Coastal Waters Forecast
Issued by NWS Portland, OR

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FZUS56 KPQR 172100
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Coastal Waters Forecast
National Weather Service Portland OR
200 PM PDT Sun Aug 17 2025

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

PZZ200-181145-
200 PM PDT Sun Aug 17 2025

.SYNOPSIS FOR THE SOUTHERN WASHINGTON AND NORTHERN OREGON COAST...
Light southwesterly flow through the beginning of the workweek,
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.

$$

PZZ251-181145-
Coastal waters from Cape Shoalwater WA to Cape Falcon OR out
10 NM-
200 PM PDT Sun Aug 17 2025

.THIS AFTERNOON...W wind around 5 kt. Seas 5 to 6 ft. Wave
Detail: W 6 ft at 10 seconds.
.TONIGHT...NW wind around 5 kt, backing to S after midnight. Seas
4 to 6 ft. Wave Detail: W 6 ft at 10 seconds.
.MON...S wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: S 2 ft at
4 seconds and W 5 ft at 9 seconds.
.MON NIGHT...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 around 5 kt, veering to SW in the afternoon. Seas
around 4 ft. Wave Detail: W 4 ft at 9 seconds.
.TUE NIGHT...NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: W
4 ft at 9 seconds.
.WED...N wind 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: N 3 ft at
4 seconds, W 3 ft at 9 seconds and SW 2 ft at 15 seconds.
.WED NIGHT...N wind 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: N
3 ft at 4 seconds, W 3 ft at 8 seconds and SW 2 ft at 15 seconds.
.THU...N wind 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: N 4 ft at
5 seconds, NW 3 ft at 8 seconds and SW 2 ft at 15 seconds.
.THU NIGHT...N wind 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: N
4 ft at 5 seconds, W 2 ft at 10 seconds and SW 2 ft at
15 seconds.

$$

PZZ252-181145-
Coastal waters from Cape Falcon to Cape Foulweather OR out 10 NM-
200 PM PDT Sun Aug 17 2025

.THIS AFTERNOON...W wind around 5 kt. Seas around 6 ft. Wave
Detail: W 6 ft at 10 seconds.
.TONIGHT...NW wind around 5 kt, backing to S after midnight. Seas
5 to 6 ft. Wave Detail: W 6 ft at 10 seconds.
.MON...S wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: S 2 ft at
4 seconds and NW 5 ft at 9 seconds.
.MON NIGHT...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...SE wind around 5 kt, veering to NW in the afternoon. Seas
around 4 ft. Wave Detail: NW 4 ft at 9 seconds.
.TUE NIGHT...N wind 5 to 10 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 in the
afternoon. Seas 3 to 4 ft. Wave Detail: N 4 ft at 5 seconds and
NW 3 ft at 9 seconds.
.WED NIGHT...N wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: N
4 ft at 5 seconds and W 3 ft at 8 seconds.
.THU...N wind 10 to 15 kt, rising to 15 to 20 kt in the
afternoon. Seas 3 to 5 ft. Wave Detail: NW 5 ft at 7 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 5 ft. Wave Detail: N 5 ft at 6 seconds.

$$

PZZ253-181145-
Coastal waters from Cape Foulweather to Florence OR out 10 NM-
200 PM PDT Sun Aug 17 2025

.THIS AFTERNOON...NW wind around 5 kt. Seas 5 to 6 ft. Wave
Detail: NW 6 ft at 10 seconds.
.TONIGHT...NW wind around 5 kt, backing to S after midnight. Seas
5 to 6 ft. Wave Detail: NW 6 ft at 10 seconds.
.MON...S wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: S 2 ft at
4 seconds and NW 5 ft at 9 seconds.
.MON NIGHT...SW wind around 5 kt, backing to SE after midnight.
Seas around 4 ft. Wave Detail: NW 4 ft at 10 seconds. Patchy
dense fog.
.TUE...E wind around 5 kt, backing to NW around 5 kt in the
afternoon. Seas around 4 ft. Wave Detail: NW 4 ft at 9 seconds.
.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. Seas 3 to 4 ft. Wave Detail: N 3 ft at
4 seconds and NW 3 ft at 9 seconds.
.WED NIGHT...N wind 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: N
3 ft at 4 seconds and NW 3 ft at 8 seconds.
.THU...N wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon.
Seas 3 to 5 ft. Wave Detail: NW 4 ft at 7 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 4 ft at 6 seconds and SW
2 ft at 14 seconds.

$$

PZZ271-181145-
Waters from Cape Shoalwater WA to Cape Falcon OR from 10 to 60 NM-
200 PM PDT Sun Aug 17 2025

