Coastal Waters Forecast
Issued by NWS Portland, OR
Issued by NWS Portland, OR
627 FZUS56 KPQR 180825 CWFPQR Coastal Waters Forecast National Weather Service Portland OR 125 AM PDT Tue Aug 18 2026 Coastal waters from Cape Shoalwater Washington to Florence Oregon and westward 60 NM PZZ200-182315- 125 AM PDT Tue Aug 18 2026 .SYNOPSIS FOR THE SOUTHERN WASHINGTON AND NORTHERN OREGON COAST... High pressure offshore will maintain north to northwest winds across the coastal waters through Thursday. Benign conditions are expected this week with winds around 15 kt or less and seas of 3 to 6 ft. By Friday to Saturday, weak low pressure will turn winds more southerly to southwesterly. High pressure re-builds on Sunday, returning northerly winds. $$ PZZ251-182315- Coastal waters from Cape Shoalwater WA to Cape Falcon OR out 10 NM- 125 AM PDT Tue Aug 18 2026 .TODAY...W wind around 5 kt, veering to NW late. Seas around 4 ft. Wave Detail: W 3 ft at 14 seconds and SW 2 ft at 14 seconds. Patchy dense fog early this morning. .TONIGHT...NW wind 5 to 10 kt, easing to around 5 kt after midnight. Seas 4 to 5 ft. Wave Detail: W 4 ft at 13 seconds and SW 2 ft at 14 seconds. Patchy dense fog after midnight. .WED...NW wind around 5 kt. Seas 4 to 6 ft. Wave Detail: W 6 ft at 12 seconds and SW 2 ft at 14 seconds. .WED NIGHT...NW wind around 5 kt. Seas 4 to 5 ft. Wave Detail: W 5 ft at 12 seconds and SW 2 ft at 14 seconds. .THU...N wind around 5 kt. Seas 4 to 5 ft. Wave Detail: W 5 ft at 11 seconds and SW 2 ft at 15 seconds. .THU NIGHT...NW wind around 5 kt, backing to W after midnight. Seas 4 to 5 ft. Wave Detail: W 5 ft at 11 seconds and SW 2 ft at 15 seconds. .FRI...S wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: S 2 ft at 4 seconds, W 4 ft at 10 seconds and SW 2 ft at 15 seconds. .FRI NIGHT...S wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: S 2 ft at 4 seconds, W 5 ft at 9 seconds and SW 2 ft at 14 seconds. .SAT...SW wind 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: S 2 ft at 4 seconds and W 5 ft at 9 seconds. .SAT NIGHT...W wind 5 to 10 kt, veering to NW after midnight. Seas 4 to 5 ft. Wave Detail: NW 5 ft at 9 seconds. $$ PZZ252-182315- Coastal waters from Cape Falcon to Cape Foulweather OR out 10 NM- 125 AM PDT Tue Aug 18 2026 .TODAY...N wind around 5 kt, backing to NW this afternoon. Seas 3 to 4 ft. Wave Detail: NW 2 ft at 4 seconds, W 3 ft at 12 seconds and SW 2 ft at 14 seconds. Patchy dense fog this morning. .TONIGHT...N wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: N 2 ft at 4 seconds, W 4 ft at 13 seconds and SW 2 ft at 14 seconds. .WED...N wind around 5 kt, rising to 5 to 10 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: N 2 ft at 4 seconds, W 5 ft at 12 seconds and SW 2 ft at 14 seconds. .WED NIGHT...N wind 5 to 10 kt, easing to around 5 kt after midnight. Seas 4 to 6 ft. Wave Detail: N 2 ft at 4 seconds, NW 5 ft at 12 seconds and SW 2 ft at 14 seconds. .THU...N wind around 5 kt. Seas 4 to 5 ft. Wave Detail: NW 5 ft at 11 seconds and SW 2 ft at 15 seconds. .THU NIGHT...N wind around 5 kt, veering to SE after midnight. Seas 4 to 5 ft. Wave Detail: NW 5 ft at 11 seconds and SW 2 ft at 15 seconds. .FRI...S wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at 10 seconds. .FRI NIGHT...S