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National Weather Service Marine Forecast FZUS56 KSEW

FZUS56 KSEW 120947
CWFSEW

Coastal Waters Forecast for Washington
National Weather Service Seattle WA
247 AM PDT Sat Sep 12 2026

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

PZZ100-122300
247 AM PDT Sat Sep 12 2026

.SYNOPSIS FOR THE NORTHERN AND CENTRAL WASHINGTON COASTAL AND INLAND WATERS...A broad 1010 mb low over the coastal waters today will weaken and move south into Oregon tonight. Weak low pressure remaining over the waters Sunday. High pressure will build over the coastal waters Monday and remain over the area through Wednesday.


PZZ150-122300
Coastal Waters From Cape Flattery To James Island Out 10 Nm
247 AM PDT Sat Sep 12 2026

TODAY
E wind around 5 kt, backing to W early this afternoon, veering to NW late. Seas around 4 ft. Wave Detail: W 4 ft at 10 seconds and SW 2 ft at 15 seconds. A slight chance of rain late.

TONIGHT
W wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W 4 ft at 9 seconds and SW 2 ft at 15 seconds. A chance of rain in the evening.

SUN
SW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W 5 ft at 8 seconds and SW 2 ft at 14 seconds.

SUN NIGHT
SW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W 5 ft at 8 seconds and SW 2 ft at 14 seconds.

MON
SW wind around 5 kt. Seas around 4 ft. Wave Detail: W 4 ft at 8 seconds and SW 2 ft at 14 seconds.

MON NIGHT
W wind around 5 kt, veering to N after midnight. Seas 3 to 4 ft. Wave Detail: W 3 ft at 8 seconds.

TUE
N wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at 8 seconds.

TUE NIGHT
NW wind 5 to 10 kt, becoming N after midnight. Seas 3 to 4 ft. Wave Detail: W 4 ft at 8 seconds.

WED
NE wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at 8 seconds.

WED NIGHT
N wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: N 2 ft at 4 seconds and W 4 ft at 8 seconds.


PZZ153-122300
Coastal Waters From James Island To Point Grenville Out 10 Nm
247 AM PDT Sat Sep 12 2026

TODAY
E wind around 5 kt, veering to SW this afternoon. Seas 3 to 4 ft. Wave Detail: W 4 ft at 10 seconds and SW 2 ft at 15 seconds. A chance of rain with a slight chance of tstms late.

TONIGHT
W wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at 10 seconds and SW 2 ft at 15 seconds. Rain likely, mainly in the evening.

SUN
SW wind around 5 kt. Seas 3 to 5 ft. Wave Detail: W 5 ft at 8 seconds and SW 2 ft at 14 seconds.

SUN NIGHT
SW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W 5 ft at 8 seconds and SW 2 ft at 14 seconds.

MON
SW wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at 8 seconds and SW 2 ft at 14 seconds.

MON NIGHT
NW wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at 8 seconds.

TUE
N wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at 8 seconds.

TUE NIGHT
N wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: NW 4 ft at 8 seconds.

WED
NE wind around 5 kt, backing to NW in the afternoon. Seas 3 to 4 ft. Wave Detail: W 4 ft at 8 seconds.

WED NIGHT
N wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: N 2 ft at 4 seconds and NW 4 ft at 8 seconds.

Winds and seas higher in and near tstms.


PZZ156-122300
Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm
247 AM PDT Sat Sep 12 2026

TODAY
SE wind around 5 kt, veering to SW late. Seas 3 to 4 ft. Wave Detail: W 4 ft at 10 seconds and SW 2 ft at 15 seconds. A slight chance of rain early this afternoon. A chance of rain late.

TONIGHT
SW wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at 9 seconds and SW 2 ft at 15 seconds. Rain.

SUN
W wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: S 2 ft at 8 seconds, W 5 ft at 9 seconds and SW 2 ft at 14 seconds. A chance of rain in the morning.

SUN NIGHT
W wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W 5 ft at 8 seconds and SW 2 ft at 14 seconds.

MON
W wind around 5 kt. Seas 3 to 5 ft. Wave Detail: W 4 ft at 8 seconds and SW 2 ft at 14 seconds.

MON NIGHT
NW wind around 5 kt. Seas 3 to 4 ft. Wave Detail: NW 4 ft at 8 seconds.

TUE
N wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: NW 4 ft at 8 seconds.

TUE NIGHT
NW wind 10 to 15 kt, becoming N 5 to 10 kt after midnight. Seas 3 to 5 ft. Wave Detail: NW 5 ft at 8 seconds.

WED
NE wind around 5 kt, backing to N in the afternoon. Seas 3 to 4 ft. Wave Detail: NW 4 ft at 8 seconds.

WED NIGHT
N wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Seas 3 to 5 ft. Wave Detail: N 2 ft at 4 seconds and NW 4 ft at 8 seconds.


