FZUS56 KSEW 182138 CWFSEW Coastal Waters Forecast for Washington National Weather Service Seattle WA 238 PM PDT Mon May 18 2026 Inland waters of western Washington and the northern and central Washington coastal waters including the Olympic Coast National Marine Sanctuary PZZ100-191045- 238 PM PDT Mon May 18 2026 .SYNOPSIS FOR THE NORTHERN AND CENTRAL WASHINGTON COASTAL AND INLAND WATERS...High pressure will remain offshore throughout the week. A weak, splitting frontal system will move into the waters tonight into Tuesday. High pressure will then build back into the waters before another weak frontal system moves into the area Thursday into Friday. Onshore flow will persist over the next several days, with daily westerly pushes expected along the Strait of Juan de Fuca. $$ PZZ150-191045- Coastal Waters From Cape Flattery To James Island Out 10 Nm- 238 PM PDT Mon May 18 2026 .TONIGHT...W wind 5 to 10 kt, becoming SW after midnight. Seas 6 to 8 ft. Wave Detail: NW 2 ft at 6 seconds and W 8 ft at 15 seconds. .TUE...W wind around 5 kt, veering to NW in the afternoon. Seas 6 to 7 ft. Wave Detail: NW 2 ft at 6 seconds and W 7 ft at 13 seconds. .TUE NIGHT...NW wind 5 to 10 kt. Seas 6 to 8 ft. Wave Detail: N 2 ft at 5 seconds and W 8 ft at 11 seconds. .WED...NE wind around 5 kt, backing to NW in the afternoon. Seas 5 to 7 ft. Wave Detail: NW 2 ft at 6 seconds, W 7 ft at 9 seconds and W 2 ft at 13 seconds. .WED NIGHT...NW wind 5 to 10 kt. Seas 5 to 7 ft. Wave Detail: W 6 ft at 11 seconds. .THU...NW wind 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: W 6 ft at 9 seconds. .THU NIGHT...NW wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Seas 5 to 7 ft, building to 7 to 8 ft after midnight. Wave Detail: NW 2 ft at 6 seconds and W 8 ft at 9 seconds. .FRI...W wind 5 to 10 kt. Seas 6 to 8 ft. Wave Detail: NW 3 ft at 6 seconds and W 8 ft at 9 seconds. .FRI NIGHT...NW wind 5 to 10 kt. Seas 6 to 8 ft, building to 8 to 9 ft after midnight. Wave Detail: NW 2 ft at 6 seconds and W 9 ft at 9 seconds. .SAT...NW wind 10 to 15 kt. Seas 8 to 10 ft. Wave Detail: NW 2 ft at 5 seconds and W 9 ft at 9 seconds. .SAT NIGHT...NW wind 10 to 15 kt. Seas 8 to 9 ft. Wave Detail: NW 2 ft at 5 seconds, W 9 ft at 9 seconds and W 3 ft at 15 seconds. $$ PZZ153-191045- Coastal Waters From James Island To Point Grenville Out 10 Nm- 238 PM PDT Mon May 18 2026 .TONIGHT...NW wind 10 to 15 kt, easing to 5 to 10 kt late this evening, then becoming SW after midnight. Seas 6 to 8 ft. Wave Detail: NW 3 ft at 6 seconds and W 7 ft at 15 seconds. .TUE...SW wind around 5 kt, veering to NW 10 to 15 kt in the afternoon. Seas 6 to 7 ft. Wave Detail: NW 4 ft at 6 seconds and W 7 ft at 13 seconds. .TUE NIGHT...NW wind 10 to 15 kt. Seas 6 to 7 ft. Wave Detail: NW 3 ft at 6 seconds and W 7 ft at 11 seconds. .WED...NW wind 5 to 10 kt. Seas 5 to 7 ft. Wave Detail: NW 3 ft at 6 seconds and W 7 ft at 11 seconds. .WED NIGHT...NW wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Seas 5 to 6 ft. Wave Detail: N 2 ft at 5 seconds and W 6 ft at 11 seconds. .THU...NW wind 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: NW 2 ft at 5 seconds and W 6 ft at 10 seconds. .THU NIGHT...NW wind 10 to 15 kt. Seas 5 to 8 ft. Wave Detail: NW 3 ft at 6 