Coastal Waters Forecast
Issued by NWS Portland, OR

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FZUS56 KPQR 180945
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Coastal Waters Forecast
National Weather Service Portland OR
245 AM PDT Mon Aug 18 2025

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

PZZ200-190015-
245 AM PDT Mon Aug 18 2025

.SYNOPSIS FOR THE SOUTHERN WASHINGTON AND NORTHERN OREGON COAST...
Light southerly flow through Tuesday before surface high pressure
building over the northeastern Pacific sees a shift to northerly
flow by Tuesday night. Chances for diurnal gusts in excess of 20
kt increase Wednesday through Friday afternoons.

$$

PZZ251-190015-
Coastal waters from Cape Shoalwater WA to Cape Falcon OR out
10 NM-
245 AM PDT Mon Aug 18 2025

.TODAY...S wind 5 to 10 kt, rising to 10 to 15 kt this afternoon.
Seas 4 to 5 ft. Wave Detail: S 2 ft at 4 seconds and NW 5 ft at
9 seconds. Areas of dense fog early this morning. Patchy fog late
this morning.
.TONIGHT...S wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: S 2 ft
at 4 seconds and W 5 ft at 10 seconds.
.TUE...S wind 5 to 10 kt, veering to SW in the afternoon. Seas
3 to 4 ft. Wave Detail: W 4 ft at 9 seconds. Patchy dense fog in
the morning. A slight chance of showers.
.TUE NIGHT...NW wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W
4 ft at 9 seconds.
.WED...N wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon.
Seas 3 to 5 ft. Wave Detail: N 3 ft at 5 seconds and NW 4 ft at
15 seconds. Patchy dense fog in the morning.
.WED NIGHT...N wind 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Wave Detail: N 3 ft at 5 seconds and SW 2 ft at 15 seconds.
.THU...N wind 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: N 3 ft at
5 seconds and SW 2 ft at 15 seconds.
.THU NIGHT...N wind 15 to 20 kt, easing to 10 to 15 kt after
midnight. Seas 3 to 4 ft. Wave Detail: N 3 ft at 5 seconds and SW
2 ft at 15 seconds.
.FRI...N wind 10 to 15 kt. Seas around 2 ft or less, then around
3 ft in the afternoon. Wave Detail: N 3 ft at 5 seconds.
.FRI NIGHT...N wind 10 to 15 kt. Seas around 3 ft in the evening,
then around 2 ft or less. Wave Detail: N 3 ft at 5 seconds.

$$

PZZ252-190015-
Coastal waters from Cape Falcon to Cape Foulweather OR out 10 NM-
245 AM PDT Mon Aug 18 2025

.TODAY...S wind 5 to 10 kt. Seas around 5 ft. Wave Detail: S 2 ft
at 4 seconds and NW 5 ft at 9 seconds. Areas of dense fog early
this morning.
.TONIGHT...S wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: W 5 ft
at 10 seconds. Patchy fog in the evening. Areas of dense fog
after midnight.
.TUE...SE wind around 5 kt, veering to W in the afternoon. Seas
3 to 4 ft. Wave Detail: NW 4 ft at 9 seconds. Patchy dense fog.
.TUE NIGHT...N wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NW
4 ft at 9 seconds.
.WED...N wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon.
Seas around 3 ft, building to 4 to 5 ft in the afternoon. Wave
Detail: N 3 ft at 5 seconds and NW 4 ft at 15 seconds.
.WED NIGHT...N wind 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Wave Detail: N 3 ft at 5 seconds.
.THU...N wind 10 to 15 kt, rising to 15 to 20 kt in the
afternoon. Seas 3 to 4 ft. Wave Detail: N 4 ft at 6 seconds and
SW 2 ft at 15 seconds.
.THU NIGHT...N wind 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: N
4 ft at 6 seconds.
.FRI...N wind 10 to 15 kt, rising to 15 to 20 kt in the
afternoon. Seas around 3 ft. Wave Detail: N 3 ft at 4 seconds.
.FRI NIGHT...N wind 15 to 20 kt, easing to 10 to 15 kt after
midnight. Seas around 3 ft. Wave Detail: N 3 ft at 5 seconds.

