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National Weather Service Marine Forecast FZUS56 KSEW

FZUS56 KSEW 170900
CWFSEW

Coastal Waters Forecast for Washington
National Weather Service Seattle WA
200 AM PDT Sat Oct 17 2026

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

PZZ100-172200
200 AM PDT Sat Oct 17 2026

.SYNOPSIS FOR THE NORTHERN AND CENTRAL WASHINGTON COASTAL AND INLAND WATERS...A frontal system will move through today for rain and elevated seas. High pressure building over the waters Saturday afternoon will remain through Sunday. Another system will move by west of the coastal waters Monday. High pressure will rebuild over the area Tuesday.

PZZ150-172200
Coastal Waters From Cape Flattery To James Island Out 10 Nm
200 AM PDT Sat Oct 17 2026

TODAY
W wind 10 to 15 kt, easing to 5 to 10 kt this afternoon. Seas 7 to 9 ft. Wave Detail: SW 2 ft at 7 seconds, W 9 ft at 11 seconds and SW 2 ft at 15 seconds.

TONIGHT
NW wind around 5 kt, veering to SE after midnight. Seas 7 to 9 ft. Wave Detail: W 9 ft at 11 seconds and SW 2 ft at 17 seconds.

SUN
NE wind around 5 kt. Seas 7 to 8 ft. Wave Detail: W 8 ft at 12 seconds and SW 2 ft at 18 seconds.

SUN NIGHT
N wind around 5 kt. Seas 6 to 8 ft. Wave Detail: W 7 ft at 12 seconds and SW 2 ft at 18 seconds.

MON
NE wind around 5 kt, backing to N around 5 kt in the afternoon. Seas 5 to 6 ft, building to 7 ft in the afternoon. Wave Detail: W 5 ft at 11 seconds, W 4 ft at 16 seconds and SW 2 ft at 17 seconds.

MON NIGHT
N wind around 5 kt. Seas 6 to 8 ft. Wave Detail: W 6 ft at 12 seconds, W 3 ft at 15 seconds and SW 2 ft at 16 seconds.

TUE
N wind around 5 kt. Seas 5 to 6 ft. Wave Detail: W 6 ft at 10 seconds and SW 2 ft at 15 seconds.

TUE NIGHT
N wind 5 to 10 kt, easing to around 5 kt after midnight. Seas 4 to 6 ft. Wave Detail: NW 2 ft at 7 seconds, W 5 ft at 12 seconds and SW 2 ft at 16 seconds.

WED
N wind around 5 kt. Seas around 4 ft. Wave Detail: NW 2 ft at 6 seconds and W 4 ft at 11 seconds.

WED NIGHT
W wind around 5 kt. Seas 5 to 7 ft. Wave Detail: W 3 ft at 6 seconds, W 6 ft at 12 seconds and W 7 ft at 18 seconds. A chance of showers after midnight.

PZZ153-172200
Coastal Waters From James Island To Point Grenville Out 10 Nm
200 AM PDT Sat Oct 17 2026

TODAY
NW wind 5 to 10 kt. Seas 6 to 8 ft. Wave Detail: W 2 ft at 6 seconds, W 8 ft at 11 seconds and SW 2 ft at 15 seconds.

TONIGHT
N wind around 5 kt. Seas 7 to 9 ft. Wave Detail: W 8 ft at 11 seconds.

SUN
N wind around 5 kt. Seas 6 to 8 ft. Wave Detail: W 7 ft at 12 seconds.

SUN NIGHT
N wind 5 to 10 kt. Seas 6 to 8 ft. Wave Detail: W 7 ft at 12 seconds and SW 2 ft at 18 seconds.

MON
E wind around 5 kt, veering to SW in the afternoon. Seas 5 to 7 ft, building to 7 to 8 ft in the afternoon. Wave Detail: W 5 ft at 11 seconds, W 5 ft at 15 seconds and SW 2 ft at 17 seconds.

MON NIGHT
N wind 5 to 10 kt, easing to around 5 kt after midnight. Seas 6 to 8 ft. Wave Detail: NW 2 ft at 5 seconds, W 6 ft at 12 seconds and W 5 ft at 15 seconds.

