fzus51 kbox 120506
cwfbox
expires:202608121800;;037106

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
105 am edt wed aug 12 2026

coastal waters from the merrimack river ma to watch hill ri out
to 60 nm


anz231-121800-
cape cod bay-
105 am edt wed aug 12 2026

.rest of tonight...nw winds around 5 kt. seas 1 foot or less.
wave detail: n 1 foot at 3 seconds and s 1 foot at 5 seconds. 
.wed...n winds around 5 kt, becoming e in the afternoon. seas
1 foot or less. wave detail: n 1 foot at 2 seconds and nw 1 foot
at 3 seconds. 
.wed night...s winds 5 to 10 kt, becoming sw after midnight. seas
1 foot or less. wave detail: s 1 foot at 2 seconds and n 1 foot
at 3 seconds. 
.thu...sw winds around 5 kt. seas 1 foot or less, then around
2 ft in the afternoon. wave detail: sw 1 foot at 2 seconds and ne
1 foot at 3 seconds, becoming sw 1 foot at 2 seconds and e 1 foot
at 3 seconds. a chance of showers in the afternoon. 
.thu night...sw winds 5 to 10 kt. seas around 2 ft in the
evening, then 1 foot or less. wave detail: sw 1 foot at 2 seconds
and e 1 foot at 3 seconds, becoming e 1 foot at 2 seconds and sw
1 foot at 3 seconds. 
.fri and fri night...nw winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: nw 3 ft at 4 seconds and se 1 foot
at 3 seconds. 
.sat through sun...sw winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. 
.sun night...sw winds around 10 kt with gusts up to 20 kt. seas
around 2 ft. a chance of showers.  

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 120506
cwfbox
expires:202608121800;;037110

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
105 am edt wed aug 12 2026

coastal waters from the merrimack river ma to watch hill ri out
to 60 nm


anz232-121800-
nantucket sound-
105 am edt wed aug 12 2026

.rest of tonight...nw winds 5 to 10 kt. seas around 2 ft. wave
detail: n 1 foot at 2 seconds and w 1 foot at 4 seconds. 
.wed...n winds around 5 kt, becoming e in the afternoon. seas
1 foot or less. wave detail: nw 1 foot at 2 seconds and sw 1 foot
at 5 seconds. 
.wed night...s winds 5 to 10 kt, becoming sw after midnight. seas
1 foot or less. wave detail: ne 1 foot at 2 seconds and sw 1 foot
at 4 seconds. 
.thu...sw winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. seas 1 foot or less, then around 2 ft in the
afternoon. wave detail: sw 1 foot at 3 seconds and e 1 foot at
8 seconds, becoming sw 2 ft at 3 seconds and se 1 foot at
3 seconds. a chance of showers in the afternoon. 
.thu night...sw winds 10 to 15 kt. seas around 2 ft. wave detail:
sw 2 ft at 4 seconds and e 1 foot at 4 seconds. 
.fri...nw winds 5 to 10 kt. seas around 2 ft. wave detail: n
1 foot at 2 seconds and sw 1 foot at 4 seconds. a chance of
showers in the morning. 
.fri night...nw winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas 2 to 3 ft. 
.sat through sun...sw winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. 
.sun night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 3 ft. a chance of showers.  

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 120506
cwfbox
expires:202608121800;;037111

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
105 am edt wed aug 12 2026

coastal waters from the merrimack river ma to watch hill ri out
to 60 nm


anz233-121800-
vineyard sound-
105 am edt wed aug 12 2026

.rest of tonight...nw winds 5 to 10 kt. seas around 2 ft. wave
detail: w 2 ft at 5 seconds and se 1 foot at 9 seconds. a slight
chance of showers. 
.wed...n winds around 5 kt, becoming s in the afternoon. seas
1 foot or less. wave detail: w 1 foot at 5 seconds and se 1 foot
at 9 seconds. 
.wed night...sw winds 5 to 10 kt. seas 1 foot or less. wave
detail: e 1 foot at 2 seconds and sw 1 foot at 4 seconds. 
.thu...sw winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. seas around 2 ft. wave detail: s 2 ft at 4 seconds and
se 1 foot at 8 seconds. patchy fog in the morning. a chance of
showers in the afternoon. vsby 1 to 3 nm in the morning. 
.thu night and fri...w winds 10 to 15 kt. seas around 2 ft. wave
detail: sw 2 ft at 5 seconds and se 1 foot at 6 seconds. 
.fri night...nw winds 10 to 15 kt. seas around 2 ft. wave detail:
n 2 ft at 4 seconds and w 2 ft at 4 seconds. 
.sat through sun...sw winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. 
.sun night...sw winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft. a chance of showers.  

