2026 tropical cyclone season · western North Pacific
Typhoon Choi-Wan Choi-Wan · WP262026
Typhoon Choi-Wan was tracked in the western North Pacific from 2026-09-30 to 2026-10-07 (7 days), peaking at 134 kt (H4) with a minimum pressure of 912 hPa. 64 archived forecasts from ECMWF, ECMWF ENS are verified against its best track; at 48 hours the closest was ECMWF, 96 km off on average.
- ATCF ID
- WP262026
- Basin
- western North Pacific
- Tracked
- 2026-09-30 → 2026-10-07 (7 days)
- Peak wind
- 134 kt · 69 m/s · H4
- Minimum pressure
- 912 hPa
- Archived forecasts
- 64
- Sources
- ECMWF · ECMWF ENS
Forecast track error (km)
| Source | 24 h | 48 h | 72 h | 120 h |
|---|---|---|---|---|
| ECMWF | 46 (26) | 96 (22) | 158 (18) | 382 (10) |
| ECMWF ENS | 53 (26) | 101 (22) | 149 (18) | 380 (10) |
Mean great-circle distance to the best track at each lead time, counted while the system was a tropical or subtropical cyclone; the number of cases is in brackets.
Best track
Six-hourly positions of the US best track (JTWC / NHC, one-minute winds); grades on the Saffir–Simpson scale.
| Time (UTC) | Position | Wind (kt) | Pressure (hPa) | Grade |
|---|---|---|---|---|
| 2026-09-30 00Z | 15.6°N 151.9°E | 25 | 1005 | TD |
| 2026-09-30 06Z | 15.8°N 150.9°E | 29 | 1001 | TD |
| 2026-09-30 12Z | 16.0°N 151.0°E | 35 | 1002 | TS |
| 2026-09-30 18Z | 16.2°N 150.0°E | 35 | 1000 | TS |
| 2026-10-01 00Z | 16.7°N 147.9°E | 39 | 997 | TS |
| 2026-10-01 06Z | 16.9°N 146.8°E | 39 | 997 | TS |
| 2026-10-01 12Z | 16.5°N 145.8°E | 51 | 993 | TS |
| 2026-10-01 18Z | 16.9°N 145.1°E | 51 | 994 | TS |
| 2026-10-02 00Z | 17.0°N 144.7°E | 54 | 992 | TS |
| 2026-10-02 06Z | 16.9°N 144.6°E | 60 | 987 | TS |
| 2026-10-02 12Z | 17.7°N 144.6°E | 70 | 981 | H1 |
| 2026-10-02 18Z | 18.1°N 144.7°E | 74 | 978 | H1 |
| 2026-10-03 00Z | 18.6°N 145.3°E | 84 | 969 | H2 |
| 2026-10-03 06Z | 19.4°N 145.9°E | 80 | 969 | H1 |
| 2026-10-03 12Z | 20.3°N 146.2°E | 89 | 961 | H2 |
| 2026-10-03 18Z | 20.8°N 146.7°E | 93 | 955 | H2 |
| 2026-10-04 00Z | 22.1°N 147.1°E | 109 | 942 | H3 |
| 2026-10-04 06Z | 22.9°N 147.0°E | 124 | 924 | H4 |
| 2026-10-04 12Z | 23.3°N 146.9°E | 134 | 914 | H4 |
| 2026-10-04 18Z | 24.4°N 147.1°E | 134 | 912 | H4 |
| 2026-10-05 00Z | 25.2°N 146.5°E | 128 | 916 | H4 |
| 2026-10-05 06Z | 26.3°N 146.3°E | 115 | 928 | H4 |
| 2026-10-05 12Z | 27.3°N 145.9°E | 109 | 935 | H3 |
| 2026-10-05 18Z | 28.4°N 145.5°E | 105 | 937 | H3 |
| 2026-10-06 00Z | 29.8°N 145.8°E | 93 | 945 | H2 |
| 2026-10-06 06Z | 31.6°N 146.4°E | 84 | 953 | H2 |
| 2026-10-06 12Z | 33.7°N 147.6°E | 80 | 960 | H1 |
| 2026-10-06 18Z | 36.3°N 149.5°E | 74 | 959 | H1 |
| 2026-10-07 00Z | 39.3°N 152.6°E | 72 | 962 | H1 |
| 2026-10-07 06Z | 42.5°N 156.7°E | 70 | 964 | H1 |