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National Weather Service Marine Forecast FZUS56 KSEW

FZUS56 KSEW 251003
CWFSEW

Coastal Waters Forecast for Washington
National Weather Service Seattle WA
303 AM PDT Tue Aug 25 2026

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

PZZ100-252315
303 AM PDT Tue Aug 25 2026

.SYNOPSIS FOR THE NORTHERN AND CENTRAL WASHINGTON COASTAL AND INLAND WATERS...High pressure over the coastal waters will remain in place through today. A weak frontal system will move across the waters Wednesday. Onshore flow then continues late week into next weekend with additional systems.

PZZ150-252315
Coastal Waters From Cape Flattery To James Island Out 10 Nm
303 AM PDT Tue Aug 25 2026

TODAY
SE wind 5 to 10 kt, becoming S 15 to 20 kt. Seas 3 to 5 ft. Wave Detail: S 4 ft at 5 seconds, W 3 ft at 7 seconds and SW 2 ft at 17 seconds.

TONIGHT
S wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Seas 3 to 4 ft. Wave Detail: S 3 ft at 6 seconds, W 2 ft at 8 seconds and SW 2 ft at 16 seconds.

WED
S wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 5 seconds, W 3 ft at 8 seconds and W 2 ft at 14 seconds. A chance of showers in the afternoon.

WED NIGHT
S wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: SW 3 ft at 7 seconds and SW 2 ft at 14 seconds. A chance of showers.

THU
S wind 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 7 seconds, W 2 ft at 9 seconds and SW 2 ft at 15 seconds. A chance of showers.

THU NIGHT
S wind 5 to 10 kt, easing to around 5 kt after midnight. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 6 seconds and W 2 ft at 10 seconds.

FRI
SW wind around 5 kt. Seas around 3 ft. Wave Detail: SW 2 ft at 6 seconds, W 2 ft at 9 seconds and SW 2 ft at 15 seconds.

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

SAT
W wind around 5 kt. Seas around 4 ft. Wave Detail: W 4 ft at 7 seconds and SW 2 ft at 15 seconds.

SAT NIGHT
W wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: W 4 ft at 7 seconds and SW 2 ft at 18 seconds.

PZZ153-252315
Coastal Waters From James Island To Point Grenville Out 10 Nm
303 AM PDT Tue Aug 25 2026

TODAY
SE wind 5 to 10 kt, rising to 10 to 15 kt late this morning, then becoming S 15 to 20 kt early this afternoon, easing to 10 to 15 kt late. Seas 3 to 5 ft. Wave Detail: S 3 ft at 5 seconds, W 3 ft at 7 seconds and SW 2 ft at 17 seconds. A slight chance of showers late.

TONIGHT
S wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Seas 3 to 4 ft. Wave Detail: S 3 ft at 6 seconds, W 3 ft at 7 seconds and SW 2 ft at 16 seconds.

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

WED NIGHT
S wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 7 seconds and SW 2 ft at 14 seconds. A chance of showers after midnight.

THU
S wind around 10 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 7 seconds, W 2 ft at 9 seconds and SW 2 ft at 15 seconds. A chance of showers.

THU NIGHT
S wind around 5 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 6 seconds and W 2 ft at 11 seconds.

FRI
W wind around 5 kt. Seas around 3 ft. Wave Detail: SW 2 ft at 6 seconds, W 3 ft at 9 seconds and SW 2 ft at 15 seconds.

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

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

SAT NIGHT
NW wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: W 4 ft at 7 seconds and SW 2 ft at 18 seconds.

PZZ156-252315
Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm
303 AM PDT Tue Aug 25 2026

TODAY
S wind 10 to 15 kt, rising to 15 to 20 kt late this morning and afternoon. Seas 4 to 6 ft. Wave Detail: S 5 ft at 6 seconds, NW 3 ft at 7 seconds and SW 2 ft at 17 seconds.

TONIGHT
S wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 7 seconds and SW 2 ft at 16 seconds.

WED
S wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: S 3 ft at 5 seconds, W 2 ft at 8 seconds and SW 2 ft at 15 seconds.

WED NIGHT
S wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at 7 seconds and SW 2 ft at 14 seconds.

THU
S wind 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: SW 3 ft at 7 seconds, W 3 ft at 9 seconds and SW 2 ft at 15 seconds. A chance of showers in the morning.

THU NIGHT
SW wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 6 seconds and W 3 ft at 11 seconds.

FRI
W wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SW 2 ft at 6 seconds, W 3 ft at 9 seconds and SW 2 ft at 15 seconds.

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

SAT
NW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: NW 5 ft at 7 seconds and SW 2 ft at 16 seconds.

SAT NIGHT
NW wind 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: NW 5 ft at 7 seconds and SW 2 ft at 18 seconds.

PZZ170-252315
Coastal Waters From Cape Flattery To James Island 10 To 60 Nm
303 AM PDT Tue Aug 25 2026

TODAY
NW wind 5 to 10 kt, becoming S 10 to 15 kt late this morning and afternoon. Seas 3 to 5 ft. Wave Detail: SE 3 ft at 4 seconds, W 4 ft at 7 seconds and S 2 ft at 16 seconds.

