1971South Pacific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 1971-11-05 08:00:00 (BeijingTime) 在South Pacific首次被记录, peak intensity 为Category 2 Tropical Cyclone , max wind 约 30.4 m/s (1 分钟平均) , minimum central pressure 980 hPa, at 1971-11-12 08:00:00前后结束, total 记录 29 track points (6 h一个) . 曾Landfall或贴近land.
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1971-11-05 08:00 | -21.4°S, 166.8°E | Category 1 Tropical Cyclone | 22.1 | 990 |
| 1971-11-05 20:00 | -23.1°S, 167.7°E | Category 1 Tropical Cyclone | 22.1 | 990 |
| 1971-11-06 08:00 | -25.2°S, 169.9°E | Category 1 Tropical Cyclone | 22.1 | 990 |
| 1971-11-06 20:00 | -26.2°S, 170.0°E | Category 1 Tropical Cyclone | 22.1 | 990 |
| 1971-11-07 08:00 | -26.4°S, 173.1°E | Category 1 Tropical Cyclone | 22.1 | 990 |
| 1971-11-07 20:00 | -25.8°S, 176.7°E | Category 1 Tropical Cyclone | 22.1 | 990 |
| 1971-11-08 08:00 | -26.8°S, 179.8°E | Category 1 Tropical Cyclone | 22.1 | 990 |
| 1971-11-08 20:00 | -28.4°S, 177.7°W | Category 1 Tropical Cyclone | 22.1 | 990 |
| 1971-11-09 08:00 | -29.3°S, 175.0°W | Category 2 Tropical Cyclone | 30.4 | 980 |
| 1971-11-09 20:00 | -29.8°S, 172.7°W | Category 2 Tropical Cyclone | 30.4 | 980 |
| 1971-11-10 08:00 | -31.0°S, 171.0°W | Category 2 Tropical Cyclone | 30.4 | 980 |
| 1971-11-10 20:00 | -32.5°S, 169.0°W | Category 1 Tropical Cyclone | 22.1 | 990 |
| 1971-11-11 08:00 | -34.0°S, 167.5°W | Category 1 Tropical Cyclone | 22.1 | 990 |
| 1971-11-11 20:00 | -35.5°S, 166.0°W | Tropical Depression | 16.5 | 997 |
| 1971-11-12 08:00 | -37.0°S, 166.0°W | Tropical Depression | 16.5 | 997 |
Data source: NOAA National Environmental Information Center IBTrACS v04r01 (Knapp et al., 2010), code 1971309S21167 / SH031972. This basin has no official Chinese name, so the original English designation 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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