fzus51 kbox 130903
cwfbox
expires:202512132200;;498572

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am est sat dec 13 2025

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


anz231-132200-
cape cod bay-
403 am est sat dec 13 2025

...small craft advisory in effect from 10 am est this morning
through late tonight...
...gale watch in effect from sunday evening through monday
afternoon...

.today...sw winds 10 to 15 kt with gusts up to 25 kt. seas around
2 ft, building to 3 to 4 ft this afternoon. wave detail: w 2 ft
at 5 seconds and e 1 foot at 8 seconds, becoming sw 2 ft at
3 seconds and e 1 foot at 9 seconds. 
.tonight...w winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. seas 2 to 3 ft. wave
detail: w 2 ft at 3 seconds and se 1 foot at 11 seconds. a chance
of rain in the evening, then snow with rain likely after midnight
with vsby 1 nm or less. 
.sun...nw winds 10 to 15 kt with gusts up to 20 kt, increasing to
15 to 20 kt with gusts up to 30 kt in the afternoon. seas 2 to
3 ft. wave detail: nw 3 ft at 4 seconds and se 1 foot at
11 seconds. snow. vsby 1 nm or less. 
.sun night...nw winds 25 to 30 kt with gusts up to 40 kt. seas
4 to 6 ft. wave detail: n 6 ft at 7 seconds. a chance of snow
showers. vsby 1 nm or less in the evening. 
.mon...nw winds 25 to 30 kt, diminishing to 15 to 20 kt in the
afternoon. gusts up to 40 kt. seas 4 to 6 ft. wave detail: n 6 ft
at 7 seconds. 
.mon night...w winds around 15 kt. gusts up to 30 kt, decreasing
to 20 kt after midnight. seas 3 to 4 ft. wave detail: n 4 ft at
7 seconds. 
.tue and tue night...w winds 10 to 15 kt, becoming sw. gusts up
to 25 kt. seas 2 to 4 ft. 
.wed...sw winds 15 to 20 kt with gusts up to 30 kt. seas 3 to
5 ft. 
.wed night...w winds 10 to 15 kt with gusts up to 25 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 130903
cwfbox
expires:202512132200;;498576

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am est sat dec 13 2025

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


anz232-132200-
nantucket sound-
403 am est sat dec 13 2025

...small craft advisory in effect from 10 am est this morning
through late tonight...
...gale watch in effect from sunday evening through monday
afternoon...

.today...sw winds 10 to 15 kt, increasing to 15 to 20 kt this
afternoon. gusts up to 25 kt. seas 2 to 3 ft. wave detail: sw
3 ft at 4 seconds and ne 1 foot at 9 seconds. a slight chance of
rain this afternoon. 
.tonight...w winds 15 to 20 kt, becoming nw 5 to 10 kt after
midnight. seas 2 to 3 ft. wave detail: w 3 ft at 5 seconds and se
1 foot at 14 seconds. a chance of rain in the evening, then rain
and snow after midnight with vsby 1 nm or less. 
.sun...nw winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. gusts up to 25 kt. seas 2 to 3 ft. wave detail: nw
3 ft at 4 seconds and se 1 foot at 11 seconds. snow. vsby 1 nm or
less. 
.sun night...nw winds 25 to 30 kt with gusts up to 40 kt. seas
3 to 5 ft. wave detail: nw 5 ft at 4 seconds and e 1 foot at
9 seconds. light freezing spray after midnight. a chance of snow
showers after midnight. 
.mon...nw winds 25 to 30 kt with gusts up to 40 kt, diminishing
to 15 to 20 kt with gusts up to 30 kt in the afternoon. seas 4 to
6 ft, subsiding to 3 to 4 ft in the afternoon. wave detail: nw
5 ft at 4 seconds and e 1 foot at 9 seconds, becoming w 4 ft at
4 seconds and ne 1 foot at 9 seconds. light freezing spray. 
.mon night...w winds 15 to 20 kt with gusts up to 30 kt. seas
around 3 ft. wave detail: w 3 ft at 4 seconds and ne 1 foot at
10 seconds. 
.tue through wed night...w winds 15 to 20 kt with gusts up to
30 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 130903
cwfbox
expires:202512132200;;498577

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am est sat dec 13 2025

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


anz233-132200-
vineyard sound-
403 am est sat dec 13 2025

...small craft advisory in effect from 10 am est this morning
through late tonight...
...gale watch in effect from sunday evening through monday
afternoon...

