fzus51 kbox 281703
cwfbox
expires:202607290600;;227243

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt tue jul 28 2026

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


anz231-290600-
cape cod bay-
103 pm edt tue jul 28 2026

...small craft advisory in effect from late tonight through
wednesday evening...

.this afternoon...s winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: s 1 foot at 3 seconds and e 1 foot
at 6 seconds. 
.tonight...se winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: s 1 foot at 3 seconds and e 1 foot at
7 seconds. 
.wed...se winds 15 to 20 kt with gusts up to 30 kt. seas around
3 ft. wave detail: e 3 ft at 4 seconds. showers.
.wed night...e winds 10 to 15 kt with gusts up to 25 kt, becoming
se 5 to 10 kt after midnight. seas 2 to 3 ft. wave detail: e 2 ft
at 4 seconds. showers. patchy fog in the evening. vsby 1 to 3 nm.
.thu...e winds 5 to 10 kt. seas around 2 ft. wave detail: se
1 foot at 2 seconds and ne 1 foot at 5 seconds. a chance of
showers. 
.thu night...ne winds 5 to 10 kt. seas around 2 ft. wave detail:
n 2 ft at 5 seconds and e 1 foot at 2 seconds. a chance of
showers. 
.fri...n winds 5 to 10 kt. seas around 2 ft. a chance of showers.
.fri night through sat night...sw winds around 5 kt. seas around
2 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 281703
cwfbox
expires:202607290600;;227247

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt tue jul 28 2026

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


anz232-290600-
nantucket sound-
103 pm edt tue jul 28 2026

...small craft advisory in effect from 8 pm edt this evening
through wednesday evening...

.this afternoon...s winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: s 2 ft at 3 seconds and se 1 foot at
7 seconds. 
.tonight...se winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. gusts up to 25 kt. seas 2 to 3 ft. wave detail: se 3 ft
at 4 seconds and se 1 foot at 7 seconds. 
.wed...se winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
4 ft. wave detail: se 4 ft at 6 seconds. showers.
.wed night...se winds 15 to 20 kt, becoming s around 10 kt after
midnight. seas 2 to 4 ft. wave detail: e 3 ft at 5 seconds and sw
1 foot at 6 seconds. showers, mainly in the evening. patchy fog
in the evening. 
.thu...s winds 10 to 15 kt. seas 2 to 3 ft. wave detail: s 2 ft
at 3 seconds and se 2 ft at 7 seconds. a chance of showers. 
.thu night...sw winds 10 to 15 kt, becoming n after midnight.
seas 2 to 3 ft. wave detail: sw 2 ft at 3 seconds and se 2 ft at
8 seconds. a chance of showers. 
.fri...n winds 10 to 15 kt. seas 2 to 3 ft. a chance of showers. 
.fri night through sat night...sw winds 5 to 10 kt. seas 2 to
3 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 281703
cwfbox
expires:202607290600;;227248

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt tue jul 28 2026

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


anz233-290600-
vineyard sound-
103 pm edt tue jul 28 2026

...small craft advisory in effect from 8 pm edt this evening
through wednesday evening...

.this afternoon...s winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: s 2 ft at 6 seconds. 
.tonight...se winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
3 ft. wave detail: s 3 ft at 6 seconds. a chance of showers after
midnight. 
.wed...se winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. gusts up to 30 kt. seas 3 to 4 ft. wave detail: se
4 ft at 7 seconds. showers.
.wed night...se winds 10 to 15 kt with gusts up to 20 kt,
becoming s 5 to 10 kt after midnight. seas 2 to 4 ft. wave
detail: e 2 ft at 6 seconds and s 2 ft at 7 seconds. showers.
patchy fog in the evening. 
.thu...s winds 5 to 10 kt, becoming sw 10 to 15 kt in the
afternoon. seas 2 to 3 ft. wave detail: sw 3 ft at 4 seconds and
s 3 ft at 7 seconds. a chance of showers. 
.thu night...n winds around 10 kt. seas 2 to 3 ft. wave detail:
sw 3 ft at 9 seconds and w 1 foot at 5 seconds. a chance of
showers. 
.fri...n winds around 10 kt. seas 2 to 3 ft. a chance of showers.
.fri night through sat night...sw winds 5 to 10 kt. seas 2 to
3 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 281703
cwfbox
expires:202607290600;;227249

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt tue jul 28 2026

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


anz234-290600-
buzzards bay-
103 pm edt tue jul 28 2026

...small craft advisory in effect from 8 pm edt this evening
through wednesday evening...

