Coastal Waters Forecast
Issued by NWS Portland, ME

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070
FZUS51 KGYX 300021
CWFGYX

Coastal Waters Forecast
National Weather Service Gray ME
821 PM EDT Fri Aug 29 2025

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

ANZ100-301430-
821 PM EDT Fri Aug 29 2025

.Synopsis for Stonington ME to Merrimack River Ma out to 25 NM
A cold front will slowly slide across the waters tonight, pushing
showers and thunderstorms out into the Gulf of Maine. The upper level
disturbance will linger overhead through the weekend and provide
chances for scattered showers. Otherwise the forecast remains dry and
winds are expected to be light and seas small into early next week.

$$

ANZ154-301430-
Coastal Waters from Cape Elizabeth, ME to Merrimack River, MA out
25 NM-
821 PM EDT Fri Aug 29 2025

.TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt, becoming SW
5 to 10 kt with gusts up to 20 kt late this evening, then becoming W
after midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 5 seconds
and SE 3 ft at 8 seconds. Showers likely with scattered tstms this
evening, then isolated tstms after midnight. A chance of showers
after midnight. Areas of dense fog after midnight with vsby 1 NM or
less.
.SAT...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 5 seconds. Areas of dense fog
in the morning with vsby 1 NM or less.
.SAT NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 8 seconds.
.SUN...NW winds 5 to 10 kt, becoming S in the afternoon. Seas around
2 ft. Wave Detail: SE 2 ft at 8 seconds.
.SUN NIGHT...SW winds around 5 kt, becoming NW after midnight. Seas
around 2 ft. Wave Detail: SE 2 ft at 8 seconds.
.MON...N winds around 5 kt, becoming E in the afternoon. Seas around
2 ft. Wave Detail: E 2 ft at 7 seconds.
.MON NIGHT...S winds around 5 kt, becoming NW after midnight. Seas
around 2 ft.
.TUE...N winds around 5 kt, becoming SE in the afternoon. Seas
1 foot or less, then around 2 ft in the afternoon.
.TUE NIGHT...S winds around 5 kt, becoming W after midnight. Seas
2 to 4 ft.
.WED...SW winds around 5 kt, becoming S in the afternoon. Seas 3 to
5 ft.
.WED NIGHT...S winds 5 to 10 kt. Seas 3 to 4 ft.

Winds and seas higher in and near tstms.

$$

ANZ152-301430-
Coastal Waters from Port Clyde, ME to Cape Elizabeth, ME out 25 NM-
821 PM EDT Fri Aug 29 2025

.TONIGHT...S winds 5 to 10 kt with gusts up to 20 kt, becoming W
towards daybreak. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds
and SE 3 ft at 8 seconds. A chance of showers early this evening.
Scattered tstms until early morning. Showers likely late this
evening and overnight. Areas of dense fog after midnight. Vsby 1 NM
or less early this evening, then 1 NM or less after midnight.
.SAT...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas
around 2 ft. Wave Detail: S 2 ft at 5 seconds. A chance of showers
in the morning. Areas of dense fog in the morning with vsby 1 NM or
less.
.SAT NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas
2 to 3 ft. Wave Detail: SE 2 ft at 8 seconds.
.SUN...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to
3 ft. Wave Detail: S 2 ft at 8 seconds.
.SUN NIGHT...SW winds around 5 kt, becoming NW after midnight. Seas
around 2 ft. Wave Detail: SE 2 ft at 8 seconds.
.MON...N winds around 5 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds.
.MON NIGHT...SW winds around 5 kt, becoming NW after midnight. Seas
around 2 ft.
.TUE...NE winds around 5 kt, becoming SE around 5 kt in the
afternoon. Seas around 2 ft in the morning, then 1 foot or less.
.TUE NIGHT...S winds around 5 kt, becoming W after midnight. Seas
2 to 4 ft.
.WED...SW winds 5 to 10 kt. Seas 3 to 5 ft.
.WED NIGHT...S winds 5 to 10 kt. Seas 3 to 5 ft.

