Tropical Cyclone Ofa
● 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.
Ofa at 1979-12-09 20:00:00 (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 1979-12-15 08:00:00前后结束, total 记录 23 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1979-12-09 20:00 | -12.0°S, 170.0°E | Tropical Depression | 16.5 | 997 |
| 1979-12-10 02:00 | -12.2°S, 171.5°E | Tropical Cyclone | - | - |
| 1979-12-10 08:00 | -12.5°S, 173.5°E | Tropical Depression | 16.5 | 997 |
| 1979-12-10 14:00 | -12.7°S, 175.3°E | Tropical Cyclone | - | - |
| 1979-12-10 20:00 | -13.0°S, 177.0°E | Tropical Depression | 16.5 | 997 |
| 1979-12-11 02:00 | -13.5°S, 179.0°E | Tropical Cyclone | - | - |
| 1979-12-11 08:00 | -14.3°S, 179.0°W | Category 1 Tropical Cyclone | 19.5 | 995 |
| 1979-12-11 14:00 | -15.2°S, 176.6°W | Tropical Cyclone | - | - |
| 1979-12-11 20:00 | -16.2°S, 174.3°W | Category 1 Tropical Cyclone | 24.7 | 987 |
| 1979-12-12 02:00 | -17.7°S, 172.0°W | Tropical Cyclone | - | - |
| 1979-12-12 08:00 | -19.3°S, 169.7°W | Category 2 Tropical Cyclone | 30.4 | 980 |
| 1979-12-12 14:00 | -20.3°S, 167.7°W | Tropical Cyclone | - | - |
| 1979-12-12 20:00 | -21.0°S, 165.6°W | Category 1 Tropical Cyclone | 24.7 | 987 |
| 1979-12-13 02:00 | -21.6°S, 163.0°W | Tropical Cyclone | - | - |
| 1979-12-13 08:00 | -22.0°S, 160.5°W | Category 1 Tropical Cyclone | 22.1 | 990 |
| 1979-12-13 14:00 | -22.3°S, 159.2°W | Tropical Cyclone | - | - |
| 1979-12-13 20:00 | -22.4°S, 158.0°W | Tropical Depression | 16.5 | 997 |
| 1979-12-14 02:00 | -22.3°S, 157.4°W | Tropical Cyclone | - | - |
| 1979-12-14 08:00 | -22.0°S, 157.0°W | Tropical Depression | 16.5 | 997 |
| 1979-12-14 14:00 | -21.7°S, 156.8°W | Tropical Cyclone | - | - |
| 1979-12-14 20:00 | -21.5°S, 156.5°W | Tropical Depression | 16.5 | 997 |
| 1979-12-15 02:00 | -21.2°S, 155.7°W | Tropical Cyclone | - | - |
| 1979-12-15 08:00 | -21.0°S, 155.5°W | Tropical Depression | 16.5 | 997 |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1979344S12170. There is no official Chinese name for this system, so the original English name is used. Intensity categories follow the classifications of the local agency in the region, converted from 1-min sustained wind using WMO factors, and are for reference only. Data notes · Incorrect translation?