Unnamed 1959 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 1959-02-08 02:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Tropical Depression, max wind 约 12.9 m/s (1 分钟平均) , at 1959-02-12 08:00:00前后结束, total 记录 18 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1959-02-08 02:00 | -10.0°S, 96.0°E | Tropical Depression | 5.1 | - |
| 1959-02-08 08:00 | -10.0°S, 96.0°E | Tropical Depression | 5.1 | - |
| 1959-02-08 14:00 | -10.5°S, 96.0°E | Tropical Depression | 5.1 | - |
| 1959-02-08 20:00 | -11.2°S, 96.2°E | Tropical Depression | 5.1 | - |
| 1959-02-09 02:00 | -11.8°S, 96.3°E | Tropical Depression | 5.1 | - |
| 1959-02-09 08:00 | -12.2°S, 96.4°E | Tropical Depression | 10.3 | - |
| 1959-02-09 14:00 | -12.8°S, 96.2°E | Tropical Depression | 12.9 | - |
| 1959-02-09 20:00 | -13.5°S, 95.8°E | Tropical Depression | 12.9 | - |
| 1959-02-10 02:00 | -14.1°S, 95.5°E | Tropical Depression | 10.3 | - |
| 1959-02-10 08:00 | -14.4°S, 95.9°E | Tropical Depression | 5.1 | - |
| 1959-02-10 14:00 | -13.6°S, 97.7°E | Tropical Depression | 5.1 | - |
| 1959-02-10 20:00 | -12.4°S, 99.3°E | Tropical Depression | 5.1 | - |
| 1959-02-11 02:00 | -12.2°S, 99.7°E | Tropical Depression | 5.1 | - |
| 1959-02-11 08:00 | -12.5°S, 98.9°E | Tropical Depression | 5.1 | - |
| 1959-02-11 14:00 | -12.8°S, 98.0°E | Tropical Depression | 5.1 | - |
| 1959-02-11 20:00 | -13.1°S, 97.1°E | Tropical Depression | 5.1 | - |
| 1959-02-12 02:00 | -13.4°S, 96.2°E | Tropical Cyclone | - | - |
| 1959-02-12 08:00 | -13.7°S, 95.3°E | Tropical Cyclone | - | - |
Data sources: NOAA National Environmental Information Center IBTrACS v04r01 (Knapp et al., 2010), code 1959039S10096 / SH161959. There is no official Chinese translation for this system, so the original English designation is used. Intensity grades follow the classifications of the local agency in the relevant sea area, converted from 1-minute sustained winds using the WMO factor, and are for reference only. Data notes · Incorrect translation?
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