Offshore Forecast
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639
FZPN25 KWBC 171547
OFFPZ5

Offshore Waters Forecast
NWS Ocean Prediction Center Washington DC
747 AM PST Sun Dec 17 2017

Washington and Oregon waters-
Inner waters from  60 nm to 150 nm offshore.
Outer waters from 150 nm to 250 nm offshore.

Seas given as significant wave height, which is the average
height of the highest 1/3 of the waves. Individual waves may be
more than twice the significant wave height.

PZZ898-180430-
747 AM PST Sun Dec 17 2017

.SYNOPSIS FOR WASHINGTON AND OREGON WATERS...A cold front will
move into the waters today and tonight, before becoming
stationary over the area Mon. Low pressure will form along the
front W of the area late Mon and move over the area Mon night
into Tue while intensifying. The low will push a strong cold
front across the waters Tue. Another low will move SE along the
coast Tue night into Wed. Strong high pres will build in from
the W and NW Wed and slowly weaken while moving into the W
waters Wed night through Thu night.

$$

PZZ800-180430-
Cape Flattery to Cape Shoalwater between 60 nm and 150 nm
offshore-
747 AM PST Sun Dec 17 2017

...GALE FORCE WINDS POSSIBLE TUE...

.TODAY...W winds 10 to 20 kt. Seas 10 to 11 ft. Chance of rain.
.TONIGHT...W to NW winds 10 to 20 kt. Seas 8 to 10 ft. Chance of
rain.
.MON...NW winds 10 to 20 kt, becoming variable less than 10 kt.
Seas 8 to 9 ft.
.MON NIGHT...E winds increasing to 15 to 25 kt, then becoming SW
20 to 30 kt. Seas 8 to 12 ft. Rain.
.TUE...SW winds 25 to 35 kt, becoming NW 20 to 30 kt. Seas 10 to
15 ft.
.TUE NIGHT...NW winds 25 to 35 kt. Seas 12 to 18 ft.
.WED...N to NW winds 25 to 35 kt, becoming N 15 to 25 kt. Seas
12 to 19 ft.
.WED NIGHT...N winds 15 to 25 kt, diminishing to 10 to 20 kt.
Seas 8 to 14 ft.
.THU...E to NE winds less than 10 kt, becoming E to SE. Seas
7 to 9 ft.
.THU NIGHT...E to SE winds 5 to 10 kt. Seas 7 to 9 ft.

$$

PZZ900-180430-
Cape Flattery to Cape Shoalwater between 150 nm and 250 nm
offshore-
747 AM PST Sun Dec 17 2017

...GALE FORCE WINDS POSSIBLE TUE NIGHT...

.TODAY...W winds 5 to 15 kt, becoming W to SW 10 to 20 kt. Seas
9 to 12 ft. Chance of rain.
.TONIGHT...W to NW winds 10 to 20 kt. Seas 8 to 10 ft. Chance of
rain.
.MON...NW winds 5 to 15 kt, becoming variable. Seas 8 to 11 ft.
.MON NIGHT...E to NE winds increasing to 15 to 25 kt, then becoming
SW 20 to 30 kt. Seas 9 to 12 ft. Rain.
.TUE...N winds 20 to 30 kt, becoming NW. Seas 10 to 13 ft.
.TUE NIGHT...NW winds 25 to 35 kt. Seas 11 to 19 ft.
.WED...N to NW winds 30 to 35 kt, becoming N 20 to 30 kt. Seas
13 to 19 ft.
.WED NIGHT...N winds 15 to 25 kt. Seas 9 to 14 ft.
.THU...N winds 10 to 20 kt, becoming NE less than 10 kt. Seas
8 to 10 ft.
.THU NIGHT...E to NE winds less than 10 kt, becoming variable.
Seas 7 to 9 ft.

$$

PZZ805-180430-
Cape Shoalwater to Cape Lookout between 60 nm and 150 nm
offshore-
747 AM PST Sun Dec 17 2017

...GALE FORCE WINDS POSSIBLE TUE...

.TODAY and TONIGHT...W to SW winds 10 to 20 kt. Seas 8 to 11 ft.
Chance of rain.
.MON...W to NW winds 5 to 15 kt, becoming variable. Seas 8 to
9 ft.
.MON NIGHT...SW winds increasing to 20 to 30 kt. Seas 8 to 13
ft. Chance of rain.
.TUE...SW winds 25 to 35 kt, becoming W to SW 20 to 30 kt. Seas
11 to 16 ft.
.TUE NIGHT...NW winds 20 to 30 kt, increasing to 25 to 35 kt.
Seas 11 to 18 ft.
.WED...NW winds 25 to 35 kt, becoming N to NW 15 to 25 kt. Seas
14 to 19 ft.
.WED NIGHT...N winds 10 to 20 kt, becoming N to NW 5 to 15 kt.
Seas 9 to 15 ft.
.THU...Variable winds less than 10 kt. Seas 8 to 10 ft.
.THU NIGHT...Variable winds less than 10 kt, becoming S to SE.
Seas 7 to 9 ft.

$$

PZZ905-180430-
Cape Shoalwater to Cape Lookout between 150 nm and 250 nm
offshore-
747 AM PST Sun Dec 17 2017

...GALE WARNING...

