Your Ultimate Boating Resource

HomeForecastsWashington ForecastsMailboat Slough, WA - Willapa River Coastal Forecast

Mailboat Slough, WA - Willapa River Coastal Forecast

FZUS56 KPQR 171951
CWFPQR

Coastal Waters Forecast
National Weather Service Portland OR
1151 AM PST Wed Dec 17 2025

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

PZZ200-181030-
1151 AM PST Wed Dec 17 2025

.SYNOPSIS FOR THE SOUTHERN WASHINGTON AND NORTHERN OREGON COAST...
Hazardous seas of 12 to 15 ft at 10 seconds through Thursday.
Strong frontal passage on Thursday with strong winds and heavy
rain. Chance of a coastal jet Thursday morning and afternoon
south of Rockaway Beach. Conditions become more settled over the
weekend.

$$

PZZ251-181030-
Coastal waters from Cape Shoalwater WA to Cape Falcon OR out
10 NM-
1151 AM PST Wed Dec 17 2025

...HAZARDOUS SEAS WARNING IN EFFECT THROUGH LATE TONIGHT...
...GALE WATCH IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY
EVENING...

.THIS AFTERNOON...W wind 20 to 25 kt. Seas 13 to 15 ft. Wave
Detail: W 6 ft at 7 seconds and W 14 ft at 11 seconds. A slight
chance of tstms. Showers.
.TONIGHT...SW wind 20 to 25 kt with gusts up to 30 kt. Seas 11 to
14 ft. Wave Detail: S 6 ft at 8 seconds and W 13 ft at
11 seconds. A slight chance of tstms. Showers likely in the
evening, then rain after midnight.
.THU...S wind 25 to 35 kt, veering to SW 25 to 30 kt in the
afternoon. Gusts up to 50 kt. Seas 12 to 16 ft, building to 14 to
15 ft in the afternoon. Wave Detail: SW 13 ft at 10 seconds and W
11 ft at 11 seconds. Rain.
.THU NIGHT...W wind 20 to 25 kt, easing to 15 to 20 kt after
midnight. Seas 12 to 14 ft. Wave Detail: W 10 ft at 8 seconds and
W 13 ft at 12 seconds. Rain.
.FRI...W wind 15 to 20 kt. Seas 11 to 12 ft. Wave Detail: W 4 ft
at 5 seconds and W 12 ft at 12 seconds. Rain.
.FRI NIGHT...SW wind 15 to 20 kt with gusts up to 25 kt. Seas
9 to 11 ft. Wave Detail: SW 5 ft at 7 seconds and NW 10 ft at
12 seconds. Showers.
.SAT...SW wind 15 to 20 kt. Seas around 9 ft. Wave Detail: SW
5 ft at 6 seconds and NW 8 ft at 11 seconds. Showers in the
morning, then rain in the afternoon.
.SAT NIGHT...S wind 15 to 20 kt. Seas 8 to 9 ft. Wave Detail: SW
4 ft at 6 seconds and NW 8 ft at 10 seconds. Rain.
.SUN...SW wind 15 to 20 kt. Seas 8 to 10 ft. Wave Detail: SW 5 ft
at 6 seconds and W 9 ft at 10 seconds. Rain.
.SUN NIGHT...SW wind 15 to 20 kt. Seas around 10 ft. Wave Detail:
SW 5 ft at 7 seconds and W 9 ft at 10 seconds. Rain.

Winds and seas higher in and near tstms.

$$

PZZ252-181030-
Coastal waters from Cape Falcon to Cape Foulweather OR out 10 NM-
1151 AM PST Wed Dec 17 2025

...HAZARDOUS SEAS WARNING IN EFFECT THROUGH LATE TONIGHT...
...STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY
EVENING...

