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National Weather Service Marine Forecast FZUS56 KSEW

FZUS56 KSEW 220339
CWFSEW

Coastal Waters Forecast for Washington
National Weather Service Seattle WA
839 PM PDT Mon Sep 21 2020

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

PZZ100-221245-
839 PM PDT Mon Sep 21 2020

.SYNOPSIS FOR THE NORTHERN AND CENTRAL WASHINGTON COASTAL AND
INLAND WATERS...Light onshore flow will continue today. A stronger cold
front will reach the area Tuesday night into Wednesday. Onshore
flow will continue into the end of the week as a series of systems
affect the area.



PZZ150-153-156-170-173-176-221245-
Coastal Waters From Cape Flattery To James Island Out 10 Nm-
Coastal Waters From James Island To Point Grenville Out 10 Nm-
Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm-
Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-
Coastal Waters From James Island To Point Grenville 10 To 60 Nm-
Coastal Waters From Point Grenville To Cape Shoalwater 10 To
60 Nm-
839 PM PDT Mon Sep 21 2020

...GALE WATCH IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY
MORNING...

TONIGHT
NW wind to 10 kt becoming W after midnight. Wind waves
1 ft or less. W swell 6 ft at 10 seconds. A chance of showers in
the evening. A slight chance of showers after midnight. 

TUE
S wind 5 to 15 kt rising to 15 to 25 kt in the afternoon.
Wind waves 2 to 4 ft. W swell 6 ft at 10 seconds. A slight chance
of showers in the morning then a chance of showers in the
afternoon. 

TUE NIGHT
S wind 20 to 30 kt rising to 25 to 35 kt after
midnight. Combined seas 6 to 9 ft with a dominant period of
10 seconds. Showers likely in the evening then showers after
midnight. 

WED
S wind 25 to 35 kt. Combined seas 12 to 15 ft with a
dominant period of 10 seconds. 

WED NIGHT
SW wind 20 to 30 kt. Wind waves 5 to 7 ft. W swell
14 ft at 12 seconds. 

THU
SW wind 15 to 20 kt. Wind waves 1 to 3 ft. W swell 17 ft
at 14 seconds. 

THU NIGHT
SW wind 5 to 15 kt. Wind waves 1 to 3 ft. W swell
16 ft at 14 seconds. 

FRI
SW wind 5 to 15 kt. Wind waves 2 ft or less. W swell 15 ft
subsiding to 11 ft. 

SAT
SW wind 5 to 15 kt. Wind waves 1 to 3 ft. W swell 9 ft
building to 12 ft.  



PZZ130-221245-
West Entrance U.S. Waters Strait Of Juan De Fuca-
839 PM PDT Mon Sep 21 2020

TONIGHT
SW wind to 10 kt. Wind waves 1 ft or less. W swell
3 ft at 10 seconds building to 5 ft at 10 seconds after midnight.
A chance of showers. 

TUE
NE wind to 10 kt rising to 5 to 15 kt in the afternoon.
Wind waves 2 ft or less. W swell 5 ft at 10 seconds. A chance of
showers. 

TUE NIGHT
E wind 5 to 15 kt becoming 10 to 20 kt after
midnight. Wind waves 1 to 3 ft. W swell 4 ft at 10 seconds
building to 6 ft at 10 seconds after midnight. A chance of
showers in the evening then showers after midnight. 

WED
SE wind 15 to 25 kt. Wind waves 2 to 4 ft. SW swell 9 ft
at 10 seconds. 

WED NIGHT
S wind 15 to 25 kt easing to 5 to 15 kt after
midnight. Wind waves 2 to 4 ft subsiding to 2 ft or less after
midnight. W swell 10 ft at 11 seconds. 

THU
SW wind 5 to 15 kt. Wind waves 1 to 2 ft. W swell 12 ft at
14 seconds. 

THU NIGHT
SW wind 5 to 15 kt. Wind waves 2 ft or less. W swell
13 ft at 14 seconds. 

FRI
SW wind to 10 kt. Wind waves 1 ft or less. W swell 13 ft
subsiding to 10 ft. 

SAT
S wind 5 to 15 kt. Wind waves 2 ft or less. W swell 7 ft
building to 9 ft.  



PZZ131-221245-
Central U.S. Waters Strait Of Juan De Fuca-
839 PM PDT Mon Sep 21 2020

TONIGHT
W wind 5 to 15 kt. Wind waves 2 ft or less. A chance
of showers. 

TUE
W wind to 10 kt in the morning becoming light. Wind waves
1 ft or less in the morning becoming less than 1 ft. A slight
chance of showers. 

TUE NIGHT
Light wind becoming E 15 to 25 kt after midnight.
Wind waves less than 1 ft becoming 2 to 4 ft after midnight. A
chance of showers in the evening then showers after midnight. 

WED
E wind 15 to 25 kt. Wind waves 2 to 4 ft. 

WED NIGHT
NW wind to 10 kt becoming variable after midnight.
Wind waves 2 ft or less. 

THU
Variable wind 5 to 15 kt. Wind waves 2 ft or less. 

THU NIGHT
SW wind 5 to 15 kt becoming variable to 10 kt after
midnight. Wind waves 2 ft or less. 

