FZUS51 KBOX 240005
CWFBOX
Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
705 PM EST Tue Dec 23 2025
Coastal waters from the Merrimack River MA to Watch Hill RI out
to 25 NM
ANZ200-241300-
705 PM EST Tue Dec 23 2025
.Synopsis for Massachusetts and Rhode Island coastal waters...
Low pres shifts east of the region tonight as it intensifies. This
increasing pressure gradient will result in Gale forecast NNW winds
developing by daybreak Wed and continuing into the afternoon. High
pres builds in from the west late Wed into Wed night. This will be
followed by a strong cold front late Thu into Thu night. A wave of
low pres should then pass to our south late Fri into Sat with a
ridge of high pres building in from the west by Sun.
$$
ANZ250-241300-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
705 PM EST Tue Dec 23 2025
...GALE WARNING IN EFFECT FROM 5 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...
.TONIGHT...SE winds 10 to 15 kt, becoming SW with gusts up to
25 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 2 ft at
3 seconds and E 1 foot at 10 seconds. Showers. Vsby 1 to 3 NM.
.WED...NW winds 25 to 30 kt, becoming N in the afternoon. Gusts
up to 40 kt. Seas 4 to 6 ft, building to 6 to 9 ft in the
afternoon. Wave Detail: NW 5 ft at 5 seconds and E 1 foot at
6 seconds, becoming N 7 ft at 7 seconds and E 7 ft at 9 seconds.
A chance of showers in the morning, then rain and snow showers in
the afternoon with vsby 1 to 3 NM.
.WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt, becoming
W 10 to 15 kt after midnight. Seas 6 to 8 ft, subsiding to 5 to
6 ft after midnight. Wave Detail: E 8 ft at 9 seconds and N 4 ft
at 6 seconds, becoming E 6 ft at 9 seconds and N 2 ft at
6 seconds.
.THU...SW winds 15 to 20 kt, becoming W 20 to 25 kt in the
afternoon. Gusts up to 30 kt. Seas 5 to 6 ft. Wave Detail: E 6 ft
at 9 seconds and W 5 ft at 4 seconds. A chance of snow in the
morning, then a chance of rain in the afternoon.
.THU NIGHT...NW winds 25 to 30 kt. Seas 6 to 9 ft. Wave Detail: N
8 ft at 7 seconds and E 4 ft at 10 seconds. A chance of light
freezing spray after midnight.
.FRI...N winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas 5 to 8 ft. Wave Detail: N 8 ft
at 7 seconds and E 3 ft at 11 seconds. A chance of light freezing
spray in the morning.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. A chance of
snow after midnight.
.SAT...NE winds 10 to 15 kt. Seas 4 to 5 ft. A chance of snow.
.SAT NIGHT...N winds 5 to 10 kt. Seas 3 to 4 ft.
.SUN...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft. Rain likely.
.SUN NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas
4 to 6 ft. Rain.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ251-241300-
Massachusetts Bay and Ipswich Bay-
705 PM EST Tue Dec 23 2025
...GALE WARNING IN EFFECT FROM 5 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...
.TONIGHT...SE winds 10 to 15 kt, becoming SW with gusts up to
25 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 2 ft at
3 seconds and E 1 foot at 10 seconds. Showers. Vsby 1 NM or less.
.WED...NW winds 20 to 25 kt, becoming N 25 to 30 kt in the
afternoon. Gusts up to 40 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
1 foot at 5 seconds, becoming N 5 ft at 6 seconds and E 2 ft at
9 seconds. A chance of showers in the morning, then snow and rain
showers likely in the afternoon with vsby 1 to 3 NM.
.WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt, becoming
W 5 to 10 kt after midnight. Seas 5 to 7 ft. Wave Detail: N 7 ft
at 7 seconds.
.THU...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W
20 to 25 kt with gusts up to 30 kt in the afternoon. Seas 3 to
5 ft. Wave Detail: E 5 ft at 9 seconds and W 3 ft at 4 seconds. A
chance of snow.
.THU NIGHT...NW winds 25 to 30 kt, diminishing to 20 to 25 kt
after midnight. Seas 4 to 6 ft. Wave Detail: N 5 ft at 5 seconds
and E 4 ft at 10 seconds. A chance of light freezing spray after
midnight.
.FRI...NW winds 20 to 25 kt, becoming N 10 to 15 kt in the
afternoon. Seas 3 to 5 ft. Wave Detail: N 5 ft at 6 seconds and E
3 ft at 11 seconds. A chance of light freezing spray in the
morning.
.FRI NIGHT...NE winds around 10 kt. Seas 3 to 4 ft. A chance of
snow.
.SAT...NE winds 10 to 15 kt. Seas 3 to 4 ft. A chance of snow.
.SAT NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft.
.SUN...S winds 15 to 20 kt. Seas 2 to 3 ft. Rain likely with a
chance of snow. Vsby 1 to 3 NM.
.SUN NIGHT...SW winds 20 to 25 kt. Seas 3 to 4 ft. Rain likely.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ231-241300-
Cape Cod Bay-
705 PM EST Tue Dec 23 2025
...GALE WARNING IN EFFECT FROM 5 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...
.TONIGHT...SE winds around 10 kt, becoming SW with gusts up to
25 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at
3 seconds and SE 1 foot at 3 seconds. Showers. Vsby 1 to 3 NM.
.WED...NW winds 20 to 25 kt, becoming N 25 to 30 kt in the
afternoon. Gusts up to 40 kt. Seas 5 to 7 ft. Wave Detail: N 6 ft
at 6 seconds and E 3 ft at 10 seconds. A chance of showers in the
morning, then showers likely in the afternoon with vsby 1 to
3 NM.
.WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt, becoming
W 5 to 10 kt after midnight. Seas 4 to 6 ft, subsiding to 2 to
4 ft after midnight. Wave Detail: N 5 ft at 6 seconds and E 5 ft
at 9 seconds, becoming NE 4 ft at 9 seconds and N 3 ft at
6 seconds.
.THU...SW winds 10 to 15 kt, becoming W 20 to 25 kt in the
afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft
at 10 seconds and W 3 ft at 4 seconds. A chance of rain. A chance
of snow in the morning.
.THU NIGHT...NW winds 25 to 30 kt. Seas 5 to 7 ft. Wave Detail: N
7 ft at 6 seconds and E 3 ft at 10 seconds. A chance of light
freezing spray after midnight.