.THIS AFTERNOON...W wind 20 to 25 kt, becoming SW 15 to 20 kt
late. Seas 13 to 15 ft. Wave Detail: W 5 ft at 7 seconds and W
14 ft at 11 seconds. A slight chance of tstms. Showers.
.TONIGHT...SW wind 15 to 20 kt, becoming S 20 to 25 kt after
midnight. Seas 11 to 14 ft. Wave Detail: S 7 ft at 8 seconds and
W 13 ft at 11 seconds. A slight chance of tstms. A chance of
showers in the evening, then rain after midnight.
.THU...S wind 30 to 40 kt with gusts up to 50 kt. Seas 14 to
18 ft. Wave Detail: W 12 ft at 11 seconds and S 16 ft at
12 seconds. Rain.
.THU NIGHT...W wind 20 to 25 kt with gusts up to 30 kt, becoming
NW 10 to 15 kt with gusts up to 20 kt after midnight. Seas 13 to
16 ft, subsiding to 12 to 14 ft after midnight. Wave Detail: W
11 ft at 9 seconds and W 14 ft at 12 seconds. Rain.
.FRI...W wind 10 to 15 kt, rising to 15 to 20 kt in the
afternoon. Seas 11 to 13 ft. Wave Detail: W 4 ft at 5 seconds and
W 13 ft at 12 seconds. Rain.
.FRI NIGHT...SW wind 15 to 20 kt with gusts up to 25 kt. Seas
9 to 11 ft. Wave Detail: SW 5 ft at 6 seconds and NW 10 ft at
12 seconds. Showers.
.SAT...SW wind 15 to 20 kt. Seas around 9 ft. Wave Detail: SW
5 ft at 6 seconds and NW 8 ft at 11 seconds. Showers in the
morning, then rain in the afternoon.
.SAT NIGHT...S wind 15 to 20 kt. Seas 8 to 9 ft. Wave Detail: S
4 ft at 6 seconds and NW 8 ft at 10 seconds. Rain.
.SUN...SW wind 15 to 20 kt. Seas 8 to 10 ft. Wave Detail: S 5 ft
at 6 seconds and W 9 ft at 10 seconds. Rain.
.SUN NIGHT...SW wind 15 to 20 kt, rising to 20 to 25 kt after
midnight. Seas 9 to 11 ft. Wave Detail: SW 5 ft at 7 seconds and
W 9 ft at 10 seconds. Rain.

Winds and seas higher in and near tstms.

$$

PZZ253-181030-
Coastal waters from Cape Foulweather to Florence OR out 10 NM-
1151 AM PST Wed Dec 17 2025

...HAZARDOUS SEAS WARNING IN EFFECT THROUGH LATE TONIGHT...
...STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY
EVENING...

.THIS AFTERNOON...SW wind 15 to 20 kt. Seas 11 to 14 ft. Wave
Detail: W 4 ft at 5 seconds and W 13 ft at 11 seconds. A chance
of showers early, then a slight chance of showers late.
.TONIGHT...S wind 10 to 15 kt with gusts up to 20 kt, rising to
20 to 25 kt with gusts up to 30 kt after midnight. Seas 10 to
11 ft, building to 10 to 13 ft after midnight. Wave Detail: S
6 ft at 8 seconds and W 11 ft at 11 seconds. A chance of showers
in the evening, then rain after midnight.
.THU...S wind 30 to 40 kt with gusts up to 55 kt. Seas 14 to
19 ft. Wave Detail: W 12 ft at 11 seconds and S 17 ft at
12 seconds. Rain.
.THU NIGHT...SW wind 25 to 30 kt with gusts up to 45 kt, becoming
NW 10 to 15 kt with gusts up to 20 kt after midnight. Seas 13 to
17 ft, subsiding to 11 to 14 ft after midnight. Wave Detail: SW
14 ft at 11 seconds and W 14 ft at 12 seconds. Rain.
.FRI...W wind 10 to 15 kt with gusts up to 20 kt. Seas 9 to
12 ft. Wave Detail: W 4 ft at 5 seconds and W 12 ft at
12 seconds. Rain.
.FRI NIGHT...SW wind 10 to 15 kt with gusts up to 20 kt. Seas
8 to 11 ft, subsiding to 7 to 9 ft after midnight. Wave Detail: W
3 ft at 5 seconds and NW 11 ft at 12 seconds. Showers.
.SAT...SW wind 10 to 15 kt. Seas 8 to 9 ft. Wave Detail: SW 4 ft
at 5 seconds and NW 8 ft at 11 seconds. Showers in the morning,
then rain in the afternoon.
.SAT NIGHT...S wind 10 to 15 kt. Seas 7 to 9 ft. Wave Detail: S
3 ft at 4 seconds and NW 8 ft at 10 seconds. Rain.
.SUN...S wind 15 to 20 kt, veering to SW in the afternoon. Seas
8 to 9 ft. Wave Detail: S 5 ft at 6 seconds and NW 7 ft at
10 seconds. Rain.
.SUN NIGHT...SW wind 15 to 20 kt. Seas 7 to 10 ft. Wave Detail:
SW 4 ft at 6 seconds and W 9 ft at 10 seconds. Rain.

$$

PZZ271-181030-
Waters from Cape Shoalwater WA to Cape Falcon OR from 10 to 60 NM-
1151 AM PST Wed Dec 17 2025

...HAZARDOUS SEAS WARNING IN EFFECT THROUGH LATE TONIGHT...
...GALE WATCH IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY
EVENING...