TUE
N wind around 5 kt. Seas 5 to 6 ft. Wave Detail: W 6 ft at 10 seconds and SW 2 ft at 15 seconds.

TUE NIGHT
N wind 5 to 10 kt, becoming NE after midnight. Seas 4 to 6 ft. Wave Detail: NW 6 ft at 9 seconds.

WED
NE wind around 5 kt, backing to N in the afternoon. Seas 4 to 5 ft. Wave Detail: NW 4 ft at 6 seconds and W 4 ft at 12 seconds.

WED NIGHT
N wind around 5 kt. Seas 4 to 5 ft, building to 5 to 7 ft after midnight. Wave Detail: NW 4 ft at 6 seconds, W 6 ft at 12 seconds and W 7 ft at 19 seconds. A chance of showers after midnight.

PZZ156-172200
Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm
200 AM PDT Sat Oct 17 2026

TODAY
NW wind 10 to 15 kt, easing to 5 to 10 kt this afternoon. Seas 6 to 8 ft. Wave Detail: W 8 ft at 11 seconds. A slight chance of showers early this morning.

TONIGHT
N wind 10 to 15 kt. Seas 7 to 8 ft. Wave Detail: W 8 ft at 11 seconds.

SUN
N wind 5 to 10 kt. Seas 7 to 8 ft. Wave Detail: W 7 ft at 12 seconds. Patchy fog in the morning.

SUN NIGHT
N wind 10 to 15 kt, easing to around 5 kt after midnight. Seas 6 to 7 ft. Wave Detail: W 7 ft at 12 seconds.

MON
E wind around 5 kt, veering to S in the afternoon. Seas 5 to 6 ft, building to 7 to 8 ft in the afternoon. Wave Detail: W 5 ft at 11 seconds, W 4 ft at 15 seconds and SW 2 ft at 17 seconds. Patchy fog in the morning.

MON NIGHT
N wind 5 to 10 kt. Seas 6 to 8 ft. Wave Detail: NW 2 ft at 6 seconds and W 6 ft at 15 seconds. Patchy fog after midnight.

TUE
N wind around 5 kt. Seas 5 to 6 ft. Wave Detail: W 6 ft at 10 seconds. Patchy fog in the morning.

TUE NIGHT
N wind 5 to 10 kt, becoming NE after midnight. Seas 4 to 6 ft. Wave Detail: NW 3 ft at 7 seconds and W 6 ft at 10 seconds.

WED
NE wind around 5 kt. 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 4 to 5 ft, building to 5 to 7 ft after midnight. Wave Detail: NW 3 ft at 6 seconds, W 6 ft at 12 seconds and W 6 ft at 19 seconds.

PZZ170-172200
Coastal Waters From Cape Flattery To James Island 10 To 60 Nm
200 AM PDT Sat Oct 17 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM PDT THIS MORNING THROUGH THIS EVENING

TODAY
W wind 15 to 20 kt, easing to 5 to 10 kt. Seas 8 to 10 ft. Wave Detail: W 10 ft at 9 seconds and S 2 ft at 15 seconds.

TONIGHT
NW wind around 5 kt, veering to N around 5 kt after midnight. Seas 8 to 10 ft. Wave Detail: W 9 ft at 11 seconds and S 2 ft at 16 seconds.

SUN
NE wind around 5 kt. Seas 8 to 9 ft. Wave Detail: W 9 ft at 12 seconds and S 2 ft at 16 seconds.

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

MON
N wind 5 to 10 kt. Seas 6 to 7 ft, building to 7 to 9 ft in the afternoon. Wave Detail: W 7 ft at 12 seconds, W 2 ft at 15 seconds and S 2 ft at 17 seconds.

MON NIGHT
N wind 10 to 15 kt. Seas 8 to 10 ft, subsiding to 7 to 8 ft after midnight. Wave Detail: NW 2 ft at 5 seconds, W 7 ft at 12 seconds and W 2 ft at 15 seconds.

TUE
N wind 5 to 10 kt. Seas 6 to 8 ft. Wave Detail: W 7 ft at 9 seconds and S 2 ft at 15 seconds.