.FRI...N winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Seas 4 to 6 ft. Wave Detail: N 6 ft at 7 seconds and E
2 ft at 11 seconds. A chance of light freezing spray in the
morning.
.FRI NIGHT...NE winds 5 to 10 kt. Seas 3 to 4 ft. A chance of
snow.
.SAT...NE winds around 10 kt. Seas around 3 ft. A chance of snow.
.SAT NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft.
.SUN AND SUN NIGHT...S winds 10 to 15 kt, becoming SW 20 to
25 kt. Seas 2 to 4 ft. Rain.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ254-241300-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
705 PM EST Tue Dec 23 2025
...GALE WARNING IN EFFECT FROM 5 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...
.TONIGHT...SE winds 10 to 15 kt, becoming SW with gusts up to
25 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at
4 seconds and E 2 ft at 4 seconds. Showers likely. Vsby 1 to
3 NM.
.WED...NW winds 25 to 30 kt, becoming N in the afternoon. Gusts
up to 45 kt. Seas 4 to 6 ft, building to 6 to 9 ft in the
afternoon. Wave Detail: NW 6 ft at 5 seconds and E 1 foot at
5 seconds, becoming N 7 ft at 6 seconds and E 4 ft at 10 seconds.
A chance of showers. Vsby 1 to 3 NM in the afternoon.
.WED NIGHT...N winds 15 to 20 kt with gusts up to 30 kt, becoming
NW 5 to 10 kt after midnight. Seas 6 to 9 ft, subsiding to 5 to
7 ft after midnight. Wave Detail: NE 8 ft at 9 seconds and N 6 ft
at 6 seconds, becoming E 7 ft at 9 seconds and N 3 ft at
6 seconds.
.THU...SW winds 15 to 20 kt, becoming W 20 to 25 kt in the
afternoon. Gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: E 7 ft
at 10 seconds and W 5 ft at 5 seconds. A chance of rain.
.THU NIGHT...NW winds 25 to 30 kt. Seas 6 to 9 ft. Wave Detail: N
8 ft at 7 seconds and E 5 ft at 11 seconds. A chance of rain in
the evening.
.FRI...N winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas 7 to 9 ft, subsiding to 5 to
8 ft in the afternoon. Wave Detail: N 8 ft at 7 seconds and E
7 ft at 11 seconds, becoming NW 7 ft at 7 seconds. A chance of
light freezing spray in the morning.
.FRI NIGHT...N winds 10 to 15 kt, becoming NE 5 to 10 kt after
midnight. Seas 4 to 6 ft. A chance of snow after midnight.
.SAT...NE winds 10 to 15 kt. Seas 4 to 5 ft. A chance of snow.
.SAT NIGHT...NE winds 5 to 10 kt. Seas 3 to 5 ft.
.SUN...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Rain likely.
.SUN NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas
4 to 6 ft. Rain.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ255-241300-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
705 PM EST Tue Dec 23 2025
...GALE WARNING IN EFFECT FROM 5 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...
.TONIGHT...SE winds 10 to 15 kt, becoming W 15 to 20 kt with
gusts up to 30 kt after midnight. Seas 3 to 5 ft. Wave Detail: SW
5 ft at 6 seconds and NE 1 foot at 5 seconds. Showers likely,
mainly this evening.
.WED...NW winds 25 to 30 kt with gusts up to 40 kt. Seas 5 to
8 ft. Wave Detail: W 8 ft at 7 seconds and N 4 ft at 5 seconds. A
chance of showers in the afternoon.
.WED NIGHT...N winds 20 to 25 kt with gusts up to 30 kt, becoming
NW 5 to 10 kt after midnight. Seas 4 to 6 ft. Wave Detail: N 6 ft
at 6 seconds and E 6 ft at 10 seconds.
.THU...SW winds 20 to 25 kt, becoming W 25 to 30 kt in the
afternoon. Seas 5 to 7 ft. Wave Detail: W 7 ft at 7 seconds and E
6 ft at 10 seconds. A chance of rain.
.THU NIGHT...NW winds 25 to 30 kt. Seas 5 to 7 ft. Wave Detail:
NW 7 ft at 7 seconds and E 5 ft at 10 seconds. A chance of rain
in the evening. A chance of light freezing spray after midnight.
.FRI...N winds 20 to 25 kt with gusts up to 30 kt, diminishing to
15 to 20 kt in the afternoon. Seas 5 to 7 ft. Wave Detail: N 6 ft
at 6 seconds and E 4 ft at 11 seconds. A chance of light freezing
spray in the morning.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. A chance of
snow. Vsby 1 to 3 NM after midnight.
.SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. A chance of snow. Vsby 1 to 3 NM.
.SAT NIGHT...NE winds 10 to 15 kt. Seas 2 to 4 ft.
.SUN...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Rain likely.
.SUN NIGHT...SW winds 25 to 35 kt. Seas 5 to 7 ft. Rain.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ256-241300-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
705 PM EST Tue Dec 23 2025
...GALE WARNING IN EFFECT FROM 5 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...
.TONIGHT...S winds 10 to 15 kt, becoming W 15 to 20 kt with gusts
up to 30 kt after midnight. Seas 3 to 5 ft. Wave Detail: W 5 ft
at 5 seconds and SE 1 foot at 10 seconds. A chance of showers
this evening.
.WED...NW winds 25 to 30 kt with gusts up to 40 kt. Seas 5 to
7 ft. Wave Detail: N 7 ft at 6 seconds and SE 1 foot at
10 seconds.
.WED NIGHT...N winds 20 to 25 kt with gusts up to 30 kt, becoming
NW 5 to 10 kt after midnight. Seas 3 to 5 ft, subsiding to 2 to
3 ft after midnight. Wave Detail: N 5 ft at 6 seconds and E
1 foot at 10 seconds, becoming NE 2 ft at 5 seconds and W 2 ft at
6 seconds.
.THU...W winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to
5 ft, building to 5 to 7 ft in the afternoon. Wave Detail: SW
5 ft at 5 seconds and E 3 ft at 11 seconds, becoming W 7 ft at
6 seconds and E 4 ft at 10 seconds. A chance of rain.
.THU NIGHT...N winds 25 to 30 kt. Seas 4 to 6 ft. Wave Detail: N
6 ft at 6 seconds and E 4 ft at 10 seconds.
