FZPN23 KWNM 211110 OFFN08 NAVTEX Marine Forecast for northern California waters NWS Ocean Prediction Center Washington DC 410 AM PDT Tue Jul 21 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 along the California coast or just inland through Fri night. A weak trough will develop along the S California coast Wed night and persist through Fri night. High pressure will gradually drift SW from the southern Gulf of Alaska to the central North Pacific today through Sat night. The remnants of Tropical Storm Elida will approach the outer southern waters from the SW later today into tonight. The system will then drift E into the central waters and dissipate Wed into Wed night. Point Saint George to Point Arena .TODAY...N winds 5 to 15 kt. Seas 5 to 7 ft. .TONIGHT...NE winds 10 to 20 kt. Seas 5 to 7 ft. .WED...S to SE winds 10 to 20 kt. Seas 5 to 7 ft. .WED NIGHT...S to SW winds 5 to 15 kt. Seas 5 to 7 ft. .THU...S to SW winds 5 to 15 kt. Seas 5 to 7 ft. .THU NIGHT...S to SW winds 5 to 15 kt. Seas 5 to 7 ft. .FRI...W to NW winds 10 to 20 kt. Seas 5 to 8 ft. .FRI NIGHT...W winds 10 to 20 kt. Seas 5 to 8 ft. .SAT...W to NW winds 10 to 20 kt. Seas 5 to 8 ft. .SAT NIGHT...NW winds 10 to 20 kt. Seas 5 to 8 ft. Point Arena to Point Piedras Blancas .TODAY...E to NE winds 10 to 20 kt. Seas 5 to 9 ft. .TONIGHT...S to SE winds 10 to 20 kt. Seas 6 to 10 ft. .WED...W winds 10 to 20 kt. Seas 5 to 8 ft. .WED NIGHT...W to NW winds 10 to 20 kt. Seas 4 to 7 ft. .THU...NW winds 15 to 25 kt. Seas 4 to 7 ft. .THU NIGHT...NW winds 15 to 25 kt. Seas 5 to 8 ft. .FRI...NW winds 15 to 25 kt. Seas 5 to 8 ft. .FRI NIGHT...NW winds 15 to 25 kt. Seas 5 to 9 ft. .SAT...NW winds 15 to 25 kt. Seas 5 to 8 ft. .SAT NIGHT...NW winds 15 to 25 kt. Seas 5 to 9 ft.