Unnamed North Indian Ocean cyclone of 1978
● 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 1978-05-14 08:00:00 (BeijingTime) 在North Indian Ocean首次被记录, peak intensity 为强The Cyclone Storm, max wind 约 30.9 m/s (1 分钟平均) , at 1978-05-17 20:00:00前后结束, total 记录 15 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1978-05-14 08:00 | 11.1°N, 91.0°E | Depressions | 12.9 | - |
| 1978-05-14 14:00 | 12.0°N, 91.2°E | Depressions | 12.9 | - |
| 1978-05-14 20:00 | 12.7°N, 91.4°E | Depressions | 12.9 | - |
| 1978-05-15 02:00 | 13.2°N, 91.5°E | Deep Depression | 15.4 | - |
| 1978-05-15 08:00 | 13.8°N, 91.7°E | Deep Depression | 15.4 | - |
| 1978-05-15 14:00 | 14.3°N, 91.8°E | Deep Depression | 15.4 | - |
| 1978-05-15 20:00 | 14.9°N, 92.0°E | Deep Depression | 18 | - |
| 1978-05-16 02:00 | 15.2°N, 92.1°E | Deep Depression | 18 | - |
| 1978-05-16 08:00 | 15.6°N, 92.2°E | Deep Depression | 18 | - |
| 1978-05-16 14:00 | 16.3°N, 92.3°E | The Cyclone Storm | 20.6 | - |
| 1978-05-16 20:00 | 17.1°N, 92.3°E | The Cyclone Storm | 20.6 | - |
| 1978-05-17 02:00 | 17.7°N, 92.3°E | The Cyclone Storm | 23.1 | - |
| 1978-05-17 08:00 | 18.3°N, 92.3°E | 强The Cyclone Storm | 25.7 | - |
| 1978-05-17 14:00 | 19.1°N, 92.6°E | 强The Cyclone Storm | 30.9 | - |
| 1978-05-17 20:00 | 20.1°N, 93.3°E | The Cyclone Storm | 23.1 | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1978134N11091 / IO011978. This sea area has no official Chinese name, so the original English name is used. Intensity grades follow the classifications of local agencies in the sea area (converted from 1-min sustained wind using the WMO factor), for reference only. Data notes · Incorrect translation?
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