Coastal Waters Forecast
Issued by NWS Portland, OR

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Coastal Waters Forecast
National Weather Service Portland OR
259 AM PDT Fri Oct 20 2017

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

PZZ200-201630-
259 AM PDT Fri Oct 20 2017

.SYNOPSIS FOR SOUTHERN WASHINGTON AND NORTHERN OREGON COAST...
A trough of low pressure will linger over the waters this
morning then a weak ridge of high pres builds in the afternoon.
Another strong warm frontal system arrives tonight and Saturday
morning with a cold front Saturday afternoon and night. Gales
are expected. Large seas will continue into the weekend, then
subside early next week. High pressure builds through the first
few days of next week.

$$

PZZ250-201630-
Coastal waters from Cape Shoalwater WA to Cascade Head OR out
10 NM-
259 AM PDT Fri Oct 20 2017

...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS IN EFFECT THROUGH
LATE TONIGHT...
...SMALL CRAFT ADVISORY FOR WINDS IN EFFECT UNTIL 2 PM PDT THIS
AFTERNOON...
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH LATE
SATURDAY NIGHT...

.TODAY...W wind 10 to 15 kt with gusts to 25 kt. Wind waves W
2 ft at 4 seconds. W swell 21 ft at 17 seconds, subsiding to
17 ft at 16 seconds. Chance of tstms early in the morning.
Showers.
.TONIGHT...SW wind 10 to 15 kt with gusts to 25 kt, becoming S
20 to 25 kt with gusts to 35 kt after midnight. Wind waves S
5 ft at 6 seconds. W swell 16 ft at 15 seconds, subsiding to
13 ft at 14 seconds after midnight. Showers likely in the
evening, then rain after midnight.
.SAT...S wind 25 to 30 kt with gusts to 40 kt, easing to 20 to
25 kt with gusts to 30 kt in the afternoon. Combined seas 16 ft
with a dominant period of 14 seconds. Rain.
.SAT NIGHT...SW wind 25 to 30 kt with gusts to 35 kt, easing to
20 to 25 kt with gusts to 30 kt after midnight. Combined seas
18 ft with a dominant period of 11 seconds. Rain.
.SUN...SW wind 15 to 20 kt, easing to 10 to 15 kt in the
afternoon. Wind waves SW 4 ft at 5 seconds. W swell 14 ft at
12 seconds. Rain.
.SUN NIGHT...SW wind 5 to 10 kt, backing to S after midnight.
Wind waves S 1 ft at 4 seconds. W swell 12 ft at 12 seconds.
Chance of rain.
.MON...E wind 5 to 10 kt. Wind waves 1 ft. W swell 10 ft.
.TUE...N wind 5 to 10 kt. Wind waves 2 ft. W swell 8 ft.

$$

PZZ270-201630-
Waters from Cape Shoalwater WA to Cascade Head OR from 10 to
60 NM-
259 AM PDT Fri Oct 20 2017

...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS IN EFFECT THROUGH
LATE TONIGHT...
...SMALL CRAFT ADVISORY FOR WINDS IN EFFECT UNTIL 2 PM PDT THIS
AFTERNOON...
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH LATE
SATURDAY NIGHT...

.TODAY...W wind 15 to 20 kt. Gusts to 25 kt. Wind waves W 3 ft
at 6 seconds. W swell 20 ft at 16 seconds, subsiding to 17 ft at
15 seconds in the afternoon. Chance of tstms early in the
morning. Showers.
.TONIGHT...SW wind 15 to 20 kt with gusts to 30 kt, becoming S
25 to 30 kt with gusts to 40 kt after midnight. Combined seas
16 ft with a dominant period of 15 seconds. Showers in the
evening, then rain after midnight.
.SAT...S wind 30 to 35 kt with gusts to 40 kt, becoming SW
25 to 30 kt with gusts to 35 kt in the afternoon. Combined seas
18 ft with a dominant period of 14 seconds, subsiding to 15 ft
with a dominant period of 13 seconds in the afternoon. Rain.
.SAT NIGHT...SW wind 25 to 30 kt. Gusts to 40 kt. Combined seas
19 ft with a dominant period of 11 seconds. Rain.
.SUN...SW wind 15 to 20 kt. Wind waves SW 5 ft at 6 seconds. W
swell 14 ft at 12 seconds. Rain likely.
.SUN NIGHT...SW wind 10 to 15 kt, easing to 5 to 10 kt after
midnight. Wind waves SW 1 ft at 4 seconds. W swell 12 ft at
12 seconds. Chance of rain.
.MON...NE wind 5 to 10 kt. Wind waves 2 ft. W swell 11 ft.
.TUE...N wind 10 to 15 kt. Wind waves 3 ft. W swell 8 ft.

