Coastal Waters Forecast
Issued by NWS Portland, OR

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FZUS56 KPQR 180511
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Coastal Waters Forecast
National Weather Service Portland OR
911 PM PST Sun Dec 17 2017

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

PZZ200-181215-
911 PM PST Sun Dec 17 2017

.SYNOPSIS FOR SOUTHERN WASHINGTON AND NORTHERN OREGON COAST...
A weak cold front will move through the waters overnight. Low
pressure dropping south from the Gulf of Alaska Mon and Tue will
result in a surface low forming along the stalled frontal
boundary. 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.

$$

PZZ250-270-181215-
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-
911 PM PST Sun Dec 17 2017

...SMALL CRAFT ADVISORY FOR WINDS IN EFFECT UNTIL 4 AM PST
MONDAY...
...GALE WATCH IN EFFECT FROM LATE MONDAY NIGHT THROUGH TUESDAY
AFTERNOON...

.TONIGHT...SW wind 15 to 20 kt with gusts to 25 kt, becoming W
10 to 15 kt after midnight. Wind waves SW 3 ft at 5 seconds. W
swell 8 ft at 11 seconds. Rain likely.
.MON...NW wind 5 to 10 kt, becoming SE 10 to 15 kt in the
afternoon. Wind waves W 2 ft at 4 seconds, shifting to the SE
4 ft at 4 seconds in the afternoon. W swell 7 ft at 11 seconds.
Rain likely.
.MON NIGHT...S wind 20 to 25 kt. Wind waves S 7 ft at
6 seconds. W swell 9 ft at 15 seconds. Rain.
.TUE...S wind 30 to 35 kt with gusts 40 to 45 kt. Combined seas
15 ft with a dominant period of 15 seconds. Rain.
.TUE NIGHT...W wind 20 to 25 kt. Wind waves W 7 ft at
8 seconds. W swell 14 ft at 14 seconds, subsiding to 11 ft at
14 seconds after midnight. Showers likely.
.WED...NW wind 20 to 25 kt with gusts 30 to 35 kt. Combined
seas 15 ft. Chance of showers.
.WED NIGHT...N wind 5 to 10 kt. Wind waves 2 ft. NW swell
13 ft.
.THU...NW wind 5 to 10 kt. Wind waves 2 ft. NW swell 9 ft.
.FRI...N wind 10 to 15 kt. Wind waves 3 ft. NW swell 8 ft.

$$

PZZ255-275-181215-
Coastal waters from Cascade Head to Florence OR out 10 NM-
Waters from Cascade Head to Florence OR from 10 to 60 NM-
911 PM PST Sun Dec 17 2017

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

.TONIGHT...SW wind 10 to 15 kt. Wind waves SW 3 ft at
4 seconds. W swell 8 ft at 11 seconds. Chance of rain late in
the evening.
.MON...SW wind 5 to 10 kt, rising to 10 to 15 kt in the
afternoon. Wind waves SW 3 ft at 4 seconds. W swell 7 ft at
11 seconds. Chance of rain.
.MON NIGHT...S wind 15 to 20 kt, rising to 20 to 25 kt after
midnight. Wind waves S 6 ft at 6 seconds. NW swell 9 ft at
15 seconds. Rain.
.TUE...S wind 30 to 35 kt with gusts 40 to 45 kt. Combined seas
16 ft with a dominant period of 15 seconds. Rain.
.TUE NIGHT...W wind 20 to 25 kt. Wind waves W 7 ft at
7 seconds. W swell 14 ft at 14 seconds, subsiding to 11 ft at
14 seconds after midnight. Rain.
.WED...NW wind 20 to 25 kt. Wind waves 7 ft. W swell 11 ft.
Chance of showers.
.WED NIGHT...N wind 10 to 15 kt. Wind waves 3 ft. NW swell
13 ft.
.THU...NE wind 5 to 10 kt. Wind waves 2 ft. NW swell 9 ft.
.FRI...N wind 10 to 15 kt. Wind waves 3 ft. NW swell 7 ft.

$$

PZZ210-181215-
Columbia River Bar-
911 PM PST Sun Dec 17 2017

...SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR IN EFFECT
FROM 2 AM TO 6 AM PST MONDAY...
...SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR IN EFFECT
FROM MONDAY AFTERNOON THROUGH MONDAY EVENING...

.IN THE MAIN CHANNEL...Combined seas 6 to 8 ft. However, seas
will temporarily build to near 10 ft during the ebb around 445
AM Monday morning, and near 10 ft with breakers likely during
the strong ebb around 445 PM Monday afternoon.

$$


weather.gov/portland



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