.FRI...N winds 20 to 25 kt with gusts up to 30 kt, becoming NE
10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 4 to
5 ft, subsiding to 2 to 4 ft in the afternoon. Wave Detail: N
5 ft at 5 seconds and E 3 ft at 11 seconds, becoming W 4 ft at
5 seconds and NE 3 ft at 5 seconds.
.FRI NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 4 ft. A chance of snow in the evening, then
snow likely after midnight. Vsby 1 NM or less.
.SAT...NE winds 15 to 20 kt. Seas 3 to 4 ft. Snow likely with a
chance of rain. Vsby 1 NM or less.
.SAT NIGHT...NE winds 10 to 15 kt. Seas 2 to 4 ft.
.SUN...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Rain likely.
.SUN NIGHT...SW winds 25 to 30 kt with gusts up to 35 kt. Seas
5 to 8 ft. Rain likely.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ232-241300-
Nantucket Sound-
705 PM EST Tue Dec 23 2025
...GALE WARNING IN EFFECT FROM 5 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...
.TONIGHT...SE winds around 10 kt, becoming SW with gusts up to
25 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at
4 seconds and SE 1 foot at 3 seconds. Showers likely. Vsby 1 to
3 NM.
.WED...NW winds 20 to 25 kt, becoming N 25 to 30 kt in the
afternoon. Gusts up to 40 kt. Seas 3 to 5 ft. Wave Detail: W 5 ft
at 4 seconds and NE 3 ft at 5 seconds. A chance of showers in the
afternoon.
.WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt, becoming
NW 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: N 3 ft
at 5 seconds and E 3 ft at 10 seconds.
.THU...SW winds 15 to 20 kt, becoming W 20 to 25 kt in the
afternoon. Seas 3 to 5 ft. Wave Detail: W 4 ft at 5 seconds and E
3 ft at 10 seconds. A chance of rain.
.THU NIGHT...NW winds 25 to 30 kt. Seas 3 to 5 ft. Wave Detail: N
5 ft at 6 seconds and E 3 ft at 10 seconds. A chance of rain in
the evening. A chance of light freezing spray after midnight.
.FRI...N winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Seas 3 to 5 ft. Wave Detail: N 4 ft at 5 seconds and E
2 ft at 11 seconds. A chance of light freezing spray in the
morning.
.FRI NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
snow. Vsby 1 to 3 NM after midnight.
.SAT...NE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of snow.
.SAT NIGHT...NE winds 5 to 10 kt. Seas around 2 ft.
.SUN AND SUN NIGHT...S winds 15 to 20 kt, becoming SW 25 to
30 kt. Seas 2 to 4 ft. Rain.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ233-241300-
Vineyard Sound-
705 PM EST Tue Dec 23 2025
...GALE WARNING IN EFFECT FROM 5 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...
.TONIGHT...SE winds 5 to 10 kt, becoming W 15 to 20 kt with gusts
up to 30 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft
at 5 seconds and SE 1 foot at 3 seconds. Showers likely, mainly
this evening. Vsby 1 to 3 NM.
.WED...NW winds 20 to 25 kt with gusts up to 40 kt. Seas 3 to
4 ft. Wave Detail: W 4 ft at 5 seconds and N 3 ft at 5 seconds. A
chance of showers in the afternoon.
.WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt, becoming
NW 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: N 2 ft
at 5 seconds and E 2 ft at 10 seconds.
.THU...SW winds 15 to 20 kt, becoming W 20 to 25 kt in the
afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. Wave Detail: SW
4 ft at 6 seconds and E 2 ft at 10 seconds. A chance of rain.
.THU NIGHT AND FRI...N winds 20 to 25 kt with gusts up to 30 kt.
Seas 2 to 3 ft. Wave Detail: N 3 ft at 6 seconds and E 2 ft at
11 seconds. A chance of light freezing spray through the day.
.FRI NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt after
midnight. Seas 1 foot or less, then around 2 ft after midnight.
Wave Detail: NE 1 foot at 3 seconds and W 1 foot at 5 seconds,
becoming NE 1 foot at 3 seconds and W 1 foot at 6 seconds. A
chance of snow in the evening, then snow likely after midnight
with vsby 1 to 3 NM.
.SAT...NE winds 10 to 15 kt. Seas around 2 ft. A chance of snow.
.SAT NIGHT...NE winds 5 to 10 kt. Seas around 2 ft.
.SUN...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Rain likely.
.SUN NIGHT...SW winds 25 to 30 kt. Seas 3 to 5 ft. Rain likely.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ234-241300-
Buzzards Bay-
705 PM EST Tue Dec 23 2025
...GALE WARNING IN EFFECT FROM 5 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...
.TONIGHT...SE winds 5 to 10 kt, becoming W 10 to 15 kt with gusts
up to 25 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft
at 5 seconds and SE 1 foot at 3 seconds. Showers likely, mainly
this evening. Vsby 1 to 3 NM.
.WED...NW winds 15 to 20 kt, becoming N 20 to 25 kt in the
afternoon. Gusts up to 35 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft
at 5 seconds and N 3 ft at 5 seconds. A chance of showers in the
afternoon.
.WED NIGHT...N winds 10 to 15 kt with gusts up to 25 kt, becoming
NW 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft
at 10 seconds and N 2 ft at 5 seconds.
.THU...SW winds 15 to 20 kt, becoming W 20 to 25 kt in the
afternoon. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and
E 2 ft at 10 seconds. A chance of rain.
.THU NIGHT AND FRI...N winds 20 to 25 kt. Seas 2 to 4 ft. Wave
Detail: N 3 ft at 5 seconds and E 2 ft at 11 seconds. A chance of
light freezing spray through the day.
.FRI NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
NE 1 foot at 3 seconds and W 1 foot at 5 seconds. A chance of
snow in the evening, then snow likely after midnight with vsby
1 to 3 NM.
.SAT...NE winds 10 to 15 kt. Seas around 2 ft. A chance of snow.
.SAT NIGHT...NE winds 5 to 10 kt. Seas around 2 ft.
.SUN AND SUN NIGHT...S winds 15 to 20 kt, becoming SW 20 to 25 kt
with gusts up to 30 kt. Seas 2 to 4 ft. Rain likely.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ235-241300-
Rhode Island Sound-
705 PM EST Tue Dec 23 2025
...GALE WARNING IN EFFECT FROM 5 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...