.THIS AFTERNOON...W wind 20 to 25 kt. Seas around 16 ft,
subsiding to 14 to 15 ft. Wave Detail: W 6 ft at 8 seconds and W
15 ft at 11 seconds. A chance of showers early, then showers
likely. A slight chance of tstms late.
.TONIGHT...SW wind 20 to 25 kt, becoming S 25 to 30 kt after
midnight. Seas 13 to 14 ft. Wave Detail: S 8 ft at 9 seconds and
W 13 ft at 11 seconds. A slight chance of tstms. Showers likely
in the evening, then rain after midnight.
.THU...S wind 30 to 35 kt, veering to W 25 to 30 kt in the
afternoon. Seas 14 to 16 ft. Wave Detail: S 13 ft at 10 seconds
and W 12 ft at 11 seconds. Rain.
.THU NIGHT...W wind 15 to 20 kt with gusts up to 25 kt. Seas
13 to 15 ft. Wave Detail: W 10 ft at 8 seconds and W 14 ft at
12 seconds. Rain.
.FRI...W wind 15 to 20 kt with gusts up to 25 kt. Seas 12 to
13 ft. Wave Detail: W 5 ft at 7 seconds and W 13 ft at
12 seconds. Rain.
.FRI NIGHT...W wind around 20 kt with gusts up to 25 kt. Seas
10 to 12 ft, subsiding to 9 to 10 ft after midnight. Wave Detail:
W 5 ft at 7 seconds and NW 11 ft at 12 seconds. Showers.
.SAT...SW wind 15 to 20 kt. Seas around 9 ft. Wave Detail: SW
5 ft at 7 seconds and NW 8 ft at 11 seconds. Showers in the
morning, then rain in the afternoon.
.SAT NIGHT...SW wind 15 to 20 kt. Seas 8 to 9 ft. Wave Detail: SW
4 ft at 6 seconds and NW 8 ft at 10 seconds. Rain.
.SUN...SW wind 15 to 20 kt. Seas 8 to 10 ft. Wave Detail: SW 5 ft
at 7 seconds and W 9 ft at 10 seconds. Rain.
.SUN NIGHT...SW wind around 20 kt. Seas around 10 ft. Wave
Detail: SW 5 ft at 6 seconds and W 9 ft at 10 seconds. Rain.

Winds and seas higher in and near tstms.

$$

PZZ272-181030-
Waters from Cape Falcon to Cape Foulweather OR from 10 to 60 NM-
1151 AM PST Wed Dec 17 2025

...HAZARDOUS SEAS WARNING IN EFFECT THROUGH LATE TONIGHT...
...GALE WATCH IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY
EVENING...

.THIS AFTERNOON...SW wind around 20 kt with gusts up to 25 kt.
Seas 14 to 15 ft. Wave Detail: W 5 ft at 7 seconds and W 14 ft at
11 seconds. Showers likely early, then a chance of showers early.
Showers likely late.
.TONIGHT...SW wind around 20 kt with gusts up to 25 kt, becoming
S 25 to 30 kt after midnight. Seas 13 to 14 ft, subsiding to
11 to 14 ft after midnight. Wave Detail: SW 5 ft at 7 seconds and
W 13 ft at 11 seconds. A slight chance of tstms. A chance of
showers in the evening, then rain after midnight.
.THU...S wind 30 to 35 kt, veering to SW 25 to 35 kt in the
afternoon. Gusts up to 50 kt. Seas 14 to 17 ft. Wave Detail: S
15 ft at 11 seconds and W 14 ft at 11 seconds. Rain.
.THU NIGHT...W wind 15 to 20 kt with gusts up to 25 kt. Seas
14 to 16 ft. Wave Detail: W 9 ft at 8 seconds and W 14 ft at
12 seconds. Rain.
.FRI...W wind 15 to 20 kt with gusts up to 25 kt. Seas 12 to
13 ft. Wave Detail: W 4 ft at 6 seconds and W 13 ft at
12 seconds. Rain.
.FRI NIGHT...W wind around 20 kt with gusts up to 25 kt. Seas
9 to 12 ft. Wave Detail: SW 5 ft at 7 seconds and NW 11 ft at
12 seconds. Showers.
.SAT...SW wind 15 to 20 kt. Seas around 9 ft. Wave Detail: SW
5 ft at 7 seconds and NW 8 ft at 11 seconds. Showers in the
morning, then rain in the afternoon.
.SAT NIGHT...SW wind 15 to 20 kt. Seas 8 to 9 ft. Wave Detail: SW
4 ft at 6 seconds and NW 8 ft at 10 seconds. Rain.
.SUN...SW wind around 20 kt. Seas 8 to 10 ft. Wave Detail: SW
5 ft at 7 seconds and W 9 ft at 10 seconds. Rain.
.SUN NIGHT...SW wind around 20 kt. Seas 9 to 10 ft. Wave Detail:
SW 5 ft at 7 seconds and W 9 ft at 10 seconds. Rain.

