


Offshore Forecast
Issued by NWS
Issued by NWS
625 FZPN36 KWBC 181553 OFFN36 Marine Weather HF Voice Broadcast NWS Ocean Prediction Center Washington DC 853 AM PDT Mon Aug 18 2025 California waters- Inner waters from 60 nm to 150 nm offshore. Outer waters from 150 nm to 250 nm offshore. Conditions given represent the highest within that period. Seas given as significant wave height, which is the average height of the highest 1/3 of the waves. Individual waves may be more than twice the significant wave height. .SYNOPSIS FOR CALIFORNIA WATERS...Low pressure over the southern waters will slide E along a stalled boundary today and dissipate tonight. High pressure will build over the waters Tue then persist into Fri night. A coastal trough will develop Thu and persist into Fri night. Point St. George to Point Arena .TODAY...S to SW winds less than 10 kt. Seas 4 to 5 ft. .TONIGHT...SW winds less than 10 kt. Seas 4 to 5 ft. .TUE...W to NW winds less than 10 kt. Seas 4 to 5 ft. .TUE NIGHT...N to NW winds 5 to 15 kt. Seas 4 to 5 ft. .WED...N winds 10 to 20 kt. Seas 3 to 5 ft. .WED NIGHT...N winds 15 to 25 kt. Seas 4 to 7 ft. .THU...N winds 15 to 25 kt. Seas 5 to 8 ft. .THU NIGHT...N winds 15 to 25 kt. Seas 5 to 9 ft. .FRI...N winds 15 to 25 kt. Seas 5 to 9 ft. .FRI NIGHT...N winds 15 to 25 kt. Seas 5 to 9 ft. Point Arena to Santa Cruz Island, CA .TODAY...N to NW winds 10 to 20 kt. Seas 4 to 7 ft. .TONIGHT...NW winds 10 to 20 kt. Seas 4 to 6 ft. .TUE...N to NW winds 5 to 15 kt. Seas 4 to 5 ft. .TUE NIGHT...NW winds 15 to 25 kt. Seas 4 to 7 ft. .WED...NW winds 15 to 25 kt. Seas 4 to 8 ft. .WED NIGHT...N to NW winds 15 to 25 kt. Seas 5 to 9 ft. .THU...N to NW winds 15 to 25 kt. Seas 5 to 9 ft. .THU NIGHT...N to NW winds 15 to 25 kt. Seas 5 to 9 ft. .FRI...N to NW winds 15 to 25 kt. Seas 5 to 9 ft. .FRI NIGHT...N to NW winds 15 to 25 kt. Seas 6 to 9 ft. Santa Cruz Island, CA to San Clemente Island, CA...south to Guadalupe Island .TODAY...NW winds 10 to 20 kt. Seas 4 to 7 ft. .TONIGHT...NW winds 10 to 20 kt. Seas 3 to 6 ft. .TUE...NW winds 10 to 20 kt. Seas 3 to 6 ft. .TUE NIGHT...NW winds 15 to 25 kt. Seas 4 to 7 ft. .WED...NW winds 15 to 25 kt. Seas 5 to 8 ft. .WED NIGHT...NW winds 15 to 25 kt. Seas 5 to 9 ft. .THU...NW winds 15 to 25 kt. Seas 5 to 9 ft. .THU NIGHT...NW winds 10 to 20 kt. Seas 5 to 8 ft. .FRI...NW winds 10 to 20 kt. Seas 5 to 8 ft. .FRI NIGHT...NW winds 10 to 20 kt. Seas 4 to 7 ft. .Forecaster Hyde. Ocean Prediction Center.