$$

PZZ253-190015-
Coastal waters from Cape Foulweather to Florence OR out 10 NM-
245 AM PDT Mon Aug 18 2025

.TODAY...S wind 5 to 10 kt, veering to SW late. Seas 4 to 5 ft.
Wave Detail: S 2 ft at 4 seconds and NW 5 ft at 9 seconds. Areas
of dense fog early this morning, then patchy fog late this
morning.
.TONIGHT...S wind around 5 kt. Seas 4 to 5 ft. Wave Detail: W
5 ft at 10 seconds. Patchy fog in the evening, then areas of
dense fog after midnight.
.TUE...SE wind around 5 kt, backing to NW around 5 kt in the
afternoon. Seas 3 to 4 ft. Wave Detail: NW 4 ft at 9 seconds.
Patchy dense fog in the morning.
.TUE NIGHT...N wind around 5 kt. Seas 3 to 4 ft. Wave Detail: NW
4 ft at 9 seconds.
.WED...N wind around 5 kt, rising to 10 to 15 kt with gusts up to
20 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: N 3 ft at
5 seconds and NW 4 ft at 15 seconds.
.WED NIGHT...N wind 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Wave Detail: N 3 ft at 5 seconds.
.THU...N wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon.
Seas 3 to 4 ft. Wave Detail: N 3 ft at 6 seconds and SW 2 ft at
15 seconds.
.THU NIGHT...N wind 15 to 20 kt, easing to 10 to 15 kt after
midnight. Seas 3 to 4 ft. Wave Detail: N 3 ft at 6 seconds and SW
2 ft at 14 seconds.
.FRI...N wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon.
Seas around 3 ft. Wave Detail: N 3 ft at 4 seconds and SW 2 ft at
14 seconds.
.FRI NIGHT...N wind 10 to 15 kt, easing to 5 to 10 kt after
midnight. Seas around 3 ft in the evening, then around 2 ft or
less. Wave Detail: N 3 ft at 4 seconds.

$$

PZZ271-190015-
Waters from Cape Shoalwater WA to Cape Falcon OR from 10 to 60 NM-
245 AM PDT Mon Aug 18 2025

.TODAY...S wind 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: S 2 ft
at 4 seconds, NW 5 ft at 10 seconds and SW 2 ft at 14 seconds.
Areas of dense fog early this morning. Patchy dense fog late this
morning. A slight chance of showers this afternoon.
.TONIGHT...S wind around 10 kt. Seas 5 to 6 ft. Wave Detail: S
2 ft at 4 seconds, W 5 ft at 10 seconds and S 2 ft at 15 seconds.
A slight chance of showers. Patchy dense fog after midnight.
.TUE...S wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: S 2 ft at
4 seconds, NW 4 ft at 9 seconds and S 2 ft at 15 seconds. Patchy
dense fog in the morning. A slight chance of showers.
.TUE NIGHT...NW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: N
2 ft at 4 seconds, W 4 ft at 9 seconds and SW 2 ft at 15 seconds.
.WED...N wind around 10 kt. Seas 4 to 5 ft. Wave Detail: N 2 ft
at 4 seconds, NW 4 ft at 9 seconds and SW 2 ft at 15 seconds.
.WED NIGHT...N wind 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: N
3 ft at 4 seconds and SW 2 ft at 15 seconds.
.THU...N wind 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: N 3 ft at
5 seconds and SW 2 ft at 15 seconds.
.THU NIGHT...N wind around 15 kt. Seas around 4 ft. Wave Detail:
N 3 ft at 5 seconds and SW 2 ft at 15 seconds.
.FRI...N wind around 15 kt. Seas 3 to 4 ft. Wave Detail: N 3 ft
at 5 seconds and SW 2 ft at 15 seconds.
.FRI NIGHT...N wind around 15 kt. Seas 3 to 4 ft. Wave Detail: N
3 ft at 5 seconds and SW 2 ft at 14 seconds.

$$

PZZ272-190015-
Waters from Cape Falcon to Cape Foulweather OR from 10 to 60 NM-
245 AM PDT Mon Aug 18 2025

