1978South 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 1978-11-19 20:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Category 1 Tropical Cyclone , max wind 约 20.6 m/s (1 分钟平均) , at 1978-11-23 08:00:00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 |
|---|
| 1978-11-19 20:00 | -10.2°S, 97.0°E | Tropical Depression | 15.4 | - |
| 1978-11-20 02:00 | -10.5°S, 96.8°E | Tropical Depression | 18 | - |
| 1978-11-20 08:00 | -11.0°S, 96.2°E | Tropical Depression | 18 | - |
| 1978-11-20 14:00 | -12.0°S, 95.1°E | Category 1 Tropical Cyclone | 20.6 | - |
| 1978-11-20 20:00 | -12.9°S, 94.0°E | Category 1 Tropical Cyclone | 20.6 | - |
| 1978-11-21 02:00 | -13.1°S, 93.9°E | Category 1 Tropical Cyclone | 20.6 | - |
| 1978-11-21 08:00 | -13.3°S, 93.6°E | Category 1 Tropical Cyclone | 20.6 | - |
| 1978-11-21 14:00 | -13.6°S, 92.3°E | Category 1 Tropical Cyclone | 20.6 | - |
| 1978-11-21 20:00 | -14.0°S, 91.0°E | Category 1 Tropical Cyclone | 20.6 | - |
| 1978-11-22 02:00 | -14.2°S, 89.6°E | Moderate Tropical Storm | 20.6 | - |
| 1978-11-22 08:00 | -14.8°S, 88.5°E | Tropical Depression | 18 | - |
| 1978-11-22 14:00 | -16.1°S, 88.5°E | Tropical Depression | 18 | - |
| 1978-11-22 20:00 | -17.4°S, 88.8°E | Tropical Depression | 18 | - |
| 1978-11-23 02:00 | -18.7°S, 88.9°E | Tropical Depression | 18 | - |
| 1978-11-23 08:00 | -20.0°S, 89.0°E | Tropical Depression | 18 | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1978324S10097 / SH011979. This system has no official Chinese name and is displayed under its original English name. Intensity categories follow the classification used by the local agency in the region, converted from 1-minute sustained winds using the WMO factor, and are provided for reference only. Data notes · Incorrect translation?
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