Tropical Cyclone Dawn
● 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.
Dawn at 1970-02-10 14:00:00 (BeijingTime) 在South Pacific首次被记录, peak intensity 为Category 1 Tropical Cyclone , max wind 约 23.1 m/s (1 分钟平均) , minimum central pressure 980 hPa, at 1970-02-19 14:00:00前后结束, total 记录 37 track points (6 h一个) . 曾Landfall或贴近land.
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1970-02-10 14:00 | -13.8°S, 138.7°E | Tropical Depression | 10.3 | - |
| 1970-02-11 02:00 | -12.5°S, 140.8°E | Tropical Depression | 12.9 | - |
| 1970-02-11 14:00 | -11.6°S, 143.2°E | Category 1 Tropical Cyclone | 23.1 | - |
| 1970-02-12 02:00 | -11.6°S, 145.5°E | Tropical Depression | 18 | - |
| 1970-02-12 14:00 | -12.6°S, 147.4°E | Tropical Depression | 15.4 | - |
| 1970-02-13 02:00 | -13.5°S, 148.6°E | Tropical Depression | 12.9 | - |
| 1970-02-13 14:00 | -14.2°S, 150.0°E | Tropical Depression | 15.4 | - |
| 1970-02-14 02:00 | -14.0°S, 152.3°E | Tropical Depression | 15.4 | - |
| 1970-02-14 14:00 | -13.6°S, 154.5°E | Tropical Depression | 12.9 | - |
| 1970-02-15 02:00 | -13.5°S, 156.6°E | Tropical Depression | 18 | - |
| 1970-02-15 14:00 | -13.9°S, 158.6°E | Tropical Depression | 12.9 | - |
| 1970-02-16 02:00 | -14.7°S, 160.1°E | Tropical Depression | 7.7 | - |
| 1970-02-16 14:00 | -15.6°S, 161.2°E | Tropical Depression | 7.7 | - |
| 1970-02-17 02:00 | -17.0°S, 162.0°E | Tropical Depression | 5.1 | - |
| 1970-02-17 14:00 | -18.8°S, 162.0°E | Tropical Depression | 7.7 | - |
| 1970-02-18 02:00 | -20.5°S, 161.5°E | Tropical Depression | 10.3 | - |
| 1970-02-18 14:00 | -22.2°S, 160.5°E | Tropical Depression | 7.7 | - |
| 1970-02-19 02:00 | -23.8°S, 159.4°E | Tropical Depression | 10.3 | - |
| 1970-02-19 14:00 | -25.0°S, 158.2°E | Tropical Cyclone | - | - |
Data sources: NOAA National Environmental Information Center IBTrACS v04r01 (Knapp et al., 2010), code 1970041S14139 / SH161970. There is no official Chinese translated name for this basin, so the original English name is shown. Categories follow the classifications of local agencies in the basin, converted from 1-minute sustained winds using the WMO factor, and are for reference only. Data notes · Incorrect translation?
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