440
FZUS51 KBOX 111804
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
104 PM EST Tue Nov 11 2025

Coastal waters from the Merrimack River MA to Watch Hill RI out
to 25 NM

ANZ200-120700-
104 PM EST Tue Nov 11 2025

.Synopsis for Massachusetts and Rhode Island coastal waters...
Strong cold front passes through the region and over the waters
tonight with a high chance for W gale force wind gusts on Tue.
Another cold front will approach and cross the waters later Wed into
Thu.

$$

ANZ250-120700-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
104 PM EST Tue Nov 11 2025

...GALE WARNING IN EFFECT THROUGH WEDNESDAY MORNING...

.THIS AFTERNOON...W winds 25 to 30 kt with gusts up to 40 kt.
Seas 5 to 7 ft. Wave Detail: W 6 ft at 5 seconds and SE 3 ft at
9 seconds. A slight chance of rain.
.TONIGHT...W winds 25 to 30 kt with gusts up to 40 kt. Seas 5 to
8 ft. Wave Detail: W 7 ft at 6 seconds and SE 3 ft at 10 seconds.
.WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft, subsiding to 2 to 4 ft in the afternoon. Wave Detail: SW
5 ft at 5 seconds and SE 2 ft at 11 seconds, becoming SW 4 ft at
5 seconds and SE 2 ft at 12 seconds. A chance of rain in the
afternoon.
.WED NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and SE 1 foot at
11 seconds.
.THU AND THU NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Wave Detail: NW 4 ft at 4 seconds and SE 1 foot
at 9 seconds. A chance of rain.
.FRI THROUGH SAT...NW winds 15 to 20 kt with gusts up to 25 kt.
Seas 3 to 4 ft. Wave Detail: NW 4 ft at 5 seconds and NE 2 ft at
9 seconds.
.SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 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.

$$

ANZ251-120700-
Massachusetts Bay and Ipswich Bay-
104 PM EST Tue Nov 11 2025

...GALE WARNING IN EFFECT THROUGH WEDNESDAY MORNING...

.THIS AFTERNOON...W winds 20 to 25 kt with gusts up to 30 kt.
Seas 3 to 4 ft. Wave Detail: W 4 ft at 4 seconds and E 2 ft at
9 seconds. A slight chance of rain.
.TONIGHT...W winds 25 to 30 kt, diminishing to 20 to 25 kt after
midnight. Seas 3 to 5 ft. Wave Detail: W 4 ft at 4 seconds and E
2 ft at 9 seconds.
.WED...SW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and
E 1 foot at 12 seconds.
.WED NIGHT...W winds 10 to 15 kt. Seas around 2 ft. Wave Detail:
W 2 ft at 3 seconds and E 1 foot at 12 seconds.
.THU...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: W 2 ft at 3 seconds and SE 1 foot at
9 seconds. A chance of rain in the afternoon.
.THU NIGHT...NW winds 15 to 20 kt. Seas 2 to 3 ft. Wave Detail:
NW 3 ft at 4 seconds and SE 1 foot at 9 seconds.
.FRI THROUGH SAT...NW winds 15 to 20 kt. Seas 2 to 3 ft.
.SAT NIGHT...NW winds 15 to 20 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.

$$

ANZ231-120700-
Cape Cod Bay-
104 PM EST Tue Nov 11 2025

...GALE WARNING IN EFFECT THROUGH WEDNESDAY MORNING...

.THIS AFTERNOON...W winds 25 to 30 kt with gusts up to 40 kt.
Seas 3 to 5 ft. Wave Detail: W 4 ft at 4 seconds and SE 2 ft at
8 seconds. A slight chance of rain.
.TONIGHT...W winds 25 to 30 kt. Gusts up to 40 kt in the evening.
Seas 3 to 5 ft. Wave Detail: W 5 ft at 5 seconds and S 2 ft at
9 seconds.
.WED...SW 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 S 2 ft at 10 seconds.
A chance of rain.
.WED NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft. Wave Detail: W 2 ft at 3 seconds and S
1 foot at 10 seconds.
.THU AND THU NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Wave Detail: NW 3 ft at 4 seconds and S 1 foot at
10 seconds. A chance of rain through the night.
.FRI THROUGH SAT...NW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Wave Detail: N 3 ft at 6 seconds.
.SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 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.

$$

ANZ254-120700-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
104 PM EST Tue Nov 11 2025

...GALE WARNING IN EFFECT THROUGH WEDNESDAY MORNING...