Winds and seas higher in and near tstms.

$$

ANZ150-301430-
Coastal Waters from Stonington, ME to Port Clyde, ME out 25 NM-
821 PM EDT Fri Aug 29 2025

.TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 5 seconds and S 3 ft at 8 seconds. Patchy fog early this evening.
Patchy fog late this evening. Areas of dense fog after midnight. A
chance of showers this evening. Scattered tstms. Showers likely
after midnight. Vsby 1 NM or less early this evening, then 1 NM or
less after midnight.
.SAT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at
5 seconds. Scattered showers in the morning. Areas of dense fog in
the morning with vsby 1 NM or less.
.SAT NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas
2 to 3 ft. Wave Detail: S 3 ft at 8 seconds.
.SUN...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 8 seconds and S 2 ft at 7 seconds.
.SUN NIGHT...W winds around 5 kt, becoming NW after midnight. Seas
around 2 ft. Wave Detail: S 2 ft at 7 seconds and SE 2 ft at
8 seconds.
.MON...N winds around 5 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds.
.MON NIGHT...SW winds around 5 kt, becoming NW after midnight. Seas
around 2 ft.
.TUE...NE winds around 5 kt, becoming SE in the afternoon. Seas
1 foot or less.
.TUE NIGHT...S winds around 5 kt, becoming W after midnight. Seas
2 to 4 ft.
.WED...W winds around 5 kt, becoming S in the afternoon. Seas 3 to
5 ft.
.WED NIGHT...S winds 5 to 10 kt. Seas 3 to 4 ft.

Winds and seas higher in and near tstms.

$$

ANZ153-301430-
Casco Bay-
821 PM EDT Fri Aug 29 2025

.TONIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas 2 to
3 ft. Scattered tstms this evening. Showers likely. Isolated tstms
after midnight. Areas of dense fog after midnight with vsby 1 NM or
less.
.SAT...NW winds around 5 kt, becoming SW in the afternoon. Seas
around 2 ft. A chance of showers in the morning. Areas of dense fog
in the morning with vsby 1 NM or less.
.SAT NIGHT...W winds around 5 kt. Seas around 2 ft.
.SUN...NW winds around 5 kt, becoming SW 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 around 5 kt, becoming SE in the afternoon. Seas
around 2 ft.
.MON NIGHT...SW winds around 5 kt, becoming NW after midnight. Seas
around 2 ft.
.TUE...NE winds around 5 kt, becoming SE around 5 kt in the
afternoon. Seas 1 foot or less.
.TUE NIGHT...S winds around 5 kt, becoming W around 5 kt after
midnight. Seas 1 foot or less, then around 2 ft after midnight.
.WED...SW winds around 5 kt, becoming S in the afternoon. Seas 2 to
4 ft.
.WED NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft.

Winds and seas higher in and near tstms.

$$

ANZ151-301430-
Penobscot Bay-
821 PM EDT Fri Aug 29 2025

.TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft
at 5 seconds. A chance of showers early this evening. Scattered
tstms until early morning. Showers likely late this evening and
overnight. Patchy fog late this evening. Areas of dense fog after
midnight with vsby 1 NM or less.
.SAT...SW winds around 5 kt. Seas around 2 ft. Showers likely in the
morning. Areas of dense fog in the morning with vsby 1 NM or less.
.SAT NIGHT...W winds around 5 kt. Seas around 2 ft.
.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 S in the afternoon. Seas 1 foot
or less.
.MON NIGHT...SW winds around 5 kt in the evening, becoming light and
variable. Seas 1 foot or less.
.TUE...NE winds around 5 kt, becoming S around 5 kt in the
afternoon. Seas 1 foot or less.
.TUE NIGHT...SW winds around 5 kt, becoming W after midnight. Seas
1 foot or less, then 2 to 3 ft after midnight.
.WED...W winds around 5 kt, becoming S in the afternoon. Seas 2 to
3 ft.
.WED NIGHT...S winds 5 to 10 kt. Seas around 2 ft.

Winds and seas higher in and near tstms.

$$