FZPN23 KWNM 090939 OFFN08 NAVTEX Marine Forecast for northern California waters NWS Ocean Prediction Center Washington DC 239 AM PDT Thu Apr 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...Low pressure just W of the waters this morning will continue to move slowly E today through Fri across the N and central portions of the area, then inland Fri night. This system will drag a cold front S across the remainder of the waters Fri, with the front dissipating Fri night as the aforementioned low moves inland. Another low center will enter the NW waters on Sat with a cold front pressing east across the central waters Sat and Sat night. This second low moves inland on Sun as the weakening cold front sweeps south across all waters by Sun night. High pressure builds back in from the west Mon and Mon night. Point Saint George to Point Arena .TODAY...NE winds 10 to 20 kt. Seas 5 to 7 ft. .TONIGHT...N winds 5 to 15 kt. Seas 5 to 7 ft. .FRI...N to NW winds 5 to 15 kt. Seas 5 to 7 ft. .FRI NIGHT...W to SW winds 5 to 15 kt. Seas 4 to 7 ft. .SAT...S to SW winds 15 to 25 kt. Seas 5 to 8 ft. .SAT NIGHT...N winds 15 to 25 kt. Seas 7 to 10 ft. .SUN...N to NW winds 15 to 25 kt. Seas 7 to 11 ft. .SUN NIGHT...N winds 15 to 25 kt. Seas 6 to 10 ft. .MON...N winds 10 to 20 kt. Seas 6 to 9 ft. .MON NIGHT...N winds 15 to 25 kt. Seas 5 to 9 ft. Point Arena to Point Piedras Blancas .TODAY...S to SW winds less than 10 kt. Seas 4 to 6 ft. .TONIGHT...N winds 5 to 15 kt. Seas 4 to 7 ft. .FRI...NW winds 10 to 20 kt. Seas 4 to 7 ft. .FRI NIGHT...W winds 5 to 15 kt. Seas 4 to 7 ft. .SAT...S to SW winds 20 to 30 kt. Seas 6 to 10 ft. .SAT NIGHT...W winds 20 to 30 kt. Seas 8 to 12 ft. .SUN...W to NW winds 20 to 30 kt. Seas 7 to 12 ft. .SUN NIGHT...N to NW winds 10 to 20 kt. Seas 6 to 10 ft. .MON...N to NW winds 15 to 25 kt. Seas 5 to 9 ft. .MON NIGHT...N to NW winds 15 to 25 kt. Seas 5 to 9 ft.