FZPN23 KWNM 131550 OFFN08 NAVTEX Marine Forecast for northern California waters NWS Ocean Prediction Center Washington DC 850 AM PDT Tue Oct 13 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 surface trough will persist along or near the California Coast today through Sat night. Point Saint George to Point Arena .TODAY...N winds 10 to 20 kt. Seas 6 to 9 ft. .TONIGHT...N to NW winds 15 to 25 kt. Seas 5 to 9 ft. .WED...N winds 10 to 20 kt. Seas 5 to 9 ft. .WED NIGHT...N winds 10 to 20 kt. Seas 5 to 9 ft. .THU...N winds 5 to 15 kt. Seas 5 to 8 ft. .THU NIGHT...N winds 10 to 20 kt. Seas 4 to 7 ft. .FRI...N winds 10 to 20 kt. Seas 5 to 7 ft. .FRI NIGHT...N winds 15 to 25 kt. Seas 5 to 8 ft. .SAT...N winds 15 to 25 kt. Seas 5 to 9 ft. .SAT NIGHT...N winds 15 to 25 kt. Seas 6 to 10 ft. Point Arena to Point Piedras Blancas .TODAY...N winds 10 to 20 kt. Seas 5 to 9 ft. .TONIGHT...N winds 10 to 20 kt. Seas 4 to 8 ft. .WED...N winds 10 to 20 kt. Seas 4 to 7 ft. .WED NIGHT...N winds 5 to 15 kt. Seas 4 to 7 ft. .THU...N winds 5 to 15 kt. Seas 4 to 7 ft. .THU NIGHT...N winds 10 to 20 kt. Seas 3 to 6 ft. .FRI...N winds 10 to 20 kt. Seas 3 to 6 ft. .FRI NIGHT...N winds 15 to 25 kt. Seas 4 to 7 ft. .SAT...N winds 15 to 25 kt. Seas 5 to 9 ft. .SAT NIGHT...N winds 15 to 25 kt. Seas 6 to 10 ft.