Tropical Cyclone Claudette/Viola
● 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.
Claudette/Viola at 1979-12-09 08:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Severe Tropical Cyclone , max wind 约 56.6 m/s (1 分钟平均) , minimum central pressure 930 hPa, at 1979-12-28 14:00:00前后结束, total 记录 78 track points (6 h一个) . 曾Landfall或贴近land.
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1979-12-09 08:00 | -8.0°S, 93.0°E | Tropical Depression | 11.3 | 1006 |
| 1979-12-10 08:00 | -8.7°S, 92.1°E | Tropical Depression | 12.9 | 1004 |
| 1979-12-11 08:00 | -9.9°S, 91.7°E | Tropical Depression | 15.4 | 998 |
| 1979-12-12 08:00 | -10.8°S, 90.0°E | Tropical Depression | 15.4 | 988 |
| 1979-12-13 08:00 | -10.3°S, 88.5°E | Moderate Tropical Storm | 20.6 | 982 |
| 1979-12-14 08:00 | -9.8°S, 87.2°E | Moderate Tropical Storm | 25.7 | 975 |
| 1979-12-15 08:00 | -9.0°S, 85.8°E | Severe Tropical Storm | 30.9 | 965 |
| 1979-12-16 08:00 | -9.7°S, 84.7°E | Tropical Cyclone | 43.7 | 955 |
| 1979-12-17 08:00 | -10.8°S, 83.9°E | Tropical Cyclone | 46.3 | 931 |
| 1979-12-18 08:00 | -11.9°S, 80.5°E | Severe Tropical Cyclone | 56.6 | 936 |
| 1979-12-19 08:00 | -12.7°S, 75.9°E | Severe Tropical Cyclone | 56.6 | - |
| 1979-12-20 08:00 | -13.3°S, 71.1°E | Severe Tropical Cyclone | 51.4 | - |
| 1979-12-21 08:00 | -14.3°S, 65.0°E | Severe Tropical Cyclone | 51.4 | - |
| 1979-12-22 08:00 | -17.0°S, 60.3°E | Tropical Cyclone | 43.7 | - |
| 1979-12-23 08:00 | -20.5°S, 57.5°E | Tropical Cyclone | 36 | - |
| 1979-12-24 08:00 | -25.3°S, 57.9°E | Tropical Cyclone | 36 | - |
| 1979-12-25 08:00 | -30.1°S, 61.0°E | Severe Tropical Storm | 28.3 | - |
| 1979-12-26 08:00 | -30.5°S, 65.0°E | Moderate Tropical Storm | 20.6 | - |
| 1979-12-27 08:00 | -30.5°S, 72.0°E | Tropical Disturbance | 15.4 | - |
| 1979-12-28 08:00 | -35.0°S, 76.3°E | Tropical Disturbance | 15.4 | - |
| 1979-12-28 14:00 | -36.2°S, 77.1°E | Tropical Disturbance | 15.4 | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1979343S08093 / SH021980. This basin has no official Chinese translation, so the original English name is displayed. Intensity is classified by the local agency of the basin (converted from 1-minute sustained wind using WMO coefficients), for reference only. Data notes · Incorrect translation?
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