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National Weather Service Marine Forecast FZUS56 KSEW

FZUS56 KSEW 210831
CWFSEW

Coastal Waters Forecast for Washington
National Weather Service Seattle WA
131 AM PDT Mon Sep 21 2026

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

PZZ100-212145
131 AM PDT Mon Sep 21 2026

.SYNOPSIS FOR THE NORTHERN AND CENTRAL WASHINGTON COASTAL AND INLAND WATERS...High pressure will ease today. A weak front passes north of the waters Monday night into Tuesday, with another weak system on Wednesday. A more organized system is expected Thursday into Friday. This will allow for onshore flow to persist throughout the week.

PZZ150-212145
Coastal Waters From Cape Flattery To James Island Out 10 Nm
131 AM PDT Mon Sep 21 2026

TODAY
W wind around 5 kt. Seas 4 to 5 ft, building to 5 to 7 ft this afternoon. Wave Detail: W 7 ft at 13 seconds and SW 2 ft at 18 seconds.

TONIGHT
NW wind around 5 kt. Seas 6 to 7 ft. Wave Detail: NW 2 ft at 4 seconds, W 7 ft at 13 seconds and SW 2 ft at 18 seconds.

TUE
W wind around 5 kt. Seas 5 to 7 ft. Wave Detail: W 6 ft at 12 seconds and SW 2 ft at 17 seconds.

TUE NIGHT
SW wind 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: W 5 ft at 11 seconds and SW 2 ft at 17 seconds. Rain likely.

WED
SW wind around 5 kt, veering to W in the afternoon. Seas 5 to 7 ft. Wave Detail: W 7 ft at 12 seconds and SW 2 ft at 16 seconds.

WED NIGHT
N wind around 5 kt. Seas 5 to 7 ft. Wave Detail: W 6 ft at 11 seconds and SW 2 ft at 16 seconds.

THU
N wind 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: W 5 ft at 10 seconds and SW 2 ft at 15 seconds. A chance of rain.

THU NIGHT
NW wind 5 to 10 kt, rising to 10 to 15 kt after midnight. Seas 4 to 6 ft. Wave Detail: NW 3 ft at 5 seconds, W 6 ft at 10 seconds and SW 2 ft at 15 seconds. Rain likely, mainly in the evening.

FRI
NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: N 2 ft at 5 seconds, W 6 ft at 10 seconds and SW 2 ft at 14 seconds. A chance of rain in the morning.

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

PZZ153-212145
Coastal Waters From James Island To Point Grenville Out 10 Nm
131 AM PDT Mon Sep 21 2026

TODAY
N wind around 5 kt, backing to NW around 5 kt this afternoon. Seas 4 to 5 ft, building to 5 to 7 ft this afternoon. Wave Detail: NW 2 ft at 4 seconds, W 6 ft at 13 seconds and SW 2 ft at 18 seconds.

TONIGHT
NW wind 5 to 10 kt. Seas 6 to 8 ft. Wave Detail: N 2 ft at 5 seconds, W 7 ft at 13 seconds and SW 2 ft at 18 seconds.

TUE
N wind around 5 kt, backing to W in the afternoon. Seas 5 to 7 ft. Wave Detail: NW 2 ft at 5 seconds, W 6 ft at 12 seconds and SW 2 ft at 17 seconds.

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

WED
SE wind around 5 kt, veering to NW in the afternoon. Seas 5 to 7 ft. Wave Detail: W 6 ft at 12 seconds and SW 2 ft at 16 seconds.

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

THU
N wind 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: NE 2 ft at 4 seconds, W 5 ft at 10 seconds and SW 2 ft at 15 seconds. A chance of rain.

THU NIGHT
NW wind 5 to 10 kt, rising to 10 to 15 kt after midnight. Seas 4 to 6 ft. Wave Detail: NW 4 ft at 5 seconds, W 6 ft at 10 seconds and SW 2 ft at 15 seconds. Rain likely.

FRI
NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: NW 3 ft at 5 seconds and W 7 ft at 8 seconds. A chance of rain.

FRI NIGHT
NW wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Seas 5 to 6 ft. Wave Detail: W 6 ft at 9 seconds.

PZZ156-212145
Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm
131 AM PDT Mon Sep 21 2026

TODAY
NW wind 5 to 10 kt. Seas 4 to 5 ft, building to 5 to 7 ft this afternoon. Wave Detail: N 2 ft at 5 seconds, NW 6 ft at 13 seconds and SW 3 ft at 18 seconds.

TONIGHT
NW wind around 10 kt. Seas 6 to 9 ft. Wave Detail: N 2 ft at 5 seconds, W 8 ft at 13 seconds and SW 2 ft at 18 seconds.

