732
FZUS51 KGYX 212351
CWFGYX

Coastal Waters Forecast
National Weather Service Gray ME
751 PM EDT Thu Aug 21 2025

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

ANZ100-221400-
751 PM EDT Thu Aug 21 2025

.Synopsis for Stonington ME to Merrimack River Ma out to 25 NM
High pressure builds in from the north and will hold over New
England through Saturday while Hurricane Erin passes well southeast
of the coastal waters. Long period swell from Erin will build,
peaking late Friday into Saturday. The gradient from Erin and high
pressure to the north will bring increasing north to northeast flow
through Friday. Winds shifts out of the south over the weekend and
increase ahead of an approaching cold front.

$$

ANZ154-221400-
Coastal Waters from Cape Elizabeth, ME to Merrimack River, MA out
25 NM-
751 PM EDT Thu Aug 21 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING...

.TONIGHT...NE winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. Seas 3 to 5 ft, building to 5 to 7 ft after midnight. Wave
Detail: SE 4 ft at 6 seconds and SE 3 ft at 16 seconds, becoming SE
5 ft at 7 seconds and SE 4 ft at 17 seconds.
.FRI...N winds 15 to 20 kt, becoming E 10 to 15 kt in the afternoon.
Seas 5 to 8 ft. Wave Detail: E 7 ft at 9 seconds and SE 5 ft at
16 seconds.
.FRI NIGHT...SW winds 5 to 10 kt. Seas 6 to 8 ft. Wave Detail: E
7 ft at 12 seconds and SE 6 ft at 15 seconds.
.SAT...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to
25 kt in the afternoon. Seas 6 to 8 ft. Wave Detail: E 8 ft at
12 seconds.
.SAT NIGHT...S winds 15 to 20 kt, becoming SW 10 to 15 kt after
midnight. Seas 5 to 7 ft. Wave Detail: E 7 ft at 12 seconds and S
4 ft at 4 seconds.
.SUN...S winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas 5 to 6 ft. Wave Detail: E 5 ft at
11 seconds and SE 4 ft at 6 seconds.
.SUN NIGHT...S winds 15 to 20 kt with gusts up to 30 kt, diminishing
to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 3 to
5 ft. A chance of showers after midnight.
.MON...S winds around 10 kt. Seas 2 to 3 ft. Showers likely.
.MON NIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas
2 to 3 ft. Showers likely, mainly in the evening.
.TUE...W winds 5 to 10 kt. Seas 2 to 4 ft.
.TUE NIGHT...W winds around 10 kt with gusts up to 20 kt. Seas 4 to
6 ft.

$$

ANZ152-221400-
Coastal Waters from Port Clyde, ME to Cape Elizabeth, ME out 25 NM-
751 PM EDT Thu Aug 21 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING...

.TONIGHT...E winds 5 to 10 kt, becoming NE 10 to 15 kt late this
evening and overnight. Gusts up to 25 kt. Seas 4 to 5 ft, building
to 5 to 7 ft after midnight. Wave Detail: S 5 ft at 15 seconds,
becoming S 6 ft at 17 seconds.
.FRI...N winds 10 to 15 kt, becoming E in the afternoon. Gusts up to
25 kt. Seas 7 to 10 ft. Wave Detail: S 7 ft at 17 seconds and E 6 ft
at 8 seconds.
.FRI NIGHT...SW winds 5 to 10 kt. Seas 7 to 10 ft. Wave Detail: SE
8 ft at 12 seconds and SE 8 ft at 16 seconds.
.SAT...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 5 to 8 ft. Wave Detail: SE 8 ft at
12 seconds.
.SAT NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to
6 ft. Wave Detail: SE 6 ft at 12 seconds and S 4 ft at 5 seconds.
.SUN...S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft.
Wave Detail: S 4 ft at 6 seconds and E 4 ft at 11 seconds.
.SUN NIGHT...S winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. Seas 3 to 5 ft. A chance of showers after midnight.
.MON...S winds around 10 kt. Seas 2 to 3 ft. A chance of showers in
the morning, then showers likely in the afternoon.
.MON NIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas
2 to 3 ft. A chance of showers.
.TUE...SW winds 5 to 10 kt. Seas 3 to 5 ft.
.TUE NIGHT...W winds 5 to 10 kt. Seas 4 to 6 ft, building to 5 to
8 ft after midnight.

$$

ANZ150-221400-
Coastal Waters from Stonington, ME to Port Clyde, ME out 25 NM-
751 PM EDT Thu Aug 21 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING...

