fzus51 kbox 300306
cwfbox
expires:202512301600;;470668

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1006 pm est mon dec 29 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz231-301600-
cape cod bay-
1006 pm est mon dec 29 2025

...gale warning in effect through wednesday morning...

.overnight...w winds 20 to 25 kt with gusts up to 30 kt,
increasing to 25 to 30 kt with gusts up to 40 kt. seas 3 to 5 ft.
wave detail: w 5 ft at 5 seconds and sw 3 ft at 9 seconds. 
.tue...w winds 25 to 30 kt with gusts up to 45 kt. seas 3 to
5 ft. wave detail: w 5 ft at 5 seconds and sw 4 ft at 9 seconds.
light freezing spray in the morning. 
.tue night...w winds 25 to 30 kt, diminishing to 20 to 25 kt
after midnight. gusts up to 40 kt. seas 3 to 5 ft. wave detail: w
5 ft at 5 seconds and sw 3 ft at 8 seconds. light freezing spray.
.wed...sw 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 sw 2 ft at 8 seconds. 
.wed night...sw winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft. wave detail: sw 2 ft at 3 seconds and sw 2 ft at
8 seconds. a chance of snow in the evening, then snow likely
after midnight with vsby 1 to 3 nm. 
.thu...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 sw 2 ft at 8 seconds.
a chance of snow. 
.thu night...w winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft. 
.fri through sat night...nw winds 10 to 15 kt with gusts up to
20 kt. seas around 2 ft.  

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.

$$

fzus51 kbox 300306
cwfbox
expires:202512301600;;470672

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1006 pm est mon dec 29 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz232-301600-
nantucket sound-
1006 pm est mon dec 29 2025

...gale warning in effect through wednesday morning...

.overnight...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 sw 3 ft at
9 seconds. 
.tue...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 sw 3 ft at 10 seconds.
.tue night...w winds 25 to 30 kt with gusts up to 40 kt. seas
5 to 7 ft. wave detail: w 5 ft at 5 seconds and sw 3 ft at
9 seconds. 
.wed...w winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. seas 4 to 6 ft. wave detail: w 4 ft at 5 seconds and
sw 3 ft at 9 seconds. a chance of snow in the afternoon. 
.wed night...w winds 15 to 20 kt. seas 3 to 5 ft. wave detail: w
3 ft at 4 seconds and sw 2 ft at 8 seconds. a chance of snow in
the evening. snow likely after midnight with vsby 1 nm or less. 
.thu...nw winds 15 to 20 kt. seas 3 to 5 ft. wave detail: nw 3 ft
at 4 seconds and sw 2 ft at 8 seconds. a chance of snow. vsby
1 nm or less in the morning. 
.thu night...nw winds 15 to 20 kt. seas 2 to 4 ft. a chance of
light freezing spray in the evening. 
.fri through sat night...nw winds 10 to 15 kt with gusts up to
20 kt. seas 2 to 3 ft.  

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.

$$

fzus51 kbox 300306
cwfbox
expires:202512301600;;470673

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1006 pm est mon dec 29 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz233-301600-
vineyard sound-
1006 pm est mon dec 29 2025

...gale warning in effect through wednesday morning...

.overnight...w winds 25 to 30 kt, increasing to 30 to 35 kt. seas
6 to 9 ft. wave detail: sw 9 ft at 9 seconds and w 3 ft at
5 seconds. 
.tue...w winds 25 to 30 kt with gusts up to 45 kt. seas 6 to
9 ft. wave detail: sw 9 ft at 9 seconds and w 3 ft at 6 seconds. 
.tue night...w winds 25 to 30 kt with gusts up to 40 kt. seas
5 to 8 ft. wave detail: sw 8 ft at 9 seconds and w 3 ft at
5 seconds. 
.wed...w winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. seas 4 to 6 ft. wave detail: sw 6 ft at 8 seconds and
w 2 ft at 5 seconds. 
.wed night...w winds 15 to 20 kt, increasing to 20 to 25 kt after
midnight. seas 4 to 6 ft. wave detail: sw 5 ft at 7 seconds and w
2 ft at 4 seconds. a chance of snow in the evening, then snow
likely with a chance of rain after midnight with vsby 1 to 3 nm. 
.thu...nw winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. wave detail: sw 5 ft at 8 seconds and nw 2 ft at 4 seconds.
a chance of snow. a chance of light freezing spray in the
morning. 
.thu night...nw winds 15 to 20 kt. seas 2 to 4 ft. a chance of
light freezing spray in the evening. 
.fri through sat night...nw winds 10 to 15 kt with gusts up to
20 kt. seas 2 to 3 ft.  

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.

$$

fzus51 kbox 300306
cwfbox
expires:202512301600;;470674

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1006 pm est mon dec 29 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz234-301600-
buzzards bay-
1006 pm est mon dec 29 2025

...gale warning in effect through wednesday morning...