TUE
NW wind 5 to 10 kt, backing to W in the afternoon. Seas 6 to 8 ft. Wave Detail: W 7 ft at 12 seconds and SW 2 ft at 17 seconds.

TUE NIGHT
W wind 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: W 6 ft at 11 seconds and SW 2 ft at 17 seconds.

WED
NW wind 5 to 10 kt. Seas 5 to 7 ft. Wave Detail: W 6 ft at 12 seconds and SW 2 ft at 16 seconds.

WED NIGHT
NW wind 10 to 15 kt, becoming N 5 to 10 kt after midnight. Seas 6 to 8 ft. Wave Detail: NW 2 ft at 5 seconds, W 7 ft at 11 seconds and SW 2 ft at 16 seconds.

THU
N wind 5 to 10 kt. Seas 5 to 7 ft. Wave Detail: N 2 ft at 5 seconds, W 6 ft at 10 seconds and SW 2 ft at 15 seconds. A chance of rain.

THU NIGHT
NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: NW 4 ft at 6 seconds, NW 7 ft at 10 seconds and SW 2 ft at 15 seconds. Rain likely.

FRI
NW wind 10 to 15 kt. Seas 5 to 8 ft. Wave Detail: NW 7 ft at 10 seconds. A chance of rain in the morning.

FRI NIGHT
NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: W 6 ft at 9 seconds.

PZZ170-212145
Coastal Waters From Cape Flattery To James Island 10 To 60 Nm
131 AM PDT Mon Sep 21 2026

TODAY
W wind 5 to 10 kt. Seas 5 to 8 ft. Wave Detail: N 2 ft at 4 seconds, W 8 ft at 14 seconds and SW 3 ft at 18 seconds.

TONIGHT
NW wind 5 to 10 kt. Seas 7 to 8 ft. Wave Detail: NW 2 ft at 5 seconds, W 8 ft at 13 seconds and SW 2 ft at 18 seconds.

TUE
W wind 5 to 10 kt. Seas 6 to 7 ft. Wave Detail: W 7 ft at 12 seconds and SW 2 ft at 17 seconds.

TUE NIGHT
SW wind 5 to 10 kt. Seas around 6 ft. Wave Detail: W 6 ft at 11 seconds and SW 2 ft at 17 seconds. Rain likely.

WED
W wind 5 to 10 kt. Seas 6 to 8 ft. Wave Detail: W 8 ft at 12 seconds and SW 2 ft at 16 seconds.

WED NIGHT
NW wind 5 to 10 kt. Seas 6 to 7 ft. Wave Detail: W 7 ft at 11 seconds and SW 2 ft at 16 seconds.

THU
N wind 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: NE 2 ft at 4 seconds, W 6 ft at 10 seconds and SW 2 ft at 15 seconds. A chance of rain.

THU NIGHT
NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: NW 4 ft at 6 seconds, W 6 ft at 10 seconds and SW 2 ft at 15 seconds. A chance of rain.

FRI
NW wind 15 to 20 kt. Seas 6 to 8 ft. Wave Detail: N 4 ft at 6 seconds, NW 7 ft at 10 seconds and SW 2 ft at 14 seconds. A chance of rain in the morning.

FRI NIGHT
NW wind 15 to 20 kt, easing to 10 to 15 kt after midnight. Seas 6 to 7 ft. Wave Detail: N 2 ft at 5 seconds, W 6 ft at 10 seconds and SW 2 ft at 14 seconds.

PZZ173-212145
Coastal Waters From James Island To Point Grenville 10 To 60 Nm
131 AM PDT Mon Sep 21 2026

TODAY
W wind 5 to 10 kt. Seas 4 to 6 ft, building to 6 to 8 ft this afternoon. Wave Detail: NW 3 ft at 5 seconds, W 8 ft at 14 seconds and SW 2 ft at 18 seconds.

TONIGHT
NW wind 5 to 10 kt. Seas 7 to 9 ft. Wave Detail: NW 4 ft at 5 seconds, W 8 ft at 13 seconds and SW 2 ft at 18 seconds.

TUE
NW wind 5 to 10 kt, backing to W in the afternoon. Seas 6 to 9 ft. Wave Detail: N 3 ft at 5 seconds, W 7 ft at 12 seconds and SW 2 ft at 17 seconds.

TUE NIGHT
SW wind 5 to 10 kt. Seas 6 to 7 ft. Wave Detail: N 2 ft at 4 seconds, W 6 ft at 11 seconds and SW 2 ft at 17 seconds. A chance of rain.

WED
NW wind 5 to 10 kt. Seas 6 to 8 ft. Wave Detail: N 2 ft at 4 seconds, W 8 ft at 12 seconds and SW 2 ft at 16 seconds.

