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National Weather Service Marine Forecast FZUS56 KSEW

FZUS56 KSEW 190815
CWFSEW

Coastal Waters Forecast for Washington
National Weather Service Seattle WA
115 AM PDT Mon Oct 19 2026

Inland waters of western Washington and the northern and central Washington coastal waters including the Olympic Coast National Marine Sanctuary

PZZ100-192115
115 AM PDT Mon Oct 19 2026

.SYNOPSIS FOR THE NORTHERN AND CENTRAL WASHINGTON COASTAL AND INLAND WATERS...A low pressure system passing southward well offshore will turn winds northerly or weakly offshore into Monday. Weak high pressure will remain across the waters into the middle of the coming week for rather quiet conditions. Onshore flow will increase on Thursday and a front may reach the area toward the end of the week.

PZZ150-192115
Coastal Waters From Cape Flattery To James Island Out 10 Nm
115 AM PDT Mon Oct 19 2026

TODAY
SE wind around 5 kt, backing to N late. Seas 5 to 6 ft. Wave Detail: W 6 ft at 11 seconds, W 5 ft at 15 seconds and SW 2 ft at 17 seconds.

TONIGHT
N wind around 5 kt. Seas 5 to 7 ft. Wave Detail: W 7 ft at 11 seconds, W 2 ft at 14 seconds and SW 2 ft at 16 seconds.

TUE
NE wind 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: SW 3 ft at 8 seconds, W 5 ft at 10 seconds and W 3 ft at 14 seconds.

TUE NIGHT
N wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: N 2 ft at 5 seconds, SW 2 ft at 7 seconds and W 5 ft at 12 seconds.

WED
NE wind around 5 kt, backing to NW around 5 kt in the afternoon. Seas 4 to 5 ft. Wave Detail: NW 2 ft at 6 seconds and W 4 ft at 11 seconds.

WED NIGHT
NW wind 5 to 10 kt. Seas 4 to 5 ft, building to 5 to 7 ft after midnight. Wave Detail: NW 3 ft at 5 seconds, W 5 ft at 11 seconds and W 6 ft at 15 seconds.

THU
NW wind 5 to 10 kt, rising to 15 to 20 kt in the afternoon. Seas 6 to 7 ft, building to 7 to 10 ft in the afternoon. Wave Detail: NW 4 ft at 6 seconds and W 10 ft at 12 seconds.

THU NIGHT
NW wind 20 to 25 kt, easing to 15 to 20 kt after midnight. Seas 7 to 10 ft, building to 9 to 12 ft after midnight. Wave Detail: NW 3 ft at 7 seconds and NW 12 ft at 11 seconds.

FRI
NW wind 10 to 15 kt, easing to around 5 kt in the afternoon. Seas 7 to 9 ft, subsiding to 6 to 7 ft in the afternoon. Wave Detail: NW 2 ft at 6 seconds and W 9 ft at 11 seconds.

FRI NIGHT
SE wind around 5 kt, rising to 5 to 10 kt after midnight. Seas 5 to 6 ft. Wave Detail: W 6 ft at 11 seconds.

PZZ153-192115
Coastal Waters From James Island To Point Grenville Out 10 Nm
115 AM PDT Mon Oct 19 2026

TODAY
SE wind around 5 kt, veering to NW late. Seas 5 to 6 ft. Wave Detail: W 6 ft at 11 seconds, W 5 ft at 15 seconds and SW 2 ft at 17 seconds.

TONIGHT
N wind 5 to 10 kt. Seas 5 to 7 ft. Wave Detail: W 6 ft at 11 seconds, W 5 ft at 15 seconds and SW 2 ft at 16 seconds.

TUE
NE wind around 5 kt, backing to N in the afternoon. Seas 4 to 5 ft. Wave Detail: N 2 ft at 4 seconds, SW 2 ft at 7 seconds and W 5 ft at 10 seconds.

TUE NIGHT
N wind around 5 kt. Seas 4 to 5 ft. Wave Detail: N 2 ft at 6 seconds and W 5 ft at 10 seconds.

WED
NE wind around 5 kt, backing to NW in the afternoon. Seas 3 to 5 ft. Wave Detail: NW 3 ft at 7 seconds and W 4 ft at 11 seconds.

WED NIGHT
NW wind 5 to 10 kt. Seas 3 to 5 ft, building to 5 to 7 ft after midnight. Wave Detail: NW 5 ft at 6 seconds, W 4 ft at 12 seconds and W 6 ft at 16 seconds.

