National Weather Service Marine Forecast FZUS51 KGYX

FZUS51 KGYX 211509
CWFGYX

Coastal Waters Forecast
National Weather Service Gray ME
1109 AM EDT Tue Jul 21 2026

COASTAL WATERS FROM STONINGTON ME TO MERRIMACK RIVER MA OUT TO 60 NM

ANZ100-220515
1109 AM EDT Tue Jul 21 2026

Synopsis for Stonington ME to Merrimack River Ma out to 60 NM

Southerly winds will increase ahead of an approaching front this afternoon. Mainly outside of the bays winds will gust at or above 25 knots. Seas will also build over 5 feet by this evening and remain there into Wednesday. Areas of fog may develop tonight ahead of the front and linger through the day Wednesday. A cold front will cross the waters during the afternoon, and that will usher in another high pressure. This will also allow winds and seas to gradually diminish.

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ANZ151-220515
Penobscot Bay
1109 AM EDT Tue Jul 21 2026

REST OF TODAY
S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 5 seconds.

TONIGHT
SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 6 seconds. Rain and scattered tstms. Patchy dense fog. Vsby 1 NM or less.

WED
S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 7 seconds. Patchy fog in the morning. A chance of showers. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon.

WED NIGHT
SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 3 to 5 ft. Wave Detail: S 5 ft at 8 seconds. A chance of showers in the evening.

THU
W winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: S 4 ft at 9 seconds.

THU NIGHT
SW winds 5 to 10 kt, becoming W after midnight. Seas 2 to 4 ft. Wave Detail: S 3 ft at 9 seconds.

FRI
W winds around 5 kt, becoming S in the afternoon. Seas 2 to 3 ft.

FRI NIGHT
SW winds around 5 kt. Seas 2 to 3 ft.

SAT
S winds around 5 kt. Seas around 2 ft.

SAT NIGHT
SW winds around 5 kt. Seas around 2 ft.

Winds and seas higher in and near tstms.

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ANZ153-220515
Casco Bay
1109 AM EDT Tue Jul 21 2026

REST OF TODAY
S winds 10 to 15 kt, becoming SE 15 to 20 kt this afternoon. Seas 2 to 3 ft. A slight chance of showers late.

TONIGHT
S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Rain and scattered tstms. Patchy fog after midnight. Vsby 1 NM or less.

WED
S winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 2 to 4 ft. A chance of showers in the morning. Patchy fog in the morning with vsby 1 NM or less.

WED NIGHT
SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 4 ft.

THU
W winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to 4 ft.

THU NIGHT
SW winds 5 to 10 kt, becoming W after midnight. Seas 2 to 4 ft.

FRI
W winds around 5 kt, becoming S in the afternoon. Seas 2 to 3 ft.

FRI NIGHT
S winds 5 to 10 kt, becoming SW after midnight. Seas 2 to 3 ft.

SAT
SE winds around 5 kt, becoming S in the afternoon. Seas around 2 ft.

SAT NIGHT
S winds 5 to 10 kt, becoming SW after midnight. Seas 2 to 3 ft.

Winds and seas higher in and near tstms.

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ANZ150-220515
Coastal Waters from Stonington, ME to Port Clyde, ME out 25 NM
1109 AM EDT Tue Jul 21 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH WEDNESDAY AFTERNOON

REST OF TODAY
S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 5 seconds.

TONIGHT
SE winds 15 to 20 kt with gusts up to 30 kt. 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 7 seconds. Rain and scattered tstms. Patchy dense fog. Vsby 1 NM or less.

WED
S winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 8 ft. Wave Detail: S 8 ft at 8 seconds. A chance of showers. Patchy fog in the morning. Patchy fog in the afternoon. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon.

WED NIGHT
SW winds 15 to 20 kt with gusts up to 30 kt, becoming W 10 to 15 kt with gusts up to 20 kt after midnight. Seas 6 to 8 ft. Wave Detail: S 8 ft at 8 seconds.

