


Offshore Forecast
Issued by NWS
Issued by NWS
816 FZPN24 KWNM 182202 OFFN09 NAVTEX Marine Forecast for Washington and Oregon waters NWS Ocean Prediction Center Washington DC 302 PM PDT Sat Oct 18 2025 Conditions given represent the highest within that period. ...Please refer to Coastal Waters Forecasts (CWF) available through NOAA Weather Radio and other means for detailed coastal waters forecasts... .SYNOPSIS...A cold front moving E over the waters tonight will push inland Sun. The associated low pressure system will track E tonight, remaining N of the waters while weakening. However, significant swell generated by this system will move E into the waters tonight into Sun. The swell will then gradually diminish Sun night. A high pressure ridge will build NE across the waters Sun night through Mon. Another weaker cold front will move E and then SE across the waters Mon night before dissipating on Tue. High pressure ridging will follow the front on Tue, before quickly moving inland ahead of the next cold front. This stronger front will pass over the waters Tue night into Wed. Yet another strong cold front is expected approach the area late Wed night, then move E and SE over the waters Thu into Thu night while weakening. Canadian border to 45N ...GALE WARNING... .TONIGHT...W winds 25 to 35 kt. Seas 13 to 22 ft. Scattered showers and slight chance of tstms. .SUN...W to NW winds 25 to 35 kt. Seas 16 to 25 ft. Isolated showers. .SUN NIGHT...NW winds 15 to 25 kt. Seas 12 to 20 ft. Chance of showers. .MON...SW winds 15 to 25 kt. Seas 8 to 14 ft. Chance of showers. .MON NIGHT...W to SW winds 10 to 20 kt. Seas 11 to 18 ft. .TUE...Variable winds 5 to 15 kt. Seas 12 to 20 ft. .TUE NIGHT...S winds 25 to 35 kt. Seas 10 to 16 ft. .WED...W to SW winds 20 to 30 kt. Seas 10 to 15 ft. .WED NIGHT...S winds 20 to 30 kt. Seas 10 to 16 ft. .THU...S winds 35 to 45 kt. Seas 13 to 20 ft. .THU NIGHT...S winds 35 to 45 kt. Seas 14 to 21 ft. 45N to Point Saint George ...GALE FORCE WINDS POSSIBLE THU... .TONIGHT...W winds 20 to 30 kt. Seas 9 to 16 ft. Scattered showers. .SUN...NW winds 20 to 30 kt. Seas 16 to 22 ft. Chance of rain. .SUN NIGHT...N to NW winds 10 to 20 kt. Seas 12 to 20 ft. .MON...N winds 20 to 30 kt. Seas 10 to 15 ft. .MON NIGHT...N winds 20 to 30 kt. Seas 11 to 16 ft. .TUE...N winds 15 to 25 kt. Seas 11 to 17 ft. .TUE NIGHT...SW winds 15 to 25 kt. Seas 10 to 16 ft. .WED...W to SW winds 15 to 25 kt. Seas 8 to 13 ft. .WED NIGHT...S winds 15 to 25 kt. Seas 9 to 14 ft. .THU...S winds 30 to 40 kt. Seas 11 to 17 ft. .THU NIGHT...S winds 30 to 40 kt. Seas 13 to 18 ft.