Tropical Cyclone Elma
● 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).
Elma at 1991-02-26 08:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Severe Tropical Storm, max wind 约 30.9 m/s (1 分钟平均) , minimum central pressure 965 hPa, at 1991-03-05 20:00:00前后结束, total 记录 31 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1991-02-26 08:00 | -10.3°S, 87.2°E | Tropical Disturbance | 10.3 | 1000 |
| 1991-02-26 20:00 | -11.3°S, 88.2°E | Tropical Disturbance | 15.4 | 1000 |
| 1991-02-27 08:00 | -12.9°S, 88.7°E | Moderate Tropical Storm | 20.6 | 990 |
| 1991-02-27 20:00 | -14.6°S, 88.6°E | Moderate Tropical Storm | 23.1 | 985 |
| 1991-02-28 08:00 | -16.1°S, 88.2°E | Severe Tropical Storm | 30.9 | 980 |
| 1991-02-28 20:00 | -17.5°S, 88.4°E | Severe Tropical Storm | 30.9 | 970 |
| 1991-03-01 08:00 | -18.8°S, 89.0°E | Severe Tropical Storm | 28.3 | 965 |
| 1991-03-01 20:00 | -20.1°S, 89.4°E | Moderate Tropical Storm | 25.7 | 970 |
| 1991-03-02 08:00 | -21.2°S, 90.2°E | Category 1 Tropical Cyclone | 23.1 | 975 |
| 1991-03-02 20:00 | -22.4°S, 90.9°E | Category 1 Tropical Cyclone | 23.1 | 985 |
| 1991-03-03 08:00 | -23.6°S, 92.1°E | Category 1 Tropical Cyclone | 20.6 | 990 |
| 1991-03-03 20:00 | -25.1°S, 94.1°E | Tropical Depression | 18 | 1000 |
| 1991-03-04 08:00 | -26.8°S, 94.0°E | Tropical Depression | 18 | 1005 |
| 1991-03-04 20:00 | -26.9°S, 91.9°E | Tropical Depression | 11.3 | 1005 |
| 1991-03-05 08:00 | -25.9°S, 89.3°E | Tropical Disturbance | 11.3 | 1005 |
| 1991-03-05 20:00 | -25.8°S, 85.7°E | Tropical Disturbance | - | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1991057S10087 / SH141991. There is no official Chinese name for this storm, so the original English name is used. Intensity is classified by the local agency in the relevant sea area (converted from 1-minute sustained wind using the WMO factor) and is for reference only. Data notes · Incorrect translation?
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