.overnight...w winds 25 to 30 kt with gusts up to 40 kt. seas
4 to 6 ft. wave detail: sw 6 ft at 9 seconds and w 4 ft at
5 seconds. 
.tue...w winds 25 to 30 kt with gusts up to 40 kt. seas 4 to
6 ft. wave detail: sw 6 ft at 9 seconds and w 4 ft at 5 seconds. 
.tue night...w winds 25 to 30 kt with gusts up to 40 kt. seas
4 to 6 ft. wave detail: sw 6 ft at 9 seconds and w 4 ft at
5 seconds. light freezing spray. 
.wed...w winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. seas 2 to 4 ft. wave detail: sw 4 ft at 8 seconds and
w 3 ft at 5 seconds. 
.wed night...w winds 15 to 20 kt. seas 3 to 5 ft. wave detail: sw
4 ft at 7 seconds and w 2 ft at 4 seconds. a chance of snow. vsby
1 to 3 nm after midnight.
.thu...nw winds 15 to 20 kt. seas 2 to 4 ft. wave detail: sw 4 ft
at 8 seconds and nw 2 ft at 4 seconds. a chance of snow. a chance
of light freezing spray in the morning. 
.thu night...nw winds 15 to 20 kt, becoming w 10 to 15 kt after
midnight. seas 2 to 3 ft. 
.fri through sat night...nw winds 10 to 15 kt with gusts up to
20 kt. seas around 2 ft.  

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.

$$

fzus51 kbox 300306
cwfbox
expires:202512301600;;470675

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1006 pm est mon dec 29 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz235-301600-
rhode island sound-
1006 pm est mon dec 29 2025

...gale warning in effect through wednesday morning...

.overnight...w winds 30 to 35 kt with gusts up to 40 kt. seas
8 to 11 ft. wave detail: sw 10 ft at 9 seconds and w 5 ft at
6 seconds. 
.tue...w winds 30 to 35 kt, diminishing to 25 to 30 kt in the
afternoon. gusts up to 45 kt. seas 8 to 11 ft. wave detail: sw
10 ft at 9 seconds and w 5 ft at 6 seconds. 
.tue night...w winds 25 to 30 kt with gusts up to 40 kt. seas
6 to 9 ft. wave detail: sw 9 ft at 9 seconds and w 5 ft at
6 seconds. 
.wed...w winds 20 to 25 kt. seas 5 to 7 ft. wave detail: sw 7 ft
at 8 seconds and w 3 ft at 5 seconds. 
.wed night...w winds 20 to 25 kt. seas 5 to 7 ft. wave detail: sw
6 ft at 6 seconds and e 1 foot at 12 seconds. a chance of snow. a
chance of rain after midnight with vsby 1 to 3 nm. 
.thu...nw winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. seas 4 to 6 ft. wave detail: sw 6 ft at 8 seconds and
nw 3 ft at 5 seconds. a chance of light freezing spray in the
morning. a chance of snow in the morning. 
.thu night...nw winds 15 to 20 kt. seas 2 to 4 ft. a chance of
light freezing spray in the evening. 
.fri through sat...nw winds 15 to 20 kt. seas 2 to 4 ft. 
.sat night...nw winds 10 to 15 kt. seas around 2 ft.  

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.

$$

fzus51 kbox 300306
cwfbox
expires:202512301600;;470678

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1006 pm est mon dec 29 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz236-301600-
narragansett bay-
1006 pm est mon dec 29 2025

...gale warning in effect through late tuesday night...

.overnight...w winds 20 to 25 kt with gusts up to 35 kt. waves
4 to 6 ft. 
.tue...w winds 20 to 25 kt with gusts up to 40 kt. waves 4 to
6 ft. light freezing spray in the morning. 
.tue night...w winds 15 to 20 kt with gusts up to 35 kt. waves
3 to 5 ft. light freezing spray. 
.wed...w winds 15 to 20 kt, becoming sw 10 to 15 kt in the
afternoon. gusts up to 25 kt. waves 2 to 4 ft. 
.wed night and thu...nw winds 10 to 15 kt with gusts up to 20 kt.
waves 2 to 4 ft. a chance of snow. 
.thu night...w winds 10 to 15 kt. gusts up to 20 kt in the
evening. waves 2 to 3 ft. 
.fri through sat night...nw winds 10 to 15 kt with gusts up to
20 kt. waves around 2 ft.  

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.

$$

fzus51 kbox 300306
cwfbox
expires:202512301600;;470666

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1006 pm est mon dec 29 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz250-301600-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
1006 pm est mon dec 29 2025

...gale warning in effect through wednesday morning...

