, at 1999-05-27 20:00:00前后结束, total 记录 30 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1999-05-20 14:00 | -15.5°S, 156.5°E | Tropical Cyclone | - | - |
| 1999-05-21 02:00 | -16.6°S, 161.4°E | Tropical Cyclone | - | - |
| 1999-05-21 14:00 | -20.0°S, 162.5°E | Tropical Cyclone | - | - |
| 1999-05-22 02:00 | -22.0°S, 161.9°E | Tropical Cyclone | - | - |
| 1999-05-22 14:00 | -23.3°S, 161.9°E | Tropical Cyclone | - | - |
| 1999-05-23 02:00 | -24.6°S, 162.3°E | Tropical Cyclone | - | - |
| 1999-05-23 14:00 | -26.5°S, 161.5°E | Category 2 Tropical Cyclone | 27.8 | 990 |
| 1999-05-24 02:00 | -28.3°S, 160.6°E | Category 2 Tropical Cyclone | 27.8 | 990 |
| 1999-05-24 14:00 | -30.5°S, 159.9°E | Tropical Cyclone | - | - |
| 1999-05-25 02:00 | -33.6°S, 159.9°E | Tropical Cyclone | - | - |
| 1999-05-25 14:00 | -37.8°S, 160.6°E | Category 2 Tropical Cyclone | 30.4 | 986 |
| 1999-05-26 02:00 | -44.0°S, 162.5°E | Category 2 Tropical Cyclone | 30.4 | 980 |
| 1999-05-26 14:00 | -49.5°S, 166.0°E | Category 2 Tropical Cyclone | 27.8 | 978 |
| 1999-05-27 02:00 | -55.5°S, 173.0°E | Category 1 Tropical Cyclone | 24.7 | 972 |
| 1999-05-27 14:00 | -59.0°S, 178.0°W | Tropical Depression | 16.5 | 976 |
| 1999-05-27 20:00 | -60.5°S, 174.0°W | Tropical Depression | 16.5 | 976 |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1999140S16157. No official Chinese name is available for this system, so the original English name is shown. Intensity categories follow the classifications of the local agency in the region, converted from 1-min sustained wind using the WMO factor, and are for reference only. Data notes · Incorrect translation?
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