.TONIGHT...S winds 5 to 10 kt, becoming W 15 to 20 kt with gusts
up to 30 kt after midnight. Seas 2 to 4 ft. Wave Detail: W 4 ft
at 5 seconds and SE 1 foot at 10 seconds. Showers likely this
evening.
.WED...NW winds 20 to 25 kt, becoming N 25 to 30 kt in the
afternoon. Gusts up to 40 kt. Seas 3 to 5 ft. Wave Detail: N 5 ft
at 5 seconds and SE 1 foot at 10 seconds.
.WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt, becoming
NW 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: N 4 ft
at 5 seconds and E 2 ft at 10 seconds.
.THU...W winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to
5 ft. Wave Detail: W 5 ft at 6 seconds and E 2 ft at 11 seconds.
A chance of rain.
.THU NIGHT AND FRI...N winds 20 to 25 kt with gusts up to 30 kt.
Seas 2 to 4 ft. Wave Detail: N 4 ft at 6 seconds and E 2 ft at
10 seconds.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail:
NE 2 ft at 3 seconds and W 1 foot at 5 seconds. A chance of snow
in the evening, then snow likely after midnight with vsby 1 NM or
less.
.SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Snow likely. Vsby 1 to 3 NM.
.SAT NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft.
.SUN...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Rain likely.
.SUN NIGHT...SW winds 25 to 30 kt. Seas 4 to 6 ft. Rain likely.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ237-241300-
Block Island Sound-
705 PM EST Tue Dec 23 2025
...GALE WARNING IN EFFECT FROM 5 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...
.TONIGHT...SW winds 5 to 10 kt, becoming W 15 to 20 kt with gusts
up to 30 kt after midnight. Seas 2 to 3 ft. Wave Detail: W 3 ft
at 4 seconds and SE 1 foot at 10 seconds. A chance of showers
this evening.
.WED...NW winds 20 to 25 kt with gusts up to 40 kt. Seas 3 to
5 ft. Wave Detail: NW 4 ft at 5 seconds and SE 1 foot at
10 seconds.
.WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt, becoming
NW 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: NE
2 ft at 4 seconds and W 2 ft at 6 seconds.
.THU...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: W 4 ft at 5 seconds and E 2 ft at 11 seconds.
A chance of rain.
.THU NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 4 ft. Wave Detail: N 4 ft at 5 seconds and E 2 ft at
10 seconds. A chance of light freezing spray after midnight.
.FRI...N winds 15 to 20 kt with gusts up to 25 kt, becoming NE
10 to 15 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: N 3 ft
at 5 seconds and E 2 ft at 11 seconds.
.FRI NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt after midnight. Seas 2 to 3 ft. A chance of
snow in the evening, then snow likely after midnight. Vsby 1 NM
or less.
.SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Snow likely. Vsby 1 NM or less.
.SAT NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft.
.SUN...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Rain likely.
.SUN NIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas
4 to 6 ft. Rain likely.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ230-241300-
Boston Harbor-
705 PM EST Tue Dec 23 2025
...GALE WARNING IN EFFECT FROM 5 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...
.TONIGHT...SE winds 5 to 10 kt, becoming SW 10 to 15 kt with
gusts up to 25 kt after midnight. Waves 1 foot or less, then
around 2 ft after midnight. Showers, mainly this evening. Vsby
1 to 3 NM, decreasing to 1 NM or less after midnight.
.WED...NW winds 20 to 25 kt, becoming N in the afternoon. Gusts
up to 35 kt. Waves around 2 ft, except 3 to 5 ft at the outer
harbor entrance. A chance of showers. Snow showers likely in the
afternoon.
.WED NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt,
becoming W 5 to 10 kt after midnight. Waves around 2 ft in the
evening, then 1 foot or less. At the outer harbor entrance, waves
3 to 5 ft.
.THU...SW winds 10 to 15 kt, becoming W 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Waves around 2 ft. A chance of snow
in the morning.
.THU NIGHT AND FRI...N winds 20 to 25 kt with gusts up to 30 kt.
Waves around 2 ft, except 3 to 5 ft at the outer harbor entrance.
.FRI NIGHT...N winds 5 to 10 kt. Waves 1 foot or less. A chance
of snow.
.SAT...NE winds 5 to 10 kt. Waves 1 foot or less. A chance of
snow.
.SAT NIGHT...N winds 5 to 10 kt. Waves 1 foot or less.
.SUN...S winds 10 to 15 kt with gusts up to 20 kt. Waves around
2 ft. Rain likely with a chance of snow.
.SUN NIGHT...SW winds 20 to 25 kt. Waves around 2 ft. Rain
likely.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ236-241300-
Narragansett Bay-
705 PM EST Tue Dec 23 2025
...GALE WARNING IN EFFECT FROM 5 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...
.TONIGHT...S winds 5 to 10 kt, becoming W 10 to 15 kt with gusts
up to 25 kt after midnight. Waves 2 to 3 ft. Showers likely this
evening with vsby 1 to 3 NM.
.WED...NW winds 15 to 20 kt, becoming N 20 to 25 kt in the
afternoon. Gusts up to 35 kt. Waves around 3 ft.
.WED NIGHT...N winds 10 to 15 kt with gusts up to 25 kt, becoming
W around 5 kt after midnight. Waves 2 to 3 ft.
.THU...SW winds 10 to 15 kt, becoming W 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Waves 3 to 5 ft.
.THU NIGHT AND FRI...N winds 15 to 20 kt with gusts up to 25 kt.
Waves 2 to 3 ft.
.FRI NIGHT...NE winds 5 to 10 kt. Waves around 2 ft. A chance of
snow in the evening, then snow likely after midnight with vsby
1 to 3 NM.
.SAT...NE winds around 10 kt. Waves 2 to 3 ft. Snow likely. Vsby
1 to 3 NM.
.SAT NIGHT...NE winds 5 to 10 kt. Waves 2 to 3 ft.
.SUN AND SUN NIGHT...SE winds 10 to 15 kt, becoming SW 15 to
20 kt. Gusts up to 25 kt. Waves 2 to 4 ft. Rain likely.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
For the latest updates...please visit our webpage at
www.weather.gov/boston
You can follow us on Facebook at
www.facebook.com/NWSBoston
You can follow us on Twitter at
@NWSBoston
CWFBOX
Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
705 PM EST Tue Dec 23 2025
Coastal waters from the Merrimack River MA to Watch Hill RI out
to 25 NM
ANZ200-241300-
705 PM EST Tue Dec 23 2025
.Synopsis for Massachusetts and Rhode Island coastal waters...
