Unnamed 1958 South Indian Ocean 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 1958-01-11 14:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Tropical Depression, max wind 约 15.4 m/s (1 分钟平均) , at 1958-01-16 20:00:00前后结束, total 记录 22 track points (6 h一个) . 曾Landfall或贴近land.
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1958-01-11 14:00 | -11.1°S, 137.0°E | Tropical Depression | 10.3 | - |
| 1958-01-11 20:00 | -11.4°S, 137.2°E | Tropical Depression | 10.3 | - |
| 1958-01-12 02:00 | -11.9°S, 137.3°E | Tropical Depression | 10.3 | - |
| 1958-01-12 08:00 | -12.4°S, 137.4°E | Tropical Depression | 10.3 | - |
| 1958-01-12 14:00 | -13.2°S, 137.4°E | Tropical Depression | 10.3 | - |
| 1958-01-12 20:00 | -14.4°S, 137.3°E | Tropical Depression | 7.7 | - |
| 1958-01-13 02:00 | -14.9°S, 136.9°E | Tropical Depression | 5.1 | - |
| 1958-01-13 08:00 | -13.7°S, 136.0°E | Tropical Depression | 5.1 | - |
| 1958-01-13 14:00 | -13.0°S, 135.8°E | Tropical Depression | 5.1 | - |
| 1958-01-13 20:00 | -12.9°S, 133.9°E | Tropical Depression | 5.1 | - |
| 1958-01-14 02:00 | -13.1°S, 132.5°E | Tropical Depression | 5.1 | - |
| 1958-01-14 08:00 | -13.6°S, 132.3°E | Tropical Depression | 7.7 | - |
| 1958-01-14 14:00 | -14.0°S, 132.4°E | Tropical Depression | 7.7 | - |
| 1958-01-14 20:00 | -14.0°S, 132.4°E | Tropical Depression | 5.1 | - |
| 1958-01-15 02:00 | -14.0°S, 132.0°E | Tropical Depression | 5.1 | - |
| 1958-01-15 08:00 | -13.9°S, 130.7°E | Tropical Depression | 10.3 | - |
| 1958-01-15 14:00 | -14.2°S, 128.6°E | Tropical Depression | 15.4 | - |
| 1958-01-15 20:00 | -15.8°S, 126.0°E | Tropical Depression | 10.3 | - |
| 1958-01-16 02:00 | -16.9°S, 123.8°E | Tropical Depression | 7.7 | - |
| 1958-01-16 08:00 | -16.0°S, 122.6°E | Tropical Depression | 10.3 | - |
| 1958-01-16 14:00 | -15.0°S, 121.9°E | Tropical Depression | 10.3 | - |
| 1958-01-16 20:00 | -15.2°S, 121.4°E | Tropical Depression | 10.3 | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1958011S11137 / SH061958. There is no official Chinese name for this system, so the original English name is shown. Intensity categories follow the local agency classification for the basin, converted from 1-minute sustained wind using the WMO factor, for reference only. Data notes · Incorrect translation?
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