Typhoon TracksHome › Western North Pacific 1987
Ian (1987, Western North Pacific)
Lowest pressure955 hPa
This is an archive, not a forecast or warning. For current storms follow your national meteorological service.
Peak wind75 kt (39 m/s)10-min
Duration14.0 days1987-09-22 – 1987-10-06
Strength rank in 198712 / 23by lowest pressure
All-time rank663 / 19431951–2025
Peak wind over time (kt)
Central pressure over time (hPa)
Compared with other 1987 storms (lowest pressure)
920 hPa
930 hPa
950 hPa
950 hPa
955 hPa
955 hPa
955 hPa
960 hPa
960 hPa
970 hPa
980 hPa
Bar length = depth below 1013 hPa (longer = stronger).
6-hourly track (UTC)
| Time | Lat | Lon | Wind kt | hPa |
|---|---|---|---|---|
| 1987-09-22 12:00 | 16.2 | 148.2 | – | – |
| 1987-09-22 18:00 | 16.2 | 147.7 | – | – |
| 1987-09-23 00:00 | 16.1 | 147.0 | – | 1,008 |
| 1987-09-23 06:00 | 16.1 | 146.6 | – | 1,006 |
| 1987-09-23 12:00 | 16.3 | 146.3 | – | 1,004 |
| 1987-09-23 18:00 | 16.3 | 146.0 | 35 | 1,002 |
| 1987-09-24 00:00 | 16.5 | 145.7 | 35 | 1,000 |
| 1987-09-24 06:00 | 16.9 | 145.3 | 40 | 996 |
| 1987-09-24 12:00 | 17.4 | 144.6 | 40 | 992 |
| 1987-09-24 18:00 | 17.8 | 144.0 | 40 | 985 |
| 1987-09-25 00:00 | 18.2 | 143.4 | 55 | 975 |
| 1987-09-25 06:00 | 18.8 | 142.7 | 65 | 970 |
| 1987-09-25 12:00 | 19.3 | 142.1 | 70 | 965 |
| 1987-09-25 18:00 | 19.9 | 141.5 | 75 | 960 |
| 1987-09-26 00:00 | 20.6 | 140.9 | 75 | 955 |
| 1987-09-26 06:00 | 21.4 | 140.3 | 75 | 955 |
| 1987-09-26 12:00 | 22.0 | 139.7 | 75 | 955 |
| 1987-09-26 18:00 | 22.6 | 139.1 | 75 | 955 |
| 1987-09-27 00:00 | 23.1 | 138.6 | 75 | 955 |
| 1987-09-27 06:00 | 23.2 | 138.2 | 75 | 955 |
| 1987-09-27 12:00 | 23.3 | 138.0 | 75 | 955 |
| 1987-09-27 18:00 | 23.4 | 138.0 | 75 | 960 |
| 1987-09-28 00:00 | 23.5 | 138.0 | 75 | 960 |
| 1987-09-28 06:00 | 23.5 | 138.0 | 70 | 960 |
| 1987-09-28 12:00 | 23.6 | 138.1 | 70 | 960 |
| 1987-09-28 18:00 | 23.6 | 138.1 | 70 | 960 |
| 1987-09-29 00:00 | 23.7 | 138.0 | 70 | 965 |
| 1987-09-29 06:00 | 23.8 | 137.7 | 70 | 965 |
| 1987-09-29 12:00 | 24.0 | 137.4 | 70 | 965 |
| 1987-09-29 18:00 | 24.0 | 137.1 | 65 | 970 |
| 1987-09-30 00:00 | 24.2 | 137.0 | 60 | 975 |
| 1987-09-30 06:00 | 24.3 | 136.9 | 60 | 975 |
| 1987-09-30 12:00 | 24.8 | 136.9 | 55 | 980 |
| 1987-09-30 18:00 | 25.4 | 137.3 | 55 | 980 |
| 1987-10-01 00:00 | 26.0 | 138.0 | 55 | 980 |
| 1987-10-01 06:00 | 26.8 | 138.5 | 55 | 985 |
| 1987-10-01 12:00 | 27.2 | 139.3 | 55 | 985 |
| 1987-10-01 18:00 | 27.8 | 140.3 | 55 | 990 |
| 1987-10-02 00:00 | 28.8 | 141.4 | 45 | 992 |
| 1987-10-02 06:00 | 29.6 | 142.6 | 45 | 992 |
| 1987-10-02 12:00 | 30.3 | 144.4 | 45 | 992 |
| 1987-10-02 18:00 | 31.2 | 146.3 | 40 | 992 |
| 1987-10-03 00:00 | 32.1 | 148.3 | 45 | 992 |
| 1987-10-03 06:00 | 33.0 | 150.6 | 45 | 992 |
| 1987-10-03 12:00 | 33.9 | 153.3 | 40 | 992 |
| 1987-10-03 18:00 | 35.4 | 156.0 | 40 | 992 |
| 1987-10-04 00:00 | 37.4 | 158.3 | 40 | 994 |
| 1987-10-04 06:00 | 38.5 | 160.5 | 40 | 994 |
| 1987-10-04 12:00 | 40.5 | 164.0 | – | 996 |
| 1987-10-04 18:00 | 43.0 | 167.0 | – | 994 |
| 1987-10-05 00:00 | 46.0 | 170.0 | – | 990 |
| 1987-10-05 06:00 | 49.0 | 172.0 | – | 986 |
| 1987-10-05 12:00 | 52.0 | 173.0 | – | 984 |
| 1987-10-05 18:00 | 54.0 | 175.0 | – | 980 |
| 1987-10-06 00:00 | 54.0 | 176.0 | – | 976 |
| 1987-10-06 06:00 | 53.5 | 177.0 | – | 976 |
| 1987-10-06 12:00 | 53.0 | 178.5 | – | 978 |
Winds are RSMC Tokyo (JMA) 10-minute sustained winds and central pressure (winds recorded from 1977).