FZPN22 KWNM 181710 OFFN07 NAVTEX Marine Forecast for southern California waters NWS Ocean Prediction Center Washington DC 1010 AM PDT Mon May 18 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 low pressure trough will slowly strengthen along the N and central coast today before weakening Tue into Tue night. The high pressure to the W of the waters will strengthen today through Wed and then drift farther W and NW of the area Wed night through Thu night. On Fri and Fri night the high pressure will drift even farther W while gradually weakening. Point Piedras Blancas to Point Conception .TODAY...N winds 15 to 25 kt. Seas 10 to 14 ft. .TONIGHT...N winds 15 to 25 kt. Seas 9 to 13 ft. .TUE...N winds 15 to 25 kt. Seas 8 to 13 ft. .TUE NIGHT...N winds 15 to 25 kt. Seas 8 to 12 ft. .WED...N to NW winds 15 to 25 kt. Seas 8 to 12 ft. .WED NIGHT...N to NW winds 15 to 25 kt. Seas 7 to 12 ft. .THU...N to NW winds 15 to 25 kt. Seas 8 to 13 ft. .THU NIGHT...N to NW winds 10 to 20 kt. Seas 7 to 12 ft. .FRI...N to NW winds 10 to 20 kt. Seas 6 to 11 ft. .FRI NIGHT...N to NW winds 10 to 20 kt. Seas 6 to 9 ft. Point Conception to the Mexican border .TODAY...N winds 15 to 25 kt. Seas 10 to 14 ft. .TONIGHT...N winds 15 to 25 kt. Seas 8 to 13 ft. .TUE...N winds 10 to 20 kt. Seas 8 to 11 ft. .TUE NIGHT...N to NW winds 10 to 20 kt. Seas 7 to 11 ft. .WED...W to NW winds 5 to 15 kt. Seas 7 to 10 ft. .WED NIGHT...NW winds 10 to 20 kt. Seas 7 to 10 ft. .THU...NW winds 5 to 15 kt. Seas 7 to 10 ft. .THU NIGHT...NW winds 10 to 20 kt. Seas 7 to 10 ft. .FRI...NW winds 5 to 15 kt. Seas 5 to 9 ft. .FRI NIGHT...NW winds 5 to 15 kt. Seas 5 to 7 ft.