Coastal Waters Forecast
Issued by NWS Portland, ME

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FZUS51 KGYX 181914
CWFGYX

Coastal Waters Forecast
National Weather Service Gray ME
314 PM EDT Fri Apr 18 2025

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

ANZ100-190915-
314 PM EDT Fri Apr 18 2025

.Synopsis for Stonington ME to Merrimack River Ma out to 25 NM
A warm front lifts across the waters tonight. This will result in
building seas and increasing southerly flow late into Saturday. A
cold front crosses the waters Saturday night into Sunday morning with
gusty NW winds Sunday. High pressure then builds in Sunday night
into Monday.

$$

ANZ154-190915-
Coastal Waters from Cape Elizabeth, ME to Merrimack River, MA out
25 NM-
314 PM EDT Fri Apr 18 2025

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

.TONIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
5 ft. Wave Detail: S 5 ft at 6 seconds. Isolated showers late this
evening and overnight.
.SAT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft.
Wave Detail: S 5 ft at 6 seconds.
.SAT NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: S 5 ft at 7 seconds.
.SUN...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft.
Wave Detail: W 3 ft at 4 seconds and S 3 ft at 8 seconds.
.SUN NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 4 seconds and SE
2 ft at 8 seconds.
.MON...NW winds 5 to 10 kt, becoming S with gusts up to 20 kt in the
afternoon. Seas around 2 ft.
.MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. Scattered showers in the evening, then showers likely after
midnight.
.TUE...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft.
Showers likely, mainly in the morning.
.TUE NIGHT...W winds around 10 kt with gusts up to 20 kt. Seas 2 to
3 ft.
.WED...NW winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to
3 ft.
.WED NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft.

$$

ANZ152-190915-
Coastal Waters from Port Clyde, ME to Cape Elizabeth, ME out 25 NM-
314 PM EDT Fri Apr 18 2025

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

.TONIGHT...S winds 15 to 20 kt, increasing to 20 to 25 kt late this
evening and overnight. Seas 3 to 5 ft, building to 5 to 6 ft after
midnight. Wave Detail: S 5 ft at 5 seconds, becoming S 6 ft at
6 seconds. Isolated showers late this evening. Scattered showers
after midnight.
.SAT...SW winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Seas 5 to 7 ft. Wave Detail: S 6 ft at 7 seconds.
.SAT NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to
7 ft. Wave Detail: S 6 ft at 8 seconds.
.SUN...NW winds around 20 kt with gusts up to 30 kt. Seas 4 to 6 ft.
Wave Detail: S 5 ft at 8 seconds and W 4 ft at 4 seconds.
.SUN NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. Gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: NW 4 ft at
4 seconds and S 2 ft at 8 seconds.
.MON...NW winds 5 to 10 kt with gusts up to 20 kt, becoming SW in
the afternoon. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 4 seconds and
S 2 ft at 8 seconds.
.MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. Scattered showers in the evening, then showers likely after
midnight.
.TUE...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft.
Showers likely, mainly in the morning.
.TUE NIGHT...SW winds 10 to 15 kt, becoming NW 5 to 10 kt after
midnight. Seas 3 to 4 ft.
.WED...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas
around 3 ft.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.

$$

ANZ150-190915-
Coastal Waters from Stonington, ME to Port Clyde, ME out 25 NM-
314 PM EDT Fri Apr 18 2025

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

.TONIGHT...S winds 15 to 20 kt, becoming SW 20 to 25 kt after
midnight. Seas 3 to 5 ft, building to 5 to 6 ft after midnight. Wave
Detail: S 5 ft at 5 seconds, becoming S 6 ft at 6 seconds. Isolated
showers late this evening. Scattered showers after midnight.
.SAT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 8 ft.
Wave Detail: S 7 ft at 7 seconds. A chance of showers in the morning
with vsby 1 to 3 NM.
.SAT NIGHT...SW winds 20 to 25 kt, becoming W 15 to 20 kt after
midnight. Seas 5 to 8 ft. Wave Detail: S 7 ft at 8 seconds.
.SUN...W winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft.
Wave Detail: S 6 ft at 8 seconds and W 4 ft at 5 seconds.
.SUN NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. Gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: NW 4 ft at
5 seconds and S 3 ft at 8 seconds.
.MON...NW winds 10 to 15 kt with gusts up to 20 kt, becoming SW 5 to
10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NW 2 ft at
4 seconds and S 2 ft at 8 seconds.
.MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. Scattered showers after midnight.
.TUE...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft.
Showers likely.
.TUE NIGHT...SW winds 10 to 15 kt, becoming NW 5 to 10 kt after
midnight. Seas 3 to 4 ft. Scattered showers in the evening.
.WED...NW winds 5 to 10 kt, becoming W in the afternoon. Seas 3 to
4 ft.
.WED NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft.

$$

ANZ153-190915-
Casco Bay-
314 PM EDT Fri Apr 18 2025

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

.TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Isolated showers late this evening and early morning.
Scattered showers towards daybreak.
.SAT...S winds 15 to 20 kt, becoming SW 10 to 15 kt in the
afternoon. Seas 2 to 4 ft. A chance of showers in the afternoon.
.SAT NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft.
.SUN...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft.
.SUN NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt,
diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft.
.MON...NW winds around 5 kt, becoming S in the afternoon. Seas
around 2 ft in the morning, then 1 foot or less.
.MON NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Scattered showers
in the evening, then showers likely after midnight.
.TUE...S winds 10 to 15 kt. Seas around 2 ft. Showers likely, mainly
in the morning.
.TUE NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas
2 to 3 ft.
.WED...NW winds around 5 kt, becoming SW in the afternoon. Seas 2 to
3 ft.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.

$$

ANZ151-190915-
Penobscot Bay-
314 PM EDT Fri Apr 18 2025

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

.TONIGHT...S winds 5 to 10 kt with gusts up to 20 kt, increasing to
15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. Wave Detail: S
3 ft at 5 seconds. Isolated showers late this evening. Scattered
showers after midnight, then numerous showers towards daybreak.
.SAT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft.
Wave Detail: S 4 ft at 6 seconds. Numerous showers in the morning
with vsby 1 to 3 NM.
.SAT NIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt after
midnight. Seas 3 to 5 ft. Wave Detail: S 4 ft at 7 seconds.
.SUN...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft.
Wave Detail: S 4 ft at 8 seconds.
.SUN NIGHT...NW 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 2 to 4 ft. Wave Detail: NW 2 ft at 3 seconds and S 2 ft at
8 seconds.
.MON...NW winds 5 to 10 kt with gusts up to 20 kt, becoming SW in
the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds.
.MON NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Scattered showers
after midnight.
.TUE...SE winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft.
Showers likely.
.TUE NIGHT...E winds 5 to 10 kt, becoming NW after midnight. Seas
2 to 3 ft. Scattered showers in the evening.
.WED...NW winds 5 to 10 kt. Seas 2 to 3 ft.
.WED NIGHT...W winds 5 to 10 kt. Seas around 2 ft.

$$