THU
N wind 5 to 10 kt, becoming NW 10 to 15 kt in the afternoon. Seas 6 to 7 ft, building to 7 to 10 ft in the afternoon. Wave Detail: NW 4 ft at 6 seconds and W 10 ft at 13 seconds.

THU NIGHT
NW wind 10 to 15 kt, rising to 15 to 20 kt after midnight. Seas 8 to 11 ft. Wave Detail: NW 6 ft at 7 seconds and W 11 ft at 12 seconds.

FRI
NW wind 10 to 15 kt, easing to 5 to 10 kt in the afternoon. Seas 7 to 10 ft, subsiding to 6 to 8 ft in the afternoon. Wave Detail: N 3 ft at 7 seconds and W 9 ft at 11 seconds.

FRI NIGHT
N wind around 5 kt, veering to SE around 5 kt after midnight. Seas 5 to 7 ft. Wave Detail: W 6 ft at 11 seconds.

PZZ156-192115
Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm
115 AM PDT Mon Oct 19 2026

TODAY
SE wind 5 to 10 kt, becoming S early this afternoon, veering to W late. Seas 5 to 6 ft. Wave Detail: W 6 ft at 11 seconds, W 6 ft at 15 seconds and SW 2 ft at 17 seconds.

TONIGHT
N wind 5 to 10 kt. Seas 5 to 7 ft. Wave Detail: W 7 ft at 12 seconds and W 4 ft at 15 seconds.

TUE
E wind 5 to 10 kt, backing to N in the afternoon. Seas 4 to 6 ft. Wave Detail: NW 2 ft at 5 seconds, W 5 ft at 10 seconds and W 2 ft at 14 seconds.

TUE NIGHT
N wind 5 to 10 kt, veering to NE after midnight. Seas 4 to 5 ft. Wave Detail: NW 2 ft at 6 seconds and W 5 ft at 10 seconds.

WED
NE wind 5 to 10 kt, backing to N in the afternoon. Seas 3 to 5 ft. Wave Detail: NW 3 ft at 7 seconds and W 4 ft at 11 seconds.

WED NIGHT
NW wind 10 to 15 kt. Seas 3 to 5 ft, building to 5 to 7 ft after midnight. Wave Detail: NW 6 ft at 6 seconds, W 4 ft at 12 seconds and W 6 ft at 17 seconds.

THU
NW wind 10 to 15 kt, rising to 15 to 20 kt in the afternoon. Seas 7 to 10 ft. Wave Detail: NW 3 ft at 6 seconds and NW 10 ft at 14 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 11 seconds.

FRI
NW wind 15 to 20 kt, easing to 5 to 10 kt in the afternoon. Seas 6 to 9 ft. Wave Detail: NW 3 ft at 8 seconds and NW 9 ft at 11 seconds.

FRI NIGHT
NW wind around 5 kt, veering to SE after midnight. Seas 5 to 7 ft. Wave Detail: W 6 ft at 11 seconds. A chance of rain after midnight.

PZZ170-192115
Coastal Waters From Cape Flattery To James Island 10 To 60 Nm
115 AM PDT Mon Oct 19 2026

TODAY
NE wind around 5 kt. Seas 5 to 8 ft. Wave Detail: W 7 ft at 11 seconds, W 5 ft at 15 seconds and S 2 ft at 17 seconds.

TONIGHT
N wind 5 to 10 kt. Seas 5 to 8 ft. Wave Detail: SW 3 ft at 8 seconds, W 7 ft at 11 seconds and W 2 ft at 15 seconds.

TUE
N wind 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: SW 3 ft at 8 seconds, W 5 ft at 9 seconds and W 3 ft at 14 seconds.

TUE NIGHT
N wind 5 to 10 kt. Seas 5 to 7 ft. Wave Detail: N 4 ft at 6 seconds, SW 2 ft at 7 seconds and NW 5 ft at 10 seconds.

WED
N wind 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: NW 4 ft at 6 seconds, W 5 ft at 11 seconds and S 2 ft at 16 seconds.

WED NIGHT
NW wind 5 to 10 kt. Seas 5 to 7 ft, building to 7 to 8 ft after midnight. Wave Detail: NW 3 ft at 5 seconds, W 5 ft at 11 seconds and NW 8 ft at 15 seconds.

