2025 tropical cyclone season · eastern North Pacific

Hurricane Cosme Cosme · EP032025

Hurricane Cosme was tracked in the eastern North Pacific from 2025-06-08 to 2025-06-11 (4 days), peaking at 60 kt (TS) with a minimum pressure of 991 hPa. 94 archived forecasts from NHC, ECMWF, ECMWF ENS, GFS, GEFS are verified against its best track; at 48 hours the closest was ECMWF ENS, 73 km off on average.

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ATCF ID
EP032025
Basin
eastern North Pacific
Tracked
2025-06-08 → 2025-06-11 (4 days)
Peak wind
60 kt · 31 m/s · TS
Minimum pressure
991 hPa
Archived forecasts
94
Sources
NHC · ECMWF · ECMWF ENS · GFS · GEFS
TDTSH1H2H3H4H5

Forecast track error (km)

Source24 h48 h72 h120 h
NHC49 (7)129 (3)——
ECMWF52 (7)120 (3)——
ECMWF ENS39 (8)73 (4)——
GFS133 (8)256 (4)——
GEFS136 (8)323 (4)——

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
2025-06-08 06Z11.7°N 110.0°W301005TD
2025-06-08 12Z12.3°N 110.4°W351002TS
2025-06-08 18Z13.0°N 110.8°W401000TS
2025-06-09 00Z13.5°N 111.6°W401000TS
2025-06-09 06Z14.0°N 112.4°W45999TS
2025-06-09 12Z14.4°N 113.0°W55994TS
2025-06-09 18Z14.7°N 113.6°W60991TS
2025-06-10 00Z15.0°N 114.1°W60991TS
2025-06-10 06Z15.1°N 114.5°W60991TS
2025-06-10 12Z15.3°N 114.9°W60993TS
2025-06-10 18Z15.6°N 115.2°W50999TS
2025-06-11 00Z15.9°N 115.0°W451001TS
2025-06-11 06Z16.0°N 114.5°W401004TS
2025-06-11 12Z16.2°N 113.8°W301006TD
2025-06-11 18Z16.5°N 112.9°W251008TD