Coastal Waters Forecast
Issued by NWS Portland, OR

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FZUS56 KPQR 220323
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Coastal Waters Forecast
National Weather Service Portland OR
823 PM PDT Mon Aug 21 2017

Coastal Waters from Cape Shoalwater Washington to Florence Oregon
and westward 60 NM

PZZ200-221030-
823 PM PDT Mon Aug 21 2017

.SYNOPSIS FOR SOUTHERN WASHINGTON AND NORTHERN OREGON COAST...
High pressure persists over the NE Pacific as a thermal trough
remains across the southern Oregon coast. The high pressure
weakens Wednesday as a decaying front moves across the waters,
then rapidly rebuilds behind the front Wednesday night. The
thermal trough strengthens Friday and Saturday.

$$

PZZ250-270-221030-
Coastal waters from Cape Shoalwater WA to Cascade Head OR out
10 NM-
Waters from Cape Shoalwater WA to Cascade Head OR from 10 to
60 NM-
823 PM PDT Mon Aug 21 2017

.TONIGHT...N wind 10 to 15 kt with gusts to 20 kt. Local gusts
to 25 kt this evening. Wind waves N 3 ft at 5 seconds. W swell
5 ft at 11 seconds.
.TUE...NW wind 10 kt with gusts to 15 kt. Wind waves NW 2 ft at
4 seconds. W swell 5 ft at 12 seconds.
.TUE NIGHT...NW wind 5 to 10 kt. Gusts to 15 kt in the evening.
Wind waves NW 2 ft at 4 seconds. W swell 4 ft at 12 seconds.
.WED...SW wind to 5 kt, becoming NW in the afternoon. Wind
waves W 1 ft at 4 seconds. W swell 4 ft at 11 seconds.
.WED NIGHT...NW wind 10 to 15 kt. Wind waves NW 3 ft at
4 seconds. W swell 5 ft at 11 seconds.
.THU...NW wind 5 to 10 kt with gusts to 15 kt. Wind waves 2 ft.
W swell 6 ft.
.THU NIGHT...NW wind 10 to 15 kt. Wind waves 3 ft. NW swell
5 ft.
.FRI...N wind 20 to 25 kt. Wind waves 5 ft. NW swell 5 ft.
.SAT...N wind 15 to 20 kt. Wind waves 5 ft. W swell 4 ft.

$$

PZZ255-275-221030-
Coastal waters from Cascade Head to Florence OR out 10 NM-
Waters from Cascade Head to Florence OR from 10 to 60 NM-
823 PM PDT Mon Aug 21 2017

.TONIGHT...N wind 10 to 15 kt with gusts to 20 kt. Wind waves N
3 ft at 6 seconds. NW swell 5 ft at 11 seconds.
.TUE...N wind 10 to 15 kt. Wind waves N 3 ft at 4 seconds. W
swell 5 ft at 12 seconds.
.TUE NIGHT...N wind 10 to 15 kt. Wind waves N 3 ft at
4 seconds. W swell 4 ft at 12 seconds.
.WED...NW wind 5 to 10 kt with gusts to 15 kt. Wind waves NW
1 ft at 4 seconds. W swell 4 ft at 11 seconds.
.WED NIGHT...N wind 10 to 15 kt. Gusts to 20 kt after midnight.
Wind waves NW 3 ft at 5 seconds. W swell 4 ft at 11 seconds.
.THU...N wind 10 to 15 kt with gusts to 20 kt. Wind waves 3 ft.
W swell 7 ft.
.THU NIGHT...N wind 15 to 20 kt with gusts to 25 kt. Wind waves
5 ft. NW swell 6 ft.
.FRI...N wind 20 to 25 kt. Wind waves 6 ft. NW swell 6 ft.
.SAT...N wind 20 to 25 kt. Wind waves 6 ft. W swell 5 ft.

$$

PZZ210-221030-
Columbia River Bar-
823 PM PDT Mon Aug 21 2017

...SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR IN EFFECT
FROM 4 AM TO 8 AM PDT TUESDAY...

.IN THE MAIN CHANNEL...Combined seas 3 to 5 ft through Tuesday.
However, seas will temporarily build to around 7 ft with breakers
likely during the very strong ebb around 545 AM Tuesday morning.
and to 6 ft during the ebb around 615 PM Tuesday evening.

$$


weather.gov/portland



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