The 1987 Unnamed North Indian Ocean 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 1987-01-30 14:00:00 (BeijingTime) 在North Indian Ocean首次被记录, peak intensity 为强The Cyclone Storm, max wind 约 28.3 m/s (1 分钟平均) , minimum central pressure 970 hPa, at 1987-02-04 20:00:00前后结束, total 记录 22 track points (6 h一个) .
| Time (BeijingTime) | Position | Category (local) | wind speed m/s | Pressure hPa |
|---|
| 1987-01-30 14:00 | 5.8°N, 89.6°E | Depressions | 10.3 | - |
| 1987-01-30 20:00 | 5.9°N, 89.2°E | Depressions | 10.3 | 998 |
| 1987-01-31 02:00 | 6.1°N, 88.6°E | Depressions | 10.3 | - |
| 1987-01-31 08:00 | 6.4°N, 87.7°E | Depressions | 10.3 | 996 |
| 1987-01-31 14:00 | 6.8°N, 86.8°E | Depressions | 12.9 | 992 |
| 1987-01-31 20:00 | 7.2°N, 86.1°E | Depressions | 12.9 | 988 |
| 1987-02-01 02:00 | 7.8°N, 85.6°E | Deep Depression | 15.4 | - |
| 1987-02-01 08:00 | 8.5°N, 85.3°E | Deep Depression | 15.4 | 986 |
| 1987-02-01 14:00 | 9.2°N, 85.4°E | Deep Depression | 18 | 978 |
| 1987-02-01 20:00 | 10.4°N, 85.9°E | The Cyclone Storm | 20.6 | 974 |
| 1987-02-02 02:00 | 11.5°N, 86.3°E | The Cyclone Storm | 23.1 | - |
| 1987-02-02 08:00 | 12.5°N, 86.9°E | 强The Cyclone Storm | 25.7 | 970 |
| 1987-02-02 14:00 | 13.5°N, 87.6°E | 强The Cyclone Storm | 28.3 | 970 |
| 1987-02-02 20:00 | 14.4°N, 88.0°E | 强The Cyclone Storm | 25.7 | 974 |
| 1987-02-03 02:00 | 15.2°N, 88.4°E | The Cyclone Storm | 23.1 | 980 |
| 1987-02-03 08:00 | 15.9°N, 88.8°E | The Cyclone Storm | 20.6 | 986 |
| 1987-02-03 14:00 | 16.7°N, 89.2°E | Deep Depression | 18 | - |
| 1987-02-03 20:00 | 17.5°N, 89.8°E | Deep Depression | 15.4 | 994 |
| 1987-02-04 02:00 | 18.3°N, 90.4°E | Depressions | 12.9 | - |
| 1987-02-04 08:00 | 19.4°N, 91.2°E | Depressions | 10.3 | 996 |
| 1987-02-04 14:00 | 20.3°N, 91.7°E | Depressions | 10.3 | 998 |
| 1987-02-04 20:00 | 21.0°N, 91.0°E | Depressions | 13.4 | 998 |
Data sources: NOAA National Centers for Environmental Information IBTrACS v04r01 (Knapp et al., 2010), code 1987030N06089 / IO011987. This system has no official Chinese name and is displayed under its original English name. Intensity grades follow the classifications of the local agency in the basin and are converted from 1-minute sustained winds using the WMO factor, for reference only. Data notes · Incorrect translation?
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