fzus51 kbox 100904
cwfbox
expires:202512102200;;324560

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am est wed dec 10 2025

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


anz231-102200-
cape cod bay-
404 am est wed dec 10 2025

...gale warning in effect through friday afternoon...

.today...sw winds 15 to 20 kt, becoming s 20 to 25 kt this
afternoon. gusts up to 30 kt. seas 3 to 5 ft. wave detail: s 3 ft
at 4 seconds and se 2 ft at 8 seconds. a slight chance of rain
this afternoon. 
.tonight...sw winds 15 to 20 kt with gusts up to 30 kt. seas 3 to
5 ft. wave detail: sw 3 ft at 4 seconds and s 2 ft at 7 seconds.
a chance of rain. 
.thu...w winds 25 to 30 kt with gusts up to 35 kt. seas 3 to
5 ft. wave detail: w 5 ft at 5 seconds and s 2 ft at 8 seconds. 
.thu night...w winds 25 to 30 kt with gusts up to 45 kt. seas
4 to 6 ft. wave detail: w 6 ft at 5 seconds and s 2 ft at
10 seconds. 
.fri...w winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. gusts up to 40 kt. seas 3 to 5 ft. wave detail: w 5 ft
at 5 seconds and se 1 foot at 10 seconds. 
.fri night...w winds 15 to 20 kt with gusts up to 30 kt,
diminishing to 10 to 15 kt with gusts up to 20 kt after midnight.
seas 2 to 3 ft. wave detail: w 3 ft at 4 seconds and se 1 foot at
10 seconds. 
.sat...w winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. 
.sat night...w winds 10 to 15 kt with gusts up to 25 kt. seas
2 to 3 ft. a chance of snow. 
.sun...w winds 15 to 20 kt with gusts up to 30 kt. seas 2 to
3 ft. a chance of snow. 
.sun night...nw winds 25 to 30 kt with gusts up to 35 kt. seas
3 to 5 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 100904
cwfbox
expires:202512102200;;324564

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am est wed dec 10 2025

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


anz232-102200-
nantucket sound-
404 am est wed dec 10 2025

...gale warning in effect through friday afternoon...

.today...sw winds 15 to 20 kt, becoming s 20 to 25 kt this
afternoon. gusts up to 30 kt. seas 4 to 6 ft. wave detail: sw
5 ft at 5 seconds and se 2 ft at 9 seconds. 
.tonight...sw winds 20 to 25 kt with gusts up to 30 kt. seas 4 to
6 ft. wave detail: sw 5 ft at 5 seconds and s 2 ft at 8 seconds.
a chance of rain after midnight. 
.thu...w winds 20 to 25 kt, increasing to 25 to 30 kt in the
afternoon. 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. 
.thu night...w winds 25 to 30 kt with gusts up to 45 kt. seas
4 to 6 ft. wave detail: w 5 ft at 5 seconds and s 2 ft at
10 seconds. 
.fri...w winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. gusts up to 40 kt. seas 4 to 6 ft. wave detail: w 5 ft
at 5 seconds and s 1 foot at 10 seconds. 
.fri night...w winds 15 to 20 kt with gusts up to 30 kt,
diminishing to 10 to 15 kt with gusts up to 20 kt after midnight.
seas 3 to 5 ft, subsiding to 2 to 3 ft after midnight. wave
detail: w 3 ft at 4 seconds. 
.sat...w winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
3 ft. 
.sat night...w winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 4 ft. a chance of snow. 
.sun...w winds 20 to 25 kt with gusts up to 30 kt. seas 2 to
4 ft. a chance of snow. vsby 1 to 3 nm. 
.sun night...nw winds 25 to 30 kt with gusts up to 35 kt. seas
3 to 5 ft. light freezing spray.  

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 100904
cwfbox
expires:202512102200;;324565

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am est wed dec 10 2025

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


anz233-102200-
vineyard sound-
404 am est wed dec 10 2025

...gale warning in effect through friday afternoon...

