Tropical Cyclone Helios
● 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.
Helios at 1979-03-23 14:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Tropical Disturbance, max wind 约 15.4 m/s (1 分钟平均) , minimum central pressure 997 hPa, at 1979-03-31 14:00:00前后结束, total 记录 33 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1979-03-23 14:00 | -10.1°S, 54.0°E | Tropical Cyclone | - | - |
| 1979-03-24 02:00 | -10.9°S, 54.0°E | Tropical Cyclone | - | - |
| 1979-03-24 14:00 | -12.0°S, 54.0°E | Tropical Cyclone | - | - |
| 1979-03-25 02:00 | -12.5°S, 54.2°E | Tropical Cyclone | - | - |
| 1979-03-25 14:00 | -13.0°S, 54.4°E | Tropical Cyclone | - | - |
| 1979-03-26 02:00 | -14.0°S, 55.1°E | Tropical Cyclone | - | - |
| 1979-03-26 14:00 | -14.8°S, 56.2°E | Tropical Cyclone | - | - |
| 1979-03-27 02:00 | -15.3°S, 57.2°E | Tropical Disturbance | 15.4 | 997 |
| 1979-03-27 14:00 | -16.4°S, 57.9°E | Tropical Cyclone | - | - |
| 1979-03-28 02:00 | -17.9°S, 59.3°E | Tropical Cyclone | - | - |
| 1979-03-28 14:00 | -19.3°S, 60.5°E | Tropical Cyclone | - | - |
| 1979-03-29 02:00 | -20.3°S, 61.5°E | Tropical Cyclone | - | - |
| 1979-03-29 14:00 | -22.0°S, 61.9°E | Tropical Cyclone | - | - |
| 1979-03-30 02:00 | -22.5°S, 62.0°E | Tropical Cyclone | - | - |
| 1979-03-30 14:00 | -23.0°S, 62.0°E | Tropical Cyclone | - | - |
| 1979-03-31 02:00 | -24.0°S, 62.0°E | Tropical Cyclone | - | - |
| 1979-03-31 14:00 | -25.0°S, 62.0°E | Tropical Cyclone | - | - |
Data sources: NOAA National Environmental Information Center IBTrACS v04r01 (Knapp et al., 2010); code 1979082S10054 / SH211979. No official Chinese name is available for this basin, so the original English name is used. Intensity is classified by the relevant local agency in the basin, converted from 1-minute sustained winds using the WMO factor, for reference only. Data notes · Incorrect translation?
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