WED NIGHT
N wind 5 to 10 kt. Seas 6 to 8 ft. Wave Detail: N 3 ft at 4 seconds, W 7 ft at 11 seconds and SW 2 ft at 16 seconds.

THU
N wind 10 to 15 kt. Seas 6 to 7 ft. Wave Detail: NE 5 ft at 5 seconds, W 6 ft at 10 seconds and SW 2 ft at 15 seconds. A chance of rain.

THU NIGHT
NW wind 10 to 15 kt. Seas 6 to 7 ft. Wave Detail: N 5 ft at 5 seconds, W 6 ft at 10 seconds and SW 2 ft at 15 seconds. Rain likely, mainly in the evening.

FRI
NW wind 15 to 20 kt. Seas 7 to 9 ft. Wave Detail: N 5 ft at 6 seconds, SW 2 ft at 8 seconds and NW 8 ft at 10 seconds. A chance of rain in the morning.

FRI NIGHT
NW wind 15 to 20 kt, easing to 10 to 15 kt after midnight. Seas 6 to 7 ft. Wave Detail: N 2 ft at 5 seconds, SW 2 ft at 8 seconds and NW 7 ft at 9 seconds.

PZZ176-212145
Coastal Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm
131 AM PDT Mon Sep 21 2026

TODAY
NW wind 5 to 10 kt. Seas 4 to 6 ft, building to 6 to 9 ft this afternoon. Wave Detail: N 4 ft at 5 seconds, W 7 ft at 14 seconds and SW 2 ft at 18 seconds.

TONIGHT
NW wind around 10 kt. Seas 7 to 9 ft. Wave Detail: N 5 ft at 6 seconds, W 8 ft at 13 seconds and SW 2 ft at 18 seconds.

TUE
W wind 5 to 10 kt. Seas 6 to 8 ft. Wave Detail: N 4 ft at 5 seconds, W 7 ft at 12 seconds and SW 2 ft at 17 seconds.

TUE NIGHT
W wind 5 to 10 kt. Seas 6 to 7 ft. Wave Detail: N 2 ft at 5 seconds, W 6 ft at 11 seconds and SW 2 ft at 17 seconds.

WED
NW wind 5 to 10 kt. Seas 6 to 8 ft. Wave Detail: N 2 ft at 5 seconds, W 8 ft at 12 seconds and SW 2 ft at 16 seconds.

WED NIGHT
N wind 5 to 10 kt, rising to 10 to 15 kt after midnight. Seas 7 to 8 ft. Wave Detail: N 3 ft at 5 seconds, W 7 ft at 11 seconds and SW 2 ft at 16 seconds.

THU
N wind 10 to 15 kt. Seas 6 to 7 ft. Wave Detail: N 4 ft at 5 seconds, NW 6 ft at 10 seconds and SW 2 ft at 15 seconds. A chance of rain.

THU NIGHT
N wind 10 to 15 kt, becoming NW 15 to 20 kt after midnight. Seas 6 to 8 ft. Wave Detail: NW 6 ft at 7 seconds, NW 7 ft at 10 seconds and SW 2 ft at 15 seconds. Rain likely, mainly in the evening.

FRI
NW wind 15 to 20 kt. Seas 7 to 9 ft. Wave Detail: NW 4 ft at 6 seconds, SW 2 ft at 8 seconds and NW 8 ft at 10 seconds. A chance of rain in the morning.

FRI NIGHT
NW wind 15 to 20 kt, easing to 10 to 15 kt after midnight. Seas 7 to 8 ft. Wave Detail: NW 2 ft at 4 seconds, SW 2 ft at 8 seconds and NW 7 ft at 9 seconds.

PZZ130-212145
West Entrance U.S. Waters Strait Of Juan De Fuca
131 AM PDT Mon Sep 21 2026

TODAY
W wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: W 5 ft at 13 seconds.

TONIGHT
W wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: W 5 ft at 12 seconds.

TUE
W wind around 5 kt, rising to 5 to 10 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: W 5 ft at 12 seconds.

TUE NIGHT
W wind 5 to 10 kt, backing to S after midnight. Seas 3 to 5 ft. Wave Detail: W 5 ft at 11 seconds. A chance of rain.

WED
S wind around 5 kt, veering to W around 5 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: W 5 ft at 12 seconds.

WED NIGHT
W wind 5 to 10 kt, veering to N after midnight. Seas 3 to 5 ft. Wave Detail: W 5 ft at 11 seconds.

THU
E wind around 5 kt, backing to N around 5 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: W 4 ft at 10 seconds. A chance of rain.

THU NIGHT
W wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at 10 seconds. Rain likely, mainly in the evening.

FRI
W wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: W 4 ft at 10 seconds. A chance of rain in the morning.