.this afternoon...s winds around 15 kt with gusts up to 25 kt.
seas 2 to 3 ft. wave detail: s 2 ft at 4 seconds and se 1 foot at
7 seconds. 
.tonight...se winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
3 ft. wave detail: se 3 ft at 4 seconds and se 2 ft at 7 seconds.
a chance of showers after midnight. 
.wed...se winds 20 to 25 kt with gusts up to 30 kt. seas 3 to
4 ft. wave detail: se 4 ft at 9 seconds and se 3 ft at 4 seconds.
showers.
.wed night...se winds 10 to 15 kt with gusts up to 20 kt,
becoming s 5 to 10 kt after midnight. seas 2 to 3 ft. wave
detail: e 2 ft at 5 seconds. showers. patchy fog in the evening. 
.thu...s winds 10 to 15 kt, becoming sw with gusts up to 20 kt in
the afternoon. seas around 2 ft. wave detail: sw 2 ft at
4 seconds and s 2 ft at 7 seconds. a chance of showers in the
morning, then showers likely in the afternoon. 
.thu night...n winds around 10 kt. seas around 2 ft. wave detail:
nw 1 foot at 4 seconds and s 1 foot at 9 seconds. a chance of
showers. 
.fri...n winds around 10 kt. seas around 2 ft. a chance of
showers. 
.fri night through sat night...sw winds 5 to 10 kt. seas around
2 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 281703
cwfbox
expires:202607290600;;227250

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt tue jul 28 2026

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


anz235-290600-
rhode island sound-
103 pm edt tue jul 28 2026

...small craft advisory in effect from 8 pm edt this evening
through wednesday evening...

.this afternoon...s winds around 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: s 3 ft at 6 seconds. 
.tonight...se winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. wave detail: se 4 ft at 6 seconds. a chance of showers
after midnight. 
.wed...se winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. gusts up to 30 kt. seas 4 to 6 ft. wave detail: s 6 ft
at 7 seconds. showers.
.wed night...se winds 10 to 15 kt with gusts up to 20 kt,
becoming s after midnight. seas 3 to 5 ft. wave detail: se 4 ft
at 7 seconds. showers likely, mainly in the evening. patchy fog
in the evening. 
.thu...sw winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas 3 to 4 ft. wave detail: s 4 ft at 8 seconds and sw 2 ft at
7 seconds. a chance of showers.
.thu night...n winds 10 to 15 kt. seas 3 to 4 ft. wave detail: s
4 ft at 9 seconds and nw 1 foot at 4 seconds. a chance of
showers. 
.fri through sat night...sw winds 10 to 15 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 281703
cwfbox
expires:202607290600;;227253

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt tue jul 28 2026

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


anz236-290600-
narragansett bay-
103 pm edt tue jul 28 2026

...small craft advisory in effect from 8 pm edt this evening
through wednesday evening...

.this afternoon...s winds around 15 kt with gusts up to 20 kt.
waves 2 to 3 ft. a slight chance of showers with isolated tstms. 
.tonight...se winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. gusts up to 25 kt. waves 2 to 3 ft. a chance of showers
after midnight. 
.wed...se winds 15 to 20 kt with gusts up to 25 kt. waves 2 to
4 ft. showers.
.wed night...e winds 10 to 15 kt, becoming se 5 to 10 kt after
midnight. waves 2 to 3 ft. showers likely. patchy fog in the
evening. 
.thu...e winds 5 to 10 kt, becoming n 10 to 15 kt in the
afternoon. waves 2 to 3 ft. a chance of showers in the morning,
then showers likely in the afternoon. 
.thu night...n winds 5 to 10 kt. waves 2 to 3 ft. a chance of
showers. 
.fri...n winds 5 to 10 kt. waves 2 to 3 ft. a chance of showers. 
.fri night...n winds 5 to 10 kt. waves around 2 ft. a chance of
showers. 
.sat and sat night...ne winds 5 to 10 kt, becoming sw. waves
around 2 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 281703
cwfbox
expires:202607290600;;227241

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt tue jul 28 2026

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


anz250-290600-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
103 pm edt tue jul 28 2026

...small craft advisory in effect from late tonight through
thursday morning...

