


Offshore Forecast
Issued by NWS
Issued by NWS
584 FZPN35 KWBC 200336 OFFN35 Marine Weather HF Voice Broadcast NWS Ocean Prediction Center Washington DC 836 PM PDT Tue Aug 19 2025 Washington and Oregon 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 WASHINGTON AND OREGON WATERS...A nearly stationary front will be along the outer Oregon waters and will dissipate tonight. High pressure will build over the waters tonight through Thu and gradually become weaker Thu into Fri while shifting W of the waters Sat through Sun night. Otherwise a coastal trough will develop over Oregon and persist into Sat night. A cold front will approach the waters from the NW Sat before dissipating W of the region Sat night. Sun into Sun night a coastal trough will develop along Vancouver island. Cape Flattery to Cape Lookout .TONIGHT...N winds less than 10 kt. Seas 4 to 5 ft. .WED...Variable winds 5 to 15 kt. Seas 3 to 4 ft. .WED NIGHT...N winds 10 to 20 kt. Seas 3 to 5 ft. .THU...N winds 10 to 20 kt. Seas 3 to 6 ft. .THU NIGHT...N winds 10 to 20 kt. Seas 3 to 6 ft. .FRI...N to NW winds 10 to 20 kt. Seas 3 to 6 ft. .FRI NIGHT...N to NW winds 10 to 20 kt. Seas 4 to 7 ft. .SAT...N to NW winds 10 to 20 kt. Seas 4 to 7 ft. .SAT NIGHT...N to NW winds 15 to 25 kt. Seas 4 to 7 ft. .SUN...NW winds 15 to 25 kt. Seas 5 to 8 ft. .SUN NIGHT...NW winds 15 to 25 kt. Seas 5 to 9 ft. Cape Lookout to Point St. George .TONIGHT...N winds 5 to 15 kt. Seas 4 to 5 ft. .WED...N to NE winds 10 to 20 kt. Seas 3 to 6 ft. .WED NIGHT...N winds 15 to 25 kt. Seas 5 to 8 ft. .THU...N winds 15 to 25 kt. Seas 5 to 9 ft. .THU NIGHT...N winds 15 to 25 kt. Seas 6 to 10 ft. .FRI...N winds 15 to 25 kt. Seas 6 to 10 ft. .FRI NIGHT...N winds 15 to 25 kt. Seas 4 to 8 ft. .SAT...N winds 15 to 25 kt. Seas 5 to 9 ft. .SAT NIGHT...N winds 15 to 25 kt. Seas 5 to 9 ft. .SUN...N winds 15 to 25 kt. Seas 5 to 8 ft. .SUN NIGHT...N winds 15 to 25 kt. Seas 6 to 9 ft. .Forecaster Anderson. Ocean Prediction Center.