National Weather Service Marine Forecast FZUS51 KBOX
FZUS51 KBOX 020304
CWFBOX
Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1004 PM EST Thu Jan 1 2026
Coastal waters from the Merrimack River MA to Watch Hill RI out to 25 NM
ANZ200-021600
1004 PM EST Thu Jan 1 2026
Synopsis for Massachusetts and Rhode Island coastal waters
Gale Force NW wind gusts continue into tonight with areas of light to moderate freezing spray developing as well. High pres builds S of the waters Fri. Another cold front moves across the region Fri night, followed by high pres for Sat. Low pres will likely then track well SE of the 40N/70W benchmark on Sun, followed by another high pres for Mon. Low pressure may return Tuesday.
ANZ250-021600
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary
1004 PM EST Thu Jan 1 2026
GALE WARNING IN EFFECT UNTIL 7 AM EST FRIDAY
FREEZING SPRAY ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON
OVERNIGHT
W winds 25 to 30 kt, diminishing to 20 to 25 kt.
Seas 5 to 8 ft. Wave Detail: W 8 ft at 6 seconds and E 2 ft at
12 seconds. Light freezing spray.
FRI
W winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to
7 ft, subsiding to 3 to 5 ft in the afternoon. Wave Detail: W
6 ft at 5 seconds and E 1 foot at 12 seconds, becoming W 4 ft at
5 seconds and E 1 foot at 12 seconds. Light freezing spray.
FRI NIGHT
W winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 ft. Wave Detail: W 5 ft at 5 seconds and E 1 foot at
11 seconds. Light freezing spray.
SAT
W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: W 4 ft at 5 seconds and E 1 foot at
11 seconds. Light freezing spray in the morning.
SAT NIGHT
W winds 10 to 15 kt with gusts up to 20 kt, becoming
NW 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: W 3 ft
at 4 seconds and E 1 foot at 11 seconds.
SUN
NW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NW
2 ft at 3 seconds and E 1 foot at 10 seconds. A chance of snow in
the morning.
SUN NIGHT
NW winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 4 ft. A chance of light freezing spray.
MON
NW winds 15 to 20 kt. Seas 2 to 4 ft.
MON NIGHT
SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
snow.
TUE
SW winds 5 to 10 kt. Seas around 2 ft. A chance of rain
and snow.
TUE NIGHT
S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
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.
ANZ251-021600
Massachusetts Bay and Ipswich Bay
1004 PM EST Thu Jan 1 2026
GALE WARNING IN EFFECT UNTIL 1 AM EST FRIDAY
FREEZING SPRAY ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON
OVERNIGHT
W winds 20 to 25 kt with gusts up to 30 kt. Seas
3 to 5 ft. Wave Detail: W 5 ft at 5 seconds and E 1 foot at
13 seconds. Light freezing spray.
FRI
W winds 15 to 20 kt. Seas 2 to 4 ft. Wave Detail: W 3 ft
at 4 seconds and E 1 foot at 12 seconds. Light freezing spray in
the morning.
FRI NIGHT
W winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and E 1 foot at
11 seconds. Light freezing spray.
SAT
W winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and E
1 foot at 11 seconds. Light freezing spray in the morning.
SAT NIGHT THROUGH SUN NIGHT
NW winds 15 to 20 kt. Seas 2 to
3 ft. Wave Detail: NW 3 ft at 4 seconds and E 1 foot at
11 seconds.
MON
NW winds 15 to 20 kt. Seas 2 to 3 ft. Wave Detail: NW 3 ft
at 4 seconds and NE 2 ft at 7 seconds.
MON NIGHT
SW winds 5 to 10 kt. Seas around 2 ft. A chance of
snow.
TUE
SW winds 5 to 10 kt. Seas around 2 ft. A chance of snow.
TUE NIGHT
S winds 5 to 10 kt. Seas around 2 ft. A chance of
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.
ANZ231-021600
Cape Cod Bay
1004 PM EST Thu Jan 1 2026
GALE WARNING IN EFFECT UNTIL 1 AM EST FRIDAY
OVERNIGHT
W winds 20 to 25 kt with gusts up to 30 kt. Seas
3 to 5 ft. Wave Detail: NW 5 ft at 5 seconds and E 1 foot at
13 seconds. Light freezing spray.
FRI
W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: W 3 ft at 5 seconds and NE 1 foot at
11 seconds.
FRI NIGHT
W winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and E 1 foot at
11 seconds. Light freezing spray after midnight.
SAT
W winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and E
1 foot at 11 seconds.
SAT NIGHT THROUGH SUN NIGHT
NW winds 15 to 20 kt. Seas 2 to
3 ft. Wave Detail: NW 3 ft at 4 seconds and E 1 foot at
11 seconds.