$$

PZZ255-201630-
Coastal waters from Cascade Head to Florence OR out 10 NM-
259 AM PDT Fri Oct 20 2017

...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS IN EFFECT THROUGH
LATE TONIGHT...
...SMALL CRAFT ADVISORY FOR WINDS IN EFFECT UNTIL 2 PM PDT THIS
AFTERNOON...
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH LATE
SATURDAY NIGHT...

.TODAY...W wind 10 to 15 kt with gusts to 25 kt. Wind waves W
3 ft at 5 seconds. W swell 20 ft at 17 seconds, subsiding to
17 ft at 16 seconds in the afternoon. Chance of tstms early in
the morning. Showers.
.TONIGHT...SW wind 15 to 20 kt with gusts to 25 kt, becoming S
25 to 30 kt with gusts to 35 kt after midnight. Combined seas 16
ft with a dominant period of 15 seconds. Showers likely in the
evening, then rain after midnight.
.SAT...S wind 25 to 30 kt. Gusts to 40 kt, becoming 35 kt in
the afternoon. Combined seas 17 ft with a dominant period of
13 seconds. Rain.
.SAT NIGHT...S wind 25 to 30 kt with gusts to 35 kt. Combined
seas 19 ft with a dominant period of 12 seconds. Rain.
.SUN...SW wind 25 to 30 kt, becoming S 20 to 25 kt in the
afternoon. Combined seas 17 ft with a dominant period of
12 seconds. Rain.
.SUN NIGHT...SW wind 10 to 15 kt, becoming S 5 kt after
midnight. Wind waves S 1 ft at 4 seconds. W swell 11 ft at
12 seconds. Chance of rain.
.MON...NE wind 5 to 10 kt. Wind waves 2 ft. W swell 10 ft.
.TUE...N wind 5 to 10 kt. Wind waves 2 ft. W swell 8 ft.

$$

PZZ275-201630-
Waters from Cascade Head to Florence OR from 10 to 60 NM-
259 AM PDT Fri Oct 20 2017

...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS IN EFFECT THROUGH
LATE TONIGHT...
...SMALL CRAFT ADVISORY FOR WINDS IN EFFECT UNTIL 2 PM PDT THIS
AFTERNOON...
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH LATE
SATURDAY NIGHT...

.TODAY...W wind 15 to 20 kt. Gusts to 25 kt early in the
morning. Wind waves W 3 ft at 6 seconds. W swell 19 ft at
16 seconds. Chance of tstms early in the morning. Showers.
.TONIGHT...SW wind 15 to 20 kt with gusts to 35 kt, becoming S
30 to 35 kt with gusts to 45 kt after midnight. Combined seas
18 ft with a dominant period of 15 seconds. Showers in the
evening, then rain after midnight.
.SAT...SW wind 30 to 35 kt. Gusts to 40 kt early in the
morning. Combined seas 18 ft with a dominant period of
13 seconds. Rain.
.SAT NIGHT...SW wind 25 to 30 kt with gusts to 35 kt. Combined
seas 19 ft with a dominant period of 12 seconds. Rain.
.SUN...SW wind 20 to 25 kt. Gusts to 30 kt in the morning.
Combined seas 17 ft with a dominant period of 12 seconds. Rain.
.SUN NIGHT...SW wind 10 kt, becoming S after midnight. Wind
waves S 1 ft at 4 seconds. W swell 11 ft at 12 seconds. Chance
of rain.
.MON...NE wind 10 to 15 kt. Wind waves 3 ft. W swell 11 ft.
.TUE...N wind 10 to 15 kt. Wind waves 3 ft. W swell 8 ft.

$$

PZZ210-201630-
Columbia River Bar-
259 AM PDT Fri Oct 20 2017

...SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR IN EFFECT
THROUGH THIS EVENING...

.IN THE MAIN CHANNEL...Combined seas 20 ft subsiding to 16 ft
Fri afternoon. However, seas 20 feet with breakers during the
ebb around 545 AM early Friday morning and to 20 ft with
breakers during the strong ebb around 600 PM Friday evening.

$$


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