TONIGHT
S wind 5 to 10 kt. Seas around 4 ft. Wave Detail: SE 3 ft at 6 seconds, W 3 ft at 8 seconds and SW 2 ft at 15 seconds.

WED
SE wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: S 4 ft at 5 seconds, W 3 ft at 8 seconds and SW 2 ft at 14 seconds. A chance of showers in the afternoon.

WED NIGHT
S wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: S 4 ft at 6 seconds, W 3 ft at 8 seconds and SW 2 ft at 14 seconds. A chance of showers in the evening.

THU
S wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: S 3 ft at 6 seconds, W 2 ft at 9 seconds and S 2 ft at 14 seconds. A chance of showers in the morning.

THU NIGHT
SW wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 6 seconds, W 2 ft at 11 seconds and S 2 ft at 14 seconds.

FRI
W wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SW 2 ft at 6 seconds, W 3 ft at 9 seconds and S 2 ft at 15 seconds.

FRI NIGHT
W wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: NW 5 ft at 6 seconds and S 2 ft at 14 seconds.

SAT
NW wind 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: NW 5 ft at 6 seconds and SW 2 ft at 15 seconds.

SAT NIGHT
NW wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Seas 4 to 6 ft. Wave Detail: NW 5 ft at 6 seconds and SW 2 ft at 18 seconds.

PZZ173-252315
Coastal Waters From James Island To Point Grenville 10 To 60 Nm
303 AM PDT Tue Aug 25 2026

TODAY
N wind 5 to 10 kt, becoming S 10 to 15 kt late this morning and afternoon. Seas 4 to 5 ft. Wave Detail: SE 3 ft at 5 seconds, NW 4 ft at 7 seconds and S 2 ft at 16 seconds.

TONIGHT
S wind 5 to 10 kt. Seas around 4 ft. Wave Detail: SE 3 ft at 6 seconds, W 3 ft at 8 seconds and SW 2 ft at 15 seconds.

WED
S wind around 10 kt, rising to around 15 kt in the afternoon. Seas 4 to 5 ft. Wave Detail: S 4 ft at 5 seconds, W 3 ft at 8 seconds and SW 2 ft at 14 seconds.

WED NIGHT
S wind 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: S 4 ft at 6 seconds, W 3 ft at 8 seconds and SW 2 ft at 14 seconds. A chance of showers in the evening.

THU
S wind around 10 kt. Seas 4 to 5 ft. Wave Detail: S 3 ft at 6 seconds, NW 2 ft at 9 seconds and SW 2 ft at 14 seconds. A chance of showers in the morning.

THU NIGHT
W wind 5 to 10 kt. Seas around 4 ft. Wave Detail: SW 3 ft at 6 seconds, W 3 ft at 9 seconds and SW 2 ft at 14 seconds.

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

FRI NIGHT
NW wind 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: NW 5 ft at 6 seconds and S 2 ft at 14 seconds.

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

SAT NIGHT
NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: NW 6 ft at 6 seconds and SW 2 ft at 17 seconds.

PZZ176-252315
Coastal Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm
303 AM PDT Tue Aug 25 2026

TODAY
N wind 5 to 10 kt, becoming S 10 to 15 kt late this morning and afternoon. Seas 4 to 5 ft. Wave Detail: SE 3 ft at 6 seconds, NW 4 ft at 7 seconds and S 2 ft at 16 seconds.

TONIGHT
S wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: SE 3 ft at 6 seconds, W 3 ft at 8 seconds and SW 2 ft at 15 seconds.

WED
S wind 5 to 10 kt, rising to around 15 kt in the afternoon. Seas 4 to 5 ft. Wave Detail: S 4 ft at 5 seconds, W 3 ft at 8 seconds and SW 2 ft at 14 seconds.

WED NIGHT
S wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: S 4 ft at 6 seconds, W 3 ft at 8 seconds and SW 2 ft at 14 seconds.

THU
S wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: SW 3 ft at 6 seconds, NW 2 ft at 9 seconds and SW 2 ft at 14 seconds. A chance of showers in the morning.

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

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

FRI NIGHT
NW wind 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: NW 5 ft at 6 seconds and S 2 ft at 15 seconds.

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

SAT NIGHT
NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: NW 6 ft at 7 seconds and SW 2 ft at 18 seconds.

PZZ130-252315
West Entrance U.S. Waters Strait Of Juan De Fuca
303 AM PDT Tue Aug 25 2026

TODAY
SE wind 5 to 10 kt, easing to around 5 kt late this morning, veering to W early this afternoon, rising to 10 to 15 kt late. Seas around 3 ft. Wave Detail: W 3 ft at 7 seconds.

TONIGHT
W wind 10 to 15 kt, becoming NW 5 to 10 kt after midnight. Seas around 3 ft. Wave Detail: W 2 ft at 7 seconds.