wind 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: S 2 ft at 4 seconds and W 4 ft at 10 seconds. .SAT...S wind 5 to 10 kt, veering to SW in the afternoon. Seas 4 to 5 ft. Wave Detail: W 4 ft at 10 seconds. .SAT NIGHT...N wind around 5 kt. Seas around 4 ft. Wave Detail: NW 4 ft at 9 seconds. $$ PZZ253-182315- Coastal waters from Cape Foulweather to Florence OR out 10 NM- 125 AM PDT Tue Aug 18 2026 .TODAY...N wind 5 to 10 kt, rising to 10 to 15 kt with gusts up to 20 kt late. Seas 3 to 4 ft. Wave Detail: N 2 ft at 4 seconds, W 3 ft at 11 seconds and SW 2 ft at 14 seconds. .TONIGHT...N wind 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. Wave Detail: N 2 ft at 4 seconds, W 4 ft at 13 seconds and SW 2 ft at 14 seconds. .WED...N wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Seas 4 to 5 ft. Wave Detail: N 2 ft at 4 seconds, W 4 ft at 12 seconds and SW 2 ft at 14 seconds. .WED NIGHT...N wind 10 to 15 kt with gusts up to 20 kt, easing to 5 to 10 kt after midnight. Seas 4 to 5 ft. Wave Detail: N 2 ft at 4 seconds and W 4 ft at 12 seconds. .THU...N wind around 5 kt. Seas 4 to 5 ft. Wave Detail: W 4 ft at 11 seconds and SW 2 ft at 15 seconds. .THU NIGHT...N wind around 5 kt, backing to W after midnight. Seas 4 to 5 ft. Wave Detail: W 4 ft at 11 seconds and SW 2 ft at 15 seconds. .FRI...SW wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at 10 seconds. .FRI NIGHT...SW wind around 5 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at 10 seconds. .SAT...S wind around 5 kt, veering to W around 5 kt in the afternoon. Seas around 4 ft. Wave Detail: W 4 ft at 9 seconds. .SAT NIGHT...N wind 5 to 10 kt. Seas around 4 ft. Wave Detail: NW 4 ft at 9 seconds. $$ PZZ271-182315- Waters from Cape Shoalwater WA to Cape Falcon OR from 10 to 60 NM- 125 AM PDT Tue Aug 18 2026 .TODAY...NW wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: NW 2 ft at 4 seconds, W 4 ft at 14 seconds and SW 2 ft at 14 seconds. .TONIGHT...NW wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Seas around 5 ft. Wave Detail: NW 2 ft at 4 seconds, W 4 ft at 13 seconds and SW 2 ft at 14 seconds. .WED...NW wind 5 to 10 kt. Seas 5 to 7 ft. Wave Detail: NW 2 ft at 4 seconds, W 6 ft at 12 seconds and SW 2 ft at 14 seconds. .WED NIGHT...N wind 10 to 15 kt. Seas 5 to 6 ft. Wave Detail: NW 2 ft at 4 seconds, W 5 ft at 12 seconds and SW 2 ft at 15 seconds. .THU...N wind 5 to 10 kt. Seas 5 to 7 ft. Wave Detail: N 2 ft at 4 seconds, NW 5 ft at 11 seconds and SW 2 ft at 15 seconds. .THU NIGHT...NW wind 5 to 10 kt. Seas around 5 ft. Wave Detail: NW 5 ft at 11 seconds and SW 2 ft at 15 seconds. .FRI...SW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W 4 ft at 10 seconds and SW 2 ft at 15 seconds. .FRI NIGHT...SW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: SW 2 ft at 4 seconds, W 4 ft at 10 seconds and SW 2 ft at 14 seconds. .SAT...W wind 5 to 10 kt. Seas around 5 ft. Wave Detail: W 2 ft at 4 seconds, W 5 ft at 11 seconds and S 2 ft at 14 seconds. .SAT NIGHT...NW wind 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: NW 2 ft at 4 seconds, NW 5 ft at 9 seconds and SW 2 ft at 13 seconds. $$ PZZ272-182315- Waters from Cape Falcon to Cape Foulweather OR from 10 to 60 NM- 125 AM PDT Tue Aug 18 2026 .TODAY...N wind 10 to 15 