


Offshore Forecast
Issued by NWS
Issued by NWS
399 FZPN23 KWNM 140608 OFFN08 NAVTEX Marine Forecast for northern California waters NWS Ocean Prediction Center Washington DC 1108 PM PDT Wed Aug 13 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 trough along the California coast will persist tonight through Fri night. The coastal trough will slowly begin to dissipate as a strong cold front will approach the northern waters Fri night into Sat. The front will slowly move into the central waters Sat night and then dissipate across the southern waters Sun. High pressure will build in across the central and southern waters Sun into Sun night and persist through Mon night while a weak surface trough moves across N portions. Point Saint George to Point Arena .TONIGHT...N winds 15 to 25 kt. Seas 5 to 8 ft. Areas of fog with vsby 1 nm or less. .THU...N to NW winds 20 to 30 kt. Seas 6 to 9 ft. .THU NIGHT...N to NW winds 20 to 30 kt. Seas 6 to 10 ft. .FRI...W to NW winds 15 to 25 kt. Seas 5 to 8 ft. .FRI NIGHT...W to NW winds 10 to 20 kt. Seas 5 to 7 ft. .SAT...NW winds 5 to 15 kt. Seas 5 to 7 ft. .SAT NIGHT...NW winds 5 to 15 kt. Seas 5 to 7 ft. .SUN...W to NW winds 5 to 15 kt. Seas 5 to 7 ft. .SUN NIGHT...Variable winds less than 10 kt. Seas 4 to 7 ft. .MON...S to SW winds less than 10 kt. Seas 4 to 6 ft. .MON NIGHT...Variable winds less than 10 kt. Seas 4 to 6 ft. Point Arena to Point Piedras Blancas .TONIGHT...N to NW winds 15 to 25 kt. Seas 5 to 8 ft. Areas of fog with vsby 1 nm or less. .THU...N to NW winds 15 to 25 kt. Seas 6 to 9 ft. .THU NIGHT...N to NW winds 20 to 30 kt. Seas 7 to 11 ft. .FRI...NW winds 20 to 30 kt. Seas 6 to 11 ft. .FRI NIGHT...NW winds 20 to 30 kt. Seas 6 to 9 ft. .SAT...NW winds 20 to 30 kt. Seas 4 to 7 ft. .SAT NIGHT...NW winds 20 to 30 kt. Seas 4 to 7 ft. .SUN...NW winds 5 to 15 kt. Seas 4 to 7 ft. .SUN NIGHT...N to NW winds 10 to 20 kt. Seas 4 to 7 ft. .MON...NW winds 10 to 20 kt. Seas 3 to 6 ft. .MON NIGHT...NW winds 10 to 20 kt. Seas 4 to 6 ft.