seconds and NW 8 ft at 9 seconds. .FRI...NW wind 10 to 15 kt, easing to 5 to 10 kt in the afternoon. Seas 5 to 8 ft. Wave Detail: NW 3 ft at 6 seconds and W 8 ft at 9 seconds. .FRI NIGHT...NW wind 10 to 15 kt. Seas 6 to 9 ft. Wave Detail: NW 4 ft at 6 seconds and W 8 ft at 9 seconds. .SAT...NW wind 10 to 15 kt. Seas 6 to 9 ft. Wave Detail: NW 3 ft at 5 seconds and W 9 ft at 9 seconds. .SAT NIGHT...NW wind 10 to 15 kt. Seas 6 to 8 ft. Wave Detail: NW 3 ft at 5 seconds, NW 8 ft at 9 seconds and W 3 ft at 15 seconds. $$ PZZ156-191045- Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm- 238 PM PDT Mon May 18 2026 .TONIGHT...NW wind 10 to 15 kt, becoming W 5 to 10 kt late. Seas 7 to 10 ft. Wave Detail: NW 7 ft at 6 seconds and W 8 ft at 15 seconds. .TUE...W wind 5 to 10 kt, becoming NW 10 to 15 kt in the afternoon. Seas 6 to 7 ft. Wave Detail: NW 3 ft at 6 seconds and W 7 ft at 13 seconds. .TUE NIGHT...NW wind around 15 kt. Seas 7 to 8 ft. Wave Detail: NW 5 ft at 5 seconds and W 8 ft at 12 seconds. .WED...NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: NW 2 ft at 6 seconds and W 7 ft at 9 seconds. .WED NIGHT...NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: N 3 ft at 4 seconds and NW 7 ft at 10 seconds. .THU...N wind 5 to 10 kt, becoming NW 10 to 15 kt in the afternoon. Seas 5 to 7 ft. Wave Detail: N 2 ft at 4 seconds and NW 7 ft at 8 seconds. .THU NIGHT...NW wind 15 to 20 kt. Seas 6 to 9 ft. Wave Detail: NW 3 ft at 6 seconds and NW 9 ft at 9 seconds. .FRI...NW wind 10 to 15 kt. Seas 5 to 8 ft. Wave Detail: NW 3 ft at 6 seconds and NW 8 ft at 9 seconds. .FRI NIGHT...NW wind 15 to 20 kt. Seas 6 to 9 ft. Wave Detail: NW 3 ft at 6 seconds and NW 9 ft at 9 seconds. .SAT...NW wind 15 to 20 kt. Seas 7 to 10 ft. Wave Detail: NW 3 ft at 5 seconds and NW 9 ft at 9 seconds. .SAT NIGHT...NW wind 15 to 20 kt. Seas 7 to 9 ft. Wave Detail: NW 2 ft at 5 seconds, NW 8 ft at 9 seconds and W 2 ft at 17 seconds. $$ PZZ170-191045- Coastal Waters From Cape Flattery To James Island 10 To 60 Nm- 238 PM PDT Mon May 18 2026 .TONIGHT...W wind 5 to 10 kt. Seas 7 to 9 ft. Wave Detail: NW 3 ft at 6 seconds and W 8 ft at 14 seconds. .TUE...NW wind 10 to 15 kt. Seas 7 to 8 ft. Wave Detail: NW 4 ft at 7 seconds and W 8 ft at 13 seconds. .TUE NIGHT...NW wind 15 to 20 kt. Seas 8 to 9 ft. Wave Detail: NW 9 ft at 8 seconds and W 8 ft at 12 seconds. .WED...NW wind 15 to 20 kt, easing to 10 to 15 kt in the afternoon. Seas 6 to 8 ft. Wave Detail: NW 5 ft at 7 seconds, NW 8 ft at 9 seconds and W 2 ft at 12 seconds. .WED NIGHT...NW wind 10 to 15 kt. Seas 5 to 8 ft, building to 7 to 8 ft after midnight. Wave Detail: NW 2 ft at 5 seconds and NW 8 ft at 9 seconds. .THU...NW wind 10 to 15 kt, rising to 15 to 20 kt in the afternoon. Seas 6 to 8 ft. Wave Detail: NW 8 ft at 7 seconds. .THU NIGHT...NW wind 15 to 20 kt. Seas 7 to 10 ft, building to 9 to 11 ft after midnight. Wave Detail: NW 4 ft at 6 seconds and NW 11 ft at 10 seconds. .FRI...NW wind 15 to 20 kt. Seas 8 to 11 ft. Wave Detail: NW 8 ft at 6 seconds and W 10 ft at 9 seconds. .FRI NIGHT...NW wind 15 to 20 kt, rising to 20 to 25 kt after midnight. Seas 8 to 11 ft, building to 10 to 12 ft after midnight. Wave Detail: NW 3 ft at 5 seconds, NW 12 ft at 9 seconds and SW 