2026 tropical cyclone season · western North Pacific
Typhoon Unnamed WP23 WP23 · WP232026
Typhoon Unnamed WP23 was tracked in the western North Pacific from 2026-09-04 to 2026-09-05 (1 days), peaking at 39 kt (TS) with a minimum pressure of 996 hPa. 10 archived forecasts from ECMWF, ECMWF ENS are verified against its best track.
- ATCF ID
- WP232026
- Basin
- western North Pacific
- Tracked
- 2026-09-04 → 2026-09-05 (1 days)
- Peak wind
- 39 kt · 20 m/s · TS
- Minimum pressure
- 996 hPa
- Archived forecasts
- 10
- Sources
- ECMWF · ECMWF ENS
Forecast track error (km)
| Source | 24 h | 48 h | 72 h | 120 h |
|---|---|---|---|---|
| ECMWF | 155 (1) | — | — | — |
| ECMWF ENS | 174 (1) | — | — | — |
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 |
|---|---|---|---|---|
| 2026-09-04 12Z | 22.4°N 137.8°E | 39 | 996 | TS |
| 2026-09-04 18Z | 24.0°N 137.1°E | 29 | 996 | TD |
| 2026-09-05 00Z | 26.3°N 136.3°E | 25 | 999 | TD |
| 2026-09-05 06Z | 27.6°N 135.2°E | 25 | 998 | TD |
| 2026-09-05 12Z | 28.5°N 133.8°E | 25 | 998 | TD |