fzus51 kbox 291704
cwfbox
expires:202607300600;;285320

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed jul 29 2026

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


anz231-300600-
cape cod bay-
104 pm edt wed jul 29 2026

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

.this afternoon...e winds 15 to 20 kt with gusts up to 30 kt.
seas around 3 ft. wave detail: se 2 ft at 4 seconds and se 1 foot
at 8 seconds. patchy fog. showers with a slight chance of tstms.
vsby 1 to 3 nm. 
.tonight...e 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: se 3 ft at 4 seconds and s 3 ft at
7 seconds. patchy fog. showers likely with a chance of tstms in
the evening, then a chance of showers after midnight. vsby 1 to
3 nm, decreasing to 1 nm or less after midnight. 
.thu...ne winds 5 to 10 kt. seas around 2 ft. wave detail: se
2 ft at 7 seconds and e 2 ft at 10 seconds. patchy fog. a chance
of showers. vsby 1 nm or less in the morning. 
.thu night...n winds around 10 kt. seas around 2 ft. wave detail:
n 2 ft at 3 seconds and n 2 ft at 4 seconds. patchy fog. a chance
of showers in the evening. 
.fri...n winds 5 to 10 kt. seas around 2 ft. wave detail: n 2 ft
at 5 seconds and se 1 foot at 9 seconds. 
.fri night...sw winds around 5 kt. seas around 2 ft. wave detail:
n 2 ft at 5 seconds and s 2 ft at 9 seconds. 
.sat through sun...s winds 5 to 10 kt with gusts up to 20 kt.
seas around 2 ft. 
.sun night...s winds 5 to 10 kt. seas around 2 ft. a chance of
showers.  

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 291704
cwfbox
expires:202607300600;;285324

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed jul 29 2026

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


anz232-300600-
nantucket sound-
104 pm edt wed jul 29 2026

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

.this afternoon...se winds 20 to 25 kt with gusts up to 30 kt.
seas 3 to 4 ft. wave detail: s 3 ft at 6 seconds and e 1 foot at
8 seconds. patchy fog. showers with a slight chance of tstms.
vsby 1 to 3 nm. 
.tonight...se winds 15 to 20 kt with gusts up to 25 kt,
diminishing to 5 to 10 kt after midnight. seas 2 to 4 ft. wave
detail: s 3 ft at 7 seconds and se 2 ft at 11 seconds. patchy
fog. a chance of showers in the evening. vsby 1 to 3 nm,
decreasing to 1 nm or less after midnight. 
.thu...s winds 5 to 10 kt. seas 2 to 3 ft. wave detail: e 2 ft at
5 seconds and s 2 ft at 8 seconds. a chance of showers. patchy
fog in the morning with vsby 1 nm or less. 
.thu night...n winds 10 to 15 kt. seas 2 to 3 ft. wave detail: n
2 ft at 4 seconds and s 1 foot at 8 seconds. patchy fog. vsby
1 to 3 nm. 
.fri...n winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. seas 2 to 3 ft. wave detail: w 2 ft at 4 seconds and
ne 2 ft at 5 seconds. 
.fri night...w winds 5 to 10 kt. seas 2 to 3 ft. wave detail: w
1 foot at 4 seconds and ne 1 foot at 5 seconds. 
.sat through sun...s winds 5 to 10 kt. seas around 2 ft. 
.sun night...s winds around 10 kt. seas around 2 ft. a chance of
showers.  

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 291704
cwfbox
expires:202607300600;;285325

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed jul 29 2026

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


anz233-300600-
vineyard sound-
104 pm edt wed jul 29 2026

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

.this afternoon...se winds 20 to 25 kt with gusts up to 30 kt.
seas 3 to 4 ft. wave detail: s 4 ft at 6 seconds and e 2 ft at
10 seconds. patchy fog. showers likely with a chance of tstms.
vsby 1 to 3 nm. 
.tonight...se winds 15 to 20 kt with gusts up to 25 kt,
diminishing to 5 to 10 kt after midnight. seas 2 to 4 ft. wave
detail: se 3 ft at 4 seconds and sw 3 ft at 7 seconds. patchy
fog. a chance of showers. a chance of tstms in the evening. vsby
1 to 3 nm. 
.thu...s winds 5 to 10 kt. seas 2 to 3 ft. wave detail: sw 3 ft
at 8 seconds and sw 2 ft at 4 seconds. patchy fog. a chance of
showers. vsby 1 to 3 nm in the morning. 
.thu night...n winds 10 to 15 kt. seas 2 to 3 ft. wave detail: n
2 ft at 4 seconds and sw 2 ft at 8 seconds. patchy fog. vsby 1 to
3 nm in the evening. 
.fri...nw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: n 2 ft
at 4 seconds and sw 2 ft at 9 seconds. 
.fri night...sw winds 5 to 10 kt. seas around 2 ft. wave detail:
sw 2 ft at 9 seconds and se 2 ft at 9 seconds. 
.sat through sun...s winds 5 to 10 kt. seas around 2 ft. 
.sun night...s winds around 10 kt. seas around 2 ft. a chance of
showers.  

