Coastal Waters Forecast
Issued by NWS Seattle/Tacoma, WA

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FZUS56 KSEW 181052
CWFSEW

Coastal Waters Forecast for Washington
National Weather Service Seattle WA
252 AM PST Thu Jan 18 2018

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

PZZ100-182000-
252 AM PST Thu Jan 18 2018

.Synopsis for the northern and central Washington coastal and
inland waters...A deep and expansive low centered near 51N 134W
will fill as it moves slowly east toward the northern tip of
Vancouver Island Friday night. Tight pressure gradients associated
with this low will give gales to the coastal waters and small
craft advisory conditions to the inland waters through this
evening. Combined seas 30 to 35 feet will affect the coastal
waters through this evening. Additional fronts will reach the
waters later Saturday through early next week.

$$

PZZ150-182000-
Coastal Waters From Cape Flattery To James Island Out 10 Nm-
252 AM PST Thu Jan 18 2018

...GALE WARNING IN EFFECT THROUGH THIS EVENING...

.TODAY...S wind 25 to 40 kt becoming SW in the afternoon.
Combined seas 30 to 33 ft with a dominant period of 18 seconds.
Showers and a slight chance of tstms.
.TONIGHT...SW wind 25 to 35 kt becoming S 25 to 30 kt after
midnight. Combined seas 28 to 31 ft with a dominant period of
17 seconds subsiding to 23 to 25 ft with a dominant period of
16 seconds after midnight. Showers. A slight chance of tstms in
the evening.
.FRI...S wind 20 to 30 kt. Wind waves 4 to 6 ft. W swell 21 ft at
15 seconds subsiding to 18 ft at 14 seconds in the afternoon.
Showers.
.FRI NIGHT...SW wind 15 to 25 kt becoming W after midnight. Wind
waves 3 to 5 ft. W swell 17 ft at 14 seconds.
.SAT...W wind 15 to 25 kt becoming S 10 to 20 kt in the
afternoon. Wind waves 2 to 4 ft. W swell 18 ft at 14 seconds
subsiding to 14 ft at 13 seconds in the afternoon.
.SAT NIGHT...S wind 20 to 30 kt rising to 30 to 40 kt after
midnight. Combined seas 11 to 14 ft with a dominant period of
12 seconds.
.SUN...SW wind 35 to 45 kt easing to 15 to 25 kt. Combined seas
16 to 19 ft.
.MON...W wind 15 to 25 kt becoming SW 10 to 20 kt. Wind waves
2 to 4 ft. W swell 16 ft subsiding to 14 ft.

$$

PZZ153-182000-
Coastal Waters From James Island To Point Grenville Out 10 Nm-
252 AM PST Thu Jan 18 2018

...GALE WARNING IN EFFECT THROUGH THIS EVENING...

.TODAY...S wind 25 to 40 kt becoming SW in the afternoon.
Combined seas 30 to 33 ft with a dominant period of 19 seconds.
Showers and a slight chance of tstms.
.TONIGHT...S wind 25 to 35 kt easing to 20 to 30 kt late. Wind
waves 8 to 10 ft. W swell 29 ft at 17 seconds subsiding to 24 ft
at 16 seconds after midnight. Showers. A slight chance of tstms in
the evening.
.FRI...S wind 15 to 25 kt rising to 20 to 30 kt in the afternoon.
Wind waves 4 to 6 ft. W swell 21 ft at 15 seconds subsiding to
18 ft at 14 seconds in the afternoon. Showers.
.FRI NIGHT...SW wind 15 to 25 kt becoming W after midnight. Wind
waves 3 to 5 ft. W swell 17 ft at 14 seconds.
.SAT...W wind 15 to 25 kt becoming S 10 to 20 kt in the
afternoon. Wind waves 2 to 4 ft. W swell 17 ft at 14 seconds
subsiding to 14 ft at 13 seconds in the afternoon.
.SAT NIGHT...S wind 15 to 25 kt rising to 25 to 35 kt after
midnight. Combined seas 11 to 14 ft with a dominant period of
12 seconds.
.SUN...S wind 35 to 45 kt becoming SW 15 to 25 kt. Combined seas
17 to 20 ft subsiding to 16 to 17 ft.
.MON...W wind 10 to 20 kt becoming S 5 to 15 kt. Wind waves 1 to
3 ft. W swell 14 ft.

$$

PZZ156-182000-
Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm-
252 AM PST Thu Jan 18 2018

...GALE WARNING IN EFFECT THROUGH THIS EVENING...

