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National Weather Service Marine Forecast FZUS56 KSEW

FZUS56 KSEW 042038
CWFSEW

Coastal Waters Forecast for Washington
National Weather Service Seattle WA
138 PM PDT Fri Sep 4 2026

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

PZZ100-050945
138 PM PDT Fri Sep 4 2026

.SYNOPSIS FOR THE NORTHERN AND CENTRAL WASHINGTON COASTAL AND INLAND WATERS...Broad low pressure will remain over the area through the weekend. Weak high pressure then returns for the first half of next week, before another disturbance approaches later next week.

PZZ150-050945
Coastal Waters From Cape Flattery To James Island Out 10 Nm
138 PM PDT Fri Sep 4 2026

TONIGHT
N wind around 5 kt. Seas 4 to 5 ft. Wave Detail: S 2 ft at 6 seconds, W 4 ft at 9 seconds and SW 2 ft at 18 seconds.

SAT
E wind around 5 kt, backing to NW around 5 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: W 4 ft at 9 seconds and SW 2 ft at 18 seconds.

SAT NIGHT
NW wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at 9 seconds and SW 2 ft at 17 seconds.

SUN
N wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NW 3 ft at 4 seconds, W 4 ft at 10 seconds and SW 2 ft at 16 seconds.

SUN NIGHT
NW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NW 4 ft at 6 seconds, W 3 ft at 11 seconds and SW 2 ft at 15 seconds.

MON
W wind around 5 kt. Seas 4 to 5 ft. Wave Detail: W 3 ft at 6 seconds, W 3 ft at 11 seconds and SW 2 ft at 15 seconds.

MON NIGHT
W wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W 2 ft at 5 seconds, W 3 ft at 11 seconds and SW 2 ft at 14 seconds.

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

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

WED
N wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W 4 ft at 6 seconds, W 5 ft at 9 seconds and SW 2 ft at 13 seconds.

WED NIGHT
NW wind 5 to 10 kt. Seas around 4 ft.

PZZ153-050945
Coastal Waters From James Island To Point Grenville Out 10 Nm
138 PM PDT Fri Sep 4 2026

TONIGHT
N wind around 5 kt. Seas 4 to 5 ft. Wave Detail: S 2 ft at 6 seconds, W 4 ft at 9 seconds and SW 2 ft at 18 seconds.

SAT
NW wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at 9 seconds and SW 2 ft at 18 seconds.

SAT NIGHT
N wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NW 2 ft at 4 seconds, W 4 ft at 9 seconds and SW 2 ft at 17 seconds.

SUN
N wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NW 3 ft at 5 seconds, NW 4 ft at 9 seconds and SW 2 ft at 16 seconds.

SUN NIGHT
NW wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Seas 4 to 5 ft. Wave Detail: NW 4 ft at 8 seconds and SW 2 ft at 15 seconds.

MON
NW wind around 5 kt, backing to W around 5 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: NW 4 ft at 7 seconds, W 2 ft at 12 seconds and SW 2 ft at 15 seconds.

MON NIGHT
W wind around 5 kt, veering to N after midnight. Seas 3 to 4 ft. Wave Detail: NW 3 ft at 7 seconds, W 3 ft at 11 seconds and SW 2 ft at 14 seconds.

TUE
N wind around 5 kt, backing to NW in the afternoon. Seas 3 to 4 ft. Wave Detail: NW 3 ft at 5 seconds, W 3 ft at 10 seconds and SW 2 ft at 14 seconds.

TUE NIGHT
N wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: NW 4 ft at 6 seconds, W 2 ft at 10 seconds and SW 2 ft at 14 seconds.

WED
NE wind around 5 kt, backing to NW in the afternoon. Seas 4 to 5 ft. Wave Detail: W 4 ft at 6 seconds, W 5 ft at 10 seconds and SW 2 ft at 13 seconds.

WED NIGHT
NW wind 5 to 10 kt. Seas around 4 ft.

