Tropical Cyclone Bella
● 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).
Bella at 1991-01-13 08:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Super Tropical Cyclone , max wind 约 66.9 m/s (1 分钟平均) , minimum central pressure 936 hPa, at 1991-02-05 02:00:00前后结束, total 记录 92 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1991-01-13 08:00 | -4.4°S, 95.5°E | Tropical Depression | 10.3 | - |
| 1991-01-14 08:00 | -5.4°S, 95.4°E | Tropical Depression | 12.9 | - |
| 1991-01-15 08:00 | -6.2°S, 94.2°E | Tropical Depression | 10.3 | - |
| 1991-01-16 08:00 | -6.8°S, 91.6°E | Tropical Depression | 7.7 | - |
| 1991-01-17 08:00 | -7.8°S, 89.6°E | Tropical Disturbance | 7.7 | - |
| 1991-01-18 08:00 | -8.8°S, 87.3°E | Tropical Disturbance | 10.3 | - |
| 1991-01-19 08:00 | -9.7°S, 84.6°E | Tropical Disturbance | 12.9 | - |
| 1991-01-20 08:00 | -10.0°S, 81.9°E | Tropical Disturbance | 15.4 | - |
| 1991-01-21 08:00 | -12.7°S, 82.5°E | Tropical Disturbance | 15.4 | - |
| 1991-01-22 08:00 | -14.5°S, 82.0°E | Tropical Disturbance | 15.4 | - |
| 1991-01-23 08:00 | -14.2°S, 79.8°E | Tropical Depression | 18 | - |
| 1991-01-24 08:00 | -14.3°S, 76.1°E | Moderate Tropical Storm | 20.6 | 997 |
| 1991-01-25 08:00 | -14.7°S, 71.2°E | Moderate Tropical Storm | 23.1 | 994 |
| 1991-01-26 08:00 | -15.5°S, 67.2°E | Moderate Tropical Storm | 20.6 | 991 |
| 1991-01-27 08:00 | -16.8°S, 66.3°E | Moderate Tropical Storm | 23.1 | 984 |
| 1991-01-28 08:00 | -17.3°S, 65.2°E | Severe Tropical Storm | 33.4 | 976 |
| 1991-01-29 08:00 | -17.3°S, 63.2°E | Tropical Cyclone | 48.9 | 954 |
| 1991-01-30 08:00 | -18.0°S, 61.6°E | Super Tropical Cyclone | 66.9 | 936 |
| 1991-01-31 08:00 | -19.5°S, 62.9°E | Severe Tropical Cyclone | 56.6 | 948 |
| 1991-02-01 08:00 | -22.4°S, 63.7°E | Severe Tropical Storm | 33.4 | 976 |
| 1991-02-02 08:00 | -25.1°S, 62.1°E | Moderate Tropical Storm | 25.7 | 976 |
| 1991-02-03 08:00 | -29.5°S, 60.8°E | Moderate Tropical Storm | 23.1 | 984 |
| 1991-02-04 08:00 | -33.9°S, 62.5°E | Tropical Depression | 18 | 991 |
| 1991-02-05 02:00 | -36.1°S, 66.7°E | Tropical Disturbance | 12.9 | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1991013S04096 / SH081991. There is no official Chinese name for this system, so the original English name is used. Intensity is classified by the local agency for the region (converted from 1-min sustained wind using the WMO factor) and is for reference only. Data notes · Incorrect translation?
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