fzus51 kbox 301404
cwfbox
expires:202607310300;;335846

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu jul 30 2026

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


anz231-310300-
cape cod bay-
1004 am edt thu jul 30 2026

.this afternoon...n winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. wave detail: n 2 ft at 3 seconds and e 1 foot
at 10 seconds. patchy fog. a chance of showers with a slight
chance of tstms. vsby 1 nm or less. 
.tonight...n winds 5 to 10 kt. seas around 2 ft. wave detail: n
2 ft at 4 seconds and e 1 foot at 11 seconds. patchy fog. a
chance of showers in the evening. vsby 1 nm or less, increasing
to 1 to 3 nm after midnight. 
.fri...n winds 5 to 10 kt, becoming ne in the afternoon. seas
around 2 ft. wave detail: n 2 ft at 5 seconds and se 1 foot at
10 seconds. 
.fri night...sw winds 5 to 10 kt. seas around 2 ft. wave detail:
sw 1 foot at 3 seconds and n 1 foot at 5 seconds. 
.sat and sat night...s winds 5 to 10 kt. seas around 2 ft. wave
detail: sw 1 foot at 2 seconds and ne 1 foot at 4 seconds. 
.sun...s winds 5 to 10 kt with gusts up to 20 kt. seas around
2 ft. wave detail: se 2 ft at 8 seconds and s 1 foot at
2 seconds. 
.sun night...s winds 5 to 10 kt. seas around 2 ft. a chance of
showers. 
.mon...sw winds 5 to 10 kt. seas 1 foot or less. a chance of
showers. 
.mon night...w winds around 5 kt. seas 1 foot or less.  

winds and seas higher in and near tstms.

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 301404
cwfbox
expires:202607310300;;335850

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu jul 30 2026

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


anz232-310300-
nantucket sound-
1004 am edt thu jul 30 2026

.this afternoon...nw winds 10 to 15 kt. seas 2 to 3 ft. wave
detail: nw 2 ft at 3 seconds and s 2 ft at 8 seconds. patchy fog.
a chance of showers with a slight chance of tstms. vsby 1 to
3 nm. 
.tonight...n winds 10 to 15 kt. seas 2 to 3 ft. wave detail: nw
2 ft at 3 seconds and se 2 ft at 7 seconds. patchy fog. vsby 1 to
3 nm. 
.fri...nw winds 5 to 10 kt, becoming w in the afternoon. seas
2 to 3 ft. wave detail: nw 2 ft at 3 seconds and ne 1 foot at
6 seconds. 
.fri night...sw winds 5 to 10 kt. seas around 2 ft. wave detail:
sw 1 foot at 4 seconds and e 1 foot at 6 seconds. 
.sat and sat night...sw winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. wave detail: sw 2 ft at 3 seconds and e 1 foot
at 6 seconds. 
.sun...s winds 10 to 15 kt with gusts up to 20 kt. seas around
2 ft. wave detail: s 2 ft at 3 seconds and e 1 foot at 7 seconds.
.sun night and mon...sw winds 10 to 15 kt. seas 2 to 3 ft. a
chance of showers. 
.mon night...w winds 5 to 10 kt. seas 2 to 3 ft.  

winds and seas higher in and near tstms.

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 301404
cwfbox
expires:202607310300;;335851

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu jul 30 2026

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


anz233-310300-
vineyard sound-
1004 am edt thu jul 30 2026

.this afternoon...nw winds 10 to 15 kt. gusts up to 20 kt. seas
2 to 3 ft. wave detail: sw 3 ft at 8 seconds and n 2 ft at
4 seconds. patchy fog. a chance of tstms. a chance of showers,
then showers likely with vsby 1 to 3 nm. 
.tonight...n winds 10 to 15 kt, becoming nw 5 to 10 kt after
midnight. seas 2 to 3 ft. wave detail: sw 3 ft at 8 seconds and
nw 2 ft at 3 seconds. patchy fog in the evening. 
.fri...nw winds 5 to 10 kt, becoming w in the afternoon. seas
2 to 3 ft. wave detail: sw 2 ft at 9 seconds and nw 1 foot at
4 seconds. 
.fri night...sw winds 5 to 10 kt. seas around 2 ft. wave detail:
sw 2 ft at 8 seconds and sw 1 foot at 3 seconds. 
.sat and sat night...s winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. wave detail: sw 2 ft at 3 seconds and sw 2 ft
at 9 seconds. 
.sun...s winds 10 to 15 kt. seas around 2 ft. wave detail: sw
2 ft at 4 seconds and s 1 foot at 8 seconds. 
.sun night...sw winds around 10 kt. seas around 2 ft. a chance of
showers. 
.mon...sw winds around 10 kt. seas 2 to 4 ft. a chance of
showers. 
.mon night...w winds 5 to 10 kt. seas 2 to 4 ft.  

winds and seas higher in and near tstms.