PZZ156-050945
Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm
138 PM PDT Fri Sep 4 2026

TONIGHT
N wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: S 2 ft at 6 seconds, W 4 ft at 9 seconds and SW 2 ft at 18 seconds.

SAT
NE wind around 5 kt, backing to NW in the afternoon. Seas 3 to 5 ft. Wave Detail: W 4 ft at 9 seconds and SW 2 ft at 18 seconds.

SAT NIGHT
N wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: N 2 ft at 5 seconds, NW 4 ft at 9 seconds and SW 2 ft at 17 seconds.

SUN
N wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NW 3 ft at 6 seconds, NW 4 ft at 9 seconds and SW 2 ft at 16 seconds.

SUN NIGHT
NW wind 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: NW 5 ft at 8 seconds, NW 4 ft at 12 seconds and SW 2 ft at 15 seconds.

MON
W wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: NW 4 ft at 7 seconds, W 2 ft at 12 seconds and SW 2 ft at 15 seconds.

MON NIGHT
NW wind around 5 kt. Seas 3 to 5 ft. Wave Detail: NW 3 ft at 7 seconds, W 3 ft at 11 seconds and SW 2 ft at 14 seconds.

TUE
N wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NW 3 ft at 6 seconds, NW 3 ft at 10 seconds and SW 2 ft at 14 seconds.

TUE NIGHT
NW wind 10 to 15 kt, becoming N 5 to 10 kt after midnight. Seas 4 to 6 ft. Wave Detail: NW 5 ft at 6 seconds, W 2 ft at 10 seconds and SW 2 ft at 14 seconds.

WED
NE wind around 5 kt, becoming NW 10 to 15 kt in the afternoon. Seas 4 to 5 ft. Wave Detail: NW 4 ft at 6 seconds and W 5 ft at 10 seconds.

WED NIGHT
NW wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Seas around 4 ft.

PZZ170-050945
Coastal Waters From Cape Flattery To James Island 10 To 60 Nm
138 PM PDT Fri Sep 4 2026

TONIGHT
N wind around 5 kt. Seas around 5 ft. Wave Detail: S 2 ft at 6 seconds, W 4 ft at 9 seconds and SW 2 ft at 18 seconds.

SAT
NW wind around 5 kt. Seas 4 to 5 ft. Wave Detail: S 2 ft at 6 seconds, W 4 ft at 9 seconds and S 2 ft at 12 seconds.

SAT NIGHT
NW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W 4 ft at 9 seconds, S 2 ft at 12 seconds and SW 2 ft at 17 seconds.

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

SUN NIGHT
NW wind 5 to 10 kt. Seas 5 to 7 ft. Wave Detail: N 5 ft at 5 seconds, NW 4 ft at 10 seconds and S 3 ft at 15 seconds.

MON
W wind 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: NW 4 ft at 7 seconds, W 4 ft at 11 seconds and S 3 ft at 15 seconds.

MON NIGHT
NW wind around 5 kt. Seas 4 to 5 ft. Wave Detail: NW 2 ft at 5 seconds, NW 4 ft at 11 seconds and S 3 ft at 15 seconds.

TUE
N wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NW 3 ft at 5 seconds, W 3 ft at 10 seconds and S 3 ft at 14 seconds.

TUE NIGHT
NW wind 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: NW 4 ft at 5 seconds, W 2 ft at 11 seconds and S 2 ft at 14 seconds.

WED
N wind 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: NW 4 ft at 6 seconds, NW 6 ft at 9 seconds and S 2 ft at 14 seconds.

WED NIGHT
NW wind 5 to 10 kt. Seas 4 to 5 ft.

PZZ173-050945
Coastal Waters From James Island To Point Grenville 10 To 60 Nm
138 PM PDT Fri Sep 4 2026

TONIGHT
N wind around 5 kt. Seas around 5 ft. Wave Detail: S 2 ft at 6 seconds, NW 5 ft at 9 seconds and SW 2 ft at 18 seconds.

SAT
N wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NW 4 ft at 9 seconds, S 2 ft at 12 seconds and SW 2 ft at 18 seconds.

