Tropical Cyclone Hamish
● 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).
Hamish at 1999-04-17 08:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Category 1 Tropical Cyclone , max wind 约 23.1 m/s (1 分钟平均) , minimum central pressure 980 hPa, at 1999-04-25 20:00:00前后结束, total 记录 35 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1999-04-17 08:00 | -11.5°S, 89.5°E | Tropical Disturbance | 12.9 | - |
| 1999-04-17 20:00 | -10.3°S, 90.6°E | Tropical Depression | 12.9 | - |
| 1999-04-18 08:00 | -8.6°S, 91.0°E | Tropical Depression | 12.9 | - |
| 1999-04-18 20:00 | -8.0°S, 91.8°E | Tropical Depression | 12.9 | - |
| 1999-04-19 08:00 | -9.1°S, 92.4°E | Tropical Depression | 12.9 | - |
| 1999-04-19 20:00 | -9.4°S, 92.8°E | Tropical Depression | 18 | 1002 |
| 1999-04-20 08:00 | -11.3°S, 93.3°E | Tropical Depression | 18 | 1000 |
| 1999-04-20 20:00 | -13.3°S, 92.4°E | Category 1 Tropical Cyclone | 23.1 | 986 |
| 1999-04-21 08:00 | -14.3°S, 91.0°E | Category 1 Tropical Cyclone | 23.1 | 980 |
| 1999-04-21 20:00 | -15.4°S, 90.2°E | Category 1 Tropical Cyclone | 23.1 | 993 |
| 1999-04-22 08:00 | -16.2°S, 88.6°E | Moderate Tropical Storm | 23.1 | 995 |
| 1999-04-22 20:00 | -16.8°S, 87.3°E | Moderate Tropical Storm | 20.6 | 998 |
| 1999-04-23 08:00 | -16.6°S, 85.9°E | Moderate Tropical Storm | 20.6 | 1000 |
| 1999-04-23 20:00 | -16.2°S, 84.7°E | Tropical Depression | 18 | 1002 |
| 1999-04-24 08:00 | -16.3°S, 83.5°E | Tropical Disturbance | 12.9 | 1005 |
| 1999-04-24 20:00 | -17.3°S, 81.9°E | Tropical Disturbance | 12.9 | - |
| 1999-04-25 08:00 | -18.1°S, 79.7°E | Tropical Disturbance | 12.9 | - |
| 1999-04-25 20:00 | -19.3°S, 77.2°E | Tropical Disturbance | 12.9 | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1999107S12090 / SH331999. This basin has no official Chinese name, so the English name is used. Intensity is graded by the local agency in that basin (converted from 1-min sustained wind using the WMO factor), for reference only. Data notes · Incorrect translation?
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