fzus51 kbox 152304
cwfbox
expires:202608161200;;257197

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt sat aug 15 2026

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


anz231-161200-
cape cod bay-
703 pm edt sat aug 15 2026

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

.tonight...se winds around 5 kt, becoming w around 5 kt after
midnight. seas 1 foot or less. wave detail: n 1 foot at 4 seconds
and se 1 foot at 11 seconds. 
.sun...n winds around 5 kt, becoming s 10 to 15 kt with gusts up
to 20 kt in the afternoon. seas 1 foot or less, then around 2 ft
in the afternoon. wave detail: n 1 foot at 4 seconds and se
1 foot at 12 seconds, becoming ne 1 foot at 3 seconds and s
1 foot at 3 seconds. 
.sun night...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 e 1 foot at
3 seconds. a chance of showers after midnight. 
.mon...s winds 10 to 15 kt with gusts up to 25 kt. seas 2 to
3 ft. wave detail: se 2 ft at 3 seconds and se 1 foot at
10 seconds. showers likely. 
.mon night...s winds 5 to 10 kt, becoming n after midnight. seas
around 2 ft. wave detail: se 2 ft at 4 seconds and se 1 foot at
10 seconds. showers likely in the evening. 
.tue and tue night...w winds 5 to 10 kt. seas around 2 ft. wave
detail: n 1 foot at 3 seconds and se 1 foot at 9 seconds. 
.wed and wed night...sw winds 5 to 10 kt. seas around 2 ft. 
.thu...sw winds 5 to 10 kt. seas around 2 ft. a chance of
showers. 
.thu night...nw winds 5 to 10 kt. seas around 2 ft. a chance of
showers.  

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 152304
cwfbox
expires:202608161200;;257201

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt sat aug 15 2026

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


anz232-161200-
nantucket sound-
703 pm edt sat aug 15 2026

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

.tonight...se winds around 5 kt, becoming sw after midnight. seas
1 foot or less. wave detail: ne 1 foot at 2 seconds and s 1 foot
at 5 seconds. 
.sun...s winds around 5 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. seas 1 foot or less, then around
2 ft in the afternoon. wave detail: sw 1 foot at 3 seconds and ne
1 foot at 3 seconds, becoming s 2 ft at 3 seconds and ne 1 foot
at 3 seconds. 
.sun night...s winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. seas 2 to 3 ft. wave detail: se 2 ft at 4 seconds and
se 1 foot at 10 seconds. 
.mon...s winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. wave detail: se 3 ft at 4 seconds and se 1 foot at
10 seconds. a chance of showers in the morning, then showers
likely in the afternoon. 
.mon night...sw winds 10 to 15 kt with gusts up to 20 kt,
becoming n after midnight. seas 2 to 4 ft. wave detail: s 3 ft at
5 seconds and se 1 foot at 10 seconds. showers likely in the
evening. 
.tue and tue night...w winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: n 2 ft at 4 seconds and e 1 foot at 4 seconds. 
.wed and wed night...sw winds 10 to 15 kt. gusts up to 20 kt.
seas around 2 ft. 
.thu and thu night...sw winds 10 to 15 kt with gusts up to 20 kt,
becoming nw. seas around 2 ft. a chance of showers.  

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 152304
cwfbox
expires:202608161200;;257202

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt sat aug 15 2026

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


anz233-161200-
vineyard sound-
703 pm edt sat aug 15 2026

