fzus51 kbox 031403
cwfbox
expires:202608040300;;555500

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt mon aug 3 2026

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


anz231-040300-
cape cod bay-
1003 am edt mon aug 3 2026

...small craft advisory in effect until 5 pm edt this afternoon...

.this afternoon...s winds 20 to 25 kt with gusts up to 35 kt.
seas 3 to 5 ft. wave detail: s 3 ft at 4 seconds and e 1 foot at
8 seconds. patchy fog. a slight chance of showers with isolated
tstms. a chance of showers. 
.tonight...sw winds 15 to 20 kt, becoming w 10 to 15 kt after
midnight. gusts up to 25 kt. seas 3 to 5 ft, subsiding to 2 to
3 ft after midnight. wave detail: sw 3 ft at 4 seconds and se
2 ft at 9 seconds, becoming w 2 ft at 3 seconds and se 1 foot at
8 seconds. patchy fog in the evening. showers likely in the
evening with vsby 1 nm or less. 
.tue...w winds 5 to 10 kt, becoming sw in the afternoon. seas
around 2 ft in the morning, then 1 foot or less. wave detail: w
1 foot at 3 seconds and se 1 foot at 9 seconds. 
.tue night...sw winds 5 to 10 kt. seas 1 foot or less. wave
detail: sw 1 foot at 2 seconds and se 1 foot at 9 seconds. 
.wed and wed night...sw winds 5 to 10 kt. seas 1 foot or less.
wave detail: sw 1 foot at 2 seconds and e 1 foot at 10 seconds. 
.thu through fri night...sw winds 10 to 15 kt with gusts up to
20 kt. seas 2 to 3 ft. wave detail: sw 2 ft at 3 seconds and se
2 ft at 9 seconds.  

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 031403
cwfbox
expires:202608040300;;555504

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt mon aug 3 2026

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


anz232-040300-
nantucket sound-
1003 am edt mon aug 3 2026

...small craft advisory in effect through late tonight...

.this afternoon...s winds around 25 kt with gusts up to 40 kt.
seas 3 to 5 ft. wave detail: s 5 ft at 5 seconds and e 1 foot at
8 seconds. patchy fog. isolated tstms. a slight chance of
showers, then a chance of showers. 
.tonight...sw winds 20 to 25 kt, becoming w 15 to 20 kt after
midnight. gusts up to 30 kt. seas 3 to 5 ft. wave detail: sw 4 ft
at 5 seconds and se 2 ft at 9 seconds. showers likely, mainly in
the evening. patchy fog in the evening with vsby 1 nm or less. 
.tue...w winds 5 to 10 kt, becoming sw in the afternoon. seas
2 to 3 ft. wave detail: w 2 ft at 4 seconds and se 1 foot at
8 seconds. 
.tue night...sw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: sw
2 ft at 5 seconds and se 1 foot at 8 seconds. 
.wed and wed night...sw winds 5 to 10 kt. seas around 2 ft. wave
detail: sw 2 ft at 5 seconds and se 1 foot at 7 seconds. 
.thu through fri night...sw winds 15 to 20 kt with gusts up to
25 kt. seas 2 to 3 ft. wave detail: sw 3 ft at 4 seconds and e
1 foot at 8 seconds.  

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 031403
cwfbox
expires:202608040300;;555505

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt mon aug 3 2026

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


anz233-040300-
vineyard sound-
1003 am edt mon aug 3 2026

...small craft advisory in effect through late tonight...

.this afternoon...s winds 20 to 25 kt with gusts up to 40 kt.
seas 4 to 6 ft. wave detail: sw 6 ft at 7 seconds and e 4 ft at
9 seconds. patchy fog. isolated tstms. a chance of showers, then
showers. 
.tonight...sw winds 20 to 25 kt with gusts up to 30 kt, becoming
nw 10 to 15 kt with gusts up to 20 kt after midnight. seas 4 to
6 ft. wave detail: sw 6 ft at 8 seconds and e 3 ft at 9 seconds.
showers likely, mainly in the evening. patchy fog in the evening
with vsby 1 to 3 nm. 
.tue...w winds 5 to 10 kt, becoming sw in the afternoon. seas
2 to 4 ft. wave detail: sw 4 ft at 8 seconds and e 1 foot at
8 seconds. 
.tue night...sw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: sw
3 ft at 7 seconds and e 1 foot at 8 seconds. 
.wed and wed night...sw winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: sw 3 ft at 7 seconds and se 1 foot at 7 seconds. 
.thu through fri night...sw winds 15 to 20 kt with gusts up to
25 kt. seas 2 to 4 ft. wave detail: sw 4 ft at 5 seconds and se
1 foot at 7 seconds.  

