Coastal Waters Forecast
Issued by NWS Portland, OR

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FZUS56 KPQR 181651
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Coastal Waters Forecast
National Weather Service Portland OR
851 AM PST Mon Dec 18 2017

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

PZZ200-182315-
851 AM PST Mon Dec 18 2017

.SYNOPSIS FOR SOUTHERN WASHINGTON AND NORTHERN OREGON COAST...
A weak cold front will stall over the northern waters this
morning. A surface low will form along the stalled frontal
boundary and track to the Washington coast. This will bring a
strong cold front with gale force winds Tue. A secondary low
will move through Wed. Then conditions generally ease and
improve for late in the week.

$$

PZZ270-275-182315-
Waters from Cape Shoalwater WA to Cascade Head OR from 10 to
60 NM-Waters from Cascade Head to Florence OR from 10 to 60 NM-
851 AM PST Mon Dec 18 2017

...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY
AFTERNOON...

.TODAY...W wind 5 to 10 kt, backing to S in the afternoon. Wind
waves W 3 ft at 4 seconds, shifting to the S at 4 seconds in
the afternoon. W swell 7 ft at 11 seconds. Rain likely.
.TONIGHT...S wind 20 to 25 kt, rising to 25 to 30 kt after
midnight. Combined seas 11 ft with a dominant period of
15 seconds. Rain.
.TUE...SW wind 30 to 35 kt, easing to 25 kt in the afternoon.
Gusts to 45 kt in the late morning and early afternoon35 kt.
Combined seas 18 ft with a dominant period of 13 seconds. Rain
in the morning, then showers in the afternoon.
.TUE NIGHT...W wind 20 to 25 kt, rising to 25 to 30 kt after
midnight. Wind waves W 8 ft at 8 seconds. W swell 12 ft at
13 seconds. Showers.
.WED...NW wind 20 to 25 kt. Wind waves NW 6 ft at 7 seconds. NW
swell 13 ft at 12 seconds.
.WED NIGHT...N wind 10 to 15 kt, easing to 5 to 10 kt after
midnight. Wind waves N 2 ft at 4 seconds. NW swell 14 ft at
13 seconds.
.THU...N wind 5 to 10 kt. Wind waves 2 ft. NW swell 9 ft.
.FRI...N wind 10 to 15 kt. Wind waves 4 ft. W swell 7 ft.

$$

PZZ250-255-182315-
Coastal waters from Cape Shoalwater WA to Cascade Head OR out
10 NM-Coastal waters from Cascade Head to Florence OR out 10 NM-
851 AM PST Mon Dec 18 2017

...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY
AFTERNOON...

.TODAY...W wind 10 to 15 kt, becoming S 5 to 10 kt in the
afternoon. Wind waves W 3 ft at 4 seconds, shifting to the S
2 ft at 4 seconds in the afternoon. W swell 7 ft at 11 seconds.
Rain likely.
.TONIGHT...S wind 15 to 20 kt, rising to 25 to 30 kt after
midnight. Combined seas 9 ft with a dominant period of
15 seconds. Rain.
.TUE...S wind 30 to 35 kt, becoming SW 25 kt in the afternoon.
Gusts to 45 kt in the late morning and early afternoon35 kt.
Combined seas 18 ft with a dominant period of 13 seconds. Rain
in the morning, then showers in the afternoon.
.TUE NIGHT...W wind 20 to 25 kt. Wind waves W 6 ft at
6 seconds. W swell 12 ft at 13 seconds. Showers.
.WED...NW wind 20 to 25 kt, becoming N 10 to 15 kt in the
afternoon. Wind waves NW 4 ft at 5 seconds. W swell 12 ft at
12 seconds. Chance of showers.
.WED NIGHT...NE wind 5 to 10 kt. Wind waves NE 2 ft at
4 seconds. NW swell 14 ft at 13 seconds.
.THU...E wind to 5 kt. Wind waves 1 ft. NW swell 9 ft.
.FRI...N wind 10 to 15 kt. Wind waves 3 ft. W swell 7 ft.

$$

PZZ210-182315-
Columbia River Bar-
851 AM PST Mon Dec 18 2017

...SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR IN EFFECT
FROM 3 PM THIS AFTERNOON TO 7 PM PST THIS EVENING...
...SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR IN EFFECT
FROM LATE TONIGHT THROUGH TUESDAY MORNING...

.IN THE MAIN CHANNEL...Combined seas 6 to 8 ft. However, seas
will temporarily build to near 11 ft during the strong ebb
around 445 PM today and also build to near 10 ft during the ebb
around 515 AM Tuesday.

$$


weather.gov/portland



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