Tropical Cyclone Helisaonina
● Data reliability: ReliableWeather satellites monitored it throughout, so its track and intensity are relatively accurate (Atlantic and E. Pacific since 1966, other basins since 1980).
Helisaonina at 1985-04-07 14:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Severe Tropical Cyclone , max wind 约 56.6 m/s (1 分钟平均) , minimum central pressure 941 hPa, at 1985-04-19 14:00:00前后结束, total 记录 49 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1985-04-07 14:00 | -9.2°S, 76.1°E | Tropical Cyclone | - | - |
| 1985-04-08 08:00 | -9.7°S, 75.9°E | Tropical Cyclone | - | - |
| 1985-04-09 02:00 | -10.4°S, 75.7°E | Tropical Cyclone | - | - |
| 1985-04-09 20:00 | -11.0°S, 75.6°E | Tropical Cyclone | - | - |
| 1985-04-10 14:00 | -11.8°S, 74.6°E | Moderate Tropical Storm | 20.1 | - |
| 1985-04-11 08:00 | -12.0°S, 71.5°E | Tropical Depression | 18 | 984 |
| 1985-04-12 02:00 | -13.6°S, 69.6°E | Moderate Tropical Storm | 25.7 | 966 |
| 1985-04-12 20:00 | -15.2°S, 67.2°E | Tropical Cyclone | 38.6 | 954 |
| 1985-04-13 14:00 | -17.0°S, 64.6°E | Tropical Cyclone | 48.9 | 954 |
| 1985-04-14 08:00 | -18.0°S, 63.1°E | Severe Tropical Cyclone | 56.6 | 941 |
| 1985-04-15 02:00 | -18.9°S, 63.7°E | Tropical Cyclone | 48.9 | 984 |
| 1985-04-15 20:00 | -17.8°S, 63.6°E | Tropical Cyclone | 38.6 | 997 |
| 1985-04-16 14:00 | -16.9°S, 59.9°E | Moderate Tropical Storm | 23.1 | 1003 |
| 1985-04-17 08:00 | -15.8°S, 56.7°E | Tropical Disturbance | 15.4 | 1003 |
| 1985-04-18 02:00 | -15.0°S, 53.8°E | Tropical Disturbance | 15.4 | - |
| 1985-04-18 20:00 | -15.4°S, 51.2°E | Tropical Disturbance | 12.9 | - |
| 1985-04-19 14:00 | -17.2°S, 53.2°E | Tropical Cyclone | - | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1985097S09076 / SH331985. There is no official Chinese translated name for this storm, so the original English name is used. Categories follow the classifications of the relevant local agency 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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