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 301404
cwfbox
expires:202607310300;;335852

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu jul 30 2026

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


anz234-310300-
buzzards bay-
1004 am edt thu jul 30 2026

.this afternoon...n winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. wave detail: n 1 foot at 4 seconds and sw
1 foot at 8 seconds. patchy fog. showers likely with a chance of
tstms. vsby 1 to 3 nm. 
.tonight...n winds 10 to 15 kt, becoming nw 5 to 10 kt after
midnight. seas around 2 ft. wave detail: n 2 ft at 3 seconds and
sw 1 foot at 8 seconds. patchy fog in the evening with vsby 1 to
3 nm. 
.fri...nw winds 5 to 10 kt, becoming sw in the afternoon. seas
around 2 ft. wave detail: ne 1 foot at 2 seconds and w 1 foot at
4 seconds. 
.fri night...sw winds 5 to 10 kt. seas around 2 ft. wave detail:
sw 1 foot at 3 seconds and e 1 foot at 7 seconds. 
.sat and sat night...s winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: sw 2 ft at 4 seconds and e 1 foot at
6 seconds. 
.sun...s winds 10 to 15 kt with gusts up to 20 kt. seas around
2 ft. wave detail: sw 2 ft at 4 seconds and s 1 foot at
7 seconds. 
.sun night...sw winds 10 to 15 kt with gusts up to 20 kt. seas
around 2 ft. a chance of showers. 
.mon...sw winds 5 to 10 kt. seas 2 to 3 ft. a chance of showers. 
.mon night...w winds 5 to 10 kt. seas 2 to 3 ft.  

winds and seas higher in and near tstms.

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 301404
cwfbox
expires:202607310300;;335853

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu jul 30 2026

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


anz235-310300-
rhode island sound-
1004 am edt thu jul 30 2026

.this afternoon...n winds 10 to 15 kt. gusts up to 20 kt. seas
3 to 4 ft. wave detail: s 4 ft at 8 seconds and n 2 ft at
3 seconds. patchy fog. showers likely. a chance of tstms, then a
slight chance of tstms with vsby 1 to 3 nm. 
.tonight...n winds 10 to 15 kt, becoming nw 5 to 10 kt after
midnight. seas 3 to 4 ft. wave detail: s 4 ft at 8 seconds and n
2 ft at 3 seconds. 
.fri...nw winds 5 to 10 kt, becoming sw in the afternoon. seas
2 to 4 ft. wave detail: s 3 ft at 9 seconds and nw 1 foot at
4 seconds. patchy fog in the morning with vsby 1 nm or less. 
.fri night...sw winds around 10 kt. seas 2 to 3 ft. wave detail:
se 3 ft at 7 seconds and sw 2 ft at 3 seconds. 
.sat and sat night...s winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: s 3 ft at 9 seconds and sw 2 ft at
4 seconds. 
.sun...s winds 10 to 15 kt. seas 2 to 3 ft. wave detail: s 3 ft
at 8 seconds and sw 2 ft at 4 seconds. 
.sun night...sw winds 10 to 15 kt. seas 2 to 3 ft. a chance of
showers. 
.mon...sw winds around 10 kt. seas 3 to 5 ft. a chance of
showers. 
.mon night...w winds 5 to 10 kt. seas 4 to 6 ft.  

winds and seas higher in and near tstms.

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 301404
cwfbox
expires:202607310300;;335856

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu jul 30 2026

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


anz236-310300-
narragansett bay-
1004 am edt thu jul 30 2026

.this afternoon...n winds 10 to 15 kt. gusts up to 20 kt. waves
2 to 3 ft. patchy fog. showers likely. a chance of tstms, then a
slight chance of tstms with vsby 1 to 3 nm. 
.tonight...n winds 5 to 10 kt. waves 2 to 3 ft. 
.fri...nw winds around 5 kt, becoming sw in the afternoon. waves
around 2 ft. 
.fri night...sw winds 5 to 10 kt. waves around 2 ft. 
.sat and sat night...s winds 10 to 15 kt with gusts up to 20 kt.
waves around 2 ft. 
.sun...s winds 10 to 15 kt. waves around 2 ft. 
.sun night...sw winds 5 to 10 kt. waves around 2 ft. a chance of
showers. 
.mon...sw winds 5 to 10 kt. waves 2 to 3 ft. a chance of showers.
.mon night...nw winds 5 to 10 kt. waves 2 to 3 ft. 

winds and waves higher in and near tstms.

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 301404
cwfbox
expires:202607310300;;335844

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu jul 30 2026

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


anz250-310300-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
1004 am edt thu jul 30 2026

...small craft advisory in effect until 8 pm edt this evening...

