FZPN23 KWNM 091023 OFFN08 NAVTEX Marine Forecast for northern California waters NWS Ocean Prediction Center Washington DC 323 AM PDT Thu Jul 9 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 coastal trough will persist along the California coast today into Sat night. A cold front will reach the far northern waters Sat and reach the central waters Sat night while dissipating. A coastal trough will redevelop Sun and remain in place through Mon night as high pressure pushes into the waters. Point Saint George to Point Arena .TODAY...N to NW winds 20 to 30 kt. Seas 7 to 10 ft. .TONIGHT...N to NW winds 20 to 30 kt. Seas 7 to 10 ft. .FRI...N to NW winds 20 to 30 kt. Seas 6 to 10 ft. .FRI NIGHT...N winds 15 to 25 kt. Seas 5 to 8 ft. .SAT...N to NW winds 15 to 25 kt. Seas 5 to 8 ft. .SAT NIGHT...N winds 15 to 25 kt. Seas 5 to 9 ft. .SUN...N winds 20 to 30 kt. Seas 6 to 9 ft. .SUN NIGHT...N winds 15 to 25 kt. Seas 6 to 9 ft. .MON...N to NW winds 15 to 25 kt. Seas 5 to 9 ft. .MON NIGHT...N winds 15 to 25 kt. Seas 5 to 9 ft. Point Arena to Point Piedras Blancas .TODAY...NW winds 20 to 30 kt. Seas 6 to 11 ft. .TONIGHT...N to NW winds 20 to 30 kt. Seas 7 to 11 ft. .FRI...NW winds 20 to 30 kt. Seas 7 to 11 ft. .FRI NIGHT...N to NW winds 20 to 30 kt. Seas 5 to 9 ft. .SAT...N to NW winds 15 to 25 kt. Seas 5 to 9 ft. .SAT NIGHT...N winds 15 to 25 kt. Seas 6 to 10 ft. .SUN...N winds 15 to 25 kt. Seas 5 to 9 ft. .SUN NIGHT...N winds 20 to 30 kt. Seas 6 to 10 ft. .MON...N winds 15 to 25 kt. Seas 5 to 9 ft. .MON NIGHT...N winds 15 to 25 kt. Seas 5 to 9 ft.