Tropical Cyclone Graham
● 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).
Graham at 1991-12-01 08:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Category 5 Tropical Cyclone , max wind 约 61.7 m/s (1 分钟平均) , minimum central pressure 915 hPa, at 1991-12-12 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 |
|---|
| 1991-12-01 08:00 | -4.4°S, 95.0°E | Tropical Depression | 10.3 | - |
| 1991-12-01 20:00 | -4.9°S, 94.1°E | Tropical Depression | 12.9 | - |
| 1991-12-02 08:00 | -5.3°S, 93.8°E | Tropical Depression | 12.9 | 1000 |
| 1991-12-02 20:00 | -5.7°S, 93.9°E | Tropical Depression | 15.4 | 1000 |
| 1991-12-03 08:00 | -6.4°S, 93.5°E | Category 1 Tropical Cyclone | 20.6 | 995 |
| 1991-12-03 20:00 | -7.2°S, 93.1°E | Category 1 Tropical Cyclone | 25.7 | 985 |
| 1991-12-04 08:00 | -7.9°S, 93.1°E | Category 2 Tropical Cyclone | 33.4 | 965 |
| 1991-12-04 20:00 | -8.5°S, 93.5°E | Category 3 tropical cyclone | 38.6 | 945 |
| 1991-12-05 08:00 | -9.2°S, 94.7°E | Category 4 tropical cyclone | 48.9 | 930 |
| 1991-12-05 20:00 | -10.0°S, 96.1°E | Category 4 tropical cyclone | 56.6 | 915 |
| 1991-12-06 08:00 | -11.1°S, 97.7°E | Category 5 Tropical Cyclone | 61.7 | 930 |
| 1991-12-06 20:00 | -11.9°S, 99.1°E | Category 4 tropical cyclone | 54 | 950 |
| 1991-12-07 08:00 | -12.4°S, 100.4°E | Category 3 tropical cyclone | 43.7 | 975 |
| 1991-12-07 20:00 | -12.4°S, 101.7°E | Category 2 Tropical Cyclone | 33.4 | 985 |
| 1991-12-08 08:00 | -12.5°S, 102.9°E | Category 1 Tropical Cyclone | 23.1 | 995 |
| 1991-12-08 20:00 | -13.2°S, 103.7°E | Tropical Depression | 18 | 995 |
| 1991-12-09 08:00 | -13.9°S, 103.9°E | Tropical Depression | 18 | 995 |
| 1991-12-09 20:00 | -14.4°S, 104.4°E | Tropical Depression | 15.4 | 995 |
| 1991-12-10 08:00 | -14.8°S, 104.8°E | Tropical Depression | 15.4 | 1000 |
| 1991-12-10 20:00 | -15.2°S, 104.6°E | Tropical Depression | 12.9 | 1005 |
| 1991-12-11 08:00 | -15.2°S, 103.8°E | Tropical Depression | 10.3 | - |
| 1991-12-11 20:00 | -14.9°S, 102.5°E | Tropical Depression | 10.3 | - |
| 1991-12-12 08:00 | -14.5°S, 101.1°E | Tropical Depression | 10.3 | - |
| 1991-12-12 20:00 | -14.2°S, 99.7°E | Tropical Depression | 10.3 | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1991335S04095 / SH051992. There is no official Chinese name for this area, so the original English name is used. Intensity is classified by the local agency in the region and converted from 1-minute sustained wind using WMO factors, for reference only. Data notes · Incorrect translation?
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