.THIS AFTERNOON...W winds 25 to 30 kt with gusts up to 40 kt.
Seas 6 to 9 ft, except 9 to 13 ft S and E of Nantucket. Wave
Detail: W 6 ft at 5 seconds and S 5 ft at 9 seconds. A slight
chance of rain.
.TONIGHT...W winds 30 to 35 kt, diminishing to 25 to 30 kt after
midnight. Seas 7 to 10 ft, except 10 to 14 ft S and E of
Nantucket. Wave Detail: W 7 ft at 6 seconds and S 4 ft at
9 seconds.
.WED...W winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to
7 ft, except 8 to 10 ft S and E of Nantucket. Wave Detail: W 5 ft
at 6 seconds and S 5 ft at 11 seconds. A chance of rain.
.WED NIGHT...W winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: S
5 ft at 10 seconds and W 3 ft at 5 seconds.
.THU AND THU NIGHT...NW winds 20 to 25 kt. Seas 4 to 6 ft. Wave
Detail: NW 5 ft at 5 seconds and S 4 ft at 10 seconds. A chance
of rain.
.FRI...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. Wave Detail: NW 5 ft at 5 seconds and SE 1 foot at
9 seconds. A chance of rain.
.FRI NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 4 ft. A chance of rain.
.SAT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft.
.SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 4 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.

$$

ANZ255-120700-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
104 PM EST Tue Nov 11 2025

...GALE WARNING IN EFFECT THROUGH WEDNESDAY MORNING...

.THIS AFTERNOON...W winds 30 to 35 kt with gusts up to 45 kt.
Seas 8 to 11 ft. Wave Detail: SW 11 ft at 8 seconds and S 4 ft at
9 seconds. A chance of rain.
.TONIGHT...W winds 35 to 40 kt with gusts up to 45 kt,
diminishing to 25 to 35 kt after midnight. Seas 10 to 14 ft. Wave
Detail: W 13 ft at 9 seconds and S 3 ft at 9 seconds.
.WED...W winds 20 to 25 kt with gusts up to 30 kt. Seas 7 to
10 ft. Wave Detail: SW 10 ft at 9 seconds and S 9 ft at
11 seconds. A chance of rain.
.WED NIGHT...W winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. Seas 6 to 9 ft. Wave Detail: SW 9 ft at 9 seconds
and W 1 foot at 5 seconds.
.THU...W winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. Gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: SW
7 ft at 9 seconds. A chance of rain.
.THU NIGHT...NW winds 25 to 30 kt. Seas 6 to 9 ft. Wave Detail: W
8 ft at 8 seconds and SW 3 ft at 9 seconds. A chance of rain in
the evening.
.FRI...NW winds 20 to 25 kt. Seas 5 to 7 ft. A chance of rain.
.FRI NIGHT...NW winds 20 to 25 kt. Seas 3 to 5 ft. A chance of
rain.
.SAT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.SAT NIGHT...NW winds 15 to 20 kt. Seas 2 to 4 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.

$$

ANZ256-120700-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
104 PM EST Tue Nov 11 2025

...GALE WARNING IN EFFECT THROUGH WEDNESDAY MORNING...

.THIS AFTERNOON...W winds 30 to 40 kt. Seas 8 to 11 ft. Wave
Detail: W 11 ft at 8 seconds and S 3 ft at 9 seconds. A chance of
rain.
.TONIGHT...W winds 30 to 40 kt, diminishing to 25 to 30 kt after
midnight. Seas 9 to 13 ft, subsiding to 8 to 11 ft after
midnight. Wave Detail: W 12 ft at 9 seconds and S 4 ft at
10 seconds, becoming W 11 ft at 9 seconds and S 5 ft at
10 seconds.
.WED...W winds 20 to 25 kt with gusts up to 30 kt. Seas 7 to
9 ft. Wave Detail: SW 9 ft at 8 seconds and S 8 ft at 10 seconds.
.WED NIGHT...W winds 20 to 25 kt. Seas 6 to 9 ft. Wave Detail: SW
8 ft at 9 seconds and W 2 ft at 5 seconds.
.THU...W winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to
7 ft. Wave Detail: W 7 ft at 7 seconds and SW 7 ft at 9 seconds.
A chance of rain in the afternoon.
.THU NIGHT...NW winds 25 to 30 kt, diminishing to 20 to 25 kt
after midnight. Seas 5 to 8 ft. Wave Detail: NW 7 ft at 7 seconds
and S 4 ft at 9 seconds.
.FRI...NW winds 20 to 25 kt. Seas 5 to 7 ft. A chance of rain.
.FRI NIGHT...NW winds 20 to 25 kt. Seas 3 to 5 ft.
.SAT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft.
.SAT NIGHT...NW winds 15 to 20 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.