Low pres shifts east of the region tonight as it intensifies. This
increasing pressure gradient will result in Gale forecast NNW winds
developing by daybreak Wed and continuing into the afternoon. High
pres builds in from the west late Wed into Wed night. This will be
followed by a strong cold front late Thu into Thu night. A wave of
low pres should then pass to our south late Fri into Sat with a
ridge of high pres building in from the west by Sun.
$$
ANZ250-241300-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
705 PM EST Tue Dec 23 2025
...GALE WARNING IN EFFECT FROM 5 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...
.TONIGHT...SE winds 10 to 15 kt, becoming SW with gusts up to
25 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 2 ft at
3 seconds and E 1 foot at 10 seconds. Showers. Vsby 1 to 3 NM.
.WED...NW winds 25 to 30 kt, becoming N in the afternoon. Gusts
up to 40 kt. Seas 4 to 6 ft, building to 6 to 9 ft in the
afternoon. Wave Detail: NW 5 ft at 5 seconds and E 1 foot at
6 seconds, becoming N 7 ft at 7 seconds and E 7 ft at 9 seconds.
A chance of showers in the morning, then rain and snow showers in
the afternoon with vsby 1 to 3 NM.
.WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt, becoming
W 10 to 15 kt after midnight. Seas 6 to 8 ft, subsiding to 5 to
6 ft after midnight. Wave Detail: E 8 ft at 9 seconds and N 4 ft
at 6 seconds, becoming E 6 ft at 9 seconds and N 2 ft at
6 seconds.
.THU...SW winds 15 to 20 kt, becoming W 20 to 25 kt in the
afternoon. Gusts up to 30 kt. Seas 5 to 6 ft. Wave Detail: E 6 ft
at 9 seconds and W 5 ft at 4 seconds. A chance of snow in the
morning, then a chance of rain in the afternoon.
.THU NIGHT...NW winds 25 to 30 kt. Seas 6 to 9 ft. Wave Detail: N
8 ft at 7 seconds and E 4 ft at 10 seconds. A chance of light
freezing spray after midnight.
.FRI...N winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas 5 to 8 ft. Wave Detail: N 8 ft
at 7 seconds and E 3 ft at 11 seconds. A chance of light freezing
spray in the morning.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. A chance of
snow after midnight.
.SAT...NE winds 10 to 15 kt. Seas 4 to 5 ft. A chance of snow.
.SAT NIGHT...N winds 5 to 10 kt. Seas 3 to 4 ft.
.SUN...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft. Rain likely.
.SUN NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas
4 to 6 ft. Rain.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ251-241300-
Massachusetts Bay and Ipswich Bay-
705 PM EST Tue Dec 23 2025
...GALE WARNING IN EFFECT FROM 5 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...
.TONIGHT...SE winds 10 to 15 kt, becoming SW with gusts up to
25 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 2 ft at
3 seconds and E 1 foot at 10 seconds. Showers. Vsby 1 NM or less.
.WED...NW winds 20 to 25 kt, becoming N 25 to 30 kt in the
afternoon. Gusts up to 40 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
1 foot at 5 seconds, becoming N 5 ft at 6 seconds and E 2 ft at
9 seconds. A chance of showers in the morning, then snow and rain
showers likely in the afternoon with vsby 1 to 3 NM.
.WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt, becoming
W 5 to 10 kt after midnight. Seas 5 to 7 ft. Wave Detail: N 7 ft
at 7 seconds.
.THU...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W
20 to 25 kt with gusts up to 30 kt in the afternoon. Seas 3 to
5 ft. Wave Detail: E 5 ft at 9 seconds and W 3 ft at 4 seconds. A
chance of snow.
.THU NIGHT...NW winds 25 to 30 kt, diminishing to 20 to 25 kt
after midnight. Seas 4 to 6 ft. Wave Detail: N 5 ft at 5 seconds
and E 4 ft at 10 seconds. A chance of light freezing spray after
midnight.
.FRI...NW winds 20 to 25 kt, becoming N 10 to 15 kt in the
afternoon. Seas 3 to 5 ft. Wave Detail: N 5 ft at 6 seconds and E
3 ft at 11 seconds. A chance of light freezing spray in the
morning.
.FRI NIGHT...NE winds around 10 kt. Seas 3 to 4 ft. A chance of
snow.
.SAT...NE winds 10 to 15 kt. Seas 3 to 4 ft. A chance of snow.
.SAT NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft.
.SUN...S winds 15 to 20 kt. Seas 2 to 3 ft. Rain likely with a
chance of snow. Vsby 1 to 3 NM.
.SUN NIGHT...SW winds 20 to 25 kt. Seas 3 to 4 ft. Rain likely.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ231-241300-
Cape Cod Bay-
705 PM EST Tue Dec 23 2025
...GALE WARNING IN EFFECT FROM 5 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...
.TONIGHT...SE winds around 10 kt, becoming SW with gusts up to
25 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at
3 seconds and SE 1 foot at 3 seconds. Showers. Vsby 1 to 3 NM.
.WED...NW winds 20 to 25 kt, becoming N 25 to 30 kt in the
afternoon. Gusts up to 40 kt. Seas 5 to 7 ft. Wave Detail: N 6 ft
at 6 seconds and E 3 ft at 10 seconds. A chance of showers in the
morning, then showers likely in the afternoon with vsby 1 to
3 NM.
.WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt, becoming
W 5 to 10 kt after midnight. Seas 4 to 6 ft, subsiding to 2 to
4 ft after midnight. Wave Detail: N 5 ft at 6 seconds and E 5 ft
at 9 seconds, becoming NE 4 ft at 9 seconds and N 3 ft at
6 seconds.
.THU...SW winds 10 to 15 kt, becoming W 20 to 25 kt in the
afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft
at 10 seconds and W 3 ft at 4 seconds. A chance of rain. A chance
of snow in the morning.
.THU NIGHT...NW winds 25 to 30 kt. Seas 5 to 7 ft. Wave Detail: N
7 ft at 6 seconds and E 3 ft at 10 seconds. A chance of light
freezing spray after midnight.