.TODAY...W winds 10 to 15 kt, becoming W to SW 10 to 20 kt. Seas
9 to 11 ft. Chance of rain.
.TONIGHT...W winds 10 to 20 kt. Seas 8 to 10 ft. Chance of rain.
.MON...W to NW winds 5 to 15 kt, becoming S to SW 15 to 25 kt.
Seas 8 to 10 ft.
.MON NIGHT...SW winds 20 to 30 kt. Seas 8 to 13 ft. Chance of
rain.
.TUE...SW winds 25 to 35 kt, becoming NW 20 to 30 kt. Seas 11 to
15 ft.
.TUE NIGHT...NW winds 20 to 30 kt, increasing to 25 to 35 kt.
Seas 11 to 18 ft.
.WED...NW winds 25 to 35 kt, becoming N 20 to 25 kt. Seas 14 to
19 ft.
.WED NIGHT...N winds 10 to 20 kt. Seas 10 to 15 ft.
.THU...N winds 5 to 15 kt, diminishing to less than 10 kt. Seas
8 to 10 ft.
.THU NIGHT...N to NW winds less than 10 kt, becoming variable.
Seas 7 to 9 ft.

$$

PZZ810-180430-
Cape Lookout to Florence, OR between 60 nm and 150 nm offshore-
747 AM PST Sun Dec 17 2017

...GALE FORCE WINDS POSSIBLE TUE...

.TODAY and TONIGHT...W winds 5 to 15 kt. Seas 6 to 9 ft.
.MON...W to SW winds 5 to 15 kt. Seas 7 to 8 ft.
.MON NIGHT...SW winds 15 to 25 kt. Seas 7 to 11 ft.
.TUE...S to SW winds increasing to 30 to 40 kt. Seas building to 11
to 16 ft.
.TUE NIGHT and WED...NW winds 20 to 30 kt. Seas 12 to 18 ft.
.WED NIGHT...N winds 10 to 20 kt, becoming N to NW 5 to 10 kt.
Seas 10 to 15 ft.
.THU...NW winds 5 to 10 kt, becoming variable. Seas 8 to 10 ft.
.THU NIGHT...Variable winds less than 10 kt. Seas 7 to 9 ft.

$$

PZZ910-180430-
Cape Lookout to Florence, OR between 150 nm and 250 nm offshore-
747 AM PST Sun Dec 17 2017

...GALE WARNING...

.TODAY...W winds 5 to 15 kt. Seas 8 to 10 ft.
.TONIGHT...W winds 10 to 15 kt. Seas 8 to 9 ft.
.MON...W winds 5 to 15 kt, becoming SW 10 to 20 kt. Seas 7 to
9 ft.
.MON NIGHT...SW winds increasing to 20 to 30 kt. Seas 8 to 13
ft.
.TUE...SW winds 25 to 35 kt, becoming NW 20 to 25 kt. Seas 12 to
15 ft.
.TUE NIGHT...NW winds 20 to 30 kt. Seas 12 to 13 ft.
.WED...N to NW winds 20 to 30 kt. Seas 13 to 17 ft.
.WED NIGHT...N winds 15 to 20 kt, diminishing to 10 to 15 kt.
Seas 10 to 15 ft.
.THU...N winds less than 10 kt. Seas 8 to 10 ft.
.THU NIGHT...N to NW winds less than 10 kt. Seas 7 to 9 ft.

$$

PZZ815-180430-
Florence, OR to Point St. George between 60 nm and 150 nm
offshore-
747 AM PST Sun Dec 17 2017

...GALE FORCE WINDS POSSIBLE TUE...

.TODAY...N to NW winds 5 to 15 kt. Seas 5 to 8 ft.
.TONIGHT...N to NW winds 10 to 20 kt, becoming W to NW 5 to
15 kt. Seas 7 to 8 ft.
.MON...W to SW winds 5 to 15 kt. Seas 6 to 8 ft.
.MON NIGHT...SW winds increasing to 15 to 25 kt. Seas 7 to 11
ft.
.TUE...SW winds 20 to 30 kt, becoming S to SW 30 to 40 kt. Seas
9 to 15 ft.
.TUE NIGHT...NW winds 15 to 25 kt. Seas 11 to 14 ft.
.WED...NW winds 20 to 30 kt. Seas 11 to 16 ft.
.WED NIGHT...N winds 15 to 20 kt, diminishing to 5 to 15 kt.
Seas 11 to 15 ft.
.THU...N winds 5 to 15 kt. Seas 8 to 11 ft.
.THU NIGHT...N winds 5 to 15 kt. Seas 7 to 9 ft.

$$

PZZ915-180430-
Florence, OR to Point St. George between 150 nm and 250 nm
offshore-
747 AM PST Sun Dec 17 2017

...GALE FORCE WINDS POSSIBLE TUE...

.TODAY...W to NW winds 5 to 15 kt. Seas 5 to 9 ft.
.TONIGHT...W winds 5 to 15 kt. Seas 6 to 8 ft.
.MON...W winds 5 to 15 kt, becoming SW. Seas 6 to 9 ft.
.MON NIGHT...SW winds 10 to 20 kt, increasing to 20 to 30 kt.
Seas 7 to 12 ft.
.TUE...SW winds 25 to 35 kt. Seas 10 to 14 ft.
.TUE NIGHT...NW winds 20 to 25 kt. Seas 11 to 13 ft.
.WED...N to NW winds 15 to 25 kt. Seas 11 to 15 ft.
.WED NIGHT...N winds 15 to 20 kt, diminishing to 5 to 15 kt.
Seas 10 to 14 ft.
.THU...N winds less than 10 kt. Seas 8 to 10 ft.
.THU NIGHT...N winds less than 10 kt, becoming variable. Seas
7 to 9 ft.

$$

.Forecaster Achorn. Ocean Prediction Center.



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