1957 South Pacific Unnamed Tropical Cyclone
● Data reliability: Generally reliable——Aircraft entered typhoons for in situ measurements, but satellites were not yet widespread: tracks are generally accurate, while intensities may be biased, with weaker cyclones potentially going unrecorded from 1950 until the advent of satellite coverage.
未命名 at 1957-01-16 02:00:00 (BeijingTime) 在South Pacific首次被记录, peak intensity 为Tropical Depression, max wind 约 15.4 m/s (1 分钟平均) , at 1957-01-23 02:00:00前后结束, total 记录 29 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1957-01-16 02:00 | -11.3°S, 161.5°E | Tropical Depression | 15.4 | - |
| 1957-01-16 14:00 | -11.3°S, 161.5°E | Tropical Depression | 7.7 | - |
| 1957-01-17 02:00 | -11.3°S, 162.0°E | Tropical Depression | 7.7 | - |
| 1957-01-17 14:00 | -11.3°S, 162.5°E | Tropical Depression | 7.7 | - |
| 1957-01-18 02:00 | -11.7°S, 162.8°E | Tropical Depression | 10.3 | - |
| 1957-01-18 14:00 | -12.1°S, 163.0°E | Tropical Depression | 10.3 | - |
| 1957-01-19 02:00 | -13.1°S, 163.0°E | Tropical Depression | 7.7 | - |
| 1957-01-19 14:00 | -13.6°S, 162.4°E | Tropical Depression | 7.7 | - |
| 1957-01-20 02:00 | -14.8°S, 161.6°E | Tropical Depression | 7.7 | - |
| 1957-01-20 14:00 | -16.3°S, 160.8°E | Tropical Depression | 7.7 | - |
| 1957-01-21 02:00 | -18.6°S, 159.2°E | Tropical Depression | 15.4 | - |
| 1957-01-21 14:00 | -20.1°S, 157.9°E | Tropical Depression | 15.4 | - |
| 1957-01-22 02:00 | -21.7°S, 157.5°E | Tropical Depression | 15.4 | - |
| 1957-01-22 14:00 | -23.6°S, 158.1°E | Tropical Depression | 12.9 | - |
| 1957-01-23 02:00 | -25.0°S, 160.1°E | Tropical Cyclone | - | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1957016S11162 / SH131957. No official Chinese name is available for this system, so the original English name is used. Intensity grades follow the classifications of local agencies in the region (converted from 1-min sustained wind using WMO factors), for reference only. Data notes · Incorrect translation?