Tropical Cyclone Trudy
● 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.
Trudy at 1978-01-10 08:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Category 4 tropical cyclone , max wind 约 48.9 m/s (1 分钟平均) , minimum central pressure 955 hPa, at 1978-01-20 08:00:00前后结束, total 记录 41 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1978-01-10 08:00 | -10.6°S, 129.0°E | Tropical Depression | 12.9 | 1004 |
| 1978-01-10 20:00 | -10.8°S, 125.1°E | Tropical Depression | 12.9 | 1003 |
| 1978-01-11 08:00 | -11.3°S, 121.8°E | Tropical Depression | 12.9 | 1003 |
| 1978-01-11 20:00 | -12.6°S, 117.1°E | Tropical Depression | 18 | 996 |
| 1978-01-12 08:00 | -13.9°S, 112.6°E | Category 1 Tropical Cyclone | 20.6 | 994 |
| 1978-01-12 20:00 | -13.6°S, 108.3°E | Category 1 Tropical Cyclone | 25.7 | 985 |
| 1978-01-13 08:00 | -13.0°S, 105.1°E | Category 2 Tropical Cyclone | 30.9 | 981 |
| 1978-01-13 20:00 | -13.3°S, 102.8°E | Category 3 tropical cyclone | 38.6 | 969 |
| 1978-01-14 08:00 | -14.6°S, 101.0°E | Category 3 tropical cyclone | 43.7 | 964 |
| 1978-01-14 20:00 | -16.1°S, 99.2°E | Category 3 tropical cyclone | 43.7 | 968 |
| 1978-01-15 08:00 | -17.1°S, 96.8°E | Category 3 tropical cyclone | 38.6 | 973 |
| 1978-01-15 20:00 | -17.4°S, 94.4°E | Category 3 tropical cyclone | 46.3 | 960 |
| 1978-01-16 08:00 | -17.6°S, 92.2°E | Category 4 tropical cyclone | 48.9 | 955 |
| 1978-01-16 20:00 | -18.0°S, 90.4°E | Category 3 tropical cyclone | 46.3 | 957 |
| 1978-01-17 08:00 | -18.6°S, 88.8°E | Tropical Cyclone | 43.7 | 964 |
| 1978-01-17 20:00 | -20.1°S, 88.0°E | Tropical Cyclone | 38.6 | 972 |
| 1978-01-18 08:00 | -21.7°S, 88.1°E | Severe Tropical Storm | 30.9 | 981 |
| 1978-01-18 20:00 | -22.8°S, 88.3°E | Moderate Tropical Storm | 23.1 | 989 |
| 1978-01-19 08:00 | -23.8°S, 88.6°E | Tropical Depression | 18 | 999 |
| 1978-01-19 20:00 | -24.6°S, 88.9°E | Tropical Disturbance | 15.4 | 1002 |
| 1978-01-20 08:00 | -25.2°S, 89.2°E | Tropical Disturbance | 12.9 | 1006 |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1978010S11129 / SH121978. No official Chinese name is available for this basin, so the original English name is used. Intensity categories follow the local agency classification for the basin, converted from 1-minute sustained winds using the WMO factor, and are provided for reference only. Data notes · Incorrect translation?
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