.today...sw winds 20 to 25 kt, becoming s 25 to 30 kt this
afternoon. seas 5 to 7 ft. wave detail: sw 7 ft at 7 seconds and
se 1 foot at 8 seconds. a slight chance of rain this afternoon. 
.tonight...sw winds 25 to 30 kt, becoming w 20 to 25 kt after
midnight. seas 6 to 9 ft. wave detail: sw 8 ft at 9 seconds. a
chance of rain. 
.thu...w winds 20 to 25 kt, increasing to 25 to 30 kt in the
afternoon. seas 5 to 7 ft. wave detail: sw 7 ft at 8 seconds and
s 4 ft at 9 seconds. 
.thu night...w winds 25 to 30 kt with gusts up to 45 kt. seas
5 to 7 ft. wave detail: sw 7 ft at 8 seconds and s 3 ft at
10 seconds. 
.fri...w winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. gusts up to 40 kt. seas 4 to 6 ft. wave detail: sw
6 ft at 7 seconds and se 1 foot at 10 seconds. 
.fri night...w winds 15 to 20 kt with gusts up to 30 kt,
diminishing to 10 to 15 kt with gusts up to 20 kt after midnight.
seas 3 to 5 ft, subsiding to 2 to 3 ft after midnight. wave
detail: sw 4 ft at 7 seconds, becoming w 3 ft at 6 seconds. 
.sat...w winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
4 ft. 
.sat night...w winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 4 ft. a chance of snow. 
.sun...w winds 20 to 25 kt with gusts up to 30 kt. seas 3 to
4 ft. a chance of snow. 
.sun night...nw winds 25 to 30 kt with gusts up to 35 kt. seas
3 to 5 ft. light freezing spray.  

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 100904
cwfbox
expires:202512102200;;324566

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am est wed dec 10 2025

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


anz234-102200-
buzzards bay-
404 am est wed dec 10 2025

...gale warning in effect through friday afternoon...

.today...sw winds 20 to 25 kt, becoming s 25 to 30 kt this
afternoon. seas 4 to 6 ft. wave detail: sw 6 ft at 7 seconds and
se 2 ft at 8 seconds. a slight chance of rain this afternoon. 
.tonight...sw winds 25 to 30 kt, becoming w 15 to 20 kt after
midnight. seas 4 to 6 ft. wave detail: sw 6 ft at 8 seconds. a
chance of rain. 
.thu...w winds 20 to 25 kt with gusts up to 35 kt. seas 3 to
5 ft. wave detail: w 5 ft at 7 seconds and s 4 ft at 9 seconds. 
.thu night...w winds 20 to 25 kt with gusts up to 45 kt. seas
3 to 5 ft. wave detail: w 5 ft at 7 seconds and s 2 ft at
10 seconds. 
.fri and fri night...w winds 15 to 20 kt with gusts up to 40 kt.
seas 2 to 4 ft. wave detail: sw 4 ft at 7 seconds and se 1 foot
at 10 seconds. 
.sat...w winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: sw 2 ft at 6 seconds and se 1 foot at
9 seconds. 
.sat night and sun...w winds 15 to 20 kt. gusts up to 30 kt. seas
2 to 3 ft. a chance of snow. 
.sun night...nw winds 20 to 25 kt with gusts up to 30 kt. seas
around 3 ft. light freezing spray.  

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 100904
cwfbox
expires:202512102200;;324567

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am est wed dec 10 2025

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


anz235-102200-
rhode island sound-
404 am est wed dec 10 2025

...gale warning in effect through friday afternoon...

.today...sw winds 20 to 25 kt, increasing to 25 to 30 kt this
afternoon. seas 5 to 7 ft, building to 6 to 9 ft this afternoon.
wave detail: sw 7 ft at 7 seconds and se 1 foot at 9 seconds,
becoming sw 9 ft at 8 seconds and se 3 ft at 9 seconds. a chance
of rain this afternoon. 
.tonight...sw winds 25 to 30 kt, becoming w 20 to 25 kt after
midnight. seas 7 to 10 ft. wave detail: sw 10 ft at 9 seconds. a
chance of rain. vsby 1 to 3 nm in the evening. 
.thu...w winds 25 to 30 kt with gusts up to 40 kt. seas 5 to
8 ft. wave detail: w 8 ft at 8 seconds and sw 6 ft at 9 seconds. 
.thu night...w winds 25 to 30 kt with gusts up to 45 kt. seas
5 to 8 ft. wave detail: w 8 ft at 8 seconds and s 5 ft at
10 seconds. 
.fri...w winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. gusts up to 40 kt. seas 5 to 7 ft. wave detail: w 7 ft
at 8 seconds and se 1 foot at 10 seconds. 
.fri night...w winds 15 to 20 kt with gusts up to 30 kt,
diminishing to 10 to 15 kt with gusts up to 20 kt after midnight.
seas 3 to 5 ft. wave detail: w 5 ft at 7 seconds and s 1 foot at
9 seconds. 
.sat...w winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
4 ft. 
.sat night...w winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 4 ft. a chance of snow. 
.sun...w winds 20 to 25 kt with gusts up to 30 kt. seas 3 to
5 ft. a chance of snow. 
.sun night...nw winds 25 to 30 kt with gusts up to 35 kt. seas
4 to 6 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 100904
cwfbox
expires:202512102200;;324570

