FZPN23 KWNM 231108 OFFN08 NAVTEX Marine Forecast for northern California waters NWS Ocean Prediction Center Washington DC 408 AM PDT Wed Sep 23 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 near the California coast through Sun night, while high pressure centered to the W and NW of the waters extends a ridge across most of the area. A cold front will weaken while moving E across the far N portions today. Low pressure will approach the northern portions Wed night, then move E across the N waters and inland early Fri. A cold front associated with the low will move SE across the northern portions Thu, the central waters Thu night and Fri, then finally into the southern waters Fri night while dissipating. Another cold front will approach the area from the NW Sat, weaken Sat night near the outer waters, then dissipate Sun. Point Saint George to Point Arena .TODAY...N to NW winds 20 to 30 kt. Seas 7 to 11 ft. .TONIGHT...N to NW winds 15 to 25 kt. Seas 6 to 10 ft. .THU...W to SW winds 15 to 25 kt. Seas 6 to 10 ft. .THU NIGHT...NW winds 20 to 30 kt. Seas 10 to 15 ft. .FRI...N to NW winds 15 to 25 kt. Seas 7 to 12 ft. .FRI NIGHT...N winds 20 to 30 kt. Seas 6 to 10 ft. .SAT...N winds 20 to 30 kt. Seas 8 to 11 ft. .SAT NIGHT...N winds 15 to 25 kt. Seas 7 to 10 ft. .SUN...N winds 15 to 25 kt. Seas 6 to 10 ft. .SUN NIGHT...N winds 15 to 25 kt. Seas 5 to 9 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 5 to 9 ft. .THU...NW winds 10 to 20 kt. Seas 4 to 8 ft. .THU NIGHT...N to NW winds 15 to 25 kt. Seas 5 to 9 ft. .FRI...N to NW winds 20 to 30 kt. Seas 6 to 10 ft. .FRI NIGHT...N winds 20 to 30 kt. Seas 6 to 11 ft. .SAT...N to NW winds 15 to 25 kt. Seas 7 to 11 ft. .SAT NIGHT...N to NW winds 15 to 25 kt. Seas 7 to 11 ft. .SUN...N to NW winds 15 to 25 kt. Seas 6 to 10 ft. .SUN NIGHT...N to NW winds 15 to 25 kt. Seas 5 to 9 ft.