FZPN23 KWNM 191813 OFFN08 NAVTEX Marine Forecast for northern California waters NWS Ocean Prediction Center Washington DC 1113 AM PDT Mon Oct 19 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 along the California coast will weaken and dissipate today. A high pressure ridge axis will move SE across the region today, then weaken and move S of the area tonight. A cold front will move SE through the N and central waters through tonight ahead of an area of low pressure that will track S through the outer N and central waters tonight and Tue. The front will slow and weaken Tue, then drift E across the S waters Tue night through Wed night as the associated low pressure decays over the central and S waters. Another cold front will move S through the N waters late Thu and Thu night before dissipating over the central waters Fri. A coastal trough will redevelop Thu night and persist into Fri night as high pressure approaches from the NW. Point Saint George to Point Arena .TODAY...W to NW winds 10 to 20 kt. Seas 9 to 13 ft. Chance of rain. .TONIGHT...E to NE winds 10 to 20 kt. Seas 10 to 14 ft. .TUE...NE winds 15 to 25 kt. Seas 8 to 14 ft. .TUE NIGHT...N winds 10 to 20 kt. Seas 6 to 10 ft. .WED...N winds 10 to 20 kt. Seas 5 to 8 ft. .WED NIGHT...N winds 10 to 20 kt. Seas 5 to 7 ft. .THU...N winds 10 to 20 kt. Seas 5 to 8 ft. .THU NIGHT...N winds 20 to 30 kt. Seas 6 to 10 ft. .FRI...N winds 20 to 30 kt. Seas 8 to 12 ft. .FRI NIGHT...N winds 15 to 25 kt. Seas 7 to 11 ft. Point Arena to Point Piedras Blancas .TODAY...NW winds 5 to 15 kt. Seas 5 to 9 ft. .TONIGHT...Variable winds 10 to 20 kt. Seas 8 to 13 ft. .TUE...E to NE winds 5 to 15 kt. Seas 8 to 13 ft. .TUE NIGHT...N to NE winds 10 to 20 kt. Seas 7 to 12 ft. .WED...N winds 10 to 20 kt. Seas 5 to 9 ft. .WED NIGHT...N winds 10 to 20 kt. Seas 4 to 7 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 winds 15 to 25 kt. Seas 8 to 12 ft. .FRI NIGHT...N winds 15 to 25 kt. Seas 7 to 11 ft.