.FRI...N winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Seas 4 to 6 ft. Wave Detail: N 6 ft at 7 seconds and E
2 ft at 11 seconds. A chance of light freezing spray in the
morning.
.FRI NIGHT...NE winds 5 to 10 kt. Seas 3 to 4 ft. A chance of
snow.
.SAT...NE winds around 10 kt. Seas around 3 ft. A chance of snow.
.SAT NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft.
.SUN AND SUN NIGHT...S winds 10 to 15 kt, becoming SW 20 to
25 kt. Seas 2 to 4 ft. Rain.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ254-241300-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
705 PM EST Tue Dec 23 2025
...GALE WARNING IN EFFECT FROM 5 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...
.TONIGHT...SE winds 10 to 15 kt, becoming SW with gusts up to
25 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at
4 seconds and E 2 ft at 4 seconds. Showers likely. Vsby 1 to
3 NM.
.WED...NW winds 25 to 30 kt, becoming N in the afternoon. Gusts
up to 45 kt. Seas 4 to 6 ft, building to 6 to 9 ft in the
afternoon. Wave Detail: NW 6 ft at 5 seconds and E 1 foot at
5 seconds, becoming N 7 ft at 6 seconds and E 4 ft at 10 seconds.
A chance of showers. Vsby 1 to 3 NM in the afternoon.
.WED NIGHT...N winds 15 to 20 kt with gusts up to 30 kt, becoming
NW 5 to 10 kt after midnight. Seas 6 to 9 ft, subsiding to 5 to
7 ft after midnight. Wave Detail: NE 8 ft at 9 seconds and N 6 ft
at 6 seconds, becoming E 7 ft at 9 seconds and N 3 ft at
6 seconds.
.THU...SW winds 15 to 20 kt, becoming W 20 to 25 kt in the
afternoon. Gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: E 7 ft
at 10 seconds and W 5 ft at 5 seconds. A chance of rain.
.THU NIGHT...NW winds 25 to 30 kt. Seas 6 to 9 ft. Wave Detail: N
8 ft at 7 seconds and E 5 ft at 11 seconds. A chance of rain in
the evening.
.FRI...N winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas 7 to 9 ft, subsiding to 5 to
8 ft in the afternoon. Wave Detail: N 8 ft at 7 seconds and E
7 ft at 11 seconds, becoming NW 7 ft at 7 seconds. A chance of
light freezing spray in the morning.
.FRI NIGHT...N winds 10 to 15 kt, becoming NE 5 to 10 kt after
midnight. Seas 4 to 6 ft. A chance of snow after midnight.
.SAT...NE winds 10 to 15 kt. Seas 4 to 5 ft. A chance of snow.
.SAT NIGHT...NE winds 5 to 10 kt. Seas 3 to 5 ft.
.SUN...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Rain likely.
.SUN NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas
4 to 6 ft. Rain.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ255-241300-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
705 PM EST Tue Dec 23 2025
...GALE WARNING IN EFFECT FROM 5 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...
.TONIGHT...SE winds 10 to 15 kt, becoming W 15 to 20 kt with
gusts up to 30 kt after midnight. Seas 3 to 5 ft. Wave Detail: SW
5 ft at 6 seconds and NE 1 foot at 5 seconds. Showers likely,
mainly this evening.
.WED...NW winds 25 to 30 kt with gusts up to 40 kt. Seas 5 to
8 ft. Wave Detail: W 8 ft at 7 seconds and N 4 ft at 5 seconds. A
chance of showers in the afternoon.
.WED NIGHT...N winds 20 to 25 kt with gusts up to 30 kt, becoming
NW 5 to 10 kt after midnight. Seas 4 to 6 ft. Wave Detail: N 6 ft
at 6 seconds and E 6 ft at 10 seconds.
.THU...SW winds 20 to 25 kt, becoming W 25 to 30 kt in the
afternoon. Seas 5 to 7 ft. Wave Detail: W 7 ft at 7 seconds and E
6 ft at 10 seconds. A chance of rain.
.THU NIGHT...NW winds 25 to 30 kt. Seas 5 to 7 ft. Wave Detail:
NW 7 ft at 7 seconds and E 5 ft at 10 seconds. A chance of rain
in the evening. A chance of light freezing spray after midnight.
.FRI...N winds 20 to 25 kt with gusts up to 30 kt, diminishing to
15 to 20 kt in the afternoon. Seas 5 to 7 ft. Wave Detail: N 6 ft
at 6 seconds and E 4 ft at 11 seconds. A chance of light freezing
spray in the morning.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. A chance of
snow. Vsby 1 to 3 NM after midnight.
.SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. A chance of snow. Vsby 1 to 3 NM.
.SAT NIGHT...NE winds 10 to 15 kt. Seas 2 to 4 ft.
.SUN...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Rain likely.
.SUN NIGHT...SW winds 25 to 35 kt. Seas 5 to 7 ft. Rain.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ256-241300-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
705 PM EST Tue Dec 23 2025
...GALE WARNING IN EFFECT FROM 5 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...
.TONIGHT...S winds 10 to 15 kt, becoming W 15 to 20 kt with gusts
up to 30 kt after midnight. Seas 3 to 5 ft. Wave Detail: W 5 ft
at 5 seconds and SE 1 foot at 10 seconds. A chance of showers
this evening.
.WED...NW winds 25 to 30 kt with gusts up to 40 kt. Seas 5 to
7 ft. Wave Detail: N 7 ft at 6 seconds and SE 1 foot at
10 seconds.
.WED NIGHT...N winds 20 to 25 kt with gusts up to 30 kt, becoming
NW 5 to 10 kt after midnight. Seas 3 to 5 ft, subsiding to 2 to
3 ft after midnight. Wave Detail: N 5 ft at 6 seconds and E
1 foot at 10 seconds, becoming NE 2 ft at 5 seconds and W 2 ft at
6 seconds.
.THU...W winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to
5 ft, building to 5 to 7 ft in the afternoon. Wave Detail: SW
5 ft at 5 seconds and E 3 ft at 11 seconds, becoming W 7 ft at
6 seconds and E 4 ft at 10 seconds. A chance of rain.
.THU NIGHT...N winds 25 to 30 kt. Seas 4 to 6 ft. Wave Detail: N
6 ft at 6 seconds and E 4 ft at 10 seconds.