SAT NIGHT
N wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: N 3 ft at 4 seconds, NW 4 ft at 9 seconds and S 2 ft at 12 seconds.

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

SUN NIGHT
NW wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Seas 5 to 7 ft. Wave Detail: N 5 ft at 6 seconds, NW 4 ft at 10 seconds and S 3 ft at 15 seconds.

MON
W wind 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: NW 4 ft at 7 seconds, W 4 ft at 11 seconds and S 3 ft at 15 seconds.

MON NIGHT
NW wind around 5 kt. Seas 4 to 5 ft. Wave Detail: NW 3 ft at 6 seconds, NW 4 ft at 11 seconds and S 3 ft at 15 seconds.

TUE
N wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NW 4 ft at 5 seconds, NW 3 ft at 10 seconds and S 3 ft at 14 seconds.

TUE NIGHT
N wind 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: NW 5 ft at 5 seconds, W 2 ft at 11 seconds and S 2 ft at 14 seconds.

WED
N wind 5 to 10 kt, becoming NW 10 to 15 kt in the afternoon. Seas 5 to 6 ft. Wave Detail: NW 5 ft at 6 seconds, NW 5 ft at 10 seconds and S 2 ft at 14 seconds.

WED NIGHT
NW wind 10 to 15 kt. Seas 4 to 5 ft.

PZZ176-050945
Coastal Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm
138 PM PDT Fri Sep 4 2026

TONIGHT
N wind 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: S 2 ft at 6 seconds, NW 5 ft at 9 seconds and SW 2 ft at 18 seconds.

SAT
N wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NW 5 ft at 9 seconds, S 2 ft at 12 seconds and SW 2 ft at 17 seconds.

SAT NIGHT
N wind around 10 kt. Seas 4 to 6 ft. Wave Detail: N 3 ft at 5 seconds, NW 4 ft at 9 seconds and S 2 ft at 12 seconds.

SUN
N wind around 10 kt. Seas 5 to 6 ft. Wave Detail: N 4 ft at 7 seconds, NW 4 ft at 9 seconds and S 3 ft at 16 seconds.

SUN NIGHT
NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: N 6 ft at 7 seconds, NW 4 ft at 12 seconds and S 3 ft at 12 seconds.

MON
W wind 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: NW 4 ft at 7 seconds, W 2 ft at 12 seconds and S 3 ft at 15 seconds.

MON NIGHT
NW wind around 5 kt. Seas 4 to 5 ft. Wave Detail: NW 4 ft at 7 seconds, NW 4 ft at 11 seconds and S 3 ft at 14 seconds.

TUE
N wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NW 4 ft at 5 seconds, NW 4 ft at 10 seconds and S 2 ft at 14 seconds.

TUE NIGHT
N wind 10 to 15 kt. Seas 4 to 6 ft, building to 6 to 7 ft after midnight. Wave Detail: NW 6 ft at 6 seconds, W 3 ft at 11 seconds and S 2 ft at 14 seconds.

WED
N wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: NW 6 ft at 7 seconds, W 5 ft at 10 seconds and S 2 ft at 14 seconds.

WED NIGHT
NW wind 10 to 15 kt. Seas around 5 ft.

PZZ130-050945
West Entrance U.S. Waters Strait Of Juan De Fuca
138 PM PDT Fri Sep 4 2026

TONIGHT
NW wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at 9 seconds.

SAT
NE wind around 5 kt. Seas around 3 ft. Wave Detail: W 3 ft at 9 seconds.

SAT NIGHT
NW wind around 5 kt. Seas around 3 ft. Wave Detail: W 3 ft at 9 seconds.

SUN
N wind around 5 kt. Seas around 3 ft. Wave Detail: W 3 ft at 10 seconds.

SUN NIGHT
W wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at 6 seconds and W 2 ft at 10 seconds.

MON
W wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at 6 seconds and W 2 ft at 11 seconds.