.TONIGHT...NE winds 5 to 10 kt with gusts up to 20 kt, increasing to
10 to 15 kt with gusts up to 20 kt towards daybreak. Seas 5 to 7 ft.
Wave Detail: S 7 ft at 17 seconds.
.FRI...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 8 to 11 ft.
Wave Detail: S 8 ft at 17 seconds and E 6 ft at 9 seconds.
.FRI NIGHT...SW winds around 5 kt. Seas 8 to 11 ft, subsiding to
7 to 9 ft after midnight. Wave Detail: SE 8 ft at 16 seconds and SE
6 ft at 10 seconds, becoming SE 8 ft at 14 seconds.
.SAT...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 5 to 7 ft. Wave Detail: SE 7 ft at
12 seconds.
.SAT NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to
5 ft. Wave Detail: SE 5 ft at 12 seconds and S 4 ft at 5 seconds.
.SUN...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft.
Wave Detail: S 4 ft at 6 seconds and SE 3 ft at 11 seconds.
.SUN NIGHT...S winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. Seas 3 to 4 ft. A chance of showers after midnight.
.MON...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A
chance of showers.
.MON NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas
2 to 3 ft. A chance of showers.
.TUE...SW winds 5 to 10 kt. Seas 2 to 4 ft, building to 4 to 5 ft in
the afternoon. A chance of showers in the morning.
.TUE NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Seas 5 to
8 ft.

$$

ANZ153-221400-
Casco Bay-
751 PM EDT Thu Aug 21 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT FRIDAY THROUGH
SATURDAY EVENING...

.TONIGHT...E winds 5 to 10 kt, becoming N after midnight. Seas 2 to
4 ft.
.FRI...N winds 5 to 10 kt, becoming NE in the afternoon. Seas 3 to
5 ft.
.FRI NIGHT...SW winds 5 to 10 kt. Seas 3 to 5 ft.
.SAT...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 3 to 5 ft.
.SAT NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.SUN...S winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 2 to 4 ft.
.SUN NIGHT...S winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. Seas 2 to 4 ft. A chance of showers after midnight.
.MON...S winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft.
A chance of showers in the morning, then showers likely in the
afternoon.
.MON NIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas
around 2 ft. Showers likely, mainly in the evening.
.TUE...SW winds 5 to 10 kt. Seas 2 to 4 ft.
.TUE NIGHT...W winds 5 to 10 kt. Seas 2 to 4 ft.

$$

ANZ151-221400-
Penobscot Bay-
751 PM EDT Thu Aug 21 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING...

.TONIGHT...SE winds around 5 kt, becoming NE late this evening and
early morning, then becoming N towards daybreak. Seas 3 to 5 ft.
Wave Detail: S 4 ft at 15 seconds.
.FRI...NE winds 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: S 6 ft at
17 seconds.
.FRI NIGHT...SW winds around 5 kt. Seas 4 to 6 ft. Wave Detail: S
5 ft at 14 seconds.
.SAT...S winds around 5 kt, increasing to 5 to 10 kt with gusts up
to 20 kt in the afternoon. Seas 2 to 4 ft.
.SAT NIGHT...S winds around 10 kt with gusts up to 20 kt. Seas 2 to
3 ft.
.SUN...S winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 3 seconds.
.SUN NIGHT...S winds 10 to 15 kt. Gusts up to 25 kt in the evening.
Seas 2 to 3 ft. A chance of showers after midnight.
.MON...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers in
the morning, then showers likely in the afternoon.
.MON NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas
around 2 ft. Showers likely, mainly in the evening.
.TUE...SW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers in
the morning.
.TUE NIGHT...W winds 5 to 10 kt. Seas 3 to 5 ft.

$$