1957South Indian Ocean未命名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 1957-01-26 02:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为2级Tropical Cyclone , max wind 约 28.3 m/s (1 分钟平均) , at 1957-02-09 08:00:00前后结束, total 记录 58 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1957-01-26 02:00 | -9.0°S, 99.0°E | Tropical Depression | 12.9 | - |
| 1957-01-26 20:00 | -9.3°S, 97.9°E | Tropical Depression | 12.9 | - |
| 1957-01-27 14:00 | -10.0°S, 95.5°E | Tropical Depression | 10.3 | - |
| 1957-01-28 08:00 | -11.2°S, 93.5°E | Tropical Depression | 10.3 | - |
| 1957-01-29 02:00 | -12.4°S, 93.2°E | Tropical Depression | 18 | - |
| 1957-01-29 20:00 | -13.4°S, 93.0°E | Tropical Depression | 12.9 | - |
| 1957-01-30 14:00 | -14.8°S, 92.8°E | Tropical Depression | 12.9 | - |
| 1957-01-31 08:00 | -16.2°S, 93.1°E | Tropical Depression | 12.9 | - |
| 1957-02-01 02:00 | -18.1°S, 94.0°E | Tropical Depression | 12.9 | - |
| 1957-02-01 20:00 | -18.9°S, 96.0°E | Tropical Depression | 15.4 | - |
| 1957-02-02 14:00 | -20.2°S, 99.3°E | Tropical Depression | 18 | - |
| 1957-02-03 08:00 | -20.7°S, 101.9°E | Tropical Depression | 12.9 | - |
| 1957-02-04 02:00 | -21.0°S, 105.0°E | Tropical Depression | 12.9 | - |
| 1957-02-04 20:00 | -19.4°S, 103.9°E | Tropical Depression | 18 | - |
| 1957-02-05 14:00 | -17.4°S, 100.6°E | Tropical Depression | 10.3 | - |
| 1957-02-06 08:00 | -16.6°S, 100.6°E | Tropical Depression | 10.3 | - |
| 1957-02-07 02:00 | -15.8°S, 101.1°E | Tropical Depression | 10.3 | - |
| 1957-02-07 20:00 | -15.2°S, 102.1°E | Tropical Depression | 7.7 | - |
| 1957-02-08 14:00 | -14.9°S, 103.3°E | Tropical Depression | 10.3 | - |
| 1957-02-09 08:00 | -14.4°S, 104.3°E | Tropical Cyclone | - | - |
Data sources: NOAA National Environmental Information Center IBTrACS v04r01 (Knapp et al., 2010), code 1957026S09099 / SH161957. There is no official Chinese name for this system, so the English name is shown. Intensity categories follow the local agency classification for the basin, converted from 1-minute sustained winds using the WMO factor, and are for reference only. Data notes · Incorrect translation?
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