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am est wed dec 10 2025

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


anz236-102200-
narragansett bay-
404 am est wed dec 10 2025

...gale warning in effect from thursday morning through friday
afternoon...

.today...sw winds 15 to 20 kt, increasing to 20 to 25 kt this
afternoon. gusts up to 35 kt. waves 2 to 4 ft, building to 4 to
6 ft this afternoon. a chance of rain this afternoon. 
.tonight...sw winds 20 to 25 kt, becoming w 15 to 20 kt after
midnight. gusts up to 30 kt. waves 4 to 6 ft. a chance of rain.
vsby 1 to 3 nm in the evening. 
.thu...w winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. gusts up to 35 kt. waves around 3 ft, except 4 to 6 ft
at the bay entrance. 
.thu night...w winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. gusts up to 40 kt. waves around 3 ft. 
.fri and fri night...w winds 15 to 20 kt with gusts up to 35 kt.
waves 2 to 3 ft. 
.sat...w winds 10 to 15 kt with gusts up to 20 kt. waves 2 to
3 ft. 
.sat night and sun...w winds 10 to 15 kt, increasing to 15 to
20 kt. gusts up to 25 kt. waves 2 to 3 ft. a chance of snow. 
.sun night...nw winds 15 to 20 kt with gusts up to 30 kt. waves
around 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 100904
cwfbox
expires:202512102200;;324558

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am est wed dec 10 2025

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


anz250-102200-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
404 am est wed dec 10 2025

...gale warning in effect through friday afternoon...

.today...sw winds 20 to 25 kt with gusts up to 35 kt. seas 3 to
4 ft, building to 4 to 6 ft this afternoon. wave detail: sw 4 ft
at 4 seconds and se 2 ft at 7 seconds, becoming s 5 ft at
5 seconds and se 3 ft at 9 seconds. a slight chance of rain this
afternoon. 
.tonight...sw winds 20 to 25 kt with gusts up to 35 kt. seas 4 to
6 ft. wave detail: s 5 ft at 6 seconds. a chance of rain after
midnight with vsby 1 to 3 nm. 
.thu...w winds 25 to 30 kt, increasing to 30 to 35 kt in the
afternoon. seas 5 to 7 ft. wave detail: w 7 ft at 6 seconds and
se 2 ft at 8 seconds. 
.thu night...w winds 30 to 35 kt with gusts up to 45 kt. seas
6 to 9 ft. wave detail: w 9 ft at 6 seconds and se 2 ft at
10 seconds. 
.fri...w winds 25 to 30 kt, diminishing to 20 to 25 kt in the
afternoon. gusts up to 40 kt. seas 5 to 7 ft. wave detail: w 7 ft
at 6 seconds and se 1 foot at 10 seconds. 
.fri night...w winds 20 to 25 kt with gusts up to 35 kt,
diminishing to 15 to 20 kt with gusts up to 25 kt after midnight.
seas 4 to 6 ft, subsiding to 2 to 4 ft after midnight. wave
detail: w 6 ft at 5 seconds and se 1 foot at 10 seconds, becoming
w 4 ft at 5 seconds and se 1 foot at 10 seconds. 
.sat...w winds 10 to 15 kt with gusts up to 25 kt. seas 2 to
3 ft. 
.sat night...w winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 4 ft. a chance of snow. 
.sun...w winds 20 to 25 kt with gusts up to 30 kt. seas 3 to
5 ft. a chance of snow. vsby 1 nm or less. 
.sun night...nw winds 25 to 30 kt with gusts up to 35 kt. seas
5 to 7 ft. a chance of snow showers. vsby 1 nm or less.  