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 031403
cwfbox
expires:202608040300;;555506

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt mon aug 3 2026

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


anz234-040300-
buzzards bay-
1003 am edt mon aug 3 2026

...small craft advisory in effect through late tonight...

.this afternoon...s winds 25 to 30 kt with gusts up to 40 kt.
seas 4 to 6 ft. wave detail: s 5 ft at 5 seconds and se 4 ft at
9 seconds. patchy fog. isolated tstms. a chance of showers, then
showers. 
.tonight...sw winds 20 to 25 kt with gusts up to 30 kt, becoming
nw 10 to 15 kt with gusts up to 20 kt after midnight. seas 3 to
5 ft. wave detail: sw 5 ft at 6 seconds and se 3 ft at 9 seconds.
patchy fog in the evening. showers likely in the evening with
vsby 1 to 3 nm. 
.tue...w winds 5 to 10 kt, becoming sw in the afternoon. seas
2 to 3 ft. wave detail: sw 2 ft at 7 seconds and se 2 ft at
8 seconds. 
.tue night...sw winds 5 to 10 kt. seas around 2 ft. wave detail:
sw 2 ft at 5 seconds and se 2 ft at 8 seconds. 
.wed and wed night...sw winds 5 to 10 kt. seas around 2 ft. wave
detail: s 2 ft at 7 seconds. 
.thu through fri night...sw winds 15 to 20 kt with gusts up to
25 kt. seas 2 to 4 ft. wave detail: s 3 ft at 5 seconds.  

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 031403
cwfbox
expires:202608040300;;555507

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt mon aug 3 2026

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


anz235-040300-
rhode island sound-
1003 am edt mon aug 3 2026

...small craft advisory in effect through tuesday afternoon...

.this afternoon...s winds 20 to 25 kt with gusts up to 35 kt.
seas 5 to 8 ft. wave detail: s 8 ft at 8 seconds and e 8 ft at
9 seconds. patchy fog. showers with isolated tstms. 
.tonight...sw winds 20 to 25 kt, becoming nw 15 to 20 kt after
midnight. seas 5 to 8 ft, subsiding to 4 to 6 ft after midnight.
wave detail: e 8 ft at 9 seconds and sw 8 ft at 9 seconds,
becoming sw 6 ft at 8 seconds and e 1 foot at 8 seconds. patchy
fog in the evening. showers likely in the evening with vsby 1 to
3 nm.
.tue...w winds 5 to 10 kt, becoming sw in the afternoon. seas
3 to 5 ft. wave detail: s 5 ft at 8 seconds and e 3 ft at
8 seconds. 
.tue night...sw winds 5 to 10 kt. seas 2 to 4 ft. wave detail: se
4 ft at 7 seconds. 
.wed and wed night...sw winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: s 3 ft at 7 seconds. 
.thu through fri night...sw winds 15 to 20 kt. seas 2 to 4 ft.
wave detail: se 4 ft at 7 seconds.  

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 031403
cwfbox
expires:202608040300;;555510

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt mon aug 3 2026

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


anz236-040300-
narragansett bay-
1003 am edt mon aug 3 2026

...small craft advisory in effect until 5 pm edt this afternoon...

.this afternoon...s winds 20 to 25 kt with gusts up to 35 kt.
waves 3 to 5 ft. patchy fog. isolated tstms. a slight chance of
showers, then showers. vsby 1 to 3 nm. 
.tonight...sw winds 15 to 20 kt with gusts up to 25 kt, becoming
nw 5 to 10 kt after midnight. waves 2 to 4 ft. patchy fog in the
evening. showers likely in the evening with vsby 1 to 3 nm. 
.tue...w winds around 5 kt, becoming sw in the afternoon. waves
2 to 3 ft. 
.tue night...sw winds 5 to 10 kt, diminishing to around 5 kt
after midnight. waves around 2 ft. 
.wed and wed night...sw winds 5 to 10 kt. waves around 2 ft. 
.thu through fri night...sw winds 10 to 15 kt with gusts up to
20 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 031403
cwfbox
expires:202608040300;;555498

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt mon aug 3 2026

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


anz250-040300-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
1003 am edt mon aug 3 2026

...small craft advisory in effect through tuesday afternoon...