MON NIGHT
W wind 5 to 10 kt. Seas around 3 ft. Wave Detail: W 2 ft at 5 seconds and W 2 ft at 11 seconds.

TUE
NW wind around 5 kt. Seas around 3 ft. Wave Detail: W 2 ft at 5 seconds and W 2 ft at 10 seconds.

TUE NIGHT
NW wind around 5 kt, veering to NE after midnight. Seas around 3 ft. Wave Detail: W 2 ft at 5 seconds and W 2 ft at 10 seconds.

WED
E wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W 2 ft at 6 seconds and W 4 ft at 9 seconds.

WED NIGHT
W wind around 5 kt. Seas around 3 ft.

PZZ131-050945
Central U.S. Waters Strait Of Juan De Fuca
138 PM PDT Fri Sep 4 2026

TONIGHT
W wind around 5 kt. Waves around 2 ft or less.

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

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

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

SUN NIGHT
W wind 10 to 15 kt, rising to 15 to 20 kt after midnight. Waves around 3 ft.

MON
W wind 15 to 20 kt. Waves 3 to 4 ft.

MON NIGHT
W wind 15 to 20 kt, easing to 10 to 15 kt after midnight. Waves 3 to 4 ft.

TUE
W wind 5 to 10 kt, veering to NE in the afternoon. Waves around 2 ft or less.

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

WED
E wind 5 to 10 kt. Waves around 2 ft or less.

WED NIGHT
W wind 5 to 10 kt. Waves around 2 ft or less.

PZZ132-050945
East Entrance U.S. Waters Strait Of Juan De Fuca
138 PM PDT Fri Sep 4 2026

TONIGHT
W wind around 5 kt. Waves around 2 ft or less.

SAT
W wind around 5 kt, veering to NW around 5 kt in the afternoon. Waves around 2 ft or less.

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

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

SUN 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.

MON
SW wind 5 to 10 kt. Waves around 3 ft in the morning, then around 2 ft or less.

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

TUE
W wind 5 to 10 kt, veering to NW in the afternoon. Waves around 2 ft or less.

TUE NIGHT
W 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. Waves around 2 ft or less.

PZZ134-050945
Admiralty Inlet
138 PM PDT Fri Sep 4 2026

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

SAT
NW wind around 5 kt, rising to 5 to 10 kt in the afternoon. Waves around 2 ft or less.

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

SUN
NW wind around 5 kt, rising to 5 to 10 kt in the afternoon. Waves around 2 ft or less.

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

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

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

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

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

PZZ133-050945
Northern Inland Waters Including The San Juan Islands
138 PM PDT Fri Sep 4 2026

TONIGHT
NW wind around 5 kt. Waves around 2 ft or less. A slight chance of rain late.

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

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

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

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

MON
S wind 5 to 10 kt. Waves around 2 ft or less.

MON NIGHT
S wind 5 to 10 kt. Waves around 2 ft or less.

TUE
S wind around 5 kt, veering to NW in the afternoon. 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, backing to S after midnight. Waves around 2 ft or less.

PZZ135-050945
Puget Sound and Hood Canal
138 PM PDT Fri Sep 4 2026

TONIGHT
N wind around 5 kt. Waves around 2 ft or less.

SAT
N wind around 5 kt, rising to 5 to 10 kt in the afternoon. Waves around 2 ft or less.

SAT NIGHT
N wind around 5 kt. Waves around 2 ft or less.

SUN
N wind around 5 kt, rising to 5 to 10 kt in the afternoon. Waves around 2 ft or less.

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

MON
S wind 5 to 10 kt. Waves around 2 ft or less.

MON NIGHT
W wind 5 to 10 kt, becoming SW after midnight. Waves around 2 ft or less.

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

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

WED
N wind around 5 kt, rising to 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.

PZZ110-050945
Grays Harbor Bar
138 PM PDT Fri Sep 4 2026

Combined seas 3 to 5 ft. Bar conditions light. Maximum ebb currents will occur around 1115 PM Friday, noon Saturday, and 1230 AM Sunday