.this afternoon...se winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 4 ft. wave detail: se 3 ft at 8 seconds and s 2 ft at
3 seconds. 
.tonight...se winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
4 ft. wave detail: se 3 ft at 4 seconds and se 2 ft at 8 seconds.
.wed...e winds 15 to 20 kt with gusts up to 30 kt. seas 3 to
5 ft. wave detail: se 5 ft at 6 seconds. a chance of showers in
the morning. showers likely in the afternoon. 
.wed night...e winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. gusts up to 25 kt. seas 3 to 5 ft. wave detail:
se 4 ft at 6 seconds. showers. patchy fog in the evening. vsby
1 to 3 nm. 
.thu...e winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
4 ft. wave detail: e 4 ft at 6 seconds and se 1 foot at
3 seconds. showers likely, mainly in the morning. 
.thu night...ne winds 5 to 10 kt. seas 3 to 4 ft. wave detail: e
4 ft at 7 seconds and w 1 foot at 4 seconds. a chance of showers.
.fri...ne winds 5 to 10 kt. seas 2 to 4 ft. a chance of showers. 
.fri night through sat night...s winds around 5 kt. seas 2 to
3 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 281703
cwfbox
expires:202607290600;;227244

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt tue jul 28 2026

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


anz254-290600-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
103 pm edt tue jul 28 2026

...small craft advisory in effect from 8 pm edt this evening
through thursday morning...

.this afternoon...s winds 10 to 15 kt with gusts up to 20 kt.
seas around 3 ft. wave detail: se 3 ft at 7 seconds and s 2 ft at
3 seconds. 
.tonight...se winds 10 to 15 kt with gusts up to 20 kt. seas
around 3 ft. wave detail: se 3 ft at 4 seconds and se 3 ft at
7 seconds. 
.wed...se winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. wave detail: se 5 ft at 6 seconds. a chance of showers in
the morning. showers likely in the afternoon. 
.wed night...se winds 10 to 15 kt, becoming s 5 to 10 kt after
midnight. gusts up to 25 kt. seas 3 to 5 ft. wave detail: se 4 ft
at 6 seconds. showers likely, mainly in the evening. patchy fog
in the evening. vsby 1 to 3 nm. 
.thu...s winds 5 to 10 kt. seas 3 to 5 ft. wave detail: se 4 ft
at 8 seconds and sw 1 foot at 3 seconds. 
.thu night...se winds 5 to 10 kt, becoming ne after midnight.
seas 3 to 4 ft. wave detail: se 4 ft at 8 seconds and sw 1 foot
at 3 seconds. a chance of showers. 
.fri...n winds around 10 kt. seas 3 to 5 ft. a chance of showers.
.fri night through sat night...sw winds 5 to 10 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 281703
cwfbox
expires:202607290600;;227245

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt tue jul 28 2026

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


anz255-290600-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
103 pm edt tue jul 28 2026

...small craft advisory in effect from 8 pm edt this evening
through thursday morning...

.this afternoon...s winds 10 to 15 kt with gusts up to 20 kt.
seas around 3 ft. wave detail: s 3 ft at 6 seconds. 
.tonight...se winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. gusts up to 25 kt. seas 3 to 4 ft. wave detail: se 4 ft
at 6 seconds. 
.wed...se winds 15 to 20 kt with gusts up to 25 kt. seas 4 to
6 ft. wave detail: se 5 ft at 7 seconds. showers.
.wed night...se winds 10 to 15 kt with gusts up to 20 kt,
becoming s after midnight. seas 4 to 5 ft. wave detail: s 5 ft at
7 seconds. showers likely, mainly in the evening. patchy fog in
the evening. 
.thu...s winds around 10 kt. seas 3 to 5 ft. wave detail: s 4 ft
at 8 seconds and sw 3 ft at 7 seconds. 
.thu night...sw winds around 10 kt, becoming nw after midnight.
seas 3 to 5 ft. wave detail: s 4 ft at 8 seconds and sw 2 ft at
4 seconds. a chance of showers. 
.fri...n winds around 10 kt. seas 3 to 5 ft. a chance of showers.
.fri night through sat night...sw winds 5 to 10 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.

$$