2026 tropical cyclone season · western North Pacific

Typhoon Unnamed WP15 WP15 · WP152026

Typhoon Unnamed WP15 was tracked in the western North Pacific from 2026-08-10 to 2026-08-11 (2 days), peaking at 35 kt (TS) with a minimum pressure of 993 hPa. 12 archived forecasts from ECMWF, ECMWF ENS are verified against its best track.

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ATCF ID
WP152026
Basin
western North Pacific
Tracked
2026-08-10 → 2026-08-11 (2 days)
Peak wind
35 kt · 18 m/s · TS
Minimum pressure
993 hPa
Archived forecasts
12
Sources
ECMWF · ECMWF ENS
TDTSH1H2H3H4H5

Forecast track error (km)

Source24 h48 h72 h120 h
ECMWF94 (1)———
ECMWF ENS103 (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)PositionWind (kt)Pressure (hPa)Grade
2026-08-10 00Z25.6°N 160.1°E29997TD
2026-08-10 06Z27.1°N 160.7°E35993TS
2026-08-10 12Z27.5°N 160.6°E29996TD
2026-08-10 18Z27.5°N 160.2°E25997TD
2026-08-11 00Z28.4°N 160.8°E25997TD
2026-08-11 06Z29.2°N 162.2°E251000TD
2026-08-11 12Z31.0°N 161.0°E251000TD
2026-08-11 18Z30.5°N 158.5°E19999TD