


Offshore Forecast
Issued by NWS
Issued by NWS
988 FZPN23 KWNM 170957 OFFN08 NAVTEX Marine Forecast for northern California waters NWS Ocean Prediction Center Washington DC 257 AM PDT Thu Jul 17 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...High pressure centered to the W and NW of the waters today will gradually weaken while shifting farther W through Fri night. A low pressure trough along the northern California coast will gradually weaken through Fri. The center of high pressure will drift farther W and NW of the area while extending a weakening ridge E and SE across the N and central waters Fri night through Mon night. The coastal trough will reestablish along the N and central areas by later Sat and Sat night and persist through Mon night. Point Saint George to Point Arena .TODAY...N winds 10 to 20 kt. Seas 6 to 9 ft. .TONIGHT...N winds 10 to 20 kt. Seas 6 to 9 ft. .FRI...N winds 10 to 20 kt. Seas 6 to 9 ft. .FRI NIGHT...N winds 15 to 25 kt. Seas 5 to 9 ft. .SAT...N winds 15 to 25 kt. Seas 6 to 10 ft. .SAT NIGHT...N winds 15 to 25 kt. Seas 6 to 9 ft. .SUN...NW winds 15 to 25 kt. Seas 5 to 8 ft. .SUN NIGHT...NW winds 15 to 25 kt. Seas 5 to 8 ft. .MON...NW winds 10 to 20 kt. Seas 4 to 7 ft. .MON NIGHT...N to NW winds 5 to 15 kt. Seas 4 to 6 ft. Point Arena to Point Piedras Blancas .TODAY...W to NW winds 5 to 15 kt. Seas 4 to 8 ft. .TONIGHT...N to NW winds 5 to 15 kt. Seas 4 to 8 ft. .FRI...W to NW winds 10 to 20 kt. Seas 4 to 7 ft. .FRI NIGHT...NW winds 15 to 25 kt. Seas 4 to 7 ft. .SAT...N to NW winds 10 to 20 kt. Seas 5 to 8 ft. .SAT NIGHT...N to NW winds 15 to 25 kt. Seas 5 to 9 ft. .SUN...NW winds 15 to 25 kt. Seas 5 to 8 ft. .SUN NIGHT...NW winds 10 to 20 kt. Seas 4 to 7 ft. .MON...NW winds 10 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...NW winds 10 to 20 kt. Seas 3 to 5 ft.