Coastal Waters Forecast
Issued by NWS Portland, ME

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603
FZUS51 KGYX 281007
CWFGYX

Coastal Waters Forecast
National Weather Service Gray ME
606 AM EDT Thu Aug 28 2025

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

ANZ100-282300-
606 AM EDT Thu Aug 28 2025

.Synopsis for Stonington ME to Merrimack River Ma out to 25 NM
High pressure moves east of the waters today and tonight. A cold
front approaches on Friday bringing showers and thunderstorms to the
waters. Upper level low pressure remains west of the waters this
weekend. High pressure then builds in behind the front for the second
half of the weekend and early next week.

$$

ANZ154-282300-
Coastal Waters from Cape Elizabeth, ME to Merrimack River, MA out
25 NM-
606 AM EDT Thu Aug 28 2025

.TODAY...W winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to
20 kt this afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at
9 seconds and S 2 ft at 3 seconds.
.TONIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas around
3 ft. Wave Detail: S 3 ft at 4 seconds and SE 2 ft at 9 seconds.
.FRI...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft.
Wave Detail: S 3 ft at 4 seconds and SE 2 ft at 8 seconds. Numerous
showers in the morning, then showers and scattered tstms in the
afternoon.
.FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt, becoming W
5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at
5 seconds. Showers and scattered tstms in the evening, then a chance
of showers after midnight.
.SAT...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to
3 ft. Wave Detail: SE 2 ft at 6 seconds.
.SAT NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas
around 2 ft. Wave Detail: S 2 ft at 5 seconds.
.SUN...NW winds 5 to 10 kt, becoming S in the afternoon. Seas around
2 ft.
.SUN NIGHT...SW winds around 5 kt, becoming NW after midnight. Seas
around 2 ft.
.MON...N winds 5 to 10 kt, becoming SE in the afternoon. Seas around
2 ft.
.MON NIGHT...S winds around 5 kt, becoming W after midnight. Seas
around 2 ft.

Winds and seas higher in and near tstms.

$$

ANZ152-282300-
Coastal Waters from Port Clyde, ME to Cape Elizabeth, ME out 25 NM-
606 AM EDT Thu Aug 28 2025

.TODAY...W winds around 5 kt, becoming S with gusts up to 20 kt this
afternoon. Seas around 3 ft. Wave Detail: SE 3 ft at 9 seconds and S
2 ft at 7 seconds.
.TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas around
3 ft. Wave Detail: S 3 ft at 4 seconds and SE 2 ft at 9 seconds.
.FRI...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft.
Wave Detail: S 3 ft at 5 seconds and SE 2 ft at 8 seconds. Numerous
showers. Scattered tstms in the afternoon.
.FRI NIGHT...S winds 5 to 10 kt with gusts up to 20 kt, becoming SW
after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds. A
chance of tstms in the evening. Showers likely.
.SAT...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to
3 ft. Wave Detail: S 2 ft at 6 seconds. A chance of showers.
.SAT NIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas
around 2 ft. Wave Detail: S 2 ft at 5 seconds.
.SUN...NW winds around 5 kt, becoming SW in the afternoon. Seas
around 2 ft.
.SUN NIGHT...W winds around 5 kt, becoming NW after midnight. Seas
around 2 ft.
.MON...N winds around 5 kt, becoming SE in the afternoon. Seas
around 2 ft.
.MON NIGHT...W winds around 5 kt. Seas around 2 ft.

Winds and seas higher in and near tstms.

$$

ANZ150-282300-
Coastal Waters from Stonington, ME to Port Clyde, ME out 25 NM-
606 AM EDT Thu Aug 28 2025

.TODAY...W winds around 5 kt, becoming S this afternoon. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 9 seconds and S 2 ft at 7 seconds.
.TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: S 2 ft at 7 seconds and SE 2 ft at 9 seconds.
.FRI...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft.
Wave Detail: S 3 ft at 5 seconds and SE 2 ft at 8 seconds. Scattered
showers in the morning, then numerous showers in the afternoon.
.FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt, diminishing
to 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at
5 seconds. A chance of tstms in the evening. Showers.
.SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at
6 seconds. Showers likely, mainly in the morning.
.SAT NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 5 seconds.
.SUN...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas
around 2 ft.
.SUN NIGHT...W winds around 5 kt. Seas around 2 ft.
.MON...N winds 5 to 10 kt, becoming S in the afternoon. Seas around
2 ft.
.MON NIGHT...W winds around 5 kt. Seas around 2 ft in the evening,
then 1 foot or less.

Winds and seas higher in and near tstms.

$$

ANZ153-282300-
Casco Bay-
606 AM EDT Thu Aug 28 2025

.TODAY...W winds around 5 kt, becoming SW late this morning, then
becoming S 10 to 15 kt with gusts up to 20 kt this afternoon. Seas
2 to 3 ft.
.TONIGHT...S winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Seas 2 to 3 ft.
.FRI...S winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Numerous showers in the morning, then
showers and scattered tstms in the afternoon.
.FRI NIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas
2 to 3 ft. Showers and scattered tstms in the evening, then a chance
of showers after midnight.
.SAT...NW winds around 5 kt, becoming SW in the afternoon. Seas
around 2 ft. A chance of showers in the morning.
.SAT NIGHT...W winds around 5 kt. Seas around 2 ft.
.SUN...NW winds around 5 kt, becoming SW in the afternoon. Seas
1 foot or less, then around 2 ft in the afternoon.
.SUN NIGHT...SW winds around 5 kt, becoming NW after midnight. Seas
around 2 ft.
.MON...N winds around 5 kt, becoming SE in the afternoon. Seas
around 2 ft.
.MON NIGHT...SW winds around 5 kt, becoming W after midnight. Seas
around 2 ft in the evening, then 1 foot or less.

Winds and seas higher in and near tstms.

$$

ANZ151-282300-
Penobscot Bay-
606 AM EDT Thu Aug 28 2025

.TODAY...SW winds around 5 kt, becoming S this afternoon. Seas
around 2 ft.
.TONIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.FRI...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at
4 seconds. Numerous showers. Scattered tstms in the afternoon.
.FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 5 seconds. A chance of tstms in the evening. Showers.
.SAT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at
6 seconds. Showers likely, mainly in the morning.
.SAT NIGHT...W winds around 5 kt. Seas around 2 ft in the evening,
then 1 foot or less. Wave Detail: S 2 ft at 5 seconds.
.SUN...NW winds around 5 kt, becoming SW in the afternoon. Seas
1 foot or less.
.SUN NIGHT...W winds around 5 kt, becoming NW after midnight. Seas
1 foot or less.
.MON...N winds around 5 kt, becoming S in the afternoon. Seas 1 foot
or less.
.MON NIGHT...W winds around 5 kt. Seas 1 foot or less.

Winds and seas higher in and near tstms.

$$