.today...sw winds 10 to 15 kt, increasing to 15 to 20 kt this
afternoon. gusts up to 25 kt. seas 2 to 4 ft. wave detail: sw
4 ft at 5 seconds. 
.tonight...w 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: sw
4 ft at 6 seconds. a chance of rain in the evening, then rain and
snow after midnight with vsby 1 nm or less. 
.sun...n winds 10 to 15 kt, becoming nw 15 to 20 kt in the
afternoon. gusts up to 25 kt. seas 2 to 3 ft. wave detail: w 2 ft
at 6 seconds and se 1 foot at 12 seconds. snow, mainly in the
morning. vsby 1 nm or less. 
.sun night...nw winds 20 to 25 kt, increasing to 25 to 30 kt
after midnight. seas 3 to 4 ft. wave detail: nw 4 ft at 5 seconds
and e 1 foot at 9 seconds. light freezing spray. 
.mon...nw winds 25 to 30 kt, diminishing to 15 to 20 kt in the
afternoon. seas 3 to 4 ft. wave detail: nw 4 ft at 5 seconds and
se 1 foot at 8 seconds. light freezing spray. 
.mon night...w winds 15 to 20 kt with gusts up to 30 kt. seas
2 to 3 ft. wave detail: w 3 ft at 5 seconds and se 1 foot at
10 seconds. 
.tue and tue night...w winds 15 to 20 kt, becoming sw. gusts up
to 25 kt. seas 2 to 4 ft. 
.wed...sw winds 20 to 25 kt with gusts up to 30 kt. seas 3 to
5 ft. 
.wed night...w winds 15 to 20 kt with gusts up to 25 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 130903
cwfbox
expires:202512132200;;498578

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am est sat dec 13 2025

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


anz234-132200-
buzzards bay-
403 am est sat dec 13 2025

...small craft advisory in effect from 10 am est this morning
through late tonight...
...gale watch in effect from sunday evening through monday
afternoon...

.today...sw winds 10 to 15 kt, increasing to 15 to 20 kt this
afternoon. gusts up to 25 kt. seas 2 to 4 ft. wave detail: sw
3 ft at 5 seconds. 
.tonight...w winds 15 to 20 kt, becoming nw 5 to 10 kt after
midnight. seas 2 to 3 ft. wave detail: sw 3 ft at 6 seconds and
se 1 foot at 10 seconds. a chance of rain in the evening, then
snow and rain after midnight with vsby 1 nm or less. 
.sun...nw winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. gusts up to 25 kt. seas 2 to 3 ft. wave detail: w 2 ft
at 6 seconds and se 1 foot at 12 seconds. snow, mainly in the
morning. vsby 1 nm or less. 
.sun night...nw winds 20 to 25 kt with gusts up to 35 kt. seas
3 to 4 ft. wave detail: nw 3 ft at 4 seconds and e 1 foot at
10 seconds. light freezing spray. 
.mon...nw winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. gusts up to 35 kt. seas 3 to 5 ft. wave detail: nw
3 ft at 4 seconds and se 1 foot at 9 seconds. light freezing
spray. 
.mon night...w winds 15 to 20 kt with gusts up to 30 kt. seas
2 to 3 ft. wave detail: sw 3 ft at 5 seconds and e 1 foot at
9 seconds. 
.tue and tue night...w winds 10 to 15 kt, becoming sw 15 to
20 kt. gusts up to 25 kt. seas 2 to 4 ft.
.wed...sw winds 20 to 25 kt with gusts up to 30 kt. seas 3 to
5 ft. 
.wed night...w winds 15 to 20 kt with gusts up to 25 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 130903
cwfbox
expires:202512132200;;498579

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am est sat dec 13 2025

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


anz235-132200-
rhode island sound-
403 am est sat dec 13 2025

...small craft advisory in effect from 10 am est this morning
through late tonight...
...gale watch in effect from sunday evening through monday
afternoon...

