1975 Unnamed North Indian Ocean 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 1975-11-24 08:00:00 (BeijingTime) 在North Indian Ocean首次被记录, peak intensity 为Deep Depression, max wind 约 18 m/s (1 分钟平均) , at 1975-12-02 08:00:00前后结束, total 记录 33 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1975-11-24 08:00 | 8.8°N, 84.9°E | Tropical Cyclone | - | - |
| 1975-11-24 20:00 | 9.9°N, 82.8°E | Tropical Cyclone | - | - |
| 1975-11-25 08:00 | 10.8°N, 82.1°E | Tropical Cyclone | - | - |
| 1975-11-25 20:00 | 11.6°N, 81.6°E | Deep Depression | 18 | - |
| 1975-11-26 08:00 | 12.2°N, 81.5°E | Deep Depression | 18 | - |
| 1975-11-26 20:00 | 12.9°N, 81.7°E | Deep Depression | 15.4 | - |
| 1975-11-27 08:00 | 13.7°N, 82.3°E | Deep Depression | 18 | - |
| 1975-11-27 20:00 | 14.3°N, 83.6°E | Deep Depression | 18 | - |
| 1975-11-28 08:00 | 14.4°N, 84.7°E | Deep Depression | 18 | - |
| 1975-11-28 20:00 | 14.6°N, 85.6°E | Deep Depression | 18 | - |
| 1975-11-29 08:00 | 14.8°N, 86.7°E | Deep Depression | 18 | - |
| 1975-11-29 20:00 | 15.0°N, 88.0°E | Deep Depression | 18 | - |
| 1975-11-30 08:00 | 14.6°N, 88.3°E | Deep Depression | 15.4 | - |
| 1975-11-30 20:00 | 14.0°N, 88.0°E | Depressions | 12.9 | - |
| 1975-12-01 08:00 | 14.1°N, 87.2°E | Depressions | 10.3 | - |
| 1975-12-01 20:00 | 14.4°N, 86.6°E | Tropical Cyclone | - | - |
| 1975-12-02 08:00 | 15.2°N, 85.7°E | Tropical Cyclone | - | - |
Data sources: NOAA National Environmental Information Center IBTrACS v04r01 (Knapp et al., 2010), code 1975328N09085 / IO201975. No official Chinese name is available for this basin, so the original English name is displayed. Intensity grades follow the local agency classification in the basin (converted from 1-min sustained wind using the WMO factor), for reference only. Data notes · Incorrect translation?
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