MON
NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: N 3 ft at 6 seconds.
MON NIGHT
SW winds around 5 kt. Seas around 2 ft. A chance of
snow.
TUE
SW winds 5 to 10 kt. Seas around 2 ft. A chance of rain
and snow.
TUE NIGHT
S winds 5 to 10 kt. Seas around 2 ft. A chance of
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.
ANZ254-021600
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm
1004 PM EST Thu Jan 1 2026
GALE WARNING IN EFFECT UNTIL 7 AM EST FRIDAY
OVERNIGHT
W winds 25 to 30 kt. Seas 6 to 9 ft. Wave Detail: NW
8 ft at 6 seconds and E 2 ft at 12 seconds. Light freezing spray.
FRI
W winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to
7 ft. Wave Detail: W 6 ft at 7 seconds and E 2 ft at 12 seconds.
Light freezing spray in the morning.
FRI NIGHT
W winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 ft. Wave Detail: W 5 ft at 5 seconds and E 1 foot at
11 seconds. Light freezing spray after midnight.
SAT
W winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: W 4 ft
at 5 seconds and E 1 foot at 11 seconds.
SAT NIGHT
NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: W
3 ft at 6 seconds and E 1 foot at 11 seconds.
SUN
NW winds 5 to 10 kt, increasing to 15 to 20 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 4 seconds and
E 1 foot at 9 seconds. A chance of snow.
SUN NIGHT
NW winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 4 ft. A chance of light freezing spray after midnight.
MON
NW winds 15 to 20 kt. Seas 3 to 4 ft.
MON NIGHT
SW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of
rain.
TUE
SW winds 5 to 10 kt. Seas 2 to 3 ft.
TUE NIGHT
S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
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.
ANZ255-021600
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket
1004 PM EST Thu Jan 1 2026
GALE WARNING IN EFFECT UNTIL 7 AM EST FRIDAY
OVERNIGHT
W winds 25 to 30 kt with gusts up to 35 kt. Seas
8 to 10 ft, subsiding to 6 to 9 ft. Wave Detail: W 10 ft at
8 seconds and E 2 ft at 13 seconds, becoming W 9 ft at 8 seconds
and E 2 ft at 13 seconds. Light freezing spray. A slight chance
of snow.
FRI
W winds 15 to 20 kt. Seas 5 to 7 ft. Wave Detail: W 6 ft
at 7 seconds and E 2 ft at 12 seconds. Light freezing spray in
the morning. A chance of snow in the morning.
FRI NIGHT
NW winds around 20 kt with gusts up to 25 kt. Seas
4 to 6 ft. Wave Detail: W 5 ft at 7 seconds and E 1 foot at
12 seconds.
SAT
W winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 3 to 5 ft. Wave Detail: W 5 ft at 6 seconds and E
1 foot at 11 seconds.
SAT NIGHT AND SUN
NW winds 15 to 20 kt. Seas 2 to 3 ft. Wave
Detail: W 3 ft at 6 seconds and E 1 foot at 11 seconds.
SUN NIGHT
NW winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. Seas 3 to 5 ft. Wave Detail: NW 5 ft at 5 seconds
and E 1 foot at 11 seconds. A chance of light freezing spray
after midnight.
MON
NW winds 15 to 20 kt. Seas 2 to 4 ft. A chance of light
freezing spray.
MON NIGHT AND TUE
SW winds 5 to 10 kt. Seas 2 to 3 ft.
TUE NIGHT
S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
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.
ANZ256-021600
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island
1004 PM EST Thu Jan 1 2026
GALE WARNING IN EFFECT UNTIL 1 AM EST FRIDAY
OVERNIGHT
W winds 25 to 30 kt, diminishing to 20 to 25 kt.
Seas 6 to 9 ft, subsiding to 5 to 7 ft. Wave Detail: NW 8 ft at
7 seconds and E 1 foot at 13 seconds, becoming W 7 ft at
7 seconds and E 1 foot at 13 seconds. Light freezing spray. A
slight chance of snow.
FRI
W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. Wave Detail: W 5 ft at 7 seconds and E 1 foot at
13 seconds.
FRI NIGHT
W winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 6 ft. Wave Detail: W 5 ft at 6 seconds and E 1 foot at
12 seconds.
SAT
W winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 3 to 5 ft. Wave Detail: NW 4 ft at 5 seconds and
E 1 foot at 11 seconds.
SAT NIGHT AND SUN
NW winds 15 to 20 kt. Seas 2 to 3 ft. Wave
Detail: NW 3 ft at 6 seconds and E 1 foot at 11 seconds.