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 100904
cwfbox
expires:202512102200;;324561

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am est wed dec 10 2025

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


anz254-102200-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
404 am est wed dec 10 2025

...gale warning in effect through friday afternoon...

.today...sw winds 15 to 20 kt, becoming s 20 to 25 kt this
afternoon. gusts up to 30 kt. seas 4 to 6 ft. wave detail: s 6 ft
at 6 seconds and e 1 foot at 9 seconds. 
.tonight...sw winds 20 to 25 kt, becoming w 15 to 20 kt after
midnight. gusts up to 35 kt. seas 5 to 7 ft, except 8 to 11 ft s
and e of nantucket. wave detail: s 6 ft at 7 seconds. 
.thu...w winds 25 to 30 kt with gusts up to 40 kt. seas 5 to
7 ft, building to 6 to 9 ft in the afternoon. s and e of
nantucket, seas 8 to 11 ft. wave detail: w 6 ft at 5 seconds and
s 4 ft at 9 seconds, becoming w 9 ft at 6 seconds and s 4 ft at
10 seconds. 
.thu night...w winds 25 to 35 kt with gusts up to 45 kt. seas
6 to 9 ft. wave detail: w 9 ft at 7 seconds and s 3 ft at
10 seconds. 
.fri...w winds 25 to 30 kt with gusts up to 45 kt, diminishing to
20 to 25 kt with gusts up to 35 kt in the afternoon. seas 5 to
8 ft. wave detail: w 8 ft at 7 seconds and s 2 ft at 10 seconds. 
.fri night...w winds 20 to 25 kt, diminishing to 10 to 15 kt
after midnight. gusts up to 30 kt. seas 4 to 6 ft. wave detail: w
6 ft at 6 seconds and s 1 foot at 9 seconds. 
.sat...w winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. 
.sat night...w winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. a chance of rain and snow. 
.sun...w winds 15 to 20 kt with gusts up to 30 kt. seas 4 to
6 ft. a chance of snow and rain. vsby 1 nm or less. 
.sun night...nw winds 25 to 30 kt with gusts up to 35 kt. seas
5 to 7 ft. a chance of snow showers. vsby 1 nm or less.  

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 100904
cwfbox
expires:202512102200;;324562

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am est wed dec 10 2025

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


anz255-102200-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
404 am est wed dec 10 2025

...gale warning in effect through friday afternoon...

.today...sw winds 20 to 25 kt, becoming s 25 to 30 kt this
afternoon. seas 6 to 8 ft, building to 7 to 10 ft this afternoon.
wave detail: sw 8 ft at 7 seconds and e 1 foot at 9 seconds,
becoming sw 10 ft at 8 seconds and se 1 foot at 9 seconds. 
.tonight...sw winds 25 to 30 kt with gusts up to 35 kt. seas 9 to
12 ft. wave detail: sw 12 ft at 9 seconds and s 2 ft at
8 seconds. a chance of rain after midnight. 
.thu...w winds 25 to 30 kt with gusts up to 40 kt. seas 8 to
11 ft. wave detail: sw 11 ft at 9 seconds and s 5 ft at
10 seconds. 
.thu night...w winds 30 to 35 kt with gusts up to 45 kt. seas
8 to 11 ft. wave detail: w 11 ft at 9 seconds and s 2 ft at
10 seconds. 
.fri...w winds 25 to 30 kt with gusts up to 45 kt, diminishing to
20 to 25 kt with gusts up to 35 kt in the afternoon. seas 7 to
10 ft. wave detail: w 10 ft at 9 seconds and se 1 foot at
9 seconds. 
.fri night...w winds 20 to 25 kt with gusts up to 30 kt,
diminishing to 15 to 20 kt after midnight. seas 5 to 8 ft,
subsiding to 4 to 6 ft after midnight. wave detail: w 6 ft at
8 seconds, becoming w 5 ft at 7 seconds. 
.sat...w winds 20 to 25 kt. seas 4 to 6 ft. 
.sat night...w winds 20 to 25 kt with gusts up to 30 kt. seas
5 to 7 ft. a chance of rain. 
.sun...w winds 25 to 30 kt. seas 5 to 7 ft. rain likely with a
chance of snow. vsby 1 nm or less. 
.sun night...nw winds 25 to 35 kt with gusts up to 40 kt. seas
7 to 10 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.

$$