.TODAY...SW wind 25 to 35 kt. Combined seas 30 to 33 ft with a
dominant period of 19 seconds. Showers and a slight chance of
tstms.
.TONIGHT...SW wind 25 to 35 kt becoming S 20 to 30 kt after
midnight. Combined seas 27 to 30 ft with a dominant period of
17 seconds subsiding to 23 to 25 ft with a dominant period of
16 seconds after midnight. Showers. A slight chance of tstms in
the evening.
.FRI...SW wind 15 to 25 kt. Wind waves 3 to 5 ft. W swell 20 ft
at 15 seconds subsiding to 18 ft at 14 seconds in the afternoon.
Showers.
.FRI NIGHT...SW wind 15 to 25 kt becoming W after midnight. Wind
waves 3 to 5 ft. W swell 16 ft at 14 seconds building to 18 ft at
14 seconds after midnight.
.SAT...W wind 10 to 20 kt becoming SW 15 to 25 kt in the
afternoon. Wind waves 2 to 4 ft. W swell 17 ft at 14 seconds
subsiding to 14 ft at 13 seconds in the afternoon.
.SAT NIGHT...S wind 15 to 25 kt rising to 25 to 35 kt after
midnight. Combined seas 11 to 14 ft with a dominant period of
12 seconds.
.SUN...S wind 25 to 35 kt becoming W 15 to 25 kt. Combined seas
16 to 19 ft.
.MON...W wind 15 to 25 kt becoming SW 5 to 15 kt. Wind waves 2 to
4 ft. W swell 13 ft.

$$

PZZ170-173-176-182000-
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-
252 AM PST Thu Jan 18 2018

...GALE WARNING IN EFFECT THROUGH THIS EVENING...

.TODAY...SW wind 35 to 40 kt. Combined seas 35 to 38 ft with a
dominant period of 19 seconds. Showers and a slight chance of
tstms.
.TONIGHT...SW wind 25 to 35 kt. Combined seas 30 to 33 ft with a
dominant period of 17 seconds subsiding to 25 to 28 ft with a
dominant period of 16 seconds after midnight. Showers. A slight
chance of tstms in the evening.
.FRI...SW wind 20 to 30 kt. Wind waves 6 to 8 ft subsiding to 4
to 6 ft in the afternoon. W swell 22 ft at 15 seconds subsiding to
20 ft at 14 seconds in the afternoon. Showers.
.FRI NIGHT...W wind 20 to 30 kt. Wind waves 5 to 7 ft. W swell 20
ft at 14 seconds.
.SAT...W wind 15 to 25 kt becoming SW in the afternoon. Wind
waves 3 to 5 ft. W swell 18 ft at 14 seconds subsiding to 15 ft
at 13 seconds in the afternoon.
.SAT NIGHT...S wind 25 to 30 kt rising to 35 to 40 kt after
midnight. Combined seas 13 to 15 ft with a dominant period of
12 seconds.
.SUN...SW wind 35 to 45 kt becoming W 20 to 25 kt. Combined seas
18 to 21 ft.
.MON...W wind 15 to 25 kt becoming SW 10 to 20 kt. Wind waves
2 to 4 ft. W swell 18 ft subsiding to 14 ft.