FRI NIGHT
W wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: W 4 ft at 9 seconds.

PZZ131-212145
Central U.S. Waters Strait Of Juan De Fuca
131 AM PDT Mon Sep 21 2026

SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH LATE TONIGHT

TODAY
W wind 10 to 15 kt, rising to 15 to 20 kt with gusts to 25 kt this afternoon. Waves 3 to 5 ft.

TONIGHT
W wind 15 to 20 kt with gusts to 25 kt. Waves 3 to 5 ft.

TUE
W wind 10 to 15 kt. Waves 3 to 4 ft.

TUE NIGHT
W wind 10 to 15 kt, becoming SW 5 to 10 kt after midnight. Waves 3 to 4 ft.

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

WED NIGHT
W wind 5 to 10 kt. Waves around 3 ft in the evening, then around 2 ft or less.

THU
SE wind 5 to 10 kt, backing to E in the afternoon. Waves around 2 ft or less. A chance of rain.

THU NIGHT
W wind 5 to 10 kt, rising to 10 to 15 kt after midnight. Waves around 2 ft or less. Rain likely, mainly in the evening.

FRI
W wind 10 to 15 kt. Waves around 3 ft. A chance of rain in the morning.

FRI NIGHT
W wind 10 to 15 kt, becoming SW 5 to 10 kt after midnight. Waves around 3 ft in the evening, then around 2 ft or less.

PZZ132-212145
East Entrance U.S. Waters Strait Of Juan De Fuca
131 AM PDT Mon Sep 21 2026

SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH LATE TONIGHT

TODAY
SW wind 5 to 10 kt, rising to 10 to 20 kt with gusts to 25 kt late. Waves around 2 ft or less, then around 3 ft this afternoon.

TONIGHT
W wind 10 to 20 kt with gusts to 25 kt. Waves 3 to 4 ft.

TUE
W wind 10 to 15 kt, becoming SW 5 to 10 kt in the afternoon. Waves 3 to 4 ft in the morning, then around 2 ft or less.

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

WED
SW 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.

THU
NW wind 5 to 10 kt. Waves around 2 ft or less. A chance of rain in the afternoon.

THU NIGHT
W wind around 5 kt, rising to 10 to 15 kt after midnight. Waves around 2 ft or less. Rain likely.

FRI
W wind 10 to 15 kt, easing to 5 to 10 kt in the afternoon. Waves around 3 ft. A chance of rain in the morning.

FRI NIGHT
W wind 5 to 10 kt. Waves around 3 ft in the evening, then around 2 ft or less.

PZZ134-212145
Admiralty Inlet
131 AM PDT Mon Sep 21 2026

TODAY
S wind around 5 kt, veering to W late. Waves around 2 ft or less.

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

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

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

WED
S wind around 5 kt, veering to SW around 5 kt in the afternoon. Waves around 2 ft or less.

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

THU
NW wind 5 to 10 kt. Waves around 2 ft or less. A chance of rain in the afternoon.

THU NIGHT
W wind 5 to 10 kt. Waves around 2 ft or less. Rain likely.

FRI
SW wind around 5 kt. Waves around 2 ft or less. A chance of rain.

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

PZZ133-212145
Northern Inland Waters Including The San Juan Islands
131 AM PDT Mon Sep 21 2026

TODAY
S wind around 5 kt. Waves around 2 ft or less. Patchy fog early this morning.

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

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

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

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

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

THU
N wind around 5 kt, backing to NW in the afternoon. Waves around 2 ft or less. A chance of rain in the afternoon.

THU NIGHT
W wind 5 to 10 kt. Waves around 2 ft or less. Rain likely.

FRI
SW wind 5 to 10 kt. Waves around 2 ft or less. A chance of rain in the morning.

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

PZZ135-212145
Puget Sound and Hood Canal
131 AM PDT Mon Sep 21 2026

TODAY
S wind around 5 kt, backing to E late. Waves around 2 ft or less. Patchy fog early this morning.

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

TUE
SE wind around 5 kt, veering to S in the afternoon. Waves around 2 ft or less.

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

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

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

THU
N wind around 5 kt, rising to 5 to 10 kt in the afternoon. Waves around 2 ft or less. A chance of rain in the afternoon.

THU NIGHT
N wind around 5 kt, backing to SW after midnight. Waves around 2 ft or less. Rain likely.

FRI
SW wind around 5 kt. Waves around 2 ft or less. A chance of rain.

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

PZZ110-212145
Grays Harbor Bar
131 AM PDT Mon Sep 21 2026

Combined seas 2 to 4 ft building to 6 to 8 ft tonight. Bar conditions light. Maximum ebb currents will occur around 200 PM Monday, 200 AM Tuesday, and 245 PM Tuesday.