THU
NW wind 15 to 20 kt, rising to 20 to 25 kt in the afternoon. Seas 7 to 10 ft, building to 9 to 10 ft in the afternoon. Wave Detail: NW 8 ft at 7 seconds, NW 10 ft at 12 seconds and S 2 ft at 14 seconds.

THU NIGHT
NW wind 20 to 25 kt. Seas 9 to 10 ft, building to 10 to 13 ft after midnight. Wave Detail: NW 7 ft at 8 seconds, NW 13 ft at 11 seconds and S 2 ft at 15 seconds.

FRI
NW wind 15 to 20 kt, easing to 10 to 15 kt in the afternoon. Seas 7 to 10 ft. Wave Detail: NW 3 ft at 7 seconds, NW 10 ft at 11 seconds and S 2 ft at 15 seconds.

FRI NIGHT
NW wind around 5 kt, veering to SE after midnight. Seas 5 to 7 ft. Wave Detail: W 7 ft at 11 seconds and S 2 ft at 16 seconds. A chance of rain after midnight.

PZZ173-192115
Coastal Waters From James Island To Point Grenville 10 To 60 Nm
115 AM PDT Mon Oct 19 2026

TODAY
E wind around 5 kt, backing to N late. Seas 6 to 8 ft. Wave Detail: W 7 ft at 11 seconds, W 5 ft at 15 seconds and S 2 ft at 17 seconds.

TONIGHT
N wind 10 to 15 kt. Seas 6 to 8 ft. Wave Detail: N 2 ft at 4 seconds, W 7 ft at 11 seconds and W 2 ft at 15 seconds.

TUE
N wind 10 to 15 kt. Seas 6 to 7 ft. Wave Detail: N 2 ft at 4 seconds, SW 2 ft at 8 seconds and W 6 ft at 10 seconds.

TUE NIGHT
N wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: N 4 ft at 7 seconds, NW 6 ft at 10 seconds and S 2 ft at 16 seconds.

WED
N wind 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: NW 4 ft at 8 seconds, W 5 ft at 11 seconds and NW 2 ft at 14 seconds.

WED NIGHT
NW wind around 10 kt. Seas 5 to 7 ft, building to 7 to 8 ft after midnight. Wave Detail: NW 5 ft at 5 seconds, W 5 ft at 12 seconds and NW 8 ft at 15 seconds.

THU
NW wind 15 to 20 kt, rising to 20 to 25 kt in the afternoon. Seas 8 to 10 ft. Wave Detail: NW 6 ft at 6 seconds, NW 10 ft at 13 seconds and S 2 ft at 15 seconds.

THU NIGHT
NW wind 20 to 25 kt. Seas 9 to 10 ft, building to 10 to 13 ft after midnight. Wave Detail: W 8 ft at 7 seconds, NW 12 ft at 12 seconds and S 2 ft at 15 seconds.

FRI
NW wind 15 to 20 kt, easing to 10 to 15 kt in the afternoon. Seas 8 to 10 ft. Wave Detail: NW 5 ft at 8 seconds, NW 10 ft at 11 seconds and S 2 ft at 16 seconds.

FRI NIGHT
NW wind around 5 kt, backing to SE after midnight. Seas 6 to 7 ft. Wave Detail: W 7 ft at 11 seconds and S 2 ft at 17 seconds. A chance of rain after midnight.

PZZ176-192115
Coastal Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm
115 AM PDT Mon Oct 19 2026

TODAY
SE wind around 5 kt, backing to N late. Seas 6 to 8 ft. Wave Detail: W 8 ft at 12 seconds, W 5 ft at 15 seconds and SW 2 ft at 17 seconds.

TONIGHT
N wind 10 to 15 kt. Seas 6 to 9 ft. Wave Detail: N 4 ft at 4 seconds, W 8 ft at 11 seconds and W 2 ft at 14 seconds.

TUE
N wind 10 to 15 kt, easing to 5 to 10 kt in the afternoon. Seas 6 to 7 ft. Wave Detail: N 5 ft at 5 seconds, NW 6 ft at 10 seconds and W 3 ft at 13 seconds.

TUE NIGHT
N wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: N 5 ft at 7 seconds, NW 6 ft at 10 seconds and S 2 ft at 16 seconds.

WED
N wind 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: NW 5 ft at 7 seconds, W 4 ft at 11 seconds and S 2 ft at 15 seconds.

