pacific_northwest hurricane pacific northwest hurricane unusual pacific tropical cyclone attained hurricane status farther north pacific hurricane officially unnamed cargo ship providing vital meteorological data assessing storm twelfth tropical cyclone pacific hurricane season developed cold core upper level low merging remnants tropical cyclone august northeast hawaii convection increased circulation better defined early september tropical storm turning northeast area warm water temperatures storm quickly strengthened developing eye attained hurricane status late september located miles south alaska maintaining peak winds hours storm rapidly weakened interacted approaching cold early september lost identity near coast alaska meteorological history august tropical cyclone hurricane degenerated remnant low pressure area miles west southern tip baja california peninsula remnants drifted northwestward cloud field eastern north pacific_ocean time mid trough slowly intensified gradually undergoing cyclogenesis develop cold core upper level low early august low level circulation formed upper level low miles northeast hawaii time circulation remnants located miles cold core low rapidly intensified convection increased late august absorbed remnants influenced development system convection steadily organized tracked westward estimated transitioned subtropical depression utc september warm water temperatures system strengthened began develop tropical characteristics subsequent development banding features convection contracted deepened increasingly defined center estimated tropical storm early september located miles north hawaiian island storm quickly developed central dense overcast utc september dvorak classifications began cyclone water temperatures strengthened rapidly approaching cold caused accelerate northeast eye apparent satellite imagery storm intensified hurricane utc september located miles south alaska hurricane cyclone small measuring miles diameter operationally hurricane classified lack ship confirmation time hurricane strongest winds reported ship mph miles southeast center additionally developing closed eyewall cyclone beginning interact frontal system west late september ship reported pressure mbar hour tendency increase suggesting minimum pressure mbar time storm maintained number resulting estimated winds mph estimated pressure mbar maintaining hurricane status hours storm continued rapidly northeastward weakened strong wind shear approaching cold early september estimated cyclone extratropical located miles southwest alaska circulation rapidly absorbed remnants quickly reached coast british_columbia remnants storm turned southeastward tracked definitively point north montana impact records utc september ship named recorded mph winds near center storm utc september chartered cargo ship recorded winds mph miles strongest reported winds association tropical cyclone ship reported foot swells significant land impact occurred association cyclone fatalities reported forming storm formed farther north pacific tropical cyclone time tropical storm formed farther north cyclone marked known occurrence mid pacific upper low developing tropical cyclone tropical storm redeveloped similar occurrence hurricane cyclone attained hurricane status record pacific hurricane tropical storm dot hurricane john tropical depression tropical storm tropical cyclones north latitude john hurricane maintained tropical cyclone status north cyclone
1975 Pacific Northwest hurricane