


Offshore Forecast
Issued by NWS
Issued by NWS
806 FZPN36 KWBC 170946 OFFN36 Marine Weather HF Voice Broadcast NWS Ocean Prediction Center Washington DC 246 AM PDT Thu Jul 17 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...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 St. George to Point Arena .TODAY...N winds 10 to 20 kt. Seas 6 to 10 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 6 to 8 ft. .SAT...N winds 15 to 25 kt. Seas 5 to 9 ft. .SAT NIGHT...N winds 15 to 25 kt. Seas 4 to 8 ft. .SUN...NW winds 10 to 20 kt. Seas 4 to 8 ft. .SUN NIGHT...NW winds 10 to 20 kt. Seas 4 to 7 ft. .MON...N to NW winds 5 to 15 kt. Seas 4 to 5 ft. .MON NIGHT...N to NW winds 5 to 15 kt. Seas 4 to 5 ft. Point Arena to Santa Cruz Island, CA .TODAY...N to NW winds 5 to 15 kt. Seas 5 to 7 ft. .TONIGHT...N to NW winds 5 to 15 kt. Seas 5 to 7 ft. .FRI...NW winds 5 to 15 kt. Seas 5 to 7 ft. .FRI NIGHT...NW winds 10 to 20 kt. Seas 5 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 8 ft. .SUN...N to 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 5 to 15 kt. Seas 4 to 5 ft. Santa Cruz Island, CA to San Clemente Island, CA...south to Guadalupe Island .TODAY...N winds less than 10 kt. Seas 3 to 6 ft. .TONIGHT...N to NW winds 5 to 10 kt. Seas 3 to 6 ft. .FRI...NW winds 5 to 15 kt. Seas 3 to 5 ft. .FRI NIGHT...NW winds 10 to 20 kt. Seas 3 to 6 ft. .SAT...NW winds 10 to 20 kt. Seas 3 to 6 ft. .SAT NIGHT...NW winds 10 to 20 kt. Seas 3 to 6 ft. .SUN...NW winds 5 to 15 kt. Seas 3 to 5 ft. .SUN NIGHT...NW winds 10 to 20 kt. Seas 3 to 5 ft. .MON...N to NW winds 10 to 20 kt. Seas 3 to 5 ft. .MON NIGHT...NW winds 10 to 20 kt. Seas 3 to 6 ft. .Forecaster Rowland. Ocean Prediction Center.