COASTAL WATERS FROM STONINGTON ME TO MERRIMACK RIVER MA OUT TO 25 NM
ANZ100-240100
707 AM EST Tue Dec 23 2025
Synopsis for Stonington ME to Merrimack River Ma out to 25 NM
Low pressure tracks SE across New England today with an inverted trough developing over the waters tonight. Periods of heavy snow will be possible with winds shifting SE to NW within the inverted trough. The system exits Wednesday with a brief period of gusty north winds Wednesday morning. High pressure builds in from the north late Wednesday through Wednesday night. A cold front then crosses the waters late Thursday bringing a period of gusty northwest winds Thursday night.
ANZ154-240100
Coastal Waters from Cape Elizabeth, ME to Merrimack River, MA out 25 NM
707 AM EST Tue Dec 23 2025
TODAY
NW winds 5 to 10 kt, becoming SE late this morning and early afternoon, then increasing to 10 to 15 kt with gusts up to 20 kt late. Seas around 2 ft. A slight chance of snow late this morning. A chance of snow and rain early this afternoon, then rain with snow likely late. Vsby 1 to 3 NM late this morning and afternoon.
TONIGHT
SE winds 10 to 15 kt with gusts up to 20 kt, becoming W 15 to 20 kt with gusts up to 30 kt after midnight. Seas 2 to 4 ft. Wave Detail: W 3 ft at 3 seconds and S 2 ft at 4 seconds. Rain with snow likely. Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight.
WED
N winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 5 ft, building to 5 to 7 ft in the afternoon. Wave Detail: NW 4 ft at 4 seconds and E 3 ft at 5 seconds, becoming NE 5 ft at 6 seconds. Snow likely, mainly in the morning. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon.
WED NIGHT
N winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Seas 4 to 6 ft. Wave Detail: E 6 ft at 8 seconds.
THU
W winds 10 to 15 kt with gusts up to 20 kt, increasing to 15 to 20 kt with gusts up to 30 kt in the afternoon. Seas 5 to 6 ft. Wave Detail: E 6 ft at 9 seconds and W 3 ft at 3 seconds.
THU NIGHT
NW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: E 5 ft at 10 seconds and NW 4 ft at 4 seconds.
FRI
NW winds 15 to 20 kt, becoming N 10 to 15 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 6 ft.
FRI NIGHT
NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. A chance of snow. Vsby 1 NM or less.
SAT
NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. A chance of snow. Vsby 1 NM or less.
SAT NIGHT
N winds around 10 kt, becoming E after midnight. Seas 2 to 3 ft. A chance of snow. A chance of rain after midnight. Vsby 1 NM or less.
ANZ152-240100
Coastal Waters from Port Clyde, ME to Cape Elizabeth, ME out 25 NM
707 AM EST Tue Dec 23 2025
TODAY
N winds 5 to 10 kt, becoming E late this morning, then becoming SE early this afternoon, increasing to 10 to 15 kt with gusts up to 20 kt late. Seas around 2 ft. Wave Detail: E 2 ft at 3 seconds. A chance of snow early this afternoon. Snow and rain likely late. Vsby 1 to 3 NM this afternoon.
TONIGHT
SE winds 10 to 15 kt with gusts up to 20 kt, becoming E 15 to 20 kt with gusts up to 30 kt after midnight. Seas 2 to 3 ft, building to 4 to 6 ft after midnight. Wave Detail: SE 3 ft at 4 seconds, becoming SE 5 ft at 5 seconds. Rain and snow. Vsby 1 NM or less.
WED
N winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 35 kt. Seas 5 to 7 ft. Wave Detail: NE 6 ft at 6 seconds. Snow likely, mainly in the morning. Vsby 1 NM or less.
WED NIGHT
N winds 10 to 15 kt, becoming NW 5 to 10 kt after midnight. Seas 5 to 7 ft. Wave Detail: E 6 ft at 8 seconds.
THU
W winds 10 to 15 kt with gusts up to 20 kt, increasing to 15 to 20 kt with gusts up to 30 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: E 5 ft at 9 seconds and W 4 ft at 4 seconds. A chance of snow showers. Vsby 1 NM or less.
THU NIGHT
NW winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to 7 ft. Wave Detail: NW 5 ft at 4 seconds and E 4 ft at 10 seconds.
FRI
N winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft, subsiding to 2 to 4 ft in the afternoon.