.FRI...N winds 20 to 25 kt with gusts up to 30 kt, becoming NE
10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 4 to
5 ft, subsiding to 2 to 4 ft in the afternoon. Wave Detail: N
5 ft at 5 seconds and E 3 ft at 11 seconds, becoming W 4 ft at
5 seconds and NE 3 ft at 5 seconds.
.FRI NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 4 ft. A chance of snow in the evening, then
snow likely after midnight. Vsby 1 NM or less.
.SAT...NE winds 15 to 20 kt. Seas 3 to 4 ft. Snow likely with a
chance of rain. Vsby 1 NM or less.
.SAT NIGHT...NE winds 10 to 15 kt. Seas 2 to 4 ft.
.SUN...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Rain likely.
.SUN NIGHT...SW winds 25 to 30 kt with gusts up to 35 kt. Seas
5 to 8 ft. Rain likely.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ232-241300-
Nantucket Sound-
705 PM EST Tue Dec 23 2025
...GALE WARNING IN EFFECT FROM 5 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...
.TONIGHT...SE winds around 10 kt, becoming SW with gusts up to
25 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at
4 seconds and SE 1 foot at 3 seconds. Showers likely. Vsby 1 to
3 NM.
.WED...NW winds 20 to 25 kt, becoming N 25 to 30 kt in the
afternoon. Gusts up to 40 kt. Seas 3 to 5 ft. Wave Detail: W 5 ft
at 4 seconds and NE 3 ft at 5 seconds. A chance of showers in the
afternoon.
.WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt, becoming
NW 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: N 3 ft
at 5 seconds and E 3 ft at 10 seconds.
.THU...SW winds 15 to 20 kt, becoming W 20 to 25 kt in the
afternoon. Seas 3 to 5 ft. Wave Detail: W 4 ft at 5 seconds and E
3 ft at 10 seconds. A chance of rain.
.THU NIGHT...NW winds 25 to 30 kt. Seas 3 to 5 ft. Wave Detail: N
5 ft at 6 seconds and E 3 ft at 10 seconds. A chance of rain in
the evening. A chance of light freezing spray after midnight.
.FRI...N winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Seas 3 to 5 ft. Wave Detail: N 4 ft at 5 seconds and E
2 ft at 11 seconds. A chance of light freezing spray in the
morning.
.FRI NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
snow. Vsby 1 to 3 NM after midnight.
.SAT...NE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of snow.
.SAT NIGHT...NE winds 5 to 10 kt. Seas around 2 ft.
.SUN AND SUN NIGHT...S winds 15 to 20 kt, becoming SW 25 to
30 kt. Seas 2 to 4 ft. Rain.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ233-241300-
Vineyard Sound-
705 PM EST Tue Dec 23 2025
...GALE WARNING IN EFFECT FROM 5 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...
.TONIGHT...SE winds 5 to 10 kt, becoming W 15 to 20 kt with gusts
up to 30 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft
at 5 seconds and SE 1 foot at 3 seconds. Showers likely, mainly
this evening. Vsby 1 to 3 NM.
.WED...NW winds 20 to 25 kt with gusts up to 40 kt. Seas 3 to
4 ft. Wave Detail: W 4 ft at 5 seconds and N 3 ft at 5 seconds. A
chance of showers in the afternoon.
.WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt, becoming
NW 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: N 2 ft
at 5 seconds and E 2 ft at 10 seconds.
.THU...SW winds 15 to 20 kt, becoming W 20 to 25 kt in the
afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. Wave Detail: SW
4 ft at 6 seconds and E 2 ft at 10 seconds. A chance of rain.
.THU NIGHT AND FRI...N winds 20 to 25 kt with gusts up to 30 kt.
Seas 2 to 3 ft. Wave Detail: N 3 ft at 6 seconds and E 2 ft at
11 seconds. A chance of light freezing spray through the day.
.FRI NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt after
midnight. Seas 1 foot or less, then around 2 ft after midnight.
Wave Detail: NE 1 foot at 3 seconds and W 1 foot at 5 seconds,
becoming NE 1 foot at 3 seconds and W 1 foot at 6 seconds. A
chance of snow in the evening, then snow likely after midnight
with vsby 1 to 3 NM.
.SAT...NE winds 10 to 15 kt. Seas around 2 ft. A chance of snow.
.SAT NIGHT...NE winds 5 to 10 kt. Seas around 2 ft.
.SUN...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Rain likely.
.SUN NIGHT...SW winds 25 to 30 kt. Seas 3 to 5 ft. Rain likely.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ234-241300-
Buzzards Bay-
705 PM EST Tue Dec 23 2025
...GALE WARNING IN EFFECT FROM 5 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...
.TONIGHT...SE winds 5 to 10 kt, becoming W 10 to 15 kt with gusts
up to 25 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft
at 5 seconds and SE 1 foot at 3 seconds. Showers likely, mainly
this evening. Vsby 1 to 3 NM.
.WED...NW winds 15 to 20 kt, becoming N 20 to 25 kt in the
afternoon. Gusts up to 35 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft
at 5 seconds and N 3 ft at 5 seconds. A chance of showers in the
afternoon.
.WED NIGHT...N winds 10 to 15 kt with gusts up to 25 kt, becoming
NW 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft
at 10 seconds and N 2 ft at 5 seconds.
.THU...SW winds 15 to 20 kt, becoming W 20 to 25 kt in the
afternoon. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and
E 2 ft at 10 seconds. A chance of rain.
.THU NIGHT AND FRI...N winds 20 to 25 kt. Seas 2 to 4 ft. Wave
Detail: N 3 ft at 5 seconds and E 2 ft at 11 seconds. A chance of
light freezing spray through the day.
.FRI NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
NE 1 foot at 3 seconds and W 1 foot at 5 seconds. A chance of
snow in the evening, then snow likely after midnight with vsby
1 to 3 NM.
.SAT...NE winds 10 to 15 kt. Seas around 2 ft. A chance of snow.
.SAT NIGHT...NE winds 5 to 10 kt. Seas around 2 ft.
.SUN AND SUN NIGHT...S winds 15 to 20 kt, becoming SW 20 to 25 kt
with gusts up to 30 kt. Seas 2 to 4 ft. Rain likely.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ235-241300-
Rhode Island Sound-
705 PM EST Tue Dec 23 2025
...GALE WARNING IN EFFECT FROM 5 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...
