Tropical Cyclone Steve
● 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.
Steve at 1977-11-24 08:00:00 (BeijingTime) 在South Pacific首次被记录, peak intensity 为Category 2 Tropical Cyclone , max wind 约 33.4 m/s (1 分钟平均) , minimum central pressure 965 hPa, at 1977-12-04 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 |
|---|
| 1977-11-24 08:00 | -6.0°S, 176.7°E | Tropical Depression | 12.9 | 997 |
| 1977-11-24 20:00 | -6.9°S, 176.0°E | Tropical Depression | 12.9 | 990 |
| 1977-11-25 08:00 | -7.7°S, 175.8°E | Tropical Depression | 15.4 | 990 |
| 1977-11-25 20:00 | -8.8°S, 176.1°E | Tropical Depression | 18 | 990 |
| 1977-11-26 08:00 | -10.3°S, 175.9°E | Category 1 Tropical Cyclone | 20.6 | 990 |
| 1977-11-26 20:00 | -11.4°S, 175.6°E | Category 1 Tropical Cyclone | 25.7 | 990 |
| 1977-11-27 08:00 | -13.0°S, 175.0°E | Category 2 Tropical Cyclone | 33.4 | 970 |
| 1977-11-27 20:00 | -13.9°S, 174.8°E | Category 2 Tropical Cyclone | 33.4 | 965 |
| 1977-11-28 08:00 | -15.0°S, 174.5°E | Category 1 Tropical Cyclone | 23.1 | 980 |
| 1977-11-28 20:00 | -17.0°S, 174.7°E | Category 1 Tropical Cyclone | 20.6 | 990 |
| 1977-11-29 08:00 | -19.0°S, 175.0°E | Tropical Depression | 18 | 997 |
| 1977-11-29 20:00 | -20.7°S, 175.2°E | Tropical Depression | 18 | 997 |
| 1977-11-30 08:00 | -23.0°S, 175.5°E | Tropical Depression | 15.4 | 997 |
| 1977-11-30 20:00 | -24.7°S, 175.3°E | Tropical Depression | 15.4 | 997 |
| 1977-12-01 08:00 | -26.0°S, 175.0°E | Tropical Depression | 12.9 | 997 |
| 1977-12-01 20:00 | -27.4°S, 174.8°E | Tropical Depression | 12.9 | 997 |
| 1977-12-02 08:00 | -29.0°S, 174.7°E | Tropical Depression | 12.9 | 997 |
| 1977-12-02 20:00 | -31.1°S, 175.9°E | Tropical Depression | 12.9 | 997 |
| 1977-12-03 08:00 | -31.5°S, 176.0°E | Tropical Depression | 16.5 | 997 |
| 1977-12-03 20:00 | -32.2°S, 178.0°E | Tropical Depression | 16.5 | 997 |
| 1977-12-04 08:00 | -33.0°S, 180.0°E | Tropical Depression | 16.5 | 997 |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1977328S06177 / SH031978. This area has no official Chinese translated name; the original English name is used. Categories follow the local agency classification for the region, converted from 1-minute sustained winds using the WMO factor, and are for reference only. Data notes · Incorrect translation?
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