OPC High Frequency Voice Marine Forecast (Washington/Oregon)
by Ocean Prediction Center web team
23 Mar 2025 at 9:30pm
FZPN35 KWBC 240329
OFFN35

Marine Weather HF Voice Broadcast
NWS Ocean Prediction Center Washington DC
829 PM PDT Sun Mar 23 2025

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

Conditions given represent the highest within that period.

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.

.SYNOPSIS FOR WASHINGTON AND OREGON WATERS...A cold front over
the NW waters will become mostly stationary tonight into Tue over
this region. High pressure will gradually build over the waters
from the S and persist through Mon night, before a cold front
approaches the area Tue and Tue night. Strengthening low pressure
will approach the waters Wed and Wed night with the cold front
moving E into the waters. The cold front will move inland Wed
night as the low pressure moves N across the outer N waters into
Thu and N of the area Thu night. A high pressure ridge will
gradually build in across the waters later Thu and Thu night,
then persist through Fri night as the low pressure slowly move NW
and away from the area.

Cape Flattery to Cape Lookout

...GALE FORCE WINDS POSSIBLE WED NIGHT...

.TONIGHT...SW winds 10 to 20 kt. Seas 9 to 11 ft.
.MON...S to SW winds 10 to 20 kt. Seas 7 to 10 ft. Chance of
rain with vsby 1 nm or less.
.MON NIGHT...S winds 5 to 15 kt. Seas 7 to 10 ft.
.TUE...S winds 5 to 15 kt. Seas 8 to 9 ft.
.TUE NIGHT...SE winds 10 to 20 kt. Seas 7 to 9 ft.
.WED...S to SE winds 15 to 25 kt. Seas 6 to 10 ft.
.WED NIGHT...S winds 25 to 35 kt. Seas 12 to 19 ft.
.THU...S winds 25 to 35 kt. Seas 14 to 23 ft.
.THU NIGHT...W to SW winds 20 to 30 kt. Seas 14 to 24 ft.
.FRI...W to SW winds 20 to 30 kt. Seas 11 to 18 ft.
.FRI NIGHT...SW winds 15 to 20 kt. Seas 10 to 13 ft.

Cape Lookout to Point St. George

...GALE FORCE WINDS POSSIBLE WED NIGHT...

.TONIGHT...SW winds 5 to 15 kt. Seas 6 to 11 ft.
.MON...S to SW winds 10 to 20 kt. Seas 7 to 10 ft.
.MON NIGHT...S winds 5 to 15 kt. Seas 7 to 10 ft.
.TUE...S winds 5 to 15 kt. Seas 8 to 9 ft.
.TUE NIGHT...S to SE winds 15 to 25 kt. Seas 7 to 9 ft.
.WED...S to SW winds 20 to 30 kt. Seas 7 to 13 ft.
.WED NIGHT...S to SW winds 30 to 40 kt. Seas 15 to 25 ft.
.THU...W to SW winds 30 to 40 kt. Seas 18 to 28 ft.
.THU NIGHT...W to SW winds 25 to 35 kt. Seas 17 to 26 ft.
.FRI...W winds 15 to 25 kt. Seas 12 to 18 ft.
.FRI NIGHT...W to SW winds 10 to 20 kt. Seas 10 to 13 ft.

.Forecaster Rowland. Ocean Prediction Center.





See NWS for further details