Coastal Waters Forecast
Issued by NWS Portland, ME

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890
FZUS51 KGYX 301738
CWFGYX

Coastal Waters Forecast
National Weather Service Gray ME
138 PM EDT Sat Aug 30 2025

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

ANZ100-310745-
138 PM EDT Sat Aug 30 2025

.Synopsis for Stonington ME to Merrimack River Ma out to 25 NM
An upper level low pressure system will slowly drift across the
Northeast through Monday. There will be scattered afternoon showers
but those will mainly keep to the mountains and little precipitation
is expected over the waters. Otherwise the forecast remains dry and
winds are expected to be light with small seas into the middle of the
week.

$$

ANZ154-310745-
Coastal Waters from Cape Elizabeth, ME to Merrimack River, MA out
25 NM-
138 PM EDT Sat Aug 30 2025

.TONIGHT...SW winds 5 to 10 kt, becoming NW late this evening and
overnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and SE
2 ft at 5 seconds.
.SUN...NW winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to
3 ft. Wave Detail: SE 3 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...NE winds around 5 kt. Seas around 2 ft. Wave Detail: SE 2 ft
at 8 seconds.
.MON NIGHT...SE winds around 5 kt, becoming NE after midnight. Seas
around 2 ft. Wave Detail: SE 2 ft at 8 seconds.
.TUE...NE winds around 5 kt, becoming SE in the afternoon. Seas
1 foot or less, then around 2 ft in the afternoon. Wave Detail: SE
1 foot at 9 seconds.
.TUE NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft.
.WED...SW winds 5 to 10 kt. Seas 3 to 4 ft.
.WED NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to
4 ft.
.THU...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to
20 kt in the afternoon. Seas 3 to 4 ft.
.THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. A chance of showers after midnight.

$$

ANZ152-310745-
Coastal Waters from Port Clyde, ME to Cape Elizabeth, ME out 25 NM-
138 PM EDT Sat Aug 30 2025

.TONIGHT...SW winds 5 to 10 kt, becoming NW late this evening and
overnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and S
2 ft at 5 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.
.SUN NIGHT...SW winds around 5 kt, becoming NW after midnight. Seas
around 2 ft. Wave Detail: SE 2 ft at 8 seconds.
.MON...NE winds around 5 kt, becoming E in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 8 seconds.
.MON NIGHT...SE winds around 5 kt, becoming NE after midnight. Seas
around 2 ft. Wave Detail: SE 2 ft at 8 seconds.
.TUE...NE winds around 5 kt, becoming SE around 5 kt in the
afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds.
.TUE NIGHT...SW winds around 5 kt. Seas 2 to 4 ft.
.WED...SW winds 5 to 10 kt. Seas 3 to 4 ft.
.WED NIGHT...SW winds 5 to 10 kt. Seas 3 to 4 ft.
.THU...S winds 5 to 10 kt. Seas around 3 ft.
.THU NIGHT...S winds around 10 kt with gusts up to 20 kt. Seas
around 3 ft. A chance of showers after midnight.

$$

ANZ150-310745-
Coastal Waters from Stonington, ME to Port Clyde, ME out 25 NM-
138 PM EDT Sat Aug 30 2025

.TONIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and S 2 ft at
5 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.
.SUN NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas
2 to 3 ft. Wave Detail: SE 2 ft at 8 seconds.
.MON...NE winds around 5 kt, becoming E in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds.
.MON NIGHT...S winds around 5 kt, becoming N after midnight. Seas
around 2 ft. Wave Detail: SE 2 ft at 9 seconds.
.TUE...NE winds around 5 kt, becoming SE in the afternoon. Seas
1 foot or less, then around 2 ft in the afternoon.
.TUE NIGHT...SW winds around 5 kt. Seas 2 to 4 ft.
.WED...SW winds 5 to 10 kt. Seas 3 to 4 ft.
.WED NIGHT...SW winds 5 to 10 kt. Seas 3 to 4 ft.
.THU...S winds 5 to 10 kt. Seas around 3 ft.
.THU NIGHT...S winds around 10 kt with gusts up to 20 kt. Seas 2 to
3 ft. A chance of showers after midnight.

$$

ANZ153-310745-
Casco Bay-
138 PM EDT Sat Aug 30 2025

.TONIGHT...SW winds 5 to 10 kt, becoming NW. Seas around 2 ft.
.SUN...NW winds around 5 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 around 5 kt, becoming SE around 5 kt in the
afternoon. Seas around 2 ft.
.MON NIGHT...S winds around 5 kt in the evening, becoming light and
variable. 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...SW winds around 5 kt. Seas around 2 ft.
.WED...SW winds 5 to 10 kt. Seas 2 to 4 ft.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft.
.THU...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to
20 kt in the afternoon. Seas 2 to 3 ft.
.THU NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
after midnight.

$$

ANZ151-310745-
Penobscot Bay-
138 PM EDT Sat Aug 30 2025

.TONIGHT...SW winds around 5 kt, becoming NW late this evening and
overnight. Seas around 2 ft. Isolated showers this afternoon and
evening.
.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
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. Seas 2 to 3 ft.
.WED...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
.THU...S winds 5 to 10 kt. Seas around 2 ft.
.THU NIGHT...S winds 5 to 10 kt. Seas around 2 ft. A chance of
showers after midnight.

$$