fzus51 kbox 162304
cwfbox
expires:202608171200;;315200

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt sun aug 16 2026

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


anz231-171200-
cape cod bay-
703 pm edt sun aug 16 2026

...small craft advisory in effect from monday morning through
monday evening...

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

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 162304
cwfbox
expires:202608171200;;315204

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt sun aug 16 2026

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


anz232-171200-
nantucket sound-
703 pm edt sun aug 16 2026

...small craft advisory in effect from monday morning through
monday evening...

.tonight...s winds 10 to 15 kt. gusts up to 20 kt after midnight.
seas 2 to 3 ft. wave detail: se 2 ft at 3 seconds and se 1 foot
at 11 seconds. a chance of showers after midnight. 
.mon...s winds around 15 kt with gusts up to 20 kt. seas 3 to
4 ft. wave detail: se 2 ft at 4 seconds and se 1 foot at
10 seconds. a chance of showers in the morning, then showers
likely in the afternoon. patchy fog in the afternoon with vsby
1 to 3 nm. 
.mon night...se winds 10 to 15 kt, becoming ne 5 to 10 kt after
midnight. seas 2 to 3 ft. wave detail: s 2 ft at 6 seconds and se
2 ft at 10 seconds. patchy fog. a chance of showers. vsby 1 to
3 nm. 
.tue...n winds around 10 kt. seas 2 to 3 ft. wave detail: ne
1 foot at 3 seconds and sw 1 foot at 7 seconds. patchy fog in the
morning. 
.tue night...n winds 5 to 10 kt, becoming nw after midnight. seas
around 2 ft. wave detail: ne 1 foot at 3 seconds and sw 1 foot at
6 seconds. 
.wed and wed night...sw winds 10 to 15 kt. seas around 2 ft. wave
detail: sw 2 ft at 4 seconds and e 1 foot at 7 seconds. 
.thu and thu night...w winds 10 to 15 kt. seas around 2 ft. a
chance of showers. 
.fri and fri night...ne winds around 10 kt, becoming e. 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 162304
cwfbox
expires:202608171200;;315205

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt sun aug 16 2026

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


anz233-171200-
vineyard sound-
703 pm edt sun aug 16 2026

...small craft advisory in effect from 2 am edt monday through
late monday night...

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

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 162304
cwfbox
expires:202608171200;;315206

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt sun aug 16 2026

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


anz234-171200-
buzzards bay-
703 pm edt sun aug 16 2026

...small craft advisory in effect from 2 am edt monday through
late monday night...

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

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 162304
cwfbox
expires:202608171200;;315207

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt sun aug 16 2026

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


anz235-171200-
rhode island sound-
703 pm edt sun aug 16 2026

...small craft advisory in effect from 2 am edt monday through
late monday night...

.tonight...s winds 10 to 15 kt. gusts up to 20 kt after midnight.
seas 2 to 4 ft. wave detail: s 3 ft at 4 seconds and se 1 foot at
9 seconds. a chance of showers after midnight. 
.mon...s winds 15 to 20 kt, becoming se 10 to 15 kt in the
afternoon. seas 4 to 6 ft. wave detail: s 4 ft at 5 seconds and
se 1 foot at 9 seconds. patchy fog. showers likely in the
morning. a chance of showers in the afternoon. vsby 1 to 3 nm. 
.mon night...e winds 5 to 10 kt, becoming n after midnight. seas
3 to 5 ft. wave detail: s 5 ft at 9 seconds and se 4 ft at
6 seconds. patchy fog. vsby 1 to 3 nm in the evening. 
.tue...n winds 5 to 10 kt, becoming w in the afternoon. seas 2 to
4 ft. wave detail: s 4 ft at 7 seconds and ne 1 foot at
3 seconds. 
.tue night through wed night...w winds 10 to 15 kt. seas 2 to
3 ft. wave detail: se 3 ft at 8 seconds. 
.thu and thu night...w winds 10 to 15 kt, diminishing to 5 to
10 kt. seas 2 to 3 ft. wave detail: sw 2 ft at 5 seconds and e
1 foot at 6 seconds. a chance of showers. 
.fri and fri night...ne winds 5 to 10 kt, becoming e. 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 162304
cwfbox
expires:202608171200;;315210

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt sun aug 16 2026

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


anz236-171200-
narragansett bay-
703 pm edt sun aug 16 2026

.tonight...s winds 10 to 15 kt. gusts up to 20 kt after midnight.
waves 2 to 3 ft. a chance of showers after midnight. 
.mon...se winds 10 to 15 kt with gusts up to 20 kt. waves 2 to
4 ft. patchy fog. showers likely in the morning. a chance of
showers in the afternoon. vsby 1 to 3 nm. 
.mon night...ne winds 5 to 10 kt, becoming n after midnight.
waves 2 to 3 ft. patchy fog. vsby 1 to 3 nm in the evening. 
.tue...n winds 5 to 10 kt, becoming nw in the afternoon. waves
around 2 ft. 
.tue night...s winds around 5 kt, becoming w after midnight.
waves around 2 ft. 
.wed and wed night...w winds 5 to 10 kt. waves around 2 ft. 
.thu and thu night...w winds 5 to 10 kt. waves around 2 ft. a
chance of showers. 
.fri and fri night...ne winds 5 to 10 kt, becoming e. waves
around 2 ft, then 1 foot or less.  