TUE NIGHT
N wind 5 to 10 kt. Seas 5 to 7 ft. Wave Detail: NW 4 ft at 8 seconds, W 6 ft at 12 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 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 9 ft after midnight. Wave Detail: NW 3 ft at 5 seconds, W 7 ft at 12 seconds and S 2 ft at 15 seconds. A chance of showers.

PZZ173-172200
Coastal Waters From James Island To Point Grenville 10 To 60 Nm
200 AM PDT Sat Oct 17 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM PDT THIS MORNING THROUGH THIS EVENING

TODAY
W wind 15 to 20 kt, becoming NW 5 to 10 kt. Seas 8 to 10 ft. Wave Detail: NW 2 ft at 5 seconds, SW 4 ft at 8 seconds and W 10 ft at 11 seconds.

TONIGHT
N wind 5 to 10 kt. Seas 8 to 10 ft. Wave Detail: W 9 ft at 11 seconds and S 2 ft at 16 seconds.

SUN
N wind around 5 kt. Seas 8 to 9 ft. Wave Detail: W 8 ft at 12 seconds and SW 2 ft at 16 seconds.

SUN NIGHT
N wind 5 to 10 kt. Seas 7 to 9 ft. Wave Detail: W 8 ft at 12 seconds, W 2 ft at 17 seconds and SW 2 ft at 17 seconds.

MON
NE wind 5 to 10 kt, becoming N 10 to 15 kt in the afternoon. Seas 6 to 7 ft, building to 8 to 9 ft in the afternoon. Wave Detail: W 7 ft at 12 seconds, W 5 ft at 15 seconds and S 2 ft at 17 seconds. A chance of showers.

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

TUE
N wind 10 to 15 kt, easing to 5 to 10 kt in the afternoon. Seas 6 to 8 ft. Wave Detail: W 8 ft at 10 seconds and S 2 ft at 15 seconds.

TUE NIGHT
N wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Seas 6 to 7 ft. Wave Detail: NW 5 ft at 8 seconds, NW 6 ft at 12 seconds and S 2 ft at 16 seconds.

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

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

PZZ176-172200
Coastal Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm
200 AM PDT Sat Oct 17 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM PDT THIS MORNING THROUGH THIS EVENING

TODAY
NW wind 15 to 20 kt, easing to 10 to 15 kt late this morning and afternoon. Seas 7 to 10 ft. Wave Detail: NW 4 ft at 5 seconds, W 9 ft at 11 seconds and SW 2 ft at 15 seconds.

TONIGHT
N wind 5 to 10 kt. Seas 8 to 9 ft. Wave Detail: W 9 ft at 11 seconds and S 2 ft at 15 seconds.

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

SUN NIGHT
N wind 5 to 10 kt. Seas 7 to 8 ft. Wave Detail: W 8 ft at 12 seconds and SW 2 ft at 17 seconds.

MON
NE wind 5 to 10 kt, becoming N 10 to 15 kt in the afternoon. Seas 6 to 7 ft, building to 8 to 9 ft in the afternoon. Wave Detail: W 7 ft at 11 seconds, W 5 ft at 15 seconds and S 2 ft at 17 seconds. A chance of showers.

MON NIGHT
N wind 10 to 15 kt. Seas 8 to 10 ft. Wave Detail: NW 5 ft at 6 seconds, W 8 ft at 14 seconds and S 2 ft at 16 seconds.

TUE
N wind 10 to 15 kt, easing to 5 to 10 kt in the afternoon. Seas 6 to 8 ft. Wave Detail: N 3 ft at 5 seconds, W 8 ft at 10 seconds and S 2 ft at 15 seconds.

TUE NIGHT
N wind 10 to 15 kt. Seas 6 to 7 ft. Wave Detail: NW 6 ft at 9 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 8 seconds, W 4 ft at 11 seconds and S 2 ft at 15 seconds.

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

PZZ130-172200
West Entrance U.S. Waters Strait Of Juan De Fuca
200 AM PDT Sat Oct 17 2026

TODAY
W wind 15 to 20 kt, easing to 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: W 2 ft at 4 seconds and W 6 ft at 11 seconds.