2 ft at 17 seconds. .SAT...NW wind 20 to 25 kt, easing to 15 to 20 kt in the afternoon. Seas 9 to 13 ft. Wave Detail: NW 3 ft at 5 seconds and NW 12 ft at 9 seconds. .SAT NIGHT...NW wind 15 to 20 kt. Seas 9 to 11 ft. Wave Detail: NW 4 ft at 6 seconds, NW 10 ft at 9 seconds and W 4 ft at 15 seconds. $$ PZZ173-191045- Coastal Waters From James Island To Point Grenville 10 To 60 Nm- 238 PM PDT Mon May 18 2026 .TONIGHT...W wind 5 to 10 kt. Seas 7 to 9 ft. Wave Detail: NW 4 ft at 6 seconds and W 8 ft at 15 seconds. .TUE...NW wind 10 to 15 kt. Seas 7 to 9 ft. Wave Detail: NW 6 ft at 7 seconds and W 7 ft at 13 seconds. .TUE NIGHT...NW wind 15 to 20 kt. Seas 8 to 9 ft. Wave Detail: NW 8 ft at 7 seconds and W 7 ft at 12 seconds. .WED...NW wind 15 to 20 kt, easing to 10 to 15 kt in the afternoon. Seas 6 to 9 ft. Wave Detail: NW 8 ft at 9 seconds. .WED NIGHT...NW wind 15 to 20 kt. Seas 6 to 9 ft. Wave Detail: N 5 ft at 6 seconds and NW 8 ft at 11 seconds. .THU...NW wind 15 to 20 kt. Seas 6 to 8 ft. Wave Detail: NW 7 ft at 7 seconds. .THU NIGHT...NW wind 15 to 20 kt. Seas 7 to 10 ft, building to 9 to 11 ft after midnight. Wave Detail: NW 8 ft at 6 seconds and NW 10 ft at 9 seconds. .FRI...NW wind 15 to 20 kt. Seas 9 to 12 ft, subsiding to 8 to 10 ft in the afternoon. Wave Detail: NW 10 ft at 8 seconds. .FRI NIGHT...NW wind 15 to 20 kt, rising to 20 to 25 kt after midnight. Seas 9 to 12 ft. Wave Detail: NW 12 ft at 9 seconds and SW 2 ft at 17 seconds. .SAT...NW wind 20 to 25 kt, easing to 15 to 20 kt in the afternoon. Seas 10 to 13 ft, subsiding to 9 to 11 ft in the afternoon. Wave Detail: NW 6 ft at 5 seconds, NW 12 ft at 9 seconds and SW 2 ft at 17 seconds. .SAT NIGHT...NW wind 15 to 20 kt. Seas 8 to 10 ft. Wave Detail: NW 9 ft at 8 seconds, W 4 ft at 15 seconds and SW 2 ft at 16 seconds. $$ PZZ176-191045- Coastal Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm- 238 PM PDT Mon May 18 2026 .TONIGHT...W wind 5 to 10 kt. Seas 8 to 10 ft. Wave Detail: NW 5 ft at 6 seconds and W 8 ft at 15 seconds. .TUE...NW wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Seas 7 to 9 ft. Wave Detail: NW 6 ft at 7 seconds and W 8 ft at 13 seconds. .TUE NIGHT...NW wind 15 to 20 kt. Seas 8 to 9 ft. Wave Detail: N 7 ft at 6 seconds and NW 8 ft at 12 seconds. .WED...NW wind 15 to 20 kt, easing to 10 to 15 kt in the afternoon. Seas around 8 ft, building to 7 to 10 ft in the afternoon. Wave Detail: NW 7 ft at 8 seconds and NW 7 ft at 11 seconds. .WED NIGHT...NW wind 15 to 20 kt. Seas 6 to 9 ft. Wave Detail: N 7 ft at 6 seconds and NW 7 ft at 11 seconds. .THU...NW wind 10 to 15 kt. Seas 7 to 8 ft. Wave Detail: N 7 ft at 6 seconds and NW 7 ft at 9 seconds. .THU NIGHT...NW wind 15 to 20 kt. Seas 7 to 9 ft, building to 9 to 10 ft after midnight. Wave Detail: NW 10 ft at 8 seconds. .FRI...NW wind 15 to 20 kt. Seas 8 to 11 ft. Wave Detail: NW 10 ft at 8 seconds. .FRI NIGHT...NW wind 15 to 20 kt. Seas 8 to 10 ft, building to 10 to 11 ft after midnight. Wave Detail: NW 4 ft at 6 seconds, NW 11 ft at 9 seconds and SW 2 ft at 17 seconds. .SAT...NW wind 15 to 20 kt. Seas 9 to 12 ft. Wave Detail: NW 5 ft at 5 seconds, NW 12 ft at 9 seconds and SW 2 ft at 17 seconds. .SAT NIGHT...NW wind around 15 kt. Seas 8 to 10 ft. Wave Detail: NW 