


Offshore Forecast
Issued by NWS
Issued by NWS
513 FZPN23 KWNM 052227 OFFN08 NAVTEX Marine Forecast for northern California waters NWS Ocean Prediction Center Washington DC 327 PM PDT Tue Aug 5 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 near the California coast will persist tonight while a warm front across the inner northern and central waters pushes E. Strong high pressure will build in from the west tonight and then persist through Wed night. A weak cold front or surface trough will move across the N waters Wed night, the central waters late Thu, and then dissipate Thu night. A low pressure trough will redevelop along interior and coastal California Wed night, strengthen into Fri night, then slowly weaken into Sun night. A trough will extend SW from the central California coast late Sat through Sun night. High pressure will prevail across the remainder of the region Wed night through Sun night. Point Saint George to Point Arena .TONIGHT...NW winds 15 to 25 kt. Seas 5 to 7 ft. .WED...NW winds 15 to 25 kt. Seas 5 to 7 ft. .WED NIGHT...N to NW winds 15 to 25 kt. Seas 5 to 8 ft. .THU...N to NW winds 20 to 30 kt. Seas 5 to 8 ft. .THU NIGHT...N winds 20 to 30 kt. Seas 6 to 11 ft. .FRI...N winds 20 to 30 kt. Seas 8 to 12 ft. .FRI NIGHT...N winds 20 to 30 kt. Seas 8 to 13 ft. .SAT...N winds 20 to 30 kt. Seas 9 to 13 ft. .SAT NIGHT...N winds 20 to 30 kt. Seas 8 to 12 ft. .SUN...N winds 20 to 30 kt. Seas 8 to 12 ft. .SUN NIGHT...N winds 15 to 25 kt. Seas 8 to 11 ft. Point Arena to Point Piedras Blancas .TONIGHT...NW winds 15 to 25 kt. Seas 4 to 8 ft. .WED...NW winds 15 to 25 kt. Seas 4 to 7 ft. .WED NIGHT...NW winds 15 to 25 kt. Seas 6 to 9 ft. .THU...NW winds 15 to 25 kt. Seas 5 to 9 ft. .THU NIGHT...N to NW winds 15 to 25 kt. Seas 7 to 11 ft. .FRI...N to NW winds 20 to 30 kt. Seas 8 to 12 ft. .FRI NIGHT...N winds 15 to 25 kt. Seas 7 to 11 ft. .SAT...N winds 20 to 30 kt. Seas 9 to 13 ft. .SAT NIGHT...N winds 15 to 25 kt. Seas 8 to 12 ft. .SUN...N winds 15 to 25 kt. Seas 7 to 11 ft. .SUN NIGHT...NE winds 10 to 20 kt. Seas 7 to 10 ft.