.TONIGHT...S winds 5 to 10 kt, becoming W 15 to 20 kt with gusts
up to 30 kt after midnight. Seas 2 to 4 ft. Wave Detail: W 4 ft
at 5 seconds and SE 1 foot at 10 seconds. Showers likely this
evening.
.WED...NW winds 20 to 25 kt, becoming N 25 to 30 kt in the
afternoon. Gusts up to 40 kt. Seas 3 to 5 ft. Wave Detail: N 5 ft
at 5 seconds and SE 1 foot at 10 seconds.
.WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt, becoming
NW 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: N 4 ft
at 5 seconds and E 2 ft at 10 seconds.
.THU...W winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to
5 ft. Wave Detail: W 5 ft at 6 seconds and E 2 ft at 11 seconds.
A chance of rain.
.THU NIGHT AND FRI...N winds 20 to 25 kt with gusts up to 30 kt.
Seas 2 to 4 ft. Wave Detail: N 4 ft at 6 seconds and E 2 ft at
10 seconds.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail:
NE 2 ft at 3 seconds and W 1 foot at 5 seconds. A chance of snow
in the evening, then snow likely after midnight with vsby 1 NM or
less.
.SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Snow likely. Vsby 1 to 3 NM.
.SAT NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft.
.SUN...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Rain likely.
.SUN NIGHT...SW winds 25 to 30 kt. Seas 4 to 6 ft. Rain likely.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ237-241300-
Block Island Sound-
705 PM EST Tue Dec 23 2025
...GALE WARNING IN EFFECT FROM 5 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...
.TONIGHT...SW winds 5 to 10 kt, becoming W 15 to 20 kt with gusts
up to 30 kt after midnight. Seas 2 to 3 ft. Wave Detail: W 3 ft
at 4 seconds and SE 1 foot at 10 seconds. A chance of showers
this evening.
.WED...NW winds 20 to 25 kt with gusts up to 40 kt. Seas 3 to
5 ft. Wave Detail: NW 4 ft at 5 seconds and SE 1 foot at
10 seconds.
.WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt, becoming
NW 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: NE
2 ft at 4 seconds and W 2 ft at 6 seconds.
.THU...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: W 4 ft at 5 seconds and E 2 ft at 11 seconds.
A chance of rain.
.THU NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 4 ft. Wave Detail: N 4 ft at 5 seconds and E 2 ft at
10 seconds. A chance of light freezing spray after midnight.
.FRI...N winds 15 to 20 kt with gusts up to 25 kt, becoming NE
10 to 15 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: N 3 ft
at 5 seconds and E 2 ft at 11 seconds.
.FRI NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt after midnight. Seas 2 to 3 ft. A chance of
snow in the evening, then snow likely after midnight. Vsby 1 NM
or less.
.SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Snow likely. Vsby 1 NM or less.
.SAT NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft.
.SUN...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Rain likely.
.SUN NIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas
4 to 6 ft. Rain likely.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ230-241300-
Boston Harbor-
705 PM EST Tue Dec 23 2025
...GALE WARNING IN EFFECT FROM 5 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...
.TONIGHT...SE winds 5 to 10 kt, becoming SW 10 to 15 kt with
gusts up to 25 kt after midnight. Waves 1 foot or less, then
around 2 ft after midnight. Showers, mainly this evening. Vsby
1 to 3 NM, decreasing to 1 NM or less after midnight.
.WED...NW winds 20 to 25 kt, becoming N in the afternoon. Gusts
up to 35 kt. Waves around 2 ft, except 3 to 5 ft at the outer
harbor entrance. A chance of showers. Snow showers likely in the
afternoon.
.WED NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt,
becoming W 5 to 10 kt after midnight. Waves around 2 ft in the
evening, then 1 foot or less. At the outer harbor entrance, waves
3 to 5 ft.
.THU...SW winds 10 to 15 kt, becoming W 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Waves around 2 ft. A chance of snow
in the morning.
.THU NIGHT AND FRI...N winds 20 to 25 kt with gusts up to 30 kt.
Waves around 2 ft, except 3 to 5 ft at the outer harbor entrance.
.FRI NIGHT...N winds 5 to 10 kt. Waves 1 foot or less. A chance
of snow.
.SAT...NE winds 5 to 10 kt. Waves 1 foot or less. A chance of
snow.
.SAT NIGHT...N winds 5 to 10 kt. Waves 1 foot or less.
.SUN...S winds 10 to 15 kt with gusts up to 20 kt. Waves around
2 ft. Rain likely with a chance of snow.
.SUN NIGHT...SW winds 20 to 25 kt. Waves around 2 ft. Rain
likely.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ236-241300-
Narragansett Bay-
705 PM EST Tue Dec 23 2025
...GALE WARNING IN EFFECT FROM 5 AM EST WEDNESDAY THROUGH
WEDNESDAY AFTERNOON...
.TONIGHT...S winds 5 to 10 kt, becoming W 10 to 15 kt with gusts
up to 25 kt after midnight. Waves 2 to 3 ft. Showers likely this
evening with vsby 1 to 3 NM.
.WED...NW winds 15 to 20 kt, becoming N 20 to 25 kt in the
afternoon. Gusts up to 35 kt. Waves around 3 ft.
.WED NIGHT...N winds 10 to 15 kt with gusts up to 25 kt, becoming
W around 5 kt after midnight. Waves 2 to 3 ft.
.THU...SW winds 10 to 15 kt, becoming W 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Waves 3 to 5 ft.
.THU NIGHT AND FRI...N winds 15 to 20 kt with gusts up to 25 kt.
Waves 2 to 3 ft.
.FRI NIGHT...NE winds 5 to 10 kt. Waves around 2 ft. A chance of
snow in the evening, then snow likely after midnight with vsby
1 to 3 NM.
.SAT...NE winds around 10 kt. Waves 2 to 3 ft. Snow likely. Vsby
1 to 3 NM.
.SAT NIGHT...NE winds 5 to 10 kt. Waves 2 to 3 ft.
.SUN AND SUN NIGHT...SE winds 10 to 15 kt, becoming SW 15 to
20 kt. Gusts up to 25 kt. Waves 2 to 4 ft. Rain likely.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
For the latest updates...please visit our webpage at
www.weather.gov/boston
You can follow us on Facebook at
www.facebook.com/NWSBoston
You can follow us on Twitter at
@NWSBoston