$$

ANZ232-120700-
Nantucket Sound-
104 PM EST Tue Nov 11 2025

...GALE WARNING IN EFFECT THROUGH WEDNESDAY MORNING...

.THIS AFTERNOON...W winds 25 to 30 kt with gusts up to 40 kt.
Seas 4 to 6 ft. Wave Detail: W 5 ft at 5 seconds and S 2 ft at
9 seconds. A slight chance of rain.
.TONIGHT...W winds 30 to 35 kt, diminishing to 25 to 30 kt after
midnight. Seas 5 to 7 ft. Wave Detail: W 6 ft at 5 seconds and S
2 ft at 10 seconds.
.WED...W winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to
6 ft. Wave Detail: W 4 ft at 5 seconds and S 3 ft at 10 seconds.
A chance of rain.
.WED NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 ft. Wave Detail: W 3 ft at 4 seconds and S 3 ft at
10 seconds.
.THU...W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: W 3 ft at 4 seconds and SW 2 ft at 9 seconds.
A chance of rain in the afternoon.
.THU NIGHT...NW winds 20 to 25 kt. Seas 3 to 5 ft. Wave Detail: W
4 ft at 4 seconds and S 2 ft at 9 seconds. A chance of rain in
the evening.
.FRI AND FRI NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft. A chance of rain.
.SAT...NW winds 15 to 20 kt. Seas 2 to 3 ft.
.SAT NIGHT...NW winds 15 to 20 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.

$$

ANZ233-120700-
Vineyard Sound-
104 PM EST Tue Nov 11 2025

...GALE WARNING IN EFFECT THROUGH WEDNESDAY MORNING...

.THIS AFTERNOON...W winds 25 to 30 kt with gusts up to 35 kt.
Seas 5 to 7 ft. Wave Detail: SW 6 ft at 7 seconds and S 4 ft at
9 seconds. A slight chance of rain and snow.
.TONIGHT...W winds 25 to 30 kt with gusts up to 35 kt. Seas 5 to
8 ft. Wave Detail: W 7 ft at 7 seconds and SW 5 ft at 9 seconds.
.WED...W winds 20 to 25 kt. Seas 4 to 6 ft. Wave Detail: SW 6 ft
at 9 seconds and SW 4 ft at 6 seconds. A chance of rain in the
morning.
.WED NIGHT...W winds 15 to 20 kt. Seas 3 to 5 ft. Wave Detail: SW
5 ft at 9 seconds and W 2 ft at 5 seconds.
.THU AND THU NIGHT...NW winds 20 to 25 kt. Seas 3 to 5 ft. Wave
Detail: W 4 ft at 7 seconds and SW 4 ft at 9 seconds.
.FRI THROUGH SAT...NW winds 15 to 20 kt. Seas 2 to 4 ft. Wave
Detail: W 4 ft at 6 seconds.
.SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 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.

$$

ANZ234-120700-
Buzzards Bay-
104 PM EST Tue Nov 11 2025

...GALE WARNING IN EFFECT THROUGH WEDNESDAY MORNING...

.THIS AFTERNOON...W winds 25 to 30 kt with gusts up to 35 kt.
Seas 3 to 5 ft. Wave Detail: SW 5 ft at 6 seconds and SW 3 ft at
9 seconds. A slight chance of rain.
.TONIGHT...W winds 25 to 30 kt with gusts up to 35 kt. Seas 4 to
6 ft. Wave Detail: W 5 ft at 6 seconds and SW 5 ft at 9 seconds.
.WED...SW winds 20 to 25 kt, becoming W 15 to 20 kt in the
afternoon. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 9 seconds and
SW 4 ft at 6 seconds.
.WED NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. Wave Detail: SW 4 ft at 9 seconds and W 2 ft at
5 seconds.
.THU AND THU NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Wave Detail: SW 4 ft at 9 seconds and W 3 ft at
6 seconds.
.FRI THROUGH SAT...NW winds 15 to 20 kt. Seas 2 to 3 ft. Wave
Detail: W 3 ft at 6 seconds and S 1 foot at 9 seconds.
.SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 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.

$$

ANZ235-120700-
Rhode Island Sound-
104 PM EST Tue Nov 11 2025

...GALE WARNING IN EFFECT THROUGH WEDNESDAY MORNING...