Winds and seas higher in and near tstms.

$$

PZZ273-181030-
Waters from Cape Foulweather to Florence OR from 10 to 60 NM-
1151 AM PST Wed Dec 17 2025

...HAZARDOUS SEAS WARNING IN EFFECT THROUGH LATE TONIGHT...
...GALE WATCH IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY
EVENING...

.THIS AFTERNOON...SW wind 15 to 20 kt. Seas 12 to 15 ft. Wave
Detail: W 4 ft at 6 seconds and W 13 ft at 11 seconds. A chance
of showers.
.TONIGHT...SW wind 15 to 20 kt with gusts up to 25 kt, becoming S
25 to 30 kt after midnight. Seas 11 to 14 ft. Wave Detail: S 9 ft
at 10 seconds and W 12 ft at 11 seconds. A chance of showers in
the evening, then rain after midnight.
.THU...S wind 30 to 40 kt, veering to SW 25 to 35 kt in the
afternoon. Seas 16 to 18 ft, subsiding to 14 to 18 ft in the
afternoon. Wave Detail: W 10 ft at 11 seconds and S 15 ft at
12 seconds. Rain.
.THU NIGHT...W wind 20 to 25 kt with gusts up to 35 kt, becoming
NW 10 to 15 kt with gusts up to 20 kt after midnight. Seas 15 to
17 ft, subsiding to 13 to 14 ft after midnight. Wave Detail: W
11 ft at 9 seconds and W 15 ft at 12 seconds. Rain.
.FRI...W wind around 15 kt with gusts up to 20 kt. Seas 11 to
13 ft. Wave Detail: W 4 ft at 5 seconds and W 13 ft at
12 seconds. Rain.
.FRI NIGHT...W wind 15 to 20 kt. Seas 9 to 11 ft. Wave Detail: W
4 ft at 5 seconds and NW 11 ft at 12 seconds. Showers.
.SAT...SW wind around 15 kt. Seas around 9 ft. Wave Detail: SW
4 ft at 6 seconds and NW 8 ft at 11 seconds. Showers in the
morning, then rain in the afternoon.
.SAT NIGHT...S wind 15 to 20 kt. Seas 8 to 9 ft. Wave Detail: SW
4 ft at 5 seconds and NW 8 ft at 10 seconds. Rain.
.SUN...SW wind around 20 kt. Seas 8 to 9 ft. Wave Detail: S 5 ft
at 7 seconds and NW 7 ft at 10 seconds. Rain.
.SUN NIGHT...SW wind 15 to 20 kt. Seas 8 to 10 ft. Wave Detail:
SW 5 ft at 6 seconds and W 9 ft at 10 seconds. Rain.

$$

PZZ210-181030-
Columbia River Bar-
1151 AM PST Wed Dec 17 2025

...HAZARDOUS SEAS WARNING IN EFFECT THROUGH LATE TONIGHT...
...GALE WATCH IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY
EVENING...

.IN THE MAIN CHANNEL...

.GENERAL SEAS...11 to 15 ft through Thursday afternoon.

.FIRST EBB...Ebb current of 5.37 kt at 254 PM Wednesday. Seas 12
to 15 ft.

.SECOND EBB...Ebb current of 2.49 kt at 322 AM Thursday. Seas 11
to 12 ft.

.THIRD EBB...Ebb current of 5.56 kt at 333 PM Thursday. Seas 14
to 15 ft.

$$


Don't Miss