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 291704
cwfbox
expires:202607300600;;285326

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed jul 29 2026

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


anz234-300600-
buzzards bay-
104 pm edt wed jul 29 2026

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

.this afternoon...se winds 20 to 25 kt with gusts up to 30 kt.
seas around 3 ft. wave detail: s 2 ft at 5 seconds and e 2 ft at
11 seconds. patchy fog. showers likely with a chance of tstms.
vsby 1 to 3 nm. 
.tonight...se winds 15 to 20 kt with gusts up to 25 kt,
diminishing to 5 to 10 kt after midnight. seas 2 to 3 ft. wave
detail: se 2 ft at 3 seconds and se 2 ft at 10 seconds. patchy
fog. a chance of showers. a chance of tstms in the evening. vsby
1 to 3 nm, decreasing to 1 nm or less after midnight. 
.thu...ne winds 5 to 10 kt. seas around 2 ft. wave detail: se
2 ft at 9 seconds and e 1 foot at 2 seconds. patchy fog. a chance
of showers. vsby 1 to 3 nm in the morning. 
.thu night...n winds 10 to 15 kt. seas around 2 ft. wave detail:
se 2 ft at 9 seconds and n 1 foot at 4 seconds. patchy fog. 
.fri...n winds 5 to 10 kt. seas around 2 ft. wave detail: e 2 ft
at 11 seconds and n 1 foot at 4 seconds. 
.fri night...sw winds 5 to 10 kt. seas around 2 ft. wave detail:
ne 1 foot at 3 seconds and sw 1 foot at 4 seconds. 
.sat through sun...s winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. 
.sun night...s winds 5 to 10 kt. seas around 2 ft. a chance of
showers.  

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 291704
cwfbox
expires:202607300600;;285327

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed jul 29 2026

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


anz235-300600-
rhode island sound-
104 pm edt wed jul 29 2026

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

.this afternoon...se winds 20 to 25 kt with gusts up to 30 kt.
seas 4 to 5 ft. wave detail: s 5 ft at 6 seconds and e 2 ft at
10 seconds. patchy fog. showers likely with a chance of tstms.
vsby 1 to 3 nm. 
.tonight...se winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. seas 3 to 5 ft. wave
detail: se 5 ft at 6 seconds and e 3 ft at 3 seconds. patchy fog.
a chance of showers. a chance of tstms in the evening. vsby 1 to
3 nm. 
.thu...e winds 5 to 10 kt, becoming ne in the afternoon. seas
3 to 4 ft. wave detail: s 4 ft at 8 seconds and e 3 ft at
9 seconds. patchy fog. a chance of showers. vsby 1 to 3 nm in the
morning. 
.thu night...n winds 10 to 15 kt. seas 3 to 4 ft. wave detail: s
4 ft at 8 seconds and se 4 ft at 8 seconds. patchy fog. 
.fri...n winds 5 to 10 kt, becoming w in the afternoon. seas 3 to
4 ft. wave detail: s 4 ft at 9 seconds and se 4 ft at 10 seconds.
.fri night...sw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se
3 ft at 9 seconds and s 3 ft at 9 seconds. 
.sat through sun...s winds 5 to 10 kt. seas 2 to 3 ft. 
.sun night...s winds around 10 kt. seas 2 to 3 ft. a chance of
showers.  

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 291704
cwfbox
expires:202607300600;;285330

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed jul 29 2026

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


anz236-300600-
narragansett bay-
104 pm edt wed jul 29 2026

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

.this afternoon...se winds 15 to 20 kt with gusts up to 30 kt.
waves 3 to 4 ft. patchy fog. showers likely with a chance of
tstms. vsby 1 to 3 nm. 
.tonight...e winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. waves 2 to 3 ft. patchy
fog. a chance of showers. vsby 1 to 3 nm. 
.thu...n winds 5 to 10 kt. waves 2 to 3 ft. patchy fog. showers
likely. vsby 1 to 3 nm in the morning. 
.thu night...n winds 5 to 10 kt. waves 2 to 3 ft. patchy fog in
the evening. 
.fri...nw winds 5 to 10 kt. waves 2 to 3 ft. a chance of
sprinkles in the afternoon. 
.fri night...sw winds 5 to 10 kt. waves around 2 ft. a chance of
sprinkles in the evening. 
.sat through sun...s winds 5 to 10 kt. waves around 2 ft. 
.sun night...s winds 5 to 10 kt. waves around 2 ft. a chance of
showers.  

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 291704
cwfbox
expires:202607300600;;285318

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed jul 29 2026

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


anz250-300600-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
104 pm edt wed jul 29 2026

...small craft advisory in effect through thursday morning...