FRI
Variable wind to 10 kt becoming SW 5 to 15 kt. Wind waves
2 ft or less. 

SAT
SW wind 5 to 15 kt. Wind waves 2 ft or less.  



PZZ132-221245-
East Entrance U.S. Waters Strait Of Juan De Fuca-
839 PM PDT Mon Sep 21 2020

...GALE WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY
AFTERNOON...

TONIGHT
W wind 5 to 15 kt. Wind waves 2 ft or less. A chance
of showers. 

TUE
SW wind 5 to 15 kt becoming E in the afternoon. Wind waves
2 ft or less. A slight chance of showers. 

TUE NIGHT
Light wind becoming SE 25 to 35 kt after midnight.
Wind waves less than 1 ft becoming 4 to 6 ft after midnight.
Showers likely after midnight. 

WED
SE wind 25 to 35 kt. Wind waves 4 to 6 ft. 

WED NIGHT
SE wind 15 to 25 kt easing to 10 to 20 kt after
midnight. Wind waves 2 to 4 ft. 

THU
S wind to 10 kt. Wind waves 1 ft or less. 

THU NIGHT
S wind to 10 kt. Wind waves 1 ft or less. 

FRI
S wind to 10 kt. Wind waves 1 ft or less. 

SAT
S wind to 10 kt. Wind waves 1 ft or less.  



PZZ134-221245-
Admiralty Inlet-
839 PM PDT Mon Sep 21 2020

TONIGHT
NW wind to 10 kt. Wind waves 1 ft or less. A chance of
showers. 

TUE
SE wind to 10 kt. Wind waves 1 ft or less. A chance of
showers. 

TUE NIGHT
Light wind becoming SE 15 to 25 kt after midnight.
Wind waves less than 1 ft becoming 2 to 4 ft after midnight. A
slight chance of showers in the evening then showers likely after
midnight. 

WED
SE wind 15 to 25 kt. Wind waves 2 to 4 ft. 

WED NIGHT
S wind 15 to 25 kt. Wind waves 2 to 4 ft. 

THU
S wind 5 to 15 kt. Wind waves 2 ft or less. 

THU NIGHT
S wind to 10 kt. Wind waves 1 ft or less. 

FRI
S wind to 10 kt. Wind waves 1 ft or less. 

SAT
S wind 5 to 15 kt. Wind waves 2 ft or less.  



PZZ133-221245-
Northern Inland Waters Including The San Juan Islands-
839 PM PDT Mon Sep 21 2020

...GALE WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY
AFTERNOON...

TONIGHT
S wind 5 to 15 kt. Wind waves 2 ft or less. A chance
of showers. 

TUE
S wind 5 to 15 kt easing to 10 kt in the afternoon. Wind
waves 2 ft or less. A chance of showers. 

TUE NIGHT
S wind to 10 kt becoming SE 25 to 35 kt after
midnight. Wind waves 1 ft or less building to 4 to 6 ft after
midnight. A slight chance of showers in the evening then showers
likely after midnight. 

WED
SE wind 25 to 35 kt. Wind waves 4 to 6 ft. 

WED NIGHT
S wind 15 to 25 kt. Wind waves 2 to 4 ft. 

THU
S wind 5 to 15 kt. Wind waves 2 ft or less. 

THU NIGHT
S wind to 10 kt. Wind waves 1 ft or less. 

FRI
S wind to 10 kt. Wind waves 1 ft or less. 

SAT
S wind to 10 kt. Wind waves 1 ft or less.  



PZZ135-221245-
Puget Sound and Hood Canal-
839 PM PDT Mon Sep 21 2020

TONIGHT
NW wind 5 to 15 kt becoming N after midnight. Wind
waves 2 ft or less. A chance of showers. 

TUE
S wind to 10 kt. Wind waves 1 ft or less. Patchy fog in
the morning. A chance of showers in the morning then a slight
chance of showers in the afternoon. 

TUE NIGHT
S wind to 10 kt rising to 15 to 25 kt after
midnight. Wind waves 1 ft or less building to 2 to 4 ft after
midnight. A slight chance of showers in the evening then a chance
of showers after midnight. 

WED
S wind 20 to 30 kt easing to 15 to 25 kt in the afternoon.
Wind waves 3 to 5 ft. 

WED NIGHT
S wind 15 to 25 kt. Wind waves 2 to 4 ft. 

THU
S wind 5 to 15 kt. Wind waves 2 ft or less. 

THU NIGHT
S wind 5 to 15 kt becoming to 10 kt after midnight.
Wind waves 2 ft or less. 

FRI
S wind to 10 kt. Wind waves 1 ft or less. 

SAT
S wind to 10 kt. Wind waves 1 ft or less.  



PZZ110-221245-
Grays Harbor Bar-
839 PM PDT Mon Sep 21 2020

Combined seas 3 to 5 feet building to 6 feet tonight. Bar
conditions light becoming moderate tonight. Maximum ebb currents
will occur around 830PM tonight, as well as 900 AM and 930 PM
Tuesday. The ebb will be strong this evening and again Tuesday
evening.



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