FRI NIGHT
N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of snow after midnight.
SAT
NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of snow. Vsby 1 NM or less.
SAT NIGHT
NE winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of snow after midnight.
ANZ150-240100
Coastal Waters from Stonington, ME to Port Clyde, ME out 25 NM
707 AM EST Tue Dec 23 2025
TODAY
NE winds 5 to 10 kt, becoming SE with gusts up to 20 kt this afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 3 seconds. A slight chance of snow early this afternoon. A chance of snow with a slight chance of rain late with vsby 1 to 3 NM.
TONIGHT
SE winds 10 to 15 kt, becoming E 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft, building to 4 to 6 ft after midnight. Wave Detail: SE 4 ft at 4 seconds, becoming SE 6 ft at 6 seconds. Rain and snow. Vsby 1 NM or less.
WED
NE winds 20 to 25 kt, becoming N 15 to 20 kt in the afternoon. Gusts up to 35 kt. Seas 5 to 8 ft. Wave Detail: E 7 ft at 8 seconds. Snow and rain in the morning, then a chance of snow in the afternoon. Vsby 1 NM or less.
WED NIGHT
N winds 10 to 15 kt with gusts up to 20 kt, becoming NW 5 to 10 kt after midnight. Seas 5 to 7 ft. Wave Detail: E 7 ft at 8 seconds.
THU
W winds 10 to 15 kt with gusts up to 20 kt, becoming NW 15 to 20 kt with gusts up to 30 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: SE 5 ft at 9 seconds and W 4 ft at 4 seconds. A chance of snow showers. Vsby 1 NM or less.
THU NIGHT
NW winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 6 ft. Wave Detail: NW 5 ft at 4 seconds and E 4 ft at 11 seconds.
FRI
N winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft.
FRI NIGHT
N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of snow after midnight.
SAT
N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of snow. Vsby 1 NM or less.
SAT NIGHT
NE winds around 10 kt. Seas 2 to 3 ft. A chance of snow after midnight with vsby 1 NM or less.
ANZ153-240100
Casco Bay
707 AM EST Tue Dec 23 2025
TODAY
NE winds 5 to 10 kt, becoming SE this afternoon. Seas around 2 ft. A chance of snow early this afternoon. Snow with a slight chance of rain late. Vsby 1 to 3 NM this afternoon.
TONIGHT
SE winds around 10 kt, becoming NE after midnight. Seas 2 to 3 ft. Rain, snow. Vsby 1 NM or less.
WED
N winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Snow likely, mainly in the morning. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon.
WED NIGHT
N winds 5 to 10 kt, becoming W after midnight. Seas 2 to 4 ft.
THU
W winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 25 kt in the afternoon. Seas 2 to 4 ft.
THU NIGHT
NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft.
FRI
N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft.
FRI NIGHT
N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of snow after midnight.
SAT
N winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. A chance of snow. Vsby 1 NM or less.
SAT NIGHT
N winds 5 to 10 kt. Seas around 2 ft. A chance of snow. Vsby 1 NM or less.
ANZ151-240100
Penobscot Bay
707 AM EST Tue Dec 23 2025
TODAY
NE winds around 5 kt, becoming SE this afternoon. Seas 1 foot or less. A chance of snow late with vsby 1 to 3 NM.
TONIGHT
E winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas 2 to 4 ft. Wave Detail: S 2 ft at 5 seconds. Snow in the evening, then snow and rain after midnight. Vsby 1 NM or less.
WED
NE winds 15 to 20 kt, becoming N 10 to 15 kt in the afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. Wave Detail: NE 2 ft at 3 seconds and S 2 ft at 6 seconds. Snow, mainly in the morning. Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon.
WED NIGHT
NW winds 5 to 10 kt. Seas 2 to 3 ft.
THU
W winds 5 to 10 kt, becoming NW 10 to 15 kt with gusts up to 25 kt in the afternoon. Seas 2 to 3 ft. A chance of snow showers. Vsby 1 NM or less.
THU NIGHT
NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 3 seconds.
FRI
N winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft.
FRI NIGHT
N winds around 10 kt. Seas 1 foot or less.
SAT
N winds 5 to 10 kt. Seas 1 foot or less. A chance of snow in the morning. Vsby 1 NM or less.
SAT NIGHT
N winds 5 to 10 kt. Seas 1 foot or less.