.this afternoon...ne winds 10 to 15 kt with gusts up to 20 kt.
seas 3 to 4 ft. wave detail: ne 4 ft at 6 seconds and se 3 ft at
9 seconds. patchy fog. a slight chance of tstms. showers likely,
then a chance of showers. vsby 1 nm or less. 
.tonight...n winds 5 to 10 kt. seas 3 to 4 ft. wave detail: n
3 ft at 5 seconds and se 3 ft at 9 seconds. patchy fog. a chance
of showers in the evening. vsby 1 nm or less, increasing to 1 to
3 nm after midnight. 
.fri...n winds 5 to 10 kt, becoming sw in the afternoon. seas
2 to 4 ft. wave detail: ne 3 ft at 5 seconds and se 3 ft at
9 seconds. 
.fri night...sw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: ne
2 ft at 6 seconds and se 2 ft at 9 seconds. 
.sat and sat night...s winds 5 to 10 kt with gusts up to 20 kt.
seas around 2 ft. wave detail: s 2 ft at 4 seconds and se 2 ft at
9 seconds. 
.sun...s winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: s 2 ft at 4 seconds and se 2 ft at 8 seconds. 
.sun night and mon...s winds 10 to 15 kt with gusts up to 20 kt,
becoming sw 5 to 10 kt. seas 2 to 3 ft. a chance of showers. 
.mon night...w winds 5 to 10 kt. seas 2 to 3 ft.  

winds and seas higher in and near tstms.

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 301404
cwfbox
expires:202607310300;;335847

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu jul 30 2026

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


anz254-310300-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
1004 am edt thu jul 30 2026

...small craft advisory in effect until 2 pm edt this afternoon...

.this afternoon...sw winds 5 to 10 kt, becoming nw. seas 3 to
5 ft. wave detail: e 4 ft at 7 seconds and w 1 foot at 3 seconds.
patchy fog. a chance of showers with a slight chance of tstms.
vsby 1 nm or less. 
.tonight...nw winds around 10 kt. seas 3 to 4 ft. wave detail: e
4 ft at 7 seconds and nw 1 foot at 3 seconds. patchy fog. vsby
1 nm or less, increasing to 1 to 3 nm after midnight. 
.fri...nw winds 5 to 10 kt. seas 3 to 4 ft. wave detail: se 4 ft
at 9 seconds and ne 2 ft at 6 seconds. 
.fri night...sw winds 5 to 10 kt. seas 2 to 4 ft. wave detail: se
3 ft at 9 seconds and ne 2 ft at 6 seconds. 
.sat and sat night...s winds 5 to 10 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: se 3 ft at 9 seconds and sw 2 ft at
3 seconds. 
.sun...s winds around 10 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: s 2 ft at 3 seconds and se 2 ft at 8 seconds. 
.sun night...s winds around 10 kt. seas 2 to 3 ft. a chance of
showers. 
.mon...sw winds 5 to 10 kt. seas 3 to 5 ft. a chance of showers. 
.mon night...w winds 5 to 10 kt. seas 3 to 5 ft.  

winds and seas higher in and near tstms.

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 301404
cwfbox
expires:202607310300;;335848

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu jul 30 2026

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


anz255-310300-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
1004 am edt thu jul 30 2026

...small craft advisory in effect until 2 pm edt this afternoon...

.this afternoon...w winds 5 to 10 kt, becoming nw 10 to 15 kt.
seas 3 to 5 ft. wave detail: s 4 ft at 8 seconds and nw 2 ft at
3 seconds. patchy fog. a chance of showers with a slight chance
of tstms. vsby 1 to 3 nm. 
.tonight...nw winds 10 to 15 kt. seas 3 to 5 ft. wave detail: s
4 ft at 8 seconds and e 2 ft at 6 seconds. patchy fog. vsby 1 to
3 nm. 
.fri...nw winds 5 to 10 kt, becoming w in the afternoon. seas
3 to 5 ft. wave detail: s 4 ft at 9 seconds and e 2 ft at
6 seconds. patchy fog in the morning with vsby 1 to 3 nm. 
.fri night...sw winds 5 to 10 kt. seas 3 to 4 ft. wave detail: s
3 ft at 8 seconds and w 2 ft at 4 seconds. 
.sat and sat night...s winds 5 to 10 kt. seas 3 to 4 ft. wave
detail: s 3 ft at 9 seconds and sw 2 ft at 3 seconds. 
.sun...s winds around 10 kt. seas around 3 ft. wave detail: se
3 ft at 7 seconds and sw 2 ft at 4 seconds. 
.sun night...s winds around 10 kt. seas 2 to 3 ft. a chance of
showers. 
.mon...sw winds 10 to 15 kt. seas 3 to 5 ft. a chance of showers.
.mon night...w winds 5 to 10 kt. seas 4 to 6 ft.  

winds and seas higher in and near tstms.

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.

$$