kt, easing to 5 to 10 kt late this morning and early afternoon, rising to 10 to 15 kt late. Seas around 4 ft. Wave Detail: N 2 ft at 4 seconds, W 4 ft at 13 seconds and SW 2 ft at 14 seconds. .TONIGHT...N wind 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: N 2 ft at 4 seconds, W 4 ft at 13 seconds and SW 2 ft at 14 seconds. .WED...N wind 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: N 3 ft at 4 seconds, W 5 ft at 12 seconds and SW 2 ft at 14 seconds. .WED NIGHT...N wind 10 to 15 kt. Seas around 5 ft. Wave Detail: N 3 ft at 4 seconds, W 5 ft at 12 seconds and SW 2 ft at 15 seconds. .THU...N wind 5 to 10 kt. Seas around 5 ft. Wave Detail: N 2 ft at 4 seconds, W 5 ft at 11 seconds and SW 2 ft at 15 seconds. .THU NIGHT...NW wind 5 to 10 kt. Seas around 5 ft. Wave Detail: N 2 ft at 4 seconds, W 4 ft at 11 seconds and SW 2 ft at 15 seconds. .FRI...SW wind around 5 kt. Seas around 4 ft. Wave Detail: W 3 ft at 10 seconds and SW 2 ft at 15 seconds. .FRI NIGHT...SW wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: SW 2 ft at 4 seconds, W 4 ft at 10 seconds and SW 2 ft at 14 seconds. .SAT...W wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W 2 ft at 4 seconds, NW 5 ft at 10 seconds and SW 2 ft at 14 seconds. .SAT NIGHT...N wind around 10 kt. Seas 5 to 6 ft. Wave Detail: NW 2 ft at 4 seconds, NW 5 ft at 9 seconds and SW 2 ft at 13 seconds. $$ PZZ273-182315- Waters from Cape Foulweather to Florence OR from 10 to 60 NM- 125 AM PDT Tue Aug 18 2026 .TODAY...N wind 10 to 15 kt, easing to 5 to 10 kt late this morning and early afternoon, rising to 10 to 15 kt late. Seas around 4 ft. Wave Detail: N 3 ft at 5 seconds, W 4 ft at 13 seconds and SW 2 ft at 14 seconds. .TONIGHT...N wind 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. Wave Detail: N 3 ft at 5 seconds, W 4 ft at 13 seconds and SW 2 ft at 14 seconds. .WED...N wind 10 to 15 kt. Seas 5 to 6 ft. Wave Detail: N 3 ft at 4 seconds, W 5 ft at 12 seconds and SW 2 ft at 14 seconds. .WED NIGHT...N wind 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft. Wave Detail: N 3 ft at 4 seconds, W 4 ft at 12 seconds and SW 2 ft at 15 seconds. .THU...N wind 5 to 10 kt. Seas around 5 ft. Wave Detail: N 2 ft at 4 seconds, W 4 ft at 11 seconds and SW 2 ft at 15 seconds. .THU NIGHT...NW wind 5 to 10 kt. Seas around 5 ft. Wave Detail: N 2 ft at 4 seconds, W 4 ft at 11 seconds and SW 2 ft at 15 seconds. .FRI...W wind around 5 kt. Seas around 4 ft. Wave Detail: W 3 ft at 10 seconds and SW 2 ft at 14 seconds. .FRI NIGHT...W wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W 2 ft at 4 seconds, W 4 ft at 10 seconds and SW 2 ft at 14 seconds. .SAT...W wind 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: W 2 ft at 4 seconds, NW 5 ft at 9 seconds and SW 2 ft at 14 seconds. .SAT NIGHT...N wind 10 to 15 kt. Seas 5 to 6 ft. Wave Detail: N 2 ft at 4 seconds, NW 5 ft at 9 seconds and SW 2 ft at 13 seconds. $$ PZZ210-182315- Columbia River Bar- 125 AM PDT Tue Aug 18 2026 .IN THE MAIN CHANNEL... .GENERAL SEAS...3 to 5 ft through Wednesday morning. .FIRST EBB...Ebb current of 3.25 kt at 906 AM Tuesday. Seas 3 to 4 ft. .SECOND EBB...Ebb current of 4.47 kt at 944 PM Tuesday. Seas 4 to 5 ft. .THIRD EBB...Ebb current of 2.47 kt at 954 AM Wednesday. Seas 4 to 5 ft. $$