FZPN23 KWNM 222231 OFFN08 NAVTEX Marine Forecast for northern California waters NWS Ocean Prediction Center Washington DC 331 PM PDT Wed Apr 22 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...Strengthening high pressure will build in across the N and central waters tonight, then maintain a ridge just W of the area Thu into Sat night. The ridge will weaken Sun into Mon night as an area of low pressure develops W of the southern waters. A low pressure trough will persist along the California coast today into Fri night. The trough will weaken Fri night as another trough develops across the N and central waters Fri night into Mon night. Point Saint George to Point Arena .TONIGHT...N winds 10 to 20 kt. Seas 5 to 8 ft. .THU...N winds 15 to 25 kt. Seas 6 to 9 ft. .THU NIGHT...N winds 20 to 30 kt. Seas 7 to 10 ft. .FRI...N winds 15 to 25 kt. Seas 7 to 10 ft. .FRI NIGHT...N winds 10 to 20 kt. Seas 6 to 9 ft. .SAT...N winds 10 to 20 kt. Seas 5 to 8 ft. .SAT NIGHT...N to NW winds 10 to 20 kt. Seas 5 to 8 ft. .SUN...N to NW winds 10 to 20 kt. Seas 5 to 8 ft. .SUN NIGHT...N winds 5 to 15 kt. Seas 5 to 8 ft. .MON...N winds 5 to 15 kt. Seas 5 to 7 ft. .MON NIGHT...N winds 5 to 15 kt. Seas 5 to 7 ft. Point Arena to Point Piedras Blancas .TONIGHT...N winds 10 to 20 kt. Seas 4 to 8 ft. .THU...N to NW winds 20 to 30 kt. Seas 5 to 9 ft. .THU NIGHT...N to NW winds 20 to 30 kt. Seas 6 to 10 ft. .FRI...N to NW winds 10 to 20 kt. Seas 5 to 9 ft. .FRI NIGHT...NW winds 10 to 20 kt. Seas 5 to 9 ft. .SAT...W to NW winds 5 to 15 kt. Seas 5 to 8 ft. .SAT NIGHT...NW winds 10 to 20 kt. Seas 5 to 8 ft. .SUN...NW winds 5 to 15 kt. Seas 4 to 7 ft. .SUN NIGHT...N to NW winds 5 to 15 kt. Seas 4 to 7 ft. .MON...N to NW winds 5 to 15 kt. Seas 4 to 7 ft. .MON NIGHT...N winds 5 to 15 kt. Seas 3 to 6 ft.