7 ft at 5 seconds, NW 9 ft at 8 seconds and NW 4 ft at 15 seconds. $$ PZZ130-191045- West Entrance U.S. Waters Strait Of Juan De Fuca- 238 PM PDT Mon May 18 2026 .TONIGHT...W wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Seas 4 to 6 ft. Wave Detail: W 6 ft at 14 seconds. .TUE...W wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: W 5 ft at 12 seconds. .TUE NIGHT...W wind 10 to 15 kt, becoming SW 5 to 10 kt after midnight. Seas 4 to 6 ft. Wave Detail: W 6 ft at 12 seconds. .WED...SE wind around 5 kt, backing to N in the afternoon. Seas 4 to 6 ft. Wave Detail: W 6 ft at 11 seconds. .WED NIGHT...W wind around 10 kt, easing to around 5 kt after midnight. Seas 3 to 5 ft. Wave Detail: W 5 ft at 11 seconds. .THU...SE wind around 5 kt, veering to NW in the afternoon. Seas 3 to 4 ft. Wave Detail: W 4 ft at 9 seconds. .THU NIGHT...W wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: W 5 ft at 10 seconds. .FRI...SW wind 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: W 6 ft at 10 seconds. .FRI NIGHT...W wind 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: W 6 ft at 10 seconds. .SAT...W wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: W 6 ft at 10 seconds. .SAT NIGHT...W wind 15 to 20 kt, easing to 10 to 15 kt after midnight. Seas 5 to 7 ft. Wave Detail: W 7 ft at 9 seconds and W 2 ft at 15 seconds. $$ PZZ131-191045- Central U.S. Waters Strait Of Juan De Fuca- 238 PM PDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TONIGHT...W wind 20 to 25 kt, easing to 10 to 15 kt. Waves 4 to 6 ft. .TUE...W wind 5 to 10 kt, rising to 15 to 20 kt in the afternoon. Waves around 3 ft. .TUE NIGHT...W wind 15 to 20 kt, easing to 10 to 15 kt after midnight. Waves 3 to 5 ft. .WED...NW wind around 5 kt, veering to NE around 5 kt in the afternoon. Waves around 3 ft in the morning, then around 2 ft or less. .WED NIGHT...W wind 5 to 10 kt. Waves around 2 ft or less. .THU...NE wind around 5 kt. Waves around 2 ft or less. .THU NIGHT...W wind 10 to 15 kt. Waves around 2 ft or less, then around 3 ft after midnight. .FRI...W wind around 5 kt, veering to NW around 5 kt in the afternoon. Waves around 3 ft in the morning, then around 2 ft or less. .FRI NIGHT...W wind 10 to 15 kt. Waves 3 to 4 ft. .SAT...W wind 5 to 10 kt, rising to 15 to 20 kt in the afternoon. Waves 3 to 4 ft. .SAT NIGHT...W wind 20 to 25 kt. Waves 4 to 6 ft. $$ PZZ132-191045- East Entrance U.S. Waters Strait Of Juan De Fuca- 238 PM PDT Mon May 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TONIGHT...W wind 15 to 20 kt, easing to 10 to 15 kt after midnight. Waves 3 to 5 ft. .TUE...S wind 5 to 10 kt. Waves around 3 ft in the morning, then around 2 ft or less. .TUE NIGHT...W wind 10 to 15 kt. Waves 3 to 4 ft. .WED...NW wind 5 to 10 kt. Waves around 3 ft in the morning, then around 2 ft or less. .WED NIGHT...W wind 5 to 10 kt. Waves around 2 ft or less. .THU...NW wind around 5 kt. Waves around 2 ft or less. .THU NIGHT...W wind 5 to 10 kt. Waves around 2 ft or less. .FRI...W wind around 5 kt. Waves around 2 ft or less. .FRI NIGHT...W wind 5 to 10 kt. Waves around 2 ft or less, then around 3 ft after midnight. .SAT...W wind 5 to 10 kt. Waves around 3 ft. .SAT NIGHT...W wind 15 to 20 kt. Waves 3 to 4 ft, building to 4 to 6 ft