.overnight...w winds 25 to 30 kt, increasing to 30 to 35 kt. seas
4 to 6 ft, building to 5 to 8 ft. wave detail: w 5 ft at
5 seconds and se 2 ft at 6 seconds, becoming sw 8 ft at 7 seconds
and se 1 foot at 6 seconds. 
.tue...w winds 30 to 35 kt with gusts up to 45 kt. seas 6 to
9 ft. wave detail: w 8 ft at 7 seconds and se 1 foot at
11 seconds. light freezing spray. 
.tue night...w winds 25 to 30 kt. gusts up to 45 kt in the
evening. seas 6 to 9 ft, subsiding to 5 to 7 ft after midnight.
wave detail: w 8 ft at 7 seconds and se 1 foot at 12 seconds,
becoming sw 7 ft at 7 seconds and se 1 foot at 12 seconds. light
freezing spray. 
.wed...w winds 20 to 25 kt, becoming sw 15 to 20 kt in the
afternoon. gusts up to 30 kt. seas 4 to 6 ft. wave detail: w 6 ft
at 5 seconds and s 2 ft at 8 seconds. 
.wed night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. wave detail: w 4 ft at 4 seconds and s 1 foot at
8 seconds. a chance of snow. vsby 1 to 3 nm after midnight. 
.thu...nw winds 15 to 20 kt with gusts up to 25 kt. seas 4 to
5 ft. wave detail: w 4 ft at 5 seconds and e 2 ft at 13 seconds.
a chance of light freezing spray. a chance of snow. vsby 1 to
3 nm in the morning. 
.thu night...w winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. a chance of light freezing spray. 
.fri through sat night...nw winds 15 to 20 kt. seas 2 to 4 ft.  

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.

$$

fzus51 kbox 300306
cwfbox
expires:202512301600;;470669

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1006 pm est mon dec 29 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz254-301600-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
1006 pm est mon dec 29 2025

...gale warning in effect through wednesday morning...

.overnight...w winds 25 to 30 kt, increasing to 30 to 35 kt. seas
7 to 10 ft. s and e of nantucket, seas 10 to 14 ft, building to
12 to 16 ft. wave detail: w 7 ft at 6 seconds and s 7 ft at
9 seconds. 
.tue...w winds 25 to 30 kt with gusts up to 45 kt. seas 7 to
10 ft, except 12 to 16 ft s and e of nantucket. wave detail: w
7 ft at 6 seconds and sw 7 ft at 10 seconds. 
.tue night...w winds 25 to 30 kt with gusts up to 40 kt. seas
7 to 10 ft, except 10 to 14 ft s and e of nantucket. wave detail:
w 7 ft at 6 seconds and sw 5 ft at 9 seconds. 
.wed...w winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. seas 5 to 7 ft. wave detail: w 6 ft at 6 seconds and s
3 ft at 9 seconds. a chance of snow in the afternoon. 
.wed night...w winds 15 to 20 kt. seas 4 to 6 ft, except 7 to
10 ft s and e of nantucket. wave detail: s 4 ft at 8 seconds and
w 3 ft at 5 seconds. a chance of snow and rain in the evening,
then snow and rain likely after midnight with vsby 1 nm or less. 
.thu...nw winds 15 to 20 kt. seas 5 to 7 ft. wave detail: nw 4 ft
at 4 seconds and s 4 ft at 9 seconds. a chance of snow. vsby 1 nm
or less in the morning. 
.thu night...nw winds 15 to 20 kt. seas 3 to 5 ft. 
.fri through sat night...nw winds 10 to 15 kt with gusts up to
20 kt. seas 2 to 4 ft.  

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.

$$

fzus51 kbox 300306
cwfbox
expires:202512301600;;470670

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1006 pm est mon dec 29 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz255-301600-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
1006 pm est mon dec 29 2025

...gale warning in effect through wednesday morning...

.overnight...w winds 30 to 40 kt with gusts up to 45 kt. seas
11 to 15 ft. wave detail: sw 14 ft at 9 seconds and w 3 ft at
6 seconds. 
.tue...w winds 30 to 35 kt with gusts up to 45 kt. seas 11 to
15 ft. wave detail: sw 14 ft at 9 seconds and w 3 ft at
6 seconds. 
.tue night...w winds 30 to 35 kt, becoming 25 to 35 kt after
midnight. gusts up to 45 kt. seas 10 to 14 ft. wave detail: w
12 ft at 9 seconds and w 3 ft at 6 seconds. 
.wed...w winds 25 to 30 kt, diminishing to 20 to 25 kt in the
afternoon. seas 7 to 10 ft. wave detail: w 10 ft at 7 seconds and
e 1 foot at 12 seconds. a chance of snow. a chance of rain in the
afternoon. 
.wed night...w winds 20 to 25 kt. seas 7 to 10 ft. wave detail:
sw 8 ft at 8 seconds and w 1 foot at 4 seconds. a chance of rain
and snow in the evening, then rain and snow likely after midnight
with vsby 1 nm or less. 
.thu...nw winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. seas 6 to 9 ft. wave detail: sw 8 ft at 8 seconds and
nw 2 ft at 5 seconds. a chance of snow. vsby 1 nm or less in the
morning. 
.thu night...nw winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. seas 4 to 6 ft. a chance of light freezing spray.
.fri and fri night...w winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 5 ft. 
.sat and sat night...nw winds 10 to 15 kt. seas 2 to 4 ft.  

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.

$$