FZPN24 KWNM 201738 OFFN09 NAVTEX Marine Forecast for Washington and Oregon waters NWS Ocean Prediction Center Washington DC 1038 AM PDT Fri Mar 20 2026 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 cold front will move across the waters late today. A high pressure ridge will then build over the waters tonight into Sat behind the front. Another cold front will move across the waters Sun. High pressure will briefly be center over the waters Sun night into Mon. A strengthening area of low pressure will approach the waters from the SW Mon night and track just NW of the waters Tue. The low pressure will bring a cold front across the waters Tue into Tue night. Canadian border to 45N ...GALE FORCE WINDS POSSIBLE MON NIGHT... .TODAY...NW winds 15 to 25 kt. Seas 7 to 10 ft. .TONIGHT...N to NW winds 15 to 25 kt. Seas 6 to 11 ft. .SAT...SW winds 20 to 30 kt. Seas 6 to 11 ft. .SAT NIGHT...W winds 20 to 30 kt. Seas 9 to 13 ft. .SUN...SW winds 10 to 20 kt. Seas 7 to 11 ft. .SUN NIGHT...N winds 10 to 20 kt. Seas 7 to 11 ft. .MON...SE winds 10 to 20 kt. Seas 7 to 11 ft. .MON NIGHT...S to SE winds 25 to 35 kt. Seas 7 to 12 ft. .TUE...S to SW winds 25 to 35 kt. Seas 12 to 20 ft. .TUE NIGHT...SW winds 25 to 35 kt. Seas 18 to 26 ft. 45N to Point Saint George .TODAY...N to NW winds 10 to 20 kt. Seas 7 to 10 ft. .TONIGHT...N winds 15 to 25 kt. Seas 6 to 10 ft. .SAT...N winds 20 to 30 kt. Seas 6 to 11 ft. .SAT NIGHT...N winds 20 to 30 kt. Seas 7 to 12 ft. .SUN...N winds 20 to 30 kt. Seas 7 to 12 ft. .SUN NIGHT...N winds 20 to 30 kt. Seas 9 to 13 ft. .MON...N to NE winds 15 to 25 kt. Seas 6 to 11 ft. .MON NIGHT...S winds 15 to 25 kt. Seas 5 to 9 ft. .TUE...S to SW winds 20 to 30 kt. Seas 8 to 13 ft. .TUE NIGHT...W to SW winds 15 to 25 kt. Seas 9 to 16 ft.