PZZ170-122300
Coastal Waters From Cape Flattery To James Island 10 To 60 Nm
247 AM PDT Sat Sep 12 2026

TODAY
NE wind 5 to 10 kt, backing to NW late. Seas 4 to 5 ft. Wave Detail: NW 4 ft at 10 seconds, S 2 ft at 10 seconds and SW 2 ft at 15 seconds.

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

SUN
W wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: W 6 ft at 8 seconds and SW 2 ft at 14 seconds.

SUN NIGHT
W wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Seas 5 to 6 ft. Wave Detail: W 6 ft at 8 seconds and SW 2 ft at 14 seconds.

MON
W wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W 5 ft at 8 seconds and SW 2 ft at 14 seconds.

MON NIGHT
NW wind 5 to 10 kt, veering to N after midnight. Seas 4 to 5 ft. Wave Detail: NW 4 ft at 8 seconds and SW 2 ft at 14 seconds.

TUE
N wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NW 4 ft at 8 seconds.

TUE NIGHT
NW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NW 5 ft at 8 seconds.

WED
N wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NW 5 ft at 8 seconds.

WED NIGHT
N wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: N 2 ft at 4 seconds and NW 5 ft at 8 seconds.


PZZ173-122300
Coastal Waters From James Island To Point Grenville 10 To 60 Nm
247 AM PDT Sat Sep 12 2026

TODAY
E wind 5 to 10 kt, becoming around 5 kt early this afternoon, backing to NW late. Seas 4 to 5 ft. Wave Detail: NW 4 ft at 10 seconds, S 2 ft at 10 seconds and SW 2 ft at 15 seconds. A slight chance of rain late.

TONIGHT
NW wind 5 to 10 kt, becoming W 10 to 15 kt after midnight. Seas 4 to 6 ft. Wave Detail: N 2 ft at 4 seconds, NW 5 ft at 9 seconds and S 2 ft at 9 seconds. A chance of rain.

SUN
W wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: NW 6 ft at 9 seconds and SW 2 ft at 14 seconds.

SUN NIGHT
W wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Seas 5 to 7 ft. Wave Detail: NW 6 ft at 8 seconds and SW 2 ft at 14 seconds.

MON
W wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NW 5 ft at 8 seconds and SW 2 ft at 14 seconds.

MON NIGHT
NW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: N 2 ft at 4 seconds, NW 4 ft at 8 seconds and SW 2 ft at 14 seconds.

TUE
N wind around 10 kt. Seas 4 to 5 ft. Wave Detail: NE 2 ft at 4 seconds and NW 4 ft at 8 seconds.

TUE NIGHT
NW wind 10 to 15 kt, becoming N 5 to 10 kt after midnight. Seas 4 to 6 ft. Wave Detail: NE 2 ft at 4 seconds and NW 5 ft at 8 seconds.

WED
N wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NW 5 ft at 8 seconds.

WED NIGHT
N wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: NE 3 ft at 4 seconds and NW 5 ft at 8 seconds.


PZZ176-122300
Coastal Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm
247 AM PDT Sat Sep 12 2026

TODAY
SE wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NW 4 ft at 10 seconds, S 2 ft at 10 seconds and SW 2 ft at 15 seconds. A chance of rain this morning. A slight chance of rain early this afternoon, then a chance of rain late.

TONIGHT
W wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NW 4 ft at 10 seconds and SW 2 ft at 15 seconds. A chance of rain.

SUN
W wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: NW 6 ft at 9 seconds and SW 2 ft at 14 seconds.

SUN NIGHT
W wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Seas 5 to 7 ft. Wave Detail: NW 6 ft at 8 seconds and SW 2 ft at 14 seconds.

MON
W wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NW 5 ft at 8 seconds and SW 2 ft at 14 seconds.

MON NIGHT
NW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NW 5 ft at 8 seconds and SW 2 ft at 14 seconds.

TUE
N wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: NW 5 ft at 8 seconds.

TUE NIGHT
N wind 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: NE 2 ft at 4 seconds and NW 5 ft at 8 seconds.

WED
N wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NW 5 ft at 8 seconds.

WED NIGHT
N wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: N 2 ft at 4 seconds and NW 5 ft at 8 seconds.


PZZ130-122300
West Entrance U.S. Waters Strait Of Juan De Fuca
247 AM PDT Sat Sep 12 2026

TODAY
E wind around 5 kt, backing to NW late. Seas around 3 ft. Wave Detail: W 3 ft at 10 seconds. A slight chance of rain late.

TONIGHT
W wind 5 to 10 kt. Seas around 3 ft. Wave Detail: W 3 ft at 9 seconds. A chance of rain in the evening.

SUN
SW wind 5 to 10 kt. Seas around 3 ft. Wave Detail: W 3 ft at 9 seconds.

