FZPN23 KWNM 041623 OFFN08 NAVTEX Marine Forecast for northern California waters NWS Ocean Prediction Center Washington DC 923 AM PDT Mon May 4 2026 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 trough across the northern waters will slowly drift SE today into tonight before dissipating along the northern California coast Tue. High pressure will build W of the waters Tue night through Thu, then extend into the region Thu night as the California coastal trough redevelops. The trough will continue along the California coast through Fri night. A cold front will move into the far NW portion Thu night, then weaken as it moves into the central waters Fri into Fri night. Point Saint George to Point Arena .TODAY...W to NW winds 5 to 15 kt. Seas 5 to 8 ft. .TONIGHT...NW winds 5 to 15 kt. Seas 5 to 8 ft. .TUE...NW winds 5 to 15 kt. Seas 5 to 7 ft. .TUE NIGHT...NW winds 5 to 15 kt. Seas 5 to 8 ft. .WED...N winds 5 to 15 kt. Seas 5 to 8 ft. .WED NIGHT...N winds 5 to 15 kt. Seas 5 to 8 ft. .THU...W to NW winds 5 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...W to NW winds 5 to 15 kt. Seas 4 to 6 ft. .FRI...W to NW winds 10 to 20 kt. Seas 4 to 7 ft. .FRI NIGHT...N winds 15 to 25 kt. Seas 5 to 8 ft. Point Arena to Point Piedras Blancas .TODAY...Variable winds less than 10 kt. Seas 5 to 8 ft. .TONIGHT...NW winds 5 to 15 kt. Seas 4 to 7 ft. .TUE...NW winds 5 to 15 kt. Seas 4 to 7 ft. .TUE NIGHT...NW winds 5 to 15 kt. Seas 4 to 7 ft. .WED...NW winds 5 to 15 kt. Seas 4 to 7 ft. .WED NIGHT...NW winds 10 to 20 kt. Seas 4 to 7 ft. .THU...NW winds 10 to 20 kt. Seas 4 to 7 ft. .THU NIGHT...NW winds 15 to 25 kt. Seas 4 to 8 ft. .FRI...NW winds 15 to 25 kt. Seas 5 to 9 ft. .FRI NIGHT...N to NW winds 15 to 25 kt. Seas 6 to 10 ft.