THU
W winds 5 to 10 kt. Seas 5 to 7 ft. Wave Detail: S 7 ft at 9 seconds.

THU NIGHT
W winds 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: S 5 ft at 9 seconds.

FRI
W winds around 5 kt, becoming SW in the afternoon. Seas 3 to 4 ft.

FRI NIGHT
SW winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas 2 to 3 ft.

SAT
S winds around 5 kt. Seas 2 to 3 ft.

SAT NIGHT
S winds around 5 kt. Seas 2 to 3 ft.

Winds and seas higher in and near tstms.

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ANZ152-220515
Coastal Waters from Port Clyde, ME to Cape Elizabeth, ME out 25 NM
1109 AM EDT Tue Jul 21 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH WEDNESDAY AFTERNOON

REST OF TODAY
S winds 15 to 20 kt. Seas around 3 ft. Wave Detail: S 3 ft at 5 seconds.

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. Rain and scattered tstms. Patchy fog. Vsby 1 NM or less.

WED
S winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 7 ft. Wave Detail: S 7 ft at 8 seconds. A chance of showers and tstms in the morning. Patchy fog in the morning with vsby 1 NM or less.

WED NIGHT
SW winds 15 to 20 kt with gusts up to 30 kt, becoming W 10 to 15 kt with gusts up to 20 kt after midnight. Seas 5 to 8 ft. Wave Detail: S 7 ft at 8 seconds.

THU
W winds 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: S 6 ft at 9 seconds.

THU NIGHT
SW winds 5 to 10 kt, becoming W after midnight. Seas 3 to 5 ft. Wave Detail: SE 4 ft at 9 seconds.

FRI
W winds around 5 kt, becoming S in the afternoon. Seas 3 to 4 ft.

FRI NIGHT
SW winds around 5 kt. Seas 2 to 3 ft.

SAT
S winds around 5 kt. Seas 2 to 3 ft.

SAT NIGHT
S winds around 5 kt. Seas 2 to 3 ft.

Winds and seas higher in and near tstms.

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ANZ154-220515
Coastal Waters from Cape Elizabeth, ME to Merrimack River, MA out 25 NM
1109 AM EDT Tue Jul 21 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH WEDNESDAY AFTERNOON

REST OF TODAY
S winds 10 to 15 kt, becoming SE 15 to 20 kt late. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 5 seconds. A slight chance of showers early this afternoon. A chance of showers and scattered tstms late.

TONIGHT
S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 6 seconds. Rain and scattered tstms in the evening. Patchy fog. Vsby 1 NM or less.

WED
S winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 7 seconds. Patchy fog in the morning. A chance of showers. Vsby 1 NM or less in the morning.

WED NIGHT
SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 8 seconds. A chance of showers and tstms in the evening.

THU
W winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 9 seconds.

THU NIGHT
SW winds around 5 kt. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 9 seconds.

FRI
NW winds around 5 kt, becoming SE in the afternoon. Seas 2 to 3 ft.

FRI NIGHT
S winds around 5 kt. Seas around 2 ft.

SAT
SE winds around 5 kt. Seas around 2 ft.

SAT NIGHT
SE winds around 5 kt, becoming N around 5 kt after midnight. Seas around 2 ft.

Winds and seas higher in and near tstms.

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ANZ180-220515
Waters from Stonington ME to Port Clyde ME from 25 to 60 NM
1109 AM EDT Tue Jul 21 2026

REST OF TODAY
SE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 5 seconds.

TONIGHT
S winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 5 ft, building to 5 to 7 ft after midnight. Wave Detail: SE 5 ft at 6 seconds, becoming S 7 ft at 7 seconds. Rain and scattered tstms. Patchy fog. Vsby 1 NM or less.

WED
S winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to 7 ft, building to 7 to 9 ft in the afternoon. Wave Detail: S 7 ft at 7 seconds, becoming S 9 ft at 8 seconds. Showers likely in the morning. Patchy fog in the morning with vsby 1 NM or less.