after midnight. $$ PZZ134-191045- Admiralty Inlet- 238 PM PDT Mon May 18 2026 .TONIGHT...NW wind 10 to 15 kt, becoming W 5 to 10 kt after midnight, then becoming SW late. Waves around 2 ft or less. .TUE...S wind around 5 kt, backing to N around 5 kt in the afternoon. Waves around 2 ft or less. .TUE NIGHT...NW wind 5 to 10 kt. Waves around 2 ft or less. .WED...NW wind around 5 kt, rising to around 10 kt in the afternoon. Waves around 2 ft or less. .WED NIGHT...NW wind 5 to 10 kt, easing to around 5 kt after midnight. Waves around 2 ft or less. .THU...NW wind around 5 kt, rising to 5 to 10 kt in the afternoon. Waves around 2 ft or less. .THU NIGHT...NW wind 5 to 10 kt, becoming W after midnight. Waves around 2 ft or less. .FRI...W wind around 5 kt, veering to NW in the afternoon. Waves around 2 ft or less. .FRI NIGHT...NW wind 5 to 10 kt, becoming W after midnight. Waves around 2 ft or less. .SAT...S wind around 5 kt, veering to NW in the afternoon. Waves around 2 ft or less. .SAT NIGHT...NW wind 10 to 15 kt, becoming W 5 to 10 kt after midnight. Waves around 2 ft or less. $$ PZZ133-191045- Northern Inland Waters Including The San Juan Islands- 238 PM PDT Mon May 18 2026 .TONIGHT...SW wind 5 to 10 kt, becoming S late. Waves around 2 ft or less. .TUE...S wind around 5 kt. Waves around 2 ft or less. .TUE NIGHT...SW wind around 5 kt. Waves around 2 ft or less. .WED...NW wind around 5 kt, rising to 5 to 10 kt in the afternoon. Waves around 2 ft or less. .WED NIGHT...W wind around 5 kt, backing to S after midnight. Waves around 2 ft or less. .THU...Light and variable winds, becoming NW around 5 kt in the afternoon. Waves around 2 ft or less. .THU NIGHT...SW wind around 5 kt. Waves around 2 ft or less. .FRI...W wind around 5 kt. Waves around 2 ft or less. .FRI NIGHT...SW wind around 5 kt. Waves around 2 ft or less. .SAT...SW wind around 5 kt, rising to 5 to 10 kt in the afternoon. Waves around 2 ft or less. .SAT NIGHT...SW wind 5 to 10 kt. Waves around 2 ft or less. $$ PZZ135-191045- Puget Sound and Hood Canal- 238 PM PDT Mon May 18 2026 .TONIGHT...N wind 5 to 10 kt, easing to around 5 kt late this evening, veering to S after midnight. Waves around 2 ft or less. Patchy fog late. .TUE...SW wind around 5 kt. Waves around 2 ft or less. .TUE NIGHT...N wind around 5 kt. Waves around 2 ft or less. .WED...Light and variable winds, becoming N 5 to 10 kt in the afternoon. Waves around 2 ft or less. .WED NIGHT...N wind 5 to 10 kt, easing to around 5 kt after midnight. Waves around 2 ft or less. .THU...Light and variable winds, becoming N around 5 kt in the afternoon. Waves around 2 ft or less. .THU NIGHT...N wind 5 to 10 kt, becoming NW after midnight. Waves around 2 ft or less. .FRI...W wind around 5 kt. Waves around 2 ft or less. .FRI NIGHT...W wind around 5 kt. Waves around 2 ft or less. .SAT...SW wind around 5 kt. Waves around 2 ft or less. .SAT NIGHT...NW wind 5 to 10 kt, becoming SW after midnight. Waves around 2 ft or less. $$ PZZ110-191045- Grays Harbor Bar- 238 PM PDT Mon May 18 2026 Combined seas 5 to 7 feet this afternoon. Bar conditions light, becoming moderate. Maximum ebb currents will occur around 645 PM Monday, 700 AM Tuesday, and 740 AM Tuesday. The Tuesday morning ebb will be very strong. $$