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 120506
cwfbox
expires:202608121800;;037112

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
105 am edt wed aug 12 2026

coastal waters from the merrimack river ma to watch hill ri out
to 60 nm


anz234-121800-
buzzards bay-
105 am edt wed aug 12 2026

.rest of tonight...nw winds around 5 kt. seas 1 foot or less.
wave detail: sw 1 foot at 5 seconds and se 1 foot at 9 seconds. 
.wed...n winds around 5 kt, becoming s in the afternoon. seas
1 foot or less. wave detail: n 1 foot at 2 seconds and w 1 foot
at 5 seconds. 
.wed night...sw winds 5 to 10 kt. seas 1 foot or less. wave
detail: e 1 foot at 3 seconds and sw 1 foot at 4 seconds. 
.thu...w winds 5 to 10 kt, becoming sw 10 to 15 kt with gusts up
to 20 kt in the afternoon. seas 1 foot or less, then 2 to 3 ft in
the afternoon. wave detail: sw 1 foot at 4 seconds and se 1 foot
at 8 seconds, becoming s 2 ft at 4 seconds and se 1 foot at
8 seconds. patchy fog in the morning. a chance of showers in the
afternoon. vsby 1 nm or less in the morning. 
.thu night and fri...w winds 5 to 10 kt. seas around 2 ft. wave
detail: sw 2 ft at 4 seconds and se 1 foot at 5 seconds. 
.fri night...nw winds 10 to 15 kt. seas around 2 ft. wave detail:
n 2 ft at 4 seconds and sw 2 ft at 6 seconds. 
.sat through sun...sw winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. 
.sun night...sw winds 15 to 20 kt. seas 2 to 3 ft. a chance of
showers.  

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 120506
cwfbox
expires:202608121800;;037113

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
105 am edt wed aug 12 2026

coastal waters from the merrimack river ma to watch hill ri out
to 60 nm


anz235-121800-
rhode island sound-
105 am edt wed aug 12 2026

.rest of tonight...nw winds 5 to 10 kt. seas around 2 ft. wave
detail: s 2 ft at 5 seconds and nw 1 foot at 4 seconds. a slight
chance of showers. 
.wed...n winds around 5 kt, becoming s in the afternoon. seas
around 2 ft. wave detail: s 2 ft at 5 seconds and nw 1 foot at
4 seconds. 
.wed night...sw winds 5 to 10 kt. seas around 2 ft. wave detail:
sw 2 ft at 4 seconds and ne 1 foot at 2 seconds. 
.thu...sw winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. seas 2 to 3 ft. wave detail: s 3 ft at 4 seconds and
se 1 foot at 8 seconds. patchy fog in the morning with vsby 1 nm
or less. 
.thu night and fri...w winds 10 to 15 kt. seas 2 to 3 ft. wave
detail: sw 3 ft at 4 seconds and se 1 foot at 6 seconds. 
.fri night...nw winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft. wave detail: n 3 ft at 4 seconds and s 2 ft at
6 seconds. 
.sat through sun...sw winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. 
.sun night...sw winds 15 to 20 kt. seas 2 to 3 ft. a chance of
showers.  

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 120506
cwfbox
expires:202608121800;;037116

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
105 am edt wed aug 12 2026

coastal waters from the merrimack river ma to watch hill ri out
to 60 nm


anz236-121800-
narragansett bay-
105 am edt wed aug 12 2026

.rest of tonight...nw winds around 5 kt. waves 1 foot or less. a
slight chance of showers. 
.wed...n winds around 5 kt, becoming s in the afternoon. waves
1 foot or less. 
.wed night...s winds 5 to 10 kt, becoming w after midnight. waves
1 foot or less. 
.thu...sw winds 5 to 10 kt. waves 1 foot or less, then around
2 ft in the afternoon. 
.thu night through fri night...n winds 5 to 10 kt. waves around
2 ft. 
.sat through sun...sw winds 10 to 15 kt with gusts up to 20 kt.
waves around 2 ft. 
.sun night...sw winds 10 to 15 kt with gusts up to 20 kt. waves
around 2 ft. a chance of showers.  