.today...sw winds 10 to 15 kt, increasing to 15 to 20 kt this
afternoon. gusts up to 25 kt. seas 2 to 3 ft, building to 3 to
5 ft this afternoon. wave detail: sw 3 ft at 6 seconds, becoming
sw 5 ft at 5 seconds and se 1 foot at 10 seconds. 
.tonight...w winds 15 to 20 kt with gusts up to 25 kt, becoming
nw 10 to 15 kt after midnight. seas 3 to 5 ft, subsiding to 2 to
3 ft after midnight. wave detail: sw 5 ft at 6 seconds and se
1 foot at 10 seconds, becoming sw 3 ft at 7 seconds. a chance of
rain in the evening, then rain and snow after midnight with vsby
1 nm or less. 
.sun...nw winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. gusts up to 25 kt. seas 2 to 3 ft. wave detail: w 3 ft
at 7 seconds and se 1 foot at 12 seconds. snow, mainly in the
morning. vsby 1 nm or less. 
.sun night...nw winds 20 to 25 kt, increasing to 25 to 30 kt
after midnight. gusts up to 40 kt. seas 3 to 5 ft. wave detail:
nw 5 ft at 5 seconds and se 2 ft at 11 seconds. 
.mon and mon night...w winds 25 to 30 kt with gusts up to 40 kt.
seas 3 to 5 ft. wave detail: nw 5 ft at 5 seconds and s 2 ft at
9 seconds. 
.tue and tue night...w winds 15 to 20 kt, becoming sw. gusts up
to 25 kt. seas 2 to 4 ft. wave detail: w 4 ft at 7 seconds and se
1 foot at 11 seconds. 
.wed and wed night...sw winds 20 to 25 kt, becoming w 15 to
20 kt. gusts up to 30 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 130903
cwfbox
expires:202512132200;;498582

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am est sat dec 13 2025

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


anz236-132200-
narragansett bay-
403 am est sat dec 13 2025

.today...sw winds 10 to 15 kt with gusts up to 25 kt. waves 2 to
4 ft. 
.tonight...w winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. waves 2 to 4 ft. a
chance of rain in the evening, then snow after midnight with vsby
1 nm or less. 
.sun...nw winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. gusts up to 25 kt. waves 2 to 3 ft. snow, mainly in
the morning. vsby 1 nm or less. 
.sun night...nw winds 15 to 20 kt with gusts up to 35 kt. waves
around 3 ft. 
.mon and mon night...w winds 15 to 20 kt with gusts up to 35 kt.
waves 2 to 3 ft. 
.tue and tue night...w winds 10 to 15 kt, becoming sw. gusts up
to 20 kt. waves 2 to 3 ft. 
.wed...sw winds 15 to 20 kt with gusts up to 30 kt. waves 3 to
5 ft. 
.wed night...w winds 10 to 15 kt with gusts up to 25 kt. waves
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 130903
cwfbox
expires:202512132200;;498570

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am est sat dec 13 2025

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


anz250-132200-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
403 am est sat dec 13 2025

...small craft advisory in effect from 10 am est this morning
through late tonight...
...gale watch in effect from sunday evening through monday
afternoon...

.today...sw winds 10 to 15 kt, increasing to 15 to 20 kt this
afternoon. gusts up to 25 kt. seas 2 to 4 ft. wave detail: w 3 ft
at 4 seconds and e 1 foot at 8 seconds. 
.tonight...w winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. gusts up to 25 kt. seas 2 to 4 ft. wave detail: w 3 ft
at 4 seconds and se 1 foot at 10 seconds. a chance of rain in the
evening, then snow with rain likely after midnight with vsby 1 nm
or less. 
.sun...nw winds 10 to 15 kt with gusts up to 20 kt, increasing to
15 to 20 kt with gusts up to 30 kt in the afternoon. seas 2 to
4 ft. wave detail: nw 3 ft at 4 seconds and se 1 foot at
9 seconds. snow likely, mainly in the morning. vsby 1 nm or less.
.sun night...nw winds 20 to 25 kt, increasing to 25 to 30 kt
after midnight. gusts up to 40 kt. seas 4 to 6 ft, building to
5 to 8 ft after midnight. wave detail: n 6 ft at 5 seconds and se
2 ft at 9 seconds, becoming nw 7 ft at 6 seconds and e 4 ft at
9 seconds. a chance of snow showers. vsby 1 nm or less in the
evening. 
.mon...nw winds 20 to 25 kt with gusts up to 40 kt. seas 5 to
8 ft, subsiding to 4 to 6 ft in the afternoon. wave detail: n
7 ft at 7 seconds, becoming nw 6 ft at 6 seconds and e 4 ft at
10 seconds. 
.mon night...w winds 15 to 20 kt with gusts up to 30 kt. seas
3 to 5 ft. wave detail: w 5 ft at 5 seconds and se 2 ft at
10 seconds. 
.tue and tue night...w winds 15 to 20 kt, becoming sw. gusts up
to 30 kt. seas 2 to 4 ft. 
.wed and wed night...sw winds 20 to 25 kt, becoming w 15 to
20 kt. gusts up to 30 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 130903
cwfbox
expires:202512132200;;498573

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am est sat dec 13 2025

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


anz254-132200-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
403 am est sat dec 13 2025

...small craft advisory in effect from 10 am est this morning
through late tonight...
...gale watch in effect from sunday evening through monday
afternoon...