.THIS AFTERNOON...W winds 25 to 30 kt with gusts up to 40 kt.
Seas 5 to 8 ft. Wave Detail: W 7 ft at 7 seconds and SW 7 ft at
9 seconds. A slight chance of rain.
.TONIGHT...W winds 25 to 30 kt. Gusts up to 40 kt in the evening.
Seas 6 to 9 ft. Wave Detail: SW 8 ft at 9 seconds and W 7 ft at
7 seconds.
.WED...W winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to
7 ft. Wave Detail: SW 7 ft at 9 seconds and SW 5 ft at 6 seconds.
.WED NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas
5 to 7 ft. Wave Detail: SW 7 ft at 9 seconds and W 2 ft at
5 seconds.
.THU AND THU NIGHT...NW winds 20 to 25 kt. Seas 4 to 6 ft. Wave
Detail: SW 6 ft at 9 seconds and W 5 ft at 6 seconds.
.FRI...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: W 5 ft at 6 seconds and S 1 foot at
10 seconds.
.FRI NIGHT AND SAT...NW winds 15 to 20 kt. Seas 2 to 3 ft.
.SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 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.

$$

ANZ237-120700-
Block Island Sound-
104 PM EST Tue Nov 11 2025

...GALE WARNING IN EFFECT THROUGH WEDNESDAY MORNING...

.THIS AFTERNOON...W winds 25 to 30 kt with gusts up to 35 kt.
Seas 5 to 7 ft. Wave Detail: W 6 ft at 5 seconds and S 4 ft at
9 seconds. A chance of rain.
.TONIGHT...W winds 25 to 30 kt with gusts up to 35 kt. Seas 5 to
8 ft. Wave Detail: W 6 ft at 6 seconds and S 4 ft at 9 seconds.
.WED...W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. Wave Detail: S 5 ft at 9 seconds and W 4 ft at 5 seconds.
.WED NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 6 ft. Wave Detail: S 5 ft at 9 seconds and W 3 ft at
4 seconds.
.THU AND THU NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt.
Seas 3 to 5 ft. Wave Detail: S 4 ft at 9 seconds and W 3 ft at
4 seconds.
.FRI AND FRI NIGHT...NW winds 15 to 20 kt. Seas 2 to 4 ft. Wave
Detail: W 3 ft at 4 seconds and S 1 foot at 9 seconds.
.SAT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft.
.SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 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.

$$

ANZ230-120700-
Boston Harbor-
104 PM EST Tue Nov 11 2025

...GALE WARNING IN EFFECT UNTIL 11 PM EST THIS EVENING...

.THIS AFTERNOON...W winds 20 to 25 kt with gusts up to 30 kt.
Waves around 2 ft. A slight chance of rain and snow.
.TONIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Waves
around 2 ft.
.WED...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around
2 ft.
.WED NIGHT...W winds 10 to 15 kt. Waves around 2 ft in the
evening, then 1 foot or less.
.THU AND THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft.
.FRI THROUGH SAT...NW winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft.
.SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 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.

$$

ANZ236-120700-
Narragansett Bay-
104 PM EST Tue Nov 11 2025

...GALE WARNING IN EFFECT UNTIL 11 PM EST THIS EVENING...

.THIS AFTERNOON...W winds 20 to 25 kt with gusts up to 30 kt.
Waves 3 to 5 ft. A slight chance of rain.
.TONIGHT...W winds 20 to 25 kt, diminishing to 15 to 20 kt after
midnight. Gusts up to 30 kt. Waves 3 to 5 ft.
.WED...SW winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to
4 ft.
.WED NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Waves 2 to 4 ft.
.THU AND THU NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt.
Waves 2 to 3 ft.
.FRI THROUGH SAT...NW winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft.
.SAT NIGHT...NW 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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