SUN NIGHT
SW wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Seas 3 to 4 ft. Wave Detail: W 4 ft at 8 seconds.

MON
SW wind around 5 kt. Seas around 3 ft. Wave Detail: W 3 ft at 8 seconds.

MON NIGHT
NW wind around 5 kt. Seas around 3 ft. Wave Detail: W 3 ft at 8 seconds.

TUE
NE wind around 5 kt. Seas around 3 ft. Wave Detail: W 3 ft at 8 seconds.

TUE NIGHT
NW wind around 5 kt, veering to NE after midnight. Seas around 3 ft. Wave Detail: W 3 ft at 8 seconds.

WED
E wind 5 to 10 kt, easing to around 5 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: W 3 ft at 8 seconds.

WED NIGHT
N wind around 5 kt, veering to E after midnight. Seas around 3 ft. Wave Detail: W 3 ft at 7 seconds.


PZZ131-122300
Central U.S. Waters Strait Of Juan De Fuca
247 AM PDT Sat Sep 12 2026

SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE TONIGHT

TODAY
W wind to 10 kt. Waves around 2 ft or less. A chance of rain late.

TONIGHT
W wind 15 to 25 kt. Waves 3 to 4 ft. A chance of rain in the evening.

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

SUN NIGHT
W wind 15 to 20 kt. Waves 2 to 3 ft.

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

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

TUE
Variable wind less than 10 kt. Waves around 2 ft or less.

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

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

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


PZZ132-122300
East Entrance U.S. Waters Strait Of Juan De Fuca
247 AM PDT Sat Sep 12 2026

SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE TONIGHT

TODAY
W wind 5 to 10 kt. Waves around 2 ft or less. A chance of rain late.

TONIGHT
W wind 15 to 25 kt. Waves 2 to 4 ft.

SUN
SW wind 10 to 15 kt, becoming SE 5 to 10 kt in the afternoon. Waves around 3 ft in the morning, then around 2 ft or less.

SUN NIGHT
SW wind 10 to 15 kt. Waves around 2 ft or less, then around 3 ft after midnight.

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
NW wind 5 to 10 kt. 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
NW wind around 5 kt in the evening, becoming light and variable. Waves around 2 ft or less.


PZZ134-122300
Admiralty Inlet
247 AM PDT Sat Sep 12 2026

TODAY
NW wind 5 to 10 kt. Waves around 2 ft or less. A chance of rain late.

TONIGHT
NW wind 10 to 20 kt, becoming S less than 10 kt late. Waves 1 to 3 ft. A chance of rain.

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

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

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

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

TUE
NW wind around 5 kt, rising to 10 to 15 kt in the afternoon. Waves around 2 ft or less.

TUE NIGHT
NW wind 10 to 15 kt, easing to around 5 kt after midnight. 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. Waves around 2 ft or less.


PZZ133-122300
Northern Inland Waters Including The San Juan Islands
247 AM PDT Sat Sep 12 2026

TODAY
NW wind around 5 kt, rising to 5 to 10 kt this afternoon. Waves around 2 ft or less.

TONIGHT
SW wind 5 to 10 kt, backing to S after midnight. Waves around 2 ft or less. A chance of rain after midnight.

SUN
S wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Waves around 2 ft or less.

SUN NIGHT
S wind 15 to 20 kt, easing to 10 to 15 kt after midnight. Waves around 2 ft or less.

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

MON NIGHT
SW wind around 5 kt, veering to N after midnight. Waves around 2 ft or less.

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

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


PZZ135-122300
Puget Sound and Hood Canal
247 AM PDT Sat Sep 12 2026

TODAY
N wind 5 to 10 kt backing to SW late. Waves 1 ft or less. A chance of rain late.

TONIGHT
SW wind 5 to 10 kt. Waves 1 ft or less. Rain.

SUN
S wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Waves around 2 ft or less. A chance of rain in the morning.

SUN NIGHT
S wind 10 to 15 kt, rising to 15 to 20 kt after midnight. Waves 1 to 3 ft..

MON
S wind 5 to 10 kt. Waves 1 ft or less.

MON NIGHT
SW wind around 5 kt, veering to N after midnight. Waves 1 ft or less.

TUE
N wind 5 to 10 kt. Waves 1 ft or less.

TUE NIGHT
N wind 5 to 10 kt. Waves 1 ft or less.

WED
N wind 5 to 10 kt. Waves 1 ft or less.

WED NIGHT
N wind 5 to 10 kt. Waves 1 ft or less.


PZZ110-122300
Grays Harbor Bar
247 AM PDT Sat Sep 12 2026

Combined seas 3 to 5 ft. Bar conditions light. Maximum ebb currents will occur around 545 AM and 615 PM today and 630 AM Sunday. The evening ebb tonight will be strong.