1997South Indian Ocean未命名Tropical Cyclone
● 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).
未命名 at 1997-07-18 08:00:00 (BeijingTime) 在South Indian Ocean首次被记录, peak intensity 为Moderate Tropical Storm, max wind 约 23.1 m/s (1 分钟平均) , minimum central pressure 995 hPa, at 1997-07-25 14:00:00前后结束, total 记录 30 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1997-07-18 08:00 | -3.8°S, 78.7°E | Tropical Disturbance | 7.7 | - |
| 1997-07-18 20:00 | -3.9°S, 78.4°E | Tropical Disturbance | 10.3 | - |
| 1997-07-19 08:00 | -4.1°S, 78.0°E | Tropical Disturbance | 15.4 | - |
| 1997-07-19 20:00 | -4.5°S, 77.6°E | Tropical Disturbance | 12.9 | - |
| 1997-07-20 08:00 | -5.4°S, 76.9°E | Tropical Disturbance | 12.9 | 1002 |
| 1997-07-20 20:00 | -6.3°S, 76.6°E | Tropical Disturbance | 15.4 | 1000 |
| 1997-07-21 08:00 | -6.8°S, 76.4°E | Moderate Tropical Storm | 20.6 | 998 |
| 1997-07-21 20:00 | -7.5°S, 76.1°E | Moderate Tropical Storm | 23.1 | 995 |
| 1997-07-22 08:00 | -8.1°S, 75.9°E | Moderate Tropical Storm | 23.1 | 995 |
| 1997-07-22 20:00 | -8.7°S, 75.6°E | Moderate Tropical Storm | 23.1 | 997 |
| 1997-07-23 08:00 | -9.2°S, 75.1°E | Moderate Tropical Storm | 20.6 | 1000 |
| 1997-07-23 20:00 | -9.3°S, 74.1°E | Moderate Tropical Storm | 20.6 | 1000 |
| 1997-07-24 08:00 | -8.9°S, 72.8°E | Tropical Depression | 18 | 1004 |
| 1997-07-24 20:00 | -9.0°S, 71.4°E | Tropical Disturbance | 12.9 | 1004 |
| 1997-07-25 08:00 | -8.1°S, 69.6°E | Tropical Disturbance | - | - |
| 1997-07-25 14:00 | -7.8°S, 68.4°E | Tropical Disturbance | - | - |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1997199S04079 / SH011998. There is no official Chinese name for this system, so the original English designation is used. Intensity grades follow the classification of the local agency in the region, converted from 1-min sustained wind using WMO factors, and are for reference only. Data notes · Incorrect translation?