$$

PZZ130-182000-
West Entrance U.S. Waters Strait Of Juan De Fuca-
252 AM PST Thu Jan 18 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.TODAY...S wind 20 to 30 kt becoming SW in the afternoon.
Wind waves 3 to 5 feet. SW swell 25 to 27 ft with a dominant
period of 19 seconds. Showers. A slight chance of morning tstms.
.TONIGHT...S wind 20 to 30 kt. Wind waves 3 to 5 ft. SW swell
26 ft at 17 seconds subsiding to 22 ft at 16 seconds after
midnight. Showers.
.FRI...SE wind 10 to 20 kt becoming S 15 to 25 kt in the
afternoon. Wind waves 2 to 4 ft. W swell 19 ft at 15 seconds
subsiding to 16 ft at 14 seconds in the afternoon. Showers.
.FRI NIGHT...SW wind 15 to 25 kt. Wind waves 2 to 4 ft. W swell
17 ft at 14 seconds.
.SAT...W wind 15 to 25 kt becoming SW 10 to 20 kt in the
afternoon. Wind waves 2 to 4 ft. W swell 16 ft at 14 seconds
subsiding to 13 ft at 13 seconds in the afternoon.
.SAT NIGHT...SE wind 5 to 15 kt rising to 15 to 25 kt after
midnight. Wind waves 2 ft or less building to 2 to 4 ft after
midnight. W swell 10 ft at 12 seconds.
.SUN...S wind 15 to 25 kt becoming SW 10 to 20 kt. Wind waves
2 to 4 ft. W swell 15 ft.
.MON...W wind 10 to 20 kt becoming S 5 to 15 kt. Wind waves 1 to
3 ft. W swell 14 ft.

$$

PZZ131-182000-
Central U.S. Waters Strait Of Juan De Fuca-
252 AM PST Thu Jan 18 2018

.TODAY...SE wind 10 to 20 kt. Wind waves 1 to 3 ft. Showers. A
slight chance of tstms in the morning.
.TONIGHT...SE wind 10 to 20 kt. Wind waves 1 to 3 ft. Showers in
the evening then a chance of showers after midnight.
.FRI...SE wind to 10 kt becoming E in the afternoon. Wind waves
1 ft. A chance of showers in the morning then showers in the
afternoon.
.FRI NIGHT...Variable wind 5 to 15 kt becoming SW 10 to 20 kt
after midnight. Wind waves 1 to 3 ft.
.SAT...W wind 15 to 25 kt easing to 10 to 20 kt in the afternoon.
Wind waves 2 to 4 ft.
.SAT NIGHT...E wind to 10 kt rising to 20 to 30 kt after
midnight. Wind waves 1 ft or less building to 3 to 5 ft after
midnight.
.SUN...E wind 20 to 30 kt becoming SW 10 to 20 kt. Wind waves
3 to 5 ft subsiding to 1 to 3 ft.
.MON...SW wind 15 to 25 kt easing to variable to 10 kt. Wind
waves 2 to 4 ft subsiding to 1 ft or less.

$$

PZZ132-182000-
East Entrance U.S. Waters Strait Of Juan De Fuca-
252 AM PST Thu Jan 18 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.TODAY...SE wind 15 to 25 kt. Wind waves 2 to 4 ft. Showers. A
slight chance of tstms in the morning.
.TONIGHT...SE wind 20 to 30 kt. Wind waves 3 to 5 ft. A chance of
showers.
.FRI...SE wind 15 to 25 kt rising to 20 to 30 kt in the
afternoon. Wind waves 3 to 5 ft. A chance of showers.
.FRI NIGHT...SE wind 15 to 25 kt easing to 10 to 20 kt after
midnight. Wind waves 2 to 4 ft.
.SAT...SW wind 15 to 25 kt. Wind waves 2 to 4 ft.
.SAT NIGHT...SE wind 10 to 20 kt rising to 25 to 35 kt after
midnight. Wind waves 1 to 3 ft building to 4 to 6 ft after
midnight.
.SUN...SE wind 25 to 35 kt becoming S to 10 kt. Wind waves 4 to
6 ft subsiding to 1 ft or less.
.MON...SW wind 10 to 20 kt becoming S 5 to 15 kt. Wind waves 1 to
3 ft.