SUN NIGHT
NW winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. Seas 2 to 4 ft. Wave Detail: NW 4 ft at 4 seconds
and E 1 foot at 10 seconds. A chance of light freezing spray
after midnight.
MON THROUGH TUE
SW winds 15 to 20 kt. Seas 2 to 4 ft.
TUE NIGHT
S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
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.
ANZ232-021600
Nantucket Sound
1004 PM EST Thu Jan 1 2026
GALE WARNING IN EFFECT UNTIL 1 AM EST FRIDAY
FREEZING SPRAY ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON
OVERNIGHT
W winds 25 to 30 kt, diminishing to 20 to 25 kt.
Seas 4 to 6 ft. Wave Detail: W 5 ft at 5 seconds and E 1 foot at
13 seconds. Light freezing spray. A slight chance of snow.
FRI
W winds around 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: W 3 ft at 5 seconds and E 1 foot at
12 seconds.
FRI NIGHT
W winds 15 to 20 kt. Seas 2 to 4 ft. Wave Detail: W
3 ft at 4 seconds and E 1 foot at 12 seconds. Light freezing
spray after midnight.
SAT
W winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and E
1 foot at 11 seconds.
SAT NIGHT THROUGH SUN NIGHT
NW winds 15 to 20 kt. Seas 2 to
3 ft. Wave Detail: NW 3 ft at 4 seconds and E 1 foot at
11 seconds.
MON
NW winds 15 to 20 kt. Seas 2 to 3 ft. Wave Detail: NW 2 ft
at 4 seconds and E 1 foot at 9 seconds.
MON NIGHT
SW winds 5 to 10 kt. Seas around 2 ft. A chance of
rain.
TUE
S winds 5 to 10 kt. Seas around 2 ft.
TUE NIGHT
S winds 5 to 10 kt. Seas around 2 ft. A chance of
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.
ANZ233-021600
Vineyard Sound
1004 PM EST Thu Jan 1 2026
GALE WARNING IN EFFECT UNTIL 1 AM EST FRIDAY
FREEZING SPRAY ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON
OVERNIGHT
W winds 25 to 30 kt, diminishing to 20 to 25 kt.
Seas 4 to 6 ft. Wave Detail: W 5 ft at 7 seconds and E 1 foot at
14 seconds. Light freezing spray. A slight chance of snow.
FRI
W winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft
at 6 seconds and E 1 foot at 13 seconds.
FRI NIGHT
W winds 15 to 20 kt. Seas 2 to 4 ft. Wave Detail: W
3 ft at 6 seconds and E 1 foot at 12 seconds. Light freezing
spray after midnight.
SAT
W winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 2 to 3 ft. Wave Detail: W 3 ft at 5 seconds and E 1 foot at
11 seconds.
SAT NIGHT THROUGH SUN NIGHT
NW winds 15 to 20 kt. Seas 2 to
3 ft. Wave Detail: W 2 ft at 5 seconds and E 1 foot at
11 seconds.
MON
NW winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. Wave Detail: NW 2 ft at 4 seconds and S 1 foot at
9 seconds.
MON NIGHT
SW winds 5 to 10 kt. Seas around 2 ft. A chance of
rain.
TUE
SW winds 5 to 10 kt. Seas around 2 ft.
TUE NIGHT
S winds 5 to 10 kt. Seas around 2 ft. A chance of
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.
ANZ234-021600
Buzzards Bay
1004 PM EST Thu Jan 1 2026
GALE WARNING IN EFFECT UNTIL 1 AM EST FRIDAY
FREEZING SPRAY ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON
OVERNIGHT
W winds 20 to 25 kt with gusts up to 30 kt. Seas
2 to 4 ft. Wave Detail: W 4 ft at 6 seconds and E 1 foot at
13 seconds. Light freezing spray.
FRI
W winds around 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SW 3 ft at 6 seconds and E 1 foot at
13 seconds.
FRI NIGHT
W winds 15 to 20 kt. Seas 2 to 3 ft. Wave Detail: W
3 ft at 6 seconds and E 1 foot at 12 seconds.
SAT
W winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas around 2 ft. Wave Detail: W 2 ft at 5 seconds and E 1 foot
at 11 seconds.
SAT NIGHT THROUGH SUN NIGHT
NW winds 15 to 20 kt. Seas around
2 ft. Wave Detail: W 2 ft at 5 seconds and E 1 foot at
11 seconds.
MON
NW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: NW
2 ft at 3 seconds and SE 1 foot at 9 seconds.
MON NIGHT
SW winds around 5 kt. Seas 1 foot or less. A chance
of snow.
TUE
SW winds 5 to 10 kt. Seas 1 foot or less.