WED NIGHT
SW winds 20 to 25 kt with gusts up to 30 kt, diminishing to 15 to 20 kt after midnight. Seas 7 to 9 ft. Wave Detail: S 9 ft at 9 seconds. A chance of showers.

THU
W winds around 10 kt. Seas 5 to 7 ft. Wave Detail: S 7 ft at 9 seconds. A chance of showers in the morning.

THU NIGHT
SW winds 5 to 10 kt, becoming NW after midnight. Seas 4 to 6 ft. Wave Detail: S 5 ft at 9 seconds.

FRI
NW winds around 5 kt, becoming SW in the afternoon. Seas 3 to 4 ft.

FRI NIGHT
SW winds 5 to 10 kt. Seas around 3 ft.

SAT
SE winds around 5 kt. Seas around 3 ft.

SAT NIGHT
SE winds around 5 kt. Seas 2 to 3 ft.

Winds and seas higher in and near tstms.

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ANZ182-220515
Waters from Port Clyde ME to Cape Elizabeth ME from 25 to 60 NM
1109 AM EDT Tue Jul 21 2026

REST OF TODAY
SE winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 5 seconds.

TONIGHT
SE winds 15 to 20 kt, becoming S 20 to 25 kt after midnight. Seas 4 to 5 ft, building to 5 to 7 ft after midnight. Wave Detail: SE 5 ft at 5 seconds, becoming S 7 ft at 7 seconds. Rain and scattered tstms. Patchy fog. Vsby 1 NM or less.

WED
S winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to 8 ft. Wave Detail: S 8 ft at 7 seconds. A chance of showers in the morning with vsby 1 NM or less.

WED NIGHT
SW winds 20 to 25 kt with gusts up to 30 kt, becoming W 10 to 15 kt with gusts up to 20 kt after midnight. Seas 6 to 9 ft. Wave Detail: S 8 ft at 8 seconds. A chance of showers.

THU
W winds 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: S 6 ft at 9 seconds.

THU NIGHT
SW winds 5 to 10 kt, becoming W after midnight. Seas 3 to 5 ft. Wave Detail: S 4 ft at 9 seconds.

FRI
NW winds around 5 kt, becoming S in the afternoon. Seas 3 to 4 ft.

FRI NIGHT
S winds around 5 kt. Seas around 3 ft.

SAT
SE winds around 5 kt. Seas around 3 ft.

SAT NIGHT
SE winds around 5 kt. Seas 2 to 3 ft.

Winds and seas higher in and near tstms.

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ANZ184-220515
Waters from Cape Elizabeth ME to Merrimack River MA from 25 to 60 NM
1109 AM EDT Tue Jul 21 2026

REST OF TODAY
SE winds around 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 5 seconds.

TONIGHT
S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: S 6 ft at 6 seconds. Rain and scattered tstms. Patchy fog. Vsby 1 NM or less.

WED
S winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: S 6 ft at 7 seconds. A chance of showers in the morning with vsby 1 NM or less.

WED NIGHT
SW winds 15 to 20 kt, becoming W 10 to 15 kt after midnight. Seas 5 to 7 ft. Wave Detail: S 6 ft at 8 seconds. A chance of showers and tstms in the evening.

THU
W winds 5 to 10 kt, becoming SW in the afternoon. Seas 4 to 5 ft. Wave Detail: S 5 ft at 9 seconds.

THU NIGHT
SW winds around 5 kt, becoming W after midnight. Seas 3 to 4 ft. Wave Detail: S 4 ft at 8 seconds.

FRI
NW winds around 5 kt, becoming S in the afternoon. Seas around 3 ft.

FRI NIGHT
S winds around 5 kt. Seas 2 to 3 ft.

SAT
SE winds around 5 kt. Seas 2 to 3 ft.

SAT NIGHT
SE winds around 5 kt. Seas 2 to 3 ft.

Winds and seas higher in and near tstms.