WED NIGHT
NW wind 10 to 15 kt. Seas 5 to 7 ft, building to 7 to 9 ft after midnight. Wave Detail: NW 6 ft at 6 seconds, W 4 ft at 12 seconds and S 2 ft at 15 seconds.

THU
NW wind 15 to 20 kt. Seas 8 to 10 ft. Wave Detail: NW 8 ft at 7 seconds, NW 10 ft at 14 seconds and S 2 ft at 14 seconds. A chance of rain in the morning.

THU NIGHT
NW wind 20 to 25 kt. Seas 9 to 10 ft, building to 10 to 13 ft after midnight. Wave Detail: NW 9 ft at 7 seconds, NW 11 ft at 12 seconds and S 2 ft at 15 seconds.

FRI
NW wind 15 to 20 kt, easing to 5 to 10 kt in the afternoon. Seas around 10 ft, subsiding to 8 to 9 ft in the afternoon. Wave Detail: N 6 ft at 9 seconds, NW 9 ft at 11 seconds and S 2 ft at 16 seconds.

FRI NIGHT
NW wind around 5 kt, backing to SE after midnight. Seas 6 to 7 ft. Wave Detail: NW 7 ft at 11 seconds and S 2 ft at 17 seconds. A chance of rain after midnight.

PZZ130-192115
West Entrance U.S. Waters Strait Of Juan De Fuca
115 AM PDT Mon Oct 19 2026

TODAY
E wind around 5 kt this morning, becoming light and variable, then becoming E around 5 kt late. Seas 3 to 4 ft. Wave Detail: W 4 ft at 11 seconds and W 2 ft at 15 seconds.

TONIGHT
NW wind around 5 kt, veering to E around 5 kt after midnight. Seas 3 to 4 ft. Wave Detail: W 4 ft at 11 seconds.

TUE
E wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 2 ft at 4 seconds, W 4 ft at 10 seconds and W 2 ft at 14 seconds.

TUE NIGHT
NE wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at 11 seconds.

WED
E wind around 5 kt, backing to N around 5 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: W 3 ft at 11 seconds.

WED NIGHT
W wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: W 4 ft at 12 seconds and W 4 ft at 15 seconds.

THU
W wind around 5 kt, rising to 10 to 15 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: NW 2 ft at 5 seconds and W 6 ft at 13 seconds.

THU NIGHT
W wind 15 to 20 kt, easing to 10 to 15 kt after midnight. Seas 5 to 8 ft. Wave Detail: W 8 ft at 11 seconds.

FRI
NW wind 5 to 10 kt, becoming W in the afternoon. Seas 4 to 6 ft. Wave Detail: W 6 ft at 11 seconds.

FRI NIGHT
S wind around 5 kt, backing to E after midnight. Seas 3 to 5 ft. Wave Detail: W 5 ft at 11 seconds.

PZZ131-192115
Central U.S. Waters Strait Of Juan De Fuca
115 AM PDT Mon Oct 19 2026

TODAY
SE wind around 5 kt, backing to NE this afternoon. Waves around 2 ft or less.

TONIGHT
NW wind around 5 kt, backing to S after midnight. Waves around 2 ft or less.

TUE
SE wind 5 to 10 kt, becoming E 10 to 15 kt in the afternoon. Waves around 2 ft or less.

TUE NIGHT
E wind 5 to 10 kt, easing to around 5 kt after midnight. Waves around 2 ft or less.

WED
NE wind around 5 kt. Waves around 2 ft or less.

WED NIGHT
W wind 5 to 10 kt, rising to 10 to 15 kt after midnight. Waves around 2 ft or less, then around 3 ft after midnight.

THU
W wind 10 to 15 kt, rising to 15 to 20 kt in the afternoon. Waves 3 to 4 ft.

THU NIGHT
W wind 15 to 20 kt. Waves 3 to 5 ft.

FRI
SW wind 15 to 20 kt, becoming NW 5 to 10 kt in the afternoon. Waves 3 to 5 ft.

FRI NIGHT
S wind 5 to 10 kt, becoming SE after midnight. Waves around 2 ft or less.

PZZ132-192115
East Entrance U.S. Waters Strait Of Juan De Fuca
115 AM PDT Mon Oct 19 2026

TODAY
W wind around 5 kt, veering to NW this afternoon. Waves around 2 ft or less.