$$

PZZ134-182000-
Admiralty Inlet-
252 AM PST Thu Jan 18 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.TODAY...S wind 15 to 25 kt. Wind waves 2 to 4 ft. Showers likely
and a slight chance of tstms in the morning then a chance of
showers in the afternoon.
.TONIGHT...S wind 15 to 25 kt rising to 20 to 30 kt after
midnight. Wind waves 3 to 5 ft. A chance of showers.
.FRI...S wind 15 to 25 kt. Wind waves 2 to 4 ft. A chance of
showers in the morning then showers likely in the afternoon.
.FRI NIGHT...S wind 15 to 25 kt. Wind waves 2 to 4 ft.
.SAT...S wind to 10 kt. Wind waves 1 ft or less.
.SAT NIGHT...S wind 10 to 20 kt becoming SE 15 to 25 kt after
midnight. Wind waves 2 to 4 ft.
.SUN...SE wind 15 to 25 kt becoming S 5 to 15 kt. Wind waves 2 to
4 ft subsiding to 2 ft or less.
.MON...S wind 5 to 15 kt. Wind waves 2 ft or less.


$$

PZZ133-182000-
Northern Inland Waters Including The San Juan Islands-
252 AM PST Thu Jan 18 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.TODAY...S wind 15 to 25 kt rising to 20 to 30 kt in the
afternoon. Wind waves 3 to 5 ft. Showers likely and a slight
chance of tstms in the morning then a chance of showers in the
afternoon.
.TONIGHT...SE wind 20 to 30 kt. Wind waves 3 to 5 ft. Showers
likely in the evening then a chance of showers after midnight.
.FRI...SE wind 15 to 25 kt. Wind waves 2 to 4 ft. A chance of
showers in the morning then showers likely in the afternoon.
.FRI NIGHT...S wind 15 to 25 kt. Wind waves 2 to 4 ft.
.SAT...SW wind 15 to 25 kt. Wind waves 2 to 4 ft.
.SAT NIGHT...SE wind 10 to 20 kt rising to 25 to 35 kt after
midnight. Wind waves 1 to 3 ft building to 4 to 6 ft after
midnight.
.SUN...SE wind 25 to 35 kt becoming S 10 to 20 kt. Wind waves
4 to 6 ft subsiding to 1 to 3 ft.
.MON...SW wind 10 to 20 kt becoming S 5 to 15 kt. Wind waves 1 to
3 ft.

$$

PZZ135-182000-
Puget Sound and Hood Canal-
252 AM PST Thu Jan 18 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.TODAY...S wind 15 to 25 kt. Wind waves 2 to 4 ft. Showers and a
slight chance of tstms in the morning then showers likely in the
afternoon.
.TONIGHT...S wind 15 to 25 kt. Wind waves 2 to 4 ft. Showers
likely.
.FRI...S wind 15 to 25 kt. Wind waves 2 to 4 ft. A chance of
showers in the morning then showers likely in the afternoon.
.FRI NIGHT...S wind 15 to 25 kt. Wind waves 2 to 4 ft.
.SAT...S wind 15 to 25 kt easing to 10 to 20 kt in the afternoon.
Wind waves 2 to 4 ft.
.SAT NIGHT...S wind 10 to 20 kt rising to 15 to 25 kt after
midnight. Wind waves 2 to 4 ft.
.SUN...S wind 15 to 25 kt easing to 10 to 20 kt. Wind waves 2 to
4 ft.
.MON...SW wind 10 to 20 kt becoming S to 10 kt. Wind waves 1 to
3 ft subsiding to 1 ft or less.

$$

PZZ110-182000-
Grays Harbor Bar-
252 AM PST Thu Jan 18 2018

...SMALL CRAFT ADVISORY FOR ROUGH BAR IN EFFECT THROUGH LATE
TONIGHT...

Combined seas 20 to 25 feet with breakers covering the bar. Bar
conditions severe. Maximum ebb currents will occur around 515 AM
and 515 PM today. The afternoon ebb will be strong.

$$

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