FZPN23 KWNM 091050 OFFN08 NAVTEX Marine Forecast for northern California waters NWS Ocean Prediction Center Washington DC ISSUED BY NWS Honolulu HI 250 AM PST Tue Dec 9 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...A low pressure trough will persist along the central and S California coast today through tonight, then redevelop along the N and central coast Wed through Sat night. High pressure just to the W of the central waters will persist tonight through Wed night, then drift N to the W of the N and central waters later Wed night through Fri night. The high will slowly weaken Sat and Sat night as a cold front move into the N portions. Point Saint George to Point Arena .TODAY...SW winds 10 to 20 kt. Seas 7 to 10 ft. .TONIGHT...N to NW winds 10 to 20 kt. Seas 7 to 10 ft. .WED...W to NW winds 10 to 20 kt. Seas 6 to 10 ft. .WED NIGHT...N winds 10 to 20 kt. Seas 7 to 10 ft. .THU...N winds 10 to 20 kt. Seas 8 to 11 ft. .THU NIGHT...N winds 10 to 20 kt. Seas 8 to 11 ft. .FRI...N winds 10 to 20 kt. Seas 6 to 10 ft. .FRI NIGHT...N winds 5 to 15 kt. Seas 5 to 8 ft. .SAT...Variable winds 5 to 15 kt. Seas 4 to 6 ft. .SAT NIGHT...W to SW winds less than 10 kt. Seas 4 to 7 ft. Point Arena to Point Piedras Blancas .TODAY...N winds 10 to 20 kt. Seas 5 to 8 ft. .TONIGHT...N winds 10 to 20 kt. Seas 6 to 9 ft. .WED...N winds 10 to 20 kt. Seas 6 to 9 ft. .WED NIGHT...N winds 10 to 20 kt. Seas 6 to 10 ft. .THU...N winds 15 to 25 kt. Seas 7 to 11 ft. .THU NIGHT...N winds 10 to 20 kt. Seas 7 to 11 ft. .FRI...N winds 5 to 15 kt. Seas 6 to 10 ft. .FRI NIGHT...N winds 5 to 15 kt. Seas 4 to 8 ft. .SAT...N winds less than 10 kt. Seas 3 to 6 ft. .SAT NIGHT...N winds less than 10 kt. Seas 3 to 4 ft.