.THIS AFTERNOON...SW wind around 5 kt. Seas around 6 ft. Wave
Detail: W 6 ft at 10 seconds and SW 2 ft at 14 seconds.
.TONIGHT...W wind around 5 kt, backing to S after midnight. Seas
5 to 6 ft. Wave Detail: S 2 ft at 4 seconds, W 6 ft at 10 seconds
and SW 2 ft at 13 seconds.
.MON...S wind 10 to 15 kt. Seas 5 to 6 ft. Wave Detail: S 2 ft at
4 seconds and W 5 ft at 10 seconds. A slight chance of showers.
.MON NIGHT...S wind around 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. Seas around 4 ft. Wave Detail: W 4 ft
at 9 seconds.
.TUE NIGHT...NW wind 5 to 10 kt. Seas around 4 ft. Wave Detail: W
4 ft at 9 seconds and S 2 ft at 13 seconds.
.WED...N wind 5 to 10 kt. Seas around 4 ft. Wave Detail: N 3 ft
at 4 seconds, NW 3 ft at 9 seconds and SW 2 ft at 15 seconds.
.WED NIGHT...N wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: N
3 ft at 4 seconds, NW 3 ft at 8 seconds and SW 2 ft at
15 seconds.
.THU...N wind 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: N 4 ft at
5 seconds, W 2 ft at 9 seconds and SW 2 ft at 15 seconds.
.THU NIGHT...N wind around 15 kt. Seas 4 to 5 ft. Wave Detail: N
4 ft at 5 seconds, W 2 ft at 10 seconds and SW 2 ft at
15 seconds.

$$

PZZ272-181145-
Waters from Cape Falcon to Cape Foulweather OR from 10 to 60 NM-
200 PM PDT Sun Aug 17 2025

.THIS AFTERNOON...W wind around 5 kt. Seas around 6 ft. Wave
Detail: W 6 ft at 10 seconds and SW 2 ft at 13 seconds.
.TONIGHT...W wind around 5 kt, backing to S after midnight. Seas
5 to 6 ft. Wave Detail: S 2 ft at 4 seconds, NW 6 ft at
10 seconds and SW 2 ft at 13 seconds.
.MON...S wind around 10 kt. Seas around 5 ft. Wave Detail: S 2 ft
at 4 seconds and NW 5 ft at 9 seconds. A slight chance of showers
in the afternoon.
.MON NIGHT...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
around 4 ft. Wave Detail: W 4 ft at 9 seconds.
.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 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: N 3 ft at
4 seconds, NW 3 ft at 9 seconds and SW 2 ft at 15 seconds.
.WED NIGHT...N wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: N
4 ft at 5 seconds, NW 3 ft at 8 seconds and SW 2 ft at
15 seconds.
.THU...N wind 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: N 4 ft at
5 seconds, NW 2 ft at 8 seconds and SW 2 ft at 15 seconds.
.THU NIGHT...N wind 15 to 20 kt. Seas around 5 ft. Wave Detail: N
4 ft at 6 seconds, W 2 ft at 10 seconds and SW 2 ft at
15 seconds.

$$

PZZ273-181145-
Waters from Cape Foulweather to Florence OR from 10 to 60 NM-
200 PM PDT Sun Aug 17 2025

.THIS AFTERNOON...W wind around 5 kt. Seas around 6 ft. Wave
Detail: NW 6 ft at 10 seconds and SW 2 ft at 13 seconds.
.TONIGHT...W wind around 5 kt, backing to S after midnight. Seas
5 to 6 ft. Wave Detail: S 2 ft at 4 seconds, NW 6 ft at
10 seconds and SW 2 ft at 13 seconds.
.MON...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.
.MON NIGHT...S wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: S
2 ft at 4 seconds and NW 5 ft at 10 seconds.
.TUE...S wind around 5 kt, veering to W in the afternoon. Seas
around 4 ft. Wave Detail: NW 4 ft at 9 seconds.
.TUE NIGHT...N wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: 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 around 15 kt. Seas 4 to 5 ft. Wave Detail: N
4 ft at 5 seconds, NW 3 ft at 8 seconds and SW 2 ft at
15 seconds.
.THU...N wind 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: NW 5 ft
at 7 seconds and SW 2 ft at 15 seconds.
.THU NIGHT...N wind 15 to 20 kt. Seas 4 to 6 ft. Wave Detail: N
5 ft at 6 seconds and SW 2 ft at 15 seconds.

$$

PZZ210-181145-
Columbia River Bar-
200 PM PDT Sun Aug 17 2025

.IN THE MAIN CHANNEL...

.GENERAL SEAS...5 to 7 ft subsiding to 3 to 5 ft Monday noon.

.FIRST EBB...Ebb current of 5.11 kt at 1245 AM Monday. Seas 6 ft.

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

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

$$