TONIGHT
W wind 5 to 10 kt, easing to around 5 kt after midnight. Seas 4 to 6 ft. Wave Detail: W 6 ft at 11 seconds.

SUN
NE wind around 5 kt. Seas 3 to 5 ft. Wave Detail: W 5 ft at 12 seconds.

SUN NIGHT
NE wind around 5 kt. Seas 4 to 6 ft. Wave Detail: W 6 ft at 12 seconds.

MON
E wind around 5 kt, backing to N in the afternoon. Seas 3 to 5 ft. Wave Detail: W 5 ft at 11 seconds and W 2 ft at 15 seconds.

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

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

TUE NIGHT
NE wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at 10 seconds.

WED
E wind around 5 kt in the morning, becoming light and variable. Seas 3 to 4 ft. Wave Detail: W 3 ft at 11 seconds.

WED NIGHT
W wind around 5 kt. Seas 3 to 4 ft, building to 5 to 6 ft after midnight. Wave Detail: W 5 ft at 11 seconds and W 4 ft at 17 seconds. A chance of showers after midnight.

PZZ131-172200
Central U.S. Waters Strait Of Juan De Fuca
200 AM PDT Sat Oct 17 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM PDT THIS MORNING THROUGH THIS AFTERNOON

TODAY
W wind 20 to 25 kt with gusts up to 30 kt, easing to 15 to 20 kt late this morning and early afternoon, rising to 20 to 25 kt late. Waves 4 to 6 ft. A slight chance of showers early this morning.

TONIGHT
W wind 15 to 25 kt, easing to 5 to 10 kt after midnight. Waves 3 to 5 ft.

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

SUN NIGHT
NE wind around 5 kt. Waves around 2 ft or less.

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

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

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

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

WED
SE wind around 5 kt, backing to NE in the afternoon. 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.

PZZ132-172200
East Entrance U.S. Waters Strait Of Juan De Fuca
200 AM PDT Sat Oct 17 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM PDT THIS MORNING THROUGH THIS AFTERNOON

TODAY
W wind 20 to 25 kt, easing to 15 to 25 kt this afternoon. Waves 3 to 5 ft. A chance of showers early this morning.

TONIGHT
W wind 15 to 20 kt, easing to 5 to 10 kt after midnight. Waves 4 to 6 ft, subsiding to 3 ft after midnight.

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

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

MON
NW 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 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. Waves around 2 ft or less.

PZZ134-172200
Admiralty Inlet
200 AM PDT Sat Oct 17 2026

TODAY
NW wind 10 to 15 kt. Waves around 2 ft or less, then around 3 ft this afternoon. A chance of showers early this morning.

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

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

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

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

PZZ133-172200
Northern Inland Waters Including The San Juan Islands
200 AM PDT Sat Oct 17 2026

TODAY
SW wind 10 to 15 kt, becoming W 5 to 10 kt this afternoon. Waves around 2 ft or less. A chance of showers early this morning.

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

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

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

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

MON NIGHT
NW wind around 5 kt. 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 5 to 10 kt, becoming N 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
Light and variable winds, becoming SE around 5 kt after midnight. Waves around 2 ft or less.

PZZ135-172200
Puget Sound and Hood Canal
200 AM PDT Sat Oct 17 2026

TODAY
SW wind 10 to 15 kt, becoming W 5 to 10 kt late this morning, veering to NW early this afternoon, veering to N late. Waves around 2 ft or less. A chance of showers this morning.

TONIGHT
NE 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. Patchy fog in the morning.

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

MON
S wind around 5 kt. Waves around 2 ft or less. Patchy fog in the morning.

MON NIGHT
N wind around 5 kt. Waves around 2 ft or less. Patchy fog after midnight.

TUE
N wind around 5 kt, rising to 5 to 10 kt in the afternoon. Waves around 2 ft or less. Patchy fog in the morning.

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.

PZZ110-172200
Grays Harbor Bar
200 AM PDT Sat Oct 17 2026

Combined seas 6 to 8 ft Saturday. Bar conditions moderate. Maximum ebb currents will occur around 945 AM Saturday, 945 PM Saturday, and 1100 AM Sunday.