FZPN23 KWNM 210937 OFFN08 NAVTEX Marine Forecast for northern California waters NWS Ocean Prediction Center Washington DC 237 AM PDT Sun Jun 21 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 will persist along the California coast today through Thu night. High pressure will remain well W of the area through Thu night. A cold front will approach from the NW Thu into Thu night. Point Saint George to Point Arena .TODAY...N winds 20 to 30 kt. Seas 7 to 11 ft. .TONIGHT...N winds 20 to 30 kt. Seas 7 to 11 ft. .MON...N winds 15 to 25 kt. Seas 7 to 10 ft. .MON NIGHT...N winds 15 to 25 kt. Seas 7 to 10 ft. .TUE...N winds 15 to 25 kt. Seas 6 to 9 ft. .TUE NIGHT...N winds 15 to 25 kt. Seas 7 to 11 ft. .WED...N winds 15 to 25 kt. Seas 7 to 10 ft. .WED NIGHT...N winds 15 to 25 kt. Seas 7 to 10 ft. .THU...N to NW winds 20 to 30 kt. Seas 7 to 10 ft. .THU NIGHT...W to NW winds 15 to 25 kt. Seas 6 to 10 ft. Point Arena to Point Piedras Blancas .TODAY...N winds 15 to 25 kt. Seas 6 to 10 ft. .TONIGHT...N to NW winds 15 to 25 kt. Seas 6 to 10 ft. .MON...N to NW winds 15 to 25 kt. Seas 6 to 9 ft. .MON NIGHT...N to NW winds 10 to 20 kt. Seas 5 to 9 ft. .TUE...N winds 10 to 20 kt. Seas 5 to 8 ft. .TUE NIGHT...N winds 10 to 20 kt. Seas 4 to 8 ft. .WED...N winds 10 to 20 kt. Seas 5 to 8 ft. .WED NIGHT...N winds 15 to 25 kt. Seas 6 to 10 ft. .THU...N to NW winds 15 to 25 kt. Seas 6 to 9 ft. .THU NIGHT...NW winds 15 to 25 kt. Seas 5 to 9 ft.