TUE NIGHT
S winds 5 to 10 kt. Seas 1 foot or less. A chance of
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.
ANZ235-021600
Rhode Island Sound
1004 PM EST Thu Jan 1 2026
GALE WARNING IN EFFECT UNTIL 1 AM EST FRIDAY
OVERNIGHT
W winds 20 to 25 kt with gusts up to 30 kt. Seas
4 to 6 ft. Wave Detail: W 6 ft at 6 seconds and E 1 foot at
14 seconds. Light freezing spray. A slight chance of snow.
FRI
W winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft
at 7 seconds and E 1 foot at 13 seconds.
FRI NIGHT
W winds 15 to 20 kt. Seas 2 to 4 ft. Wave Detail: W
4 ft at 7 seconds and E 1 foot at 12 seconds. Light freezing
spray after midnight.
SAT
W winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: W 3 ft at 5 seconds and E
1 foot at 11 seconds.
SAT NIGHT THROUGH SUN NIGHT
NW winds 15 to 20 kt. Seas 2 to
3 ft. Wave Detail: NW 3 ft at 4 seconds and E 1 foot at
11 seconds.
MON
NW winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. Wave Detail: NW 2 ft at 4 seconds and S 2 ft at 9 seconds.
MON NIGHT
SW winds 5 to 10 kt. Seas around 2 ft. A chance of
rain.
TUE
SW winds 5 to 10 kt. Seas around 2 ft.
TUE NIGHT
S winds 10 to 15 kt. Seas around 2 ft. A chance of
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.
ANZ237-021600
Block Island Sound
1004 PM EST Thu Jan 1 2026
GALE WARNING IN EFFECT UNTIL 1 AM EST FRIDAY
OVERNIGHT
W winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 ft. Wave Detail: W 4 ft at 6 seconds and SE 1 foot at
14 seconds. Light freezing spray. A slight chance of snow.
FRI
W winds around 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: W 3 ft at 5 seconds and E 1 foot at
13 seconds.
FRI NIGHT
W winds around 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. Wave Detail: W 3 ft at 5 seconds and E 1 foot at
12 seconds.
SAT
W winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 2 to 3 ft. Wave Detail: W 2 ft at 5 seconds and E 1 foot at
12 seconds.
SAT NIGHT THROUGH SUN NIGHT
NW winds 10 to 15 kt with gusts up
to 20 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft at 6 seconds and SE
1 foot at 11 seconds.
MON THROUGH TUE
SW winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: NW 2 ft at 3 seconds and S 1 foot
at 10 seconds.
TUE NIGHT
S winds 5 to 10 kt. Seas around 2 ft. A chance of
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.
ANZ230-021600
Boston Harbor
1004 PM EST Thu Jan 1 2026
SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EST FRIDAY
OVERNIGHT
W winds 20 to 25 kt, diminishing to 15 to 20 kt.
Waves around 2 ft.
FRI
W winds 10 to 15 kt with gusts up to 20 kt. Waves around
2 ft.
FRI NIGHT
W winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. Waves around 2 ft.
SAT
W winds 10 to 15 kt with gusts up to 20 kt. Waves around
2 ft.
SAT NIGHT THROUGH SUN NIGHT
NW winds 10 to 15 kt with gusts up
to 20 kt. Waves around 2 ft.
MON
NW winds 10 to 15 kt. Waves around 2 ft.
MON NIGHT
SW winds around 5 kt. Waves 1 foot or less. A chance
of snow.
TUE
SW winds around 5 kt. Waves 1 foot or less. A chance of
snow.
TUE NIGHT
S winds 5 to 10 kt. Waves 1 foot or less. A chance
of 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.
ANZ236-021600
Narragansett Bay
1004 PM EST Thu Jan 1 2026
SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EST FRIDAY
OVERNIGHT
W winds 15 to 20 kt, diminishing to 10 to 15 kt.
Gusts up to 25 kt. Waves 2 to 3 ft. Light freezing spray.
FRI
W winds 10 to 15 kt. Waves around 2 ft.
FRI NIGHT
W winds 10 to 15 kt. Waves around 2 ft.
SAT
W winds 5 to 10 kt. Waves around 2 ft.
SAT NIGHT THROUGH SUN NIGHT
NW winds 10 to 15 kt with gusts up
to 20 kt. Waves around 2 ft.
MON
NW winds 5 to 10 kt. Waves around 2 ft.
MON NIGHT
SW winds around 5 kt. Waves 1 foot or less. A chance
of snow.
TUE
SW winds 5 to 10 kt. Waves 1 foot or less.
TUE NIGHT
S winds 5 to 10 kt. Waves around 2 ft. A chance of
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.
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