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 120506
cwfbox
expires:202608121800;;037104

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
105 am edt wed aug 12 2026

coastal waters from the merrimack river ma to watch hill ri out
to 60 nm


anz250-121800-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
105 am edt wed aug 12 2026

.rest of tonight...nw winds around 5 kt. seas 1 foot or less.
wave detail: n 1 foot at 3 seconds and s 1 foot at 6 seconds. 
.wed...nw winds around 5 kt, becoming se in the afternoon. seas
1 foot or less. wave detail: nw 1 foot at 3 seconds and s 1 foot
at 6 seconds. 
.wed night...s winds 5 to 10 kt, becoming sw after midnight. seas
around 2 ft. wave detail: sw 2 ft at 4 seconds and n 1 foot at
3 seconds. 
.thu...sw winds around 5 kt. seas around 2 ft. wave detail: e
1 foot at 2 seconds and sw 1 foot at 3 seconds. a chance of
showers in the afternoon. 
.thu night through fri night...nw winds 10 to 15 kt with gusts up
to 20 kt. seas 2 to 3 ft. wave detail: n 3 ft at 5 seconds and s
1 foot at 3 seconds. 
.sat...n winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
4 ft. wave detail: n 3 ft at 5 seconds and s 1 foot at 7 seconds.
.sat night and sun...sw winds 5 to 10 kt. seas around 2 ft. 
.sun night...s winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft. a chance of showers.  

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 120506
cwfbox
expires:202608121800;;037107

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
105 am edt wed aug 12 2026

coastal waters from the merrimack river ma to watch hill ri out
to 60 nm


anz254-121800-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
105 am edt wed aug 12 2026

.rest of tonight...nw winds 5 to 10 kt. seas around 2 ft. wave
detail: s 2 ft at 6 seconds and n 1 foot at 3 seconds. 
.wed...n winds around 5 kt, becoming ne in the afternoon. seas
around 2 ft. wave detail: n 1 foot at 3 seconds and s 1 foot at
6 seconds. 
.wed night...s winds 5 to 10 kt, becoming sw after midnight. seas
around 2 ft. wave detail: nw 1 foot at 3 seconds and n 1 foot at
3 seconds. patchy fog after midnight with vsby 1 nm or less. 
.thu...sw winds 5 to 10 kt. seas around 2 ft. wave detail: s 2 ft
at 5 seconds and nw 1 foot at 3 seconds. patchy fog in the
morning. a chance of showers in the afternoon. vsby 1 nm or less
in the morning. 
.thu night...sw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: sw
2 ft at 4 seconds and e 1 foot at 3 seconds. a chance of showers
after midnight. 
.fri...nw winds 10 to 15 kt. gusts up to 20 kt in the morning.
seas 2 to 3 ft. wave detail: nw 2 ft at 3 seconds and s 2 ft at
6 seconds. a chance of showers in the morning. 
.fri night...nw winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 4 ft. 
.sat and sat night...n winds 10 to 15 kt with gusts up to 20 kt,
becoming w 5 to 10 kt. seas 2 to 4 ft. 
.sun...sw winds 5 to 10 kt. seas around 2 ft. 
.sun night...s winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft. a chance of showers.  

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 120506
cwfbox
expires:202608121800;;037108

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
105 am edt wed aug 12 2026

coastal waters from the merrimack river ma to watch hill ri out
to 60 nm


anz255-121800-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
105 am edt wed aug 12 2026

.rest of tonight...nw winds 5 to 10 kt. seas around 2 ft. wave
detail: w 2 ft at 5 seconds and se 1 foot at 8 seconds. a slight
chance of showers. 
.wed...nw winds around 5 kt, becoming e in the afternoon. seas
around 2 ft. wave detail: sw 2 ft at 5 seconds and n 1 foot at
2 seconds. 
.wed night...sw winds 5 to 10 kt. seas around 2 ft. wave detail:
s 2 ft at 7 seconds and n 1 foot at 2 seconds. patchy fog after
midnight with vsby 1 nm or less. 
.thu...sw winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. seas 2 to 3 ft. wave detail: sw 2 ft at 6 seconds and
se 1 foot at 3 seconds. patchy fog in the morning with vsby 1 nm
or less. 
.thu night...sw winds 10 to 15 kt. seas 2 to 3 ft. wave detail:
sw 3 ft at 5 seconds and e 1 foot at 6 seconds. a chance of
showers after midnight. 
.fri...nw winds 10 to 15 kt. seas 2 to 3 ft. wave detail: sw 3 ft
at 5 seconds and n 1 foot at 3 seconds. a chance of showers in
the morning. 
.fri night...nw winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas 2 to 4 ft. 
.sat through sun...sw winds 10 to 15 kt. seas 2 to 4 ft. 
.sun night...sw winds 15 to 20 kt. seas 2 to 3 ft. a chance of
showers.  

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.

$$