.today...sw winds 10 to 15 kt, increasing to 15 to 20 kt this
afternoon. gusts up to 25 kt. seas 2 to 4 ft. wave detail: w 4 ft
at 6 seconds and e 1 foot at 11 seconds. a slight chance of rain
this afternoon. 
.tonight...w winds 10 to 15 kt with gusts up to 25 kt. seas 2 to
4 ft. wave detail: w 4 ft at 5 seconds and se 1 foot at
10 seconds. a chance of rain in the evening, then rain and snow
after midnight with vsby 1 nm or less. 
.sun...nw winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. gusts up to 25 kt. seas 2 to 4 ft. wave detail: nw
4 ft at 5 seconds and se 1 foot at 10 seconds. snow. vsby 1 nm or
less. 
.sun night...nw winds 25 to 30 kt with gusts up to 40 kt. seas
5 to 7 ft, building to 7 to 9 ft after midnight. wave detail: nw
6 ft at 5 seconds and se 2 ft at 9 seconds, becoming nw 8 ft at
7 seconds and se 4 ft at 10 seconds. a chance of snow showers.
vsby 1 nm or less. 
.mon...nw winds 25 to 30 kt, diminishing to 20 to 25 kt in the
afternoon. gusts up to 40 kt. seas 7 to 9 ft, subsiding to 5 to
7 ft in the afternoon. wave detail: nw 8 ft at 7 seconds and e
5 ft at 10 seconds, becoming nw 7 ft at 7 seconds and ne 5 ft at
8 seconds. light freezing spray in the morning. a chance of snow
showers in the morning. 
.mon night...w winds 15 to 20 kt with gusts up to 30 kt. seas
4 to 6 ft. wave detail: nw 6 ft at 6 seconds and e 4 ft at
10 seconds. 
.tue...w winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. 
.tue night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 4 ft. 
.wed...sw winds around 20 kt with gusts up to 30 kt. seas 4 to
6 ft. 
.wed night...w winds 15 to 20 kt with gusts up to 25 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 130903
cwfbox
expires:202512132200;;498574

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am est sat dec 13 2025

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


anz255-132200-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
403 am est sat dec 13 2025

...small craft advisory in effect from 10 am est this morning
through late tonight...
...gale watch in effect from sunday evening through monday
afternoon...

.today...sw winds 15 to 20 kt, increasing to 20 to 25 kt this
afternoon. seas 3 to 5 ft. wave detail: sw 5 ft at 6 seconds and
e 1 foot at 10 seconds. a slight chance of rain this afternoon. 
.tonight...w winds 15 to 20 kt, becoming nw 10 to 15 kt after
midnight. gusts up to 25 kt. seas 4 to 6 ft. wave detail: sw 6 ft
at 7 seconds. a chance of rain in the evening, then rain and snow
after midnight with vsby 1 nm or less. 
.sun...n winds 10 to 15 kt with gusts up to 20 kt, becoming nw
20 to 25 kt with gusts up to 30 kt in the afternoon. seas 2 to
4 ft. wave detail: nw 4 ft at 5 seconds. snow. vsby 1 nm or less.
.sun night...nw winds 25 to 30 kt, increasing to 30 to 35 kt
after midnight. gusts up to 45 kt. seas 4 to 6 ft, building to
6 to 9 ft after midnight. wave detail: nw 6 ft at 6 seconds and
se 2 ft at 13 seconds, becoming nw 8 ft at 7 seconds and se 3 ft
at 10 seconds. light freezing spray after midnight. a chance of
snow showers after midnight with vsby 1 to 3 nm. 
.mon...nw winds 25 to 30 kt, diminishing to 20 to 25 kt in the
afternoon. gusts up to 40 kt. seas 6 to 9 ft, subsiding to 4 to
6 ft in the afternoon. wave detail: nw 8 ft at 7 seconds and se
3 ft at 9 seconds, becoming w 6 ft at 7 seconds and e 2 ft at
10 seconds. light freezing spray in the morning. 
.mon night...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 2 ft at
10 seconds. 
.tue...nw winds 20 to 25 kt with gusts up to 30 kt. seas 4 to
6 ft. 
.tue night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 4 ft. 
.wed and wed night...w winds 20 to 25 kt with gusts up to 30 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.

$$