Tropical Cyclone Gritelle
● 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).
Gritelle at 1991-06-05 08:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Moderate Tropical Storm, max wind 约 20.6 m/s (1 分钟平均) , minimum central pressure 984 hPa, at 1991-06-16 20:00:00前后结束, total 记录 47 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1991-06-05 08:00 | -7.1°S, 84.2°E | Tropical Cyclone | - | - |
| 1991-06-05 20:00 | -8.1°S, 83.3°E | Tropical Cyclone | - | - |
| 1991-06-06 08:00 | -9.0°S, 82.3°E | Tropical Cyclone | - | - |
| 1991-06-06 20:00 | -9.3°S, 80.6°E | Tropical Disturbance | 7.7 | - |
| 1991-06-07 08:00 | -9.1°S, 77.9°E | Tropical Disturbance | 7.7 | 1000 |
| 1991-06-07 20:00 | -9.4°S, 76.0°E | Tropical Disturbance | 10.3 | 997 |
| 1991-06-08 08:00 | -10.0°S, 74.4°E | Tropical Disturbance | 12.9 | 997 |
| 1991-06-08 20:00 | -10.0°S, 72.4°E | Tropical Disturbance | 15.4 | 997 |
| 1991-06-09 08:00 | -10.1°S, 71.4°E | Tropical Disturbance | 15.4 | 1000 |
| 1991-06-09 20:00 | -10.2°S, 70.4°E | Tropical Depression | 18 | 997 |
| 1991-06-10 08:00 | -10.8°S, 69.3°E | Moderate Tropical Storm | 20.6 | 991 |
| 1991-06-10 20:00 | -11.1°S, 68.5°E | Tropical Depression | 18 | 984 |
| 1991-06-11 08:00 | -11.3°S, 67.5°E | Tropical Depression | 18 | 984 |
| 1991-06-11 20:00 | -11.5°S, 66.9°E | Tropical Depression | 18 | 993 |
| 1991-06-12 08:00 | -11.7°S, 66.7°E | Tropical Disturbance | 15.4 | 991 |
| 1991-06-12 20:00 | -11.8°S, 66.7°E | Tropical Disturbance | 12.9 | 995 |
| 1991-06-13 08:00 | -11.9°S, 67.3°E | Tropical Disturbance | 12.9 | 997 |
| 1991-06-13 20:00 | -11.8°S, 67.7°E | Tropical Disturbance | 12.9 | 997 |
| 1991-06-14 08:00 | -12.1°S, 67.9°E | Tropical Disturbance | 13.4 | 1000 |
| 1991-06-14 20:00 | -13.0°S, 67.4°E | Tropical Disturbance | 13.4 | 1000 |
| 1991-06-15 08:00 | -14.6°S, 67.5°E | Tropical Disturbance | 13.4 | 1000 |
| 1991-06-15 20:00 | -18.5°S, 67.3°E | Tropical Disturbance | 12.3 | 1002 |
| 1991-06-16 08:00 | -23.5°S, 69.4°E | Tropical Disturbance | 11.3 | 1004 |
| 1991-06-16 20:00 | -30.0°S, 76.5°E | Tropical Disturbance | - | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1991156S07084 / SH221991. 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 and are converted from 1-min sustained wind using the WMO factor. For reference only. Data notes · Incorrect translation?
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