.this afternoon...e winds 15 to 20 kt with gusts up to 30 kt.
seas 3 to 4 ft. wave detail: se 4 ft at 5 seconds and e 1 foot at
8 seconds. patchy fog. showers likely with a slight chance of
tstms. vsby 1 to 3 nm. 
.tonight...e winds 15 to 20 kt with gusts up to 30 kt. seas 3 to
5 ft. wave detail: se 4 ft at 6 seconds and s 1 foot at
4 seconds. patchy fog. showers likely. vsby 1 nm or less. 
.thu...ne winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
5 ft. wave detail: e 4 ft at 7 seconds and se 3 ft at 11 seconds.
patchy fog. a chance of showers. vsby 1 nm or less in the
morning. 
.thu night...n winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas 3 to 5 ft. wave detail: ne 4 ft at 6 seconds and se
3 ft at 9 seconds. patchy fog. a chance of showers in the
evening. 
.fri...n winds 5 to 10 kt. seas 3 to 4 ft. wave detail: ne 3 ft
at 6 seconds and s 3 ft at 9 seconds. 
.fri night...sw winds around 5 kt. seas 2 to 4 ft. wave detail:
se 3 ft at 9 seconds and ne 2 ft at 5 seconds. 
.sat through sun...s winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. 
.sun night...s winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft. a chance of showers.  

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 291704
cwfbox
expires:202607300600;;285321

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed jul 29 2026

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


anz254-300600-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
104 pm edt wed jul 29 2026

...small craft advisory in effect through thursday morning...

.this afternoon...se winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 5 ft. wave detail: se 4 ft at 5 seconds and se 3 ft at
8 seconds. patchy fog. showers likely with a slight chance of
tstms. vsby 1 to 3 nm. 
.tonight...e winds 15 to 20 kt with gusts up to 30 kt, becoming
se 10 to 15 kt with gusts up to 20 kt after midnight. seas 4 to
5 ft. wave detail: se 4 ft at 6 seconds and se 1 foot at
9 seconds. patchy fog. showers likely with a chance of tstms in
the evening, then a chance of showers after midnight. vsby 1 to
3 nm, decreasing to 1 nm or less after midnight. 
.thu...s winds 5 to 10 kt. seas 3 to 5 ft. wave detail: se 5 ft
at 9 seconds and e 3 ft at 6 seconds. patchy fog in the morning
with vsby 1 nm or less. 
.thu night...ne winds 5 to 10 kt, becoming n after midnight. seas
3 to 5 ft. wave detail: se 4 ft at 9 seconds and ne 3 ft at
6 seconds. patchy fog. a chance of showers in the evening. 
.fri...n winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. seas 3 to 5 ft. wave detail: s 4 ft at 10 seconds and
ne 3 ft at 6 seconds. 
.fri night...w winds 5 to 10 kt. seas 2 to 4 ft. wave detail: se
4 ft at 10 seconds and ne 2 ft at 5 seconds. 
.sat through sun...s winds 5 to 10 kt. seas 2 to 3 ft. 
.sun night...s winds around 10 kt. seas 2 to 3 ft. a chance of
showers.  

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 291704
cwfbox
expires:202607300600;;285322

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed jul 29 2026

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


anz255-300600-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
104 pm edt wed jul 29 2026

...small craft advisory in effect through thursday morning...

.this afternoon...se winds around 20 kt with gusts up to 25 kt.
seas 4 to 5 ft. wave detail: se 5 ft at 6 seconds and e 1 foot at
9 seconds. patchy fog. showers with a chance of tstms. vsby 1 to
3 nm. 
.tonight...se winds 15 to 20 kt with gusts up to 25 kt, becoming
s 5 to 10 kt after midnight. seas 4 to 5 ft. wave detail: s 5 ft
at 5 seconds and se 2 ft at 11 seconds. patchy fog. a chance of
showers and tstms in the evening. vsby 1 nm or less. 
.thu...s winds 5 to 10 kt. seas 3 to 5 ft. wave detail: s 5 ft at
8 seconds and sw 3 ft at 4 seconds. patchy fog in the morning
with vsby 1 nm or less. 
.thu night...nw winds 10 to 15 kt. seas 3 to 5 ft. wave detail: s
4 ft at 8 seconds and se 4 ft at 10 seconds. patchy fog. vsby
1 to 3 nm. 
.fri...n winds 10 to 15 kt, becoming nw 5 to 10 kt in the
afternoon. seas 3 to 5 ft. wave detail: s 4 ft at 10 seconds and
nw 2 ft at 4 seconds. 
.fri night...w winds 5 to 10 kt. seas 3 to 4 ft. wave detail: s
4 ft at 9 seconds and nw 1 foot at 3 seconds. 
.sat through sun...s winds 5 to 10 kt. seas 2 to 4 ft. 
.sun night...s winds around 10 kt. seas 2 to 3 ft. a chance of
showers.  

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.

$$