.this afternoon...s winds around 20 kt with gusts up to 30 kt.
seas 3 to 5 ft. wave detail: s 5 ft at 6 seconds and e 2 ft at
9 seconds. patchy fog. a slight chance of showers with isolated
tstms, then showers with vsby 1 to 3 nm. 
.tonight...sw winds 15 to 20 kt, becoming w 10 to 15 kt after
midnight. gusts up to 25 kt. seas 3 to 5 ft. wave detail: s 5 ft
at 7 seconds. patchy fog in the evening. showers likely in the
evening with vsby 1 nm or less. 
.tue...sw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se 3 ft
at 8 seconds and w 2 ft at 4 seconds. 
.tue night...sw winds 5 to 10 kt. seas around 2 ft. wave detail:
sw 2 ft at 3 seconds and se 2 ft at 7 seconds. 
.wed and wed night...sw winds 5 to 10 kt. seas around 2 ft. wave
detail: s 2 ft at 6 seconds and se 2 ft at 10 seconds. 
.thu through fri night...sw 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 e
1 foot at 9 seconds.  

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 031403
cwfbox
expires:202608040300;;555501

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt mon aug 3 2026

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


anz254-040300-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
1003 am edt mon aug 3 2026

...small craft advisory in effect through tuesday afternoon...

.this afternoon...s winds 20 to 25 kt with gusts up to 30 kt.
seas 5 to 7 ft. wave detail: s 7 ft at 8 seconds and e 5 ft at
8 seconds. patchy fog. a chance of showers. isolated tstms. 
.tonight...sw winds 20 to 25 kt, becoming w 15 to 20 kt after
midnight. gusts up to 30 kt. seas 5 to 7 ft. wave detail: s 7 ft
at 8 seconds and e 3 ft at 8 seconds. showers likely, mainly in
the evening. patchy fog in the evening with vsby 1 nm or less. 
.tue...w winds 5 to 10 kt with gusts up to 20 kt, becoming sw in
the afternoon. seas 3 to 5 ft. wave detail: w 5 ft at 8 seconds
and se 3 ft at 9 seconds. 
.tue night...sw winds 5 to 10 kt. seas 2 to 4 ft. wave detail: sw
4 ft at 7 seconds and e 1 foot at 11 seconds. 
.wed and wed night...sw winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: s 3 ft at 7 seconds and e 1 foot at 10 seconds. 
.thu through fri night...sw winds 10 to 15 kt with gusts up to
20 kt. seas 2 to 4 ft. wave detail: sw 4 ft at 6 seconds and e
1 foot at 9 seconds.  

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 031403
cwfbox
expires:202608040300;;555502

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt mon aug 3 2026

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


anz255-040300-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
1003 am edt mon aug 3 2026

...small craft advisory in effect through tuesday evening...

.this afternoon...s winds 20 to 25 kt with gusts up to 35 kt.
seas 6 to 9 ft. wave detail: s 9 ft at 8 seconds and e 1 foot at
11 seconds. patchy fog. isolated tstms. a slight chance of
showers, then a chance of showers. 
.tonight...sw winds 20 to 25 kt, becoming w 15 to 20 kt after
midnight. gusts up to 30 kt. seas 6 to 9 ft, subsiding to 5 to
7 ft after midnight. wave detail: s 9 ft at 9 seconds and e
1 foot at 9 seconds, becoming sw 7 ft at 8 seconds and e 1 foot
at 8 seconds. showers likely in the evening. a chance of showers
after midnight. patchy fog in the evening with vsby 1 nm or less.
.tue...nw winds 5 to 10 kt, becoming sw in the afternoon. seas
4 to 6 ft. wave detail: s 6 ft at 8 seconds and e 1 foot at
9 seconds. 
.tue night...sw winds 5 to 10 kt. seas 3 to 4 ft. wave detail: s
4 ft at 7 seconds and e 1 foot at 9 seconds. 
.wed and wed night...sw winds 5 to 10 kt. seas 2 to 4 ft. wave
detail: sw 4 ft at 7 seconds and e 1 foot at 8 seconds. 
.thu through fri night...sw winds 15 to 20 kt. seas 3 to 4 ft.
wave detail: s 4 ft at 7 seconds and e 1 foot at 9 seconds.  

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.

$$