Typhoon TracksHome › Western North Pacific 2003
Koppu (2003, Western North Pacific)
Lowest pressure960 hPa
This is an archive, not a forecast or warning. For current storms follow your national meteorological service.
Peak wind70 kt (36 m/s)10-min
Duration9.5 days2003-09-23 – 2003-10-03
Strength rank in 200312 / 21by lowest pressure
All-time rank775 / 19431951–2025
Peak wind over time (kt)
Central pressure over time (hPa)
Compared with other 2003 storms (lowest pressure)
940 hPa
945 hPa
950 hPa
955 hPa
955 hPa
960 hPa
970 hPa
970 hPa
975 hPa
980 hPa
980 hPa
Bar length = depth below 1013 hPa (longer = stronger).
6-hourly track (UTC)
| Time | Lat | Lon | Wind kt | hPa |
|---|---|---|---|---|
| 2003-09-23 18:00 | 14.5 | 139.6 | – | – |
| 2003-09-24 00:00 | 15.4 | 139.5 | – | 1,006 |
| 2003-09-24 06:00 | 16.0 | 138.5 | – | 1,004 |
| 2003-09-24 12:00 | 16.2 | 137.4 | – | 1,002 |
| 2003-09-24 18:00 | 16.4 | 136.6 | – | 1,002 |
| 2003-09-25 00:00 | 16.3 | 135.9 | – | 1,000 |
| 2003-09-25 06:00 | 16.1 | 135.9 | – | 998 |
| 2003-09-25 12:00 | 16.4 | 136.2 | – | 998 |
| 2003-09-25 18:00 | 16.8 | 136.3 | – | 996 |
| 2003-09-26 00:00 | 17.2 | 136.5 | – | 996 |
| 2003-09-26 06:00 | 18.2 | 136.8 | – | 998 |
| 2003-09-26 12:00 | 19.1 | 137.5 | – | 998 |
| 2003-09-26 18:00 | 20.2 | 138.3 | 35 | 992 |
| 2003-09-27 00:00 | 21.4 | 139.1 | 40 | 985 |
| 2003-09-27 06:00 | 22.4 | 139.3 | 50 | 980 |
| 2003-09-27 12:00 | 23.2 | 139.6 | 50 | 980 |
| 2003-09-27 18:00 | 24.1 | 140.0 | 55 | 975 |
| 2003-09-28 00:00 | 24.8 | 140.5 | 55 | 975 |
| 2003-09-28 06:00 | 25.5 | 140.6 | 60 | 975 |
| 2003-09-28 12:00 | 26.2 | 140.7 | 60 | 970 |
| 2003-09-28 18:00 | 26.8 | 140.8 | 60 | 970 |
| 2003-09-29 00:00 | 27.4 | 141.3 | 65 | 965 |
| 2003-09-29 06:00 | 28.4 | 141.8 | 70 | 960 |
| 2003-09-29 12:00 | 29.4 | 142.7 | 65 | 965 |
| 2003-09-29 18:00 | 30.6 | 144.3 | 65 | 965 |
| 2003-09-30 00:00 | 32.8 | 147.0 | 60 | 970 |
| 2003-09-30 06:00 | 35.5 | 150.3 | – | 976 |
| 2003-09-30 12:00 | 40.7 | 153.1 | – | 972 |
| 2003-09-30 18:00 | 43.2 | 154.4 | – | 968 |
| 2003-10-01 00:00 | 44.5 | 156.4 | – | 972 |
| 2003-10-01 06:00 | 46.3 | 158.3 | – | 976 |
| 2003-10-01 12:00 | 47.1 | 160.9 | – | 976 |
| 2003-10-01 18:00 | 47.6 | 163.8 | – | 976 |
| 2003-10-02 00:00 | 48.3 | 166.6 | – | 976 |
| 2003-10-02 06:00 | 48.5 | 169.1 | – | 976 |
| 2003-10-02 12:00 | 49.1 | 171.4 | – | 978 |
| 2003-10-02 18:00 | 48.5 | 173.5 | – | 980 |
| 2003-10-03 00:00 | 48.5 | 176.4 | – | 980 |
| 2003-10-03 06:00 | 48.2 | 179.6 | – | 980 |
Winds are RSMC Tokyo (JMA) 10-minute sustained winds and central pressure (winds recorded from 1977).