WED
W wind 5 to 10 kt. Seas around 3 ft. Wave Detail: W 2 ft at 8 seconds.

WED NIGHT
W wind 5 to 10 kt, backing to S after midnight. Seas around 3 ft. Wave Detail: W 2 ft at 7 seconds. A chance of showers after midnight.

THU
S wind around 5 kt. Seas around 3 ft. Wave Detail: W 2 ft at 9 seconds. Showers likely.

THU NIGHT
SW wind 5 to 10 kt. Seas around 3 ft in the evening, then around 2 ft or less. Wave Detail: W 2 ft at 9 seconds. A chance of showers in the evening.

FRI
W wind 5 to 10 kt. Seas around 2 ft or less. Wave Detail: W 2 ft at 8 seconds.

FRI NIGHT
W wind 5 to 10 kt. Seas around 2 ft or less, then around 3 ft after midnight. Wave Detail: W 3 ft at 6 seconds.

SAT
W wind 5 to 10 kt. Seas around 3 ft. Wave Detail: W 3 ft at 7 seconds.

SAT NIGHT
W wind 5 to 10 kt. Seas around 3 ft. Wave Detail: W 3 ft at 7 seconds.

PZZ131-252315
Central U.S. Waters Strait Of Juan De Fuca
303 AM PDT Tue Aug 25 2026

SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH LATE TONIGHT

TODAY
SE wind 5 to 10 kt, becoming E late this morning, backing to W early this afternoon, rising to 15 to 20 kt late. Waves around 2 ft or less.

TONIGHT
W wind 20 to 25 kt, easing to 15 to 20 kt after midnight. Waves 3 to 5 ft.

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

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

THU
SW wind 5 to 10 kt. Waves around 2 ft or less. A chance of showers in the morning, then showers likely in the afternoon.

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

FRI
SW wind 5 to 10 kt, becoming W 10 to 15 kt in the afternoon. Waves around 2 ft or less.

FRI NIGHT
W wind 10 to 15 kt. Waves around 3 ft.

SAT
W wind 10 to 15 kt, easing to 5 to 10 kt in the afternoon. Waves around 3 ft in the morning, then around 2 ft or less.

SAT NIGHT
W wind 10 to 15 kt. Waves around 2 ft or less.

PZZ132-252315
East Entrance U.S. Waters Strait Of Juan De Fuca
303 AM PDT Tue Aug 25 2026

SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH LATE TONIGHT

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

TONIGHT
SW wind 10 to 15 kt. Waves around 3 ft.

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

WED NIGHT
W wind 10 to 15 kt, becoming SW 5 to 10 kt after midnight. Waves around 2 ft or less.

THU
S wind around 5 kt. Waves around 2 ft or less. A chance of showers in the afternoon.

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

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

FRI NIGHT
W wind 10 to 15 kt, rising to 15 to 20 kt after midnight. Waves around 2 ft or less, then around 3 ft after midnight.

SAT
W wind 10 to 15 kt, easing to 5 to 10 kt in the afternoon. Waves around 3 ft in the morning, then around 2 ft or less.

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

PZZ134-252315
Admiralty Inlet
303 AM PDT Tue Aug 25 2026

TODAY
Light and variable winds, becoming SE around 5 kt late this morning and early afternoon, veering to NW late. Waves around 2 ft or less. Patchy smoke late.

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

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

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

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

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

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

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

SAT
SW wind around 5 kt, veering to W around 5 kt in the afternoon. Waves around 2 ft or less. A chance of rain in the morning.

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

PZZ133-252315
Northern Inland Waters Including The San Juan Islands
303 AM PDT Tue Aug 25 2026

TODAY
Light and variable winds, becoming SW around 5 kt this afternoon. Waves around 2 ft or less. Patchy smoke.

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

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

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

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

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

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

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

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

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

PZZ135-252315
Puget Sound and Hood Canal
303 AM PDT Tue Aug 25 2026

TODAY
Light and variable winds, becoming S around 5 kt late this morning, veering to SW early this afternoon, rising to 10 to 15 kt late. Waves around 2 ft or less.

TONIGHT
SW wind 10 to 15 kt, becoming S 5 to 10 kt after midnight. Waves around 2 ft or less.

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

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

THU
S wind 5 to 10 kt, becoming SW 10 to 15 kt in the afternoon. Waves around 2 ft or less.

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

FRI
SW wind around 5 kt. Waves around 2 ft or less. A chance of showers in the afternoon.

FRI NIGHT
NW wind 5 to 10 kt, becoming SW after midnight. Waves around 2 ft or less. A chance of rain.

SAT
S wind around 5 kt. Waves around 2 ft or less. A chance of rain.

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

PZZ110-252315
Grays Harbor Bar
303 AM PDT Tue Aug 25 2026

Combined seas 3 to 5 ft. Bar conditions light. Maximum ebb currents will occur around 330 AM Tuesday, 400 PM Tuesday, and 400 AM Wednesday.