FZPN23 KWNM 212238 OFFN08 NAVTEX Marine Forecast for northern California waters NWS Ocean Prediction Center Washington DC 238 PM PST Fri Feb 21 2025 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...High pressure remains over the region today while a trough persists along the California coast. The trough will then begin to weaken tonight into Sat as a cold front moves over northern waters while weakening. High pressure will persist over the central and S California waters through Mon night while drifting E. Another cold front will approach the N and central waters Sun night and then begin to weaken Mon into Mon night. High pressure will shift N over the northern California waters Tue into Wed, with coastal trough expanding N. A cold front will approach the central and northern California waters Wed night. Point Saint George to Point Arena .TONIGHT...S winds 10 to 20 kt. Seas 9 to 14 ft. .SAT...S winds 15 to 25 kt. Seas 8 to 13 ft. Chance of rain. .SAT NIGHT...S to SW winds 20 to 30 kt. Seas 9 to 13 ft. Chance of rain. .SUN...S to SW winds 20 to 30 kt. Seas 9 to 13 ft. Chance of rain with vsby 1 nm or less. .SUN NIGHT...S winds 20 to 30 kt. Seas 8 to 13 ft. .MON...S to SW winds 20 to 30 kt. Seas 12 to 18 ft. .MON NIGHT...SW winds 15 to 25 kt. Seas 13 to 19 ft. .TUE...S winds 5 to 15 kt. Seas 11 to 16 ft. .TUE NIGHT...S to SE winds 5 to 15 kt. Seas 8 to 13 ft. .WED...S winds 10 to 20 kt. Seas 7 to 11 ft. .WED NIGHT...S winds 5 to 15 kt. Seas 7 to 11 ft. Point Arena to Point Piedras Blancas .TONIGHT...NW winds 5 to 15 kt. Seas 7 to 11 ft. .SAT...SW winds 10 to 20 kt. Seas 7 to 11 ft. .SAT NIGHT...SW winds 10 to 20 kt. Seas 7 to 11 ft. .SUN...SW winds 10 to 20 kt. Seas 7 to 11 ft. .SUN NIGHT...S winds 15 to 25 kt. Seas 7 to 11 ft. .MON...S to SW winds 15 to 25 kt. Seas 9 to 14 ft. .MON NIGHT...N to NW winds 5 to 15 kt. Seas 10 to 15 ft. .TUE...N winds 10 to 20 kt. Seas 9 to 15 ft. .TUE NIGHT...N winds 10 to 20 kt. Seas 8 to 13 ft. .WED...S winds 5 to 15 kt. Seas 6 to 11 ft. .WED NIGHT...N to NW winds 5 to 15 kt. Seas 6 to 10 ft.