028
FZUS51 KGYX 200540
CWFGYX

Coastal Waters Forecast
National Weather Service Gray ME
140 AM EDT Wed Aug 20 2025

COASTAL WATERS FROM STONINGTON ME TO MERRIMACK RIVER MA OUT TO 25 NM

ANZ100-201945-
140 AM EDT Wed Aug 20 2025

.Synopsis for Stonington ME to Merrimack River Ma out to 25 NM
A wave of low pressure tracks south of the waters today followed by
high pressure building in from the north Thursday into the weekend.
Long period swell from Erin passing well southeast of the waters will
build Thursday and peak late Friday into this weekend. The gradient
from Erin and high pressure to the north will bring increasing
northeast flow Thursday and Friday. Flow shifts out of the south late
in the weekend ahead of an approaching cold front.

$$

ANZ154-201945-
Coastal Waters from Cape Elizabeth, ME to Merrimack River, MA out
25 NM-
140 AM EDT Wed Aug 20 2025

.TODAY...E winds around 5 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 14 seconds. A slight chance of showers.
.TONIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 14 seconds.
.THU...NE winds 5 to 10 kt, becoming E 10 to 15 kt with gusts up to
20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: SE 3 ft at
6 seconds and SE 3 ft at 15 seconds.
.THU NIGHT...NE winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. Seas 4 to 6 ft. Wave Detail: SE 4 ft at 17 seconds and SE
3 ft at 7 seconds.
.FRI...NE winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Gusts up to 30 kt. Seas 5 to 8 ft. Wave Detail: E 6 ft at
8 seconds and SE 4 ft at 17 seconds.
.FRI NIGHT...NE winds 5 to 10 kt, becoming NW after midnight. Seas
6 to 8 ft. Wave Detail: SE 8 ft at 13 seconds and SE 5 ft at
18 seconds.
.SAT...N winds 5 to 10 kt with gusts up to 20 kt, becoming SE in the
afternoon. Seas 5 to 7 ft.
.SAT NIGHT...S winds around 10 kt with gusts up to 20 kt. Seas 4 to
6 ft.
.SUN...S winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft.
.SUN NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to
7 ft, subsiding to 4 to 5 ft after midnight. A chance of showers.

$$

ANZ152-201945-
Coastal Waters from Port Clyde, ME to Cape Elizabeth, ME out 25 NM-
140 AM EDT Wed Aug 20 2025

.TODAY...SE winds around 5 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 15 seconds. A slight chance of showers early this morning.
.TONIGHT...E winds around 5 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 13 seconds.
.THU...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at
15 seconds and SE 2 ft at 6 seconds.
.THU NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt after
midnight. Gusts up to 25 kt. Seas 3 to 5 ft, building to 5 to 7 ft
after midnight. Wave Detail: S 4 ft at 17 seconds, becoming S 6 ft
at 17 seconds.
.FRI...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 6 to 9 ft.
Wave Detail: S 7 ft at 17 seconds and SE 4 ft at 8 seconds.
.FRI NIGHT...N winds 5 to 10 kt with gusts up to 20 kt. Seas 6 to
9 ft. Wave Detail: SE 9 ft at 16 seconds and SE 6 ft at 9 seconds.
.SAT...NE winds around 10 kt with gusts up to 20 kt, becoming SE in
the afternoon. Seas 5 to 7 ft.
.SAT NIGHT...S winds around 10 kt with gusts up to 20 kt. Seas 4 to
6 ft.
.SUN...S winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to 6 ft.
.SUN NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to
7 ft, subsiding to 3 to 4 ft after midnight. A chance of showers
after midnight.

$$

ANZ150-201945-
Coastal Waters from Stonington, ME to Port Clyde, ME out 25 NM-
140 AM EDT Wed Aug 20 2025

.TODAY...SE winds around 5 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft
at 14 seconds.
.TONIGHT...Light and variable winds, becoming E around 5 kt after
midnight. Seas 2 to 4 ft. Wave Detail: S 4 ft at 13 seconds.
.THU...E winds around 5 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at
15 seconds.
.THU NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt after midnight. Seas 3 to 5 ft, building to 5 to
7 ft after midnight. Wave Detail: S 5 ft at 17 seconds, becoming S
7 ft at 17 seconds.
.FRI...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 6 to 9 ft.
Wave Detail: S 8 ft at 17 seconds and SE 4 ft at 8 seconds.
.FRI NIGHT...NE winds 5 to 10 kt, becoming N 10 to 15 kt after
midnight. Seas 6 to 9 ft, subsiding to 5 to 7 ft after midnight.
Wave Detail: S 9 ft at 17 seconds and SE 5 ft at 9 seconds, becoming
SE 7 ft at 16 seconds.
.SAT...NE winds 10 to 15 kt with gusts up to 20 kt, becoming SE in
the afternoon. Seas 4 to 6 ft.
.SAT NIGHT...S winds around 10 kt with gusts up to 20 kt. Seas 3 to
5 ft.
.SUN...S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft.
.SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to
6 ft, subsiding to 3 to 4 ft after midnight. A chance of showers
after midnight.

$$

ANZ153-201945-
Casco Bay-
140 AM EDT Wed Aug 20 2025

.TODAY...SE winds around 5 kt, increasing to 5 to 10 kt this
afternoon. Seas around 2 ft.
.TONIGHT...SE winds around 5 kt, becoming NE after midnight. Seas
around 2 ft.
.THU...E winds 5 to 10 kt. Seas 2 to 3 ft.
.THU NIGHT...E winds 5 to 10 kt, becoming NE with gusts up to 20 kt
after midnight. Seas 3 to 5 ft.
.FRI...N winds 10 to 15 kt with gusts up to 20 kt, becoming NE 5 to
10 kt in the afternoon. Seas 3 to 5 ft.
.FRI NIGHT...NE winds 5 to 10 kt, becoming NW after midnight. Seas
3 to 5 ft.
.SAT...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas 3 to
5 ft.
.SAT NIGHT...S winds 5 to 10 kt. Seas 3 to 5 ft.
.SUN...S winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft.
.SUN NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to
5 ft. A chance of showers.

$$

ANZ151-201945-
Penobscot Bay-
140 AM EDT Wed Aug 20 2025

.TODAY...SE winds around 5 kt, becoming S around 5 kt this
afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 15 seconds.
.TONIGHT...S winds around 5 kt, becoming N after midnight. Seas
around 2 ft. Wave Detail: S 2 ft at 13 seconds.
.THU...NE winds around 5 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: S 2 ft at 14 seconds.
.THU NIGHT...E winds around 5 kt, becoming N after midnight. Seas
2 to 3 ft. Wave Detail: S 3 ft at 17 seconds.
.FRI...NE winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at
17 seconds.
.FRI NIGHT...N winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft
at 15 seconds.
.SAT...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft.
.SAT NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft.
.SUN...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 2 to 4 ft.
.SUN NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers
after midnight.

$$