.TODAY...S wind around 10 kt. Seas 5 to 6 ft. Wave Detail: S 2 ft
at 4 seconds, NW 5 ft at 9 seconds and SW 2 ft at 14 seconds.
Areas of dense fog early this morning.
.TONIGHT...S wind 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: S 2 ft
at 4 seconds, W 5 ft at 10 seconds and S 2 ft at 15 seconds.
Patchy dense fog in the evening. Areas of dense fog after
midnight.
.TUE...S wind 5 to 10 kt, veering to SW in the afternoon. Seas
4 to 5 ft. Wave Detail: S 2 ft at 4 seconds, NW 4 ft at 9 seconds
and SW 2 ft at 15 seconds. Patchy dense fog in the morning. A
slight chance of showers.
.TUE NIGHT...N wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: N
2 ft at 4 seconds, NW 4 ft at 9 seconds and SW 2 ft at
15 seconds.
.WED...N wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: N 3 ft at
5 seconds, NW 4 ft at 9 seconds and SW 2 ft at 15 seconds.
.WED NIGHT...N wind around 15 kt with gusts up to 20 kt. Seas
3 to 4 ft. Wave Detail: N 3 ft at 5 seconds and SW 2 ft at
15 seconds.
.THU...N wind 15 to 20 kt. Seas around 4 ft. Wave Detail: N 4 ft
at 6 seconds and SW 2 ft at 15 seconds.
.THU NIGHT...N wind 15 to 20 kt. Seas around 4 ft. Wave Detail: N
4 ft at 6 seconds and SW 2 ft at 15 seconds.
.FRI...N wind 15 to 20 kt. Seas around 4 ft. Wave Detail: N 3 ft
at 6 seconds and SW 2 ft at 15 seconds.
.FRI NIGHT...N wind 15 to 20 kt. Seas around 4 ft. Wave Detail: N
3 ft at 6 seconds and SW 2 ft at 14 seconds.

$$

PZZ273-190015-
Waters from Cape Foulweather to Florence OR from 10 to 60 NM-
245 AM PDT Mon Aug 18 2025

.TODAY...S wind 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: S 2 ft
at 4 seconds, NW 5 ft at 9 seconds and SW 2 ft at 15 seconds.
Patchy dense fog this morning.
.TONIGHT...S wind 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: S 2 ft
at 4 seconds, W 5 ft at 10 seconds and S 2 ft at 15 seconds.
Patchy fog in the evening. Areas of dense fog after midnight.
.TUE...S wind around 5 kt, veering to W in the afternoon. Seas
4 to 5 ft. Wave Detail: NW 4 ft at 9 seconds and SW 2 ft at
15 seconds. Areas of dense fog in the morning.
.TUE NIGHT...N wind 5 to 10 kt. Seas around 5 ft. Wave Detail: N
2 ft at 4 seconds, NW 4 ft at 9 seconds and SW 2 ft at
15 seconds.
.WED...N wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: N 3 ft at
5 seconds, NW 4 ft at 9 seconds and SW 2 ft at 15 seconds.
.WED NIGHT...N wind 15 to 20 kt. Seas around 4 ft. Wave Detail: N
3 ft at 5 seconds and SW 2 ft at 15 seconds.
.THU...N wind 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: N 4 ft at
7 seconds and SW 2 ft at 15 seconds.
.THU NIGHT...N wind 15 to 20 kt. Seas around 4 ft. Wave Detail: N
4 ft at 7 seconds and SW 2 ft at 15 seconds.
.FRI...N wind 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: N 3 ft at
6 seconds and SW 2 ft at 14 seconds.
.FRI NIGHT...N wind 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: N
3 ft at 6 seconds and SW 2 ft at 14 seconds.

$$

PZZ210-190015-
Columbia River Bar-
245 AM PDT Mon Aug 18 2025

.IN THE MAIN CHANNEL...

.GENERAL SEAS...4 to 5 ft through Tuesday morning.

.FIRST EBB...Ebb current of 5.11 kt at 1245 AM Monday. Seas 4 to 5
 ft.

.SECOND EBB...Ebb current of 2.08 kt at 126 PM Monday. Seas 4 to 5
 ft.

.THIRD EBB...Ebb current of 5.31 kt at 153 AM Tuesday. Seas 4 ft.

$$