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 162304
cwfbox
expires:202608171200;;315198

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt sun aug 16 2026

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


anz250-171200-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
703 pm edt sun aug 16 2026

...small craft advisory in effect from monday morning through
monday evening...

.tonight...s winds 10 to 15 kt with gusts up to 20 kt. seas
around 3 ft. wave detail: s 2 ft at 3 seconds and e 1 foot at
3 seconds. a chance of showers after midnight. 
.mon...s winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
4 ft. wave detail: se 3 ft at 4 seconds and se 1 foot at
10 seconds. a chance of showers. patchy fog in the afternoon with
vsby 1 to 3 nm. 
.mon night...se winds 5 to 10 kt, becoming ne after midnight.
seas 2 to 4 ft. wave detail: se 3 ft at 4 seconds and se 1 foot
at 10 seconds. patchy fog. a chance of showers. vsby 1 to 3 nm. 
.tue...n winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se 3 ft
at 8 seconds and se 2 ft at 5 seconds. patchy fog in the morning
with vsby 1 to 3 nm. 
.tue night...ne winds around 5 kt, becoming nw around 5 kt after
midnight. seas 2 to 3 ft. wave detail: se 3 ft at 8 seconds and
sw 3 ft at 11 seconds. 
.wed and wed night...w winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: s 3 ft at 7 seconds and ne 1 foot at 4 seconds. 
.thu and thu night...w winds 5 to 10 kt. seas around 2 ft. a
chance of showers. 
.fri and fri night...ne winds 5 to 10 kt, becoming se. 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 162304
cwfbox
expires:202608171200;;315201

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt sun aug 16 2026

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


anz254-171200-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
703 pm edt sun aug 16 2026

...small craft advisory in effect from monday morning through
monday evening...

.tonight...s winds 10 to 15 kt. gusts up to 20 kt after midnight.
seas 2 to 3 ft. wave detail: s 2 ft at 4 seconds and ne 1 foot at
3 seconds. a slight chance of showers after midnight. 
.mon...s winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
5 ft. wave detail: se 3 ft at 4 seconds and se 1 foot at
9 seconds. a chance of showers. patchy fog in the afternoon with
vsby 1 to 3 nm. 
.mon night...se winds 10 to 15 kt with gusts up to 20 kt,
becoming e 5 to 10 kt after midnight. seas 3 to 5 ft. wave
detail: se 3 ft at 5 seconds and se 2 ft at 10 seconds. patchy
fog. a chance of showers. vsby 1 to 3 nm. 
.tue...n winds around 10 kt. seas 3 to 4 ft. wave detail: se 4 ft
at 8 seconds and s 3 ft at 7 seconds. patchy fog in the morning
with vsby 1 to 3 nm. 
.tue night...nw winds 5 to 10 kt. seas 2 to 4 ft. wave detail: se
4 ft at 8 seconds and ne 2 ft at 4 seconds. 
.wed and wed night...sw winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: se 2 ft at 6 seconds. 
.thu...w winds 5 to 10 kt. seas 2 to 3 ft. a chance of showers. 
.thu night...w winds 5 to 10 kt. seas 2 to 3 ft. a chance of
showers. 
.fri and fri night...ne winds 5 to 10 kt, becoming e. 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 162304
cwfbox
expires:202608171200;;315202

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt sun aug 16 2026

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


anz255-171200-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
703 pm edt sun aug 16 2026

...small craft advisory in effect from 2 am edt monday through
late monday night...

.tonight...s winds 10 to 15 kt. seas 2 to 4 ft. wave detail: s
3 ft at 4 seconds and ne 1 foot at 4 seconds. a slight chance of
showers after midnight. 
.mon...s winds 15 to 20 kt. seas 4 to 6 ft. wave detail: se 4 ft
at 5 seconds and se 1 foot at 8 seconds. patchy fog. showers
likely, mainly in the morning. vsby 1 to 3 nm. 
.mon night...se winds 10 to 15 kt, becoming ne after midnight.
seas 4 to 6 ft. wave detail: se 4 ft at 6 seconds and se 2 ft at
11 seconds. patchy fog. a chance of showers in the evening. vsby
1 to 3 nm. 
.tue...n winds 5 to 10 kt. seas 3 to 5 ft. wave detail: s 5 ft at
8 seconds and n 1 foot at 3 seconds. patchy fog in the morning
with vsby 1 to 3 nm. 
.tue night...nw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: s
3 ft at 7 seconds and se 2 ft at 8 seconds. 
.wed and wed night...sw winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: se 2 ft at 6 seconds and se 1 foot at 10 seconds. 
.thu and thu night...w winds 5 to 10 kt. seas 2 to 3 ft. a chance
of showers. 
.fri and fri night...ne winds 10 to 15 kt, becoming e 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.

$$