TONIGHT
NW wind 5 to 10 kt. Waves around 2 ft or less.

TUE
NW wind 5 to 10 kt. Waves around 2 ft or less.

TUE NIGHT
NW wind around 5 kt. Waves around 2 ft or less.

WED
NW wind around 5 kt. Waves around 2 ft or less.

WED NIGHT
W wind around 5 kt, rising to 5 to 10 kt after midnight. Waves around 2 ft or less.

THU
W wind 5 to 10 kt. Waves around 3 ft.

THU NIGHT
W wind 15 to 20 kt, easing to 10 to 15 kt after midnight. Waves 3 to 5 ft.

FRI
W wind 10 to 15 kt, easing to around 5 kt in the afternoon. Waves 3 to 4 ft.

FRI NIGHT
SW wind around 5 kt, backing to SE after midnight. Waves around 2 ft or less.

PZZ134-192115
Admiralty Inlet
115 AM PDT Mon Oct 19 2026

TODAY
W wind around 5 kt early this morning, becoming light and variable, then becoming NE around 5 kt early this afternoon, backing to NW. Waves around 2 ft or less.

TONIGHT
NW wind 5 to 10 kt. Waves around 2 ft or less.

TUE
NW wind 10 to 15 kt. Waves around 2 ft or less.

TUE NIGHT
NW wind 5 to 10 kt, easing to around 5 kt after midnight. Waves around 2 ft or less.

WED
Light and variable winds, becoming NW around 5 kt in the afternoon. Waves around 2 ft or less.

WED NIGHT
W wind around 5 kt. Waves around 2 ft or less.

THU
SW 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
SW wind around 5 kt, backing to E in the afternoon. Waves around 2 ft or less.

FRI NIGHT
W wind around 5 kt, backing to SE after midnight. Waves around 2 ft or less.

PZZ133-192115
Northern Inland Waters Including The San Juan Islands
115 AM PDT Mon Oct 19 2026

TODAY
NW wind around 5 kt, backing to SW late this morning and early afternoon, veering to NW late. Waves around 2 ft or less.

TONIGHT
NW wind around 5 kt, rising to 5 to 10 kt after midnight. Waves around 2 ft or less.

TUE
NW wind 5 to 10 kt. Waves around 2 ft or less.

TUE NIGHT
NW wind 5 to 10 kt, becoming N after midnight. Waves around 2 ft or less.

WED
Light and variable winds, becoming NW around 5 kt in the afternoon. Waves around 2 ft or less. Patchy fog in the morning.

WED NIGHT
W wind around 5 kt, backing to S after midnight. Waves around 2 ft or less.

THU
SW wind around 5 kt. Waves around 2 ft or less.

THU NIGHT
W wind 5 to 10 kt. Waves around 2 ft or less. A chance of rain after midnight.

FRI
W wind 5 to 10 kt, easing to around 5 kt in the afternoon. Waves around 2 ft or less.

FRI NIGHT
SE wind around 5 kt. Waves around 2 ft or less.

PZZ135-192115
Puget Sound and Hood Canal
115 AM PDT Mon Oct 19 2026

TODAY
Light and variable winds, becoming S around 5 kt late this morning and early afternoon, backing to N late. Waves around 2 ft or less.

TONIGHT
N wind 5 to 10 kt. Waves around 2 ft or less. Patchy dense fog after midnight.

TUE
N wind 5 to 10 kt. Waves around 2 ft or less.

TUE NIGHT
N wind 5 to 10 kt, easing to around 5 kt after midnight. Waves around 2 ft or less.

WED
Light and variable winds, becoming N around 5 kt in the afternoon. Waves around 2 ft or less.

WED NIGHT
N wind around 5 kt in the evening, becoming light and variable. Waves around 2 ft or less.

THU
S wind around 5 kt. Waves around 2 ft or less.

THU NIGHT
NW wind around 5 kt, backing to SW after midnight. Waves around 2 ft or less. A chance of rain in the evening.

FRI
S wind around 5 kt. Waves around 2 ft or less.

FRI NIGHT
NW wind around 5 kt, veering to SE after midnight. Waves around 2 ft or less.

PZZ110-192115
Grays Harbor Bar
115 AM PDT Mon Oct 19 2026

Combined seas 5 to 7 ft. Bar conditions moderate. Maximum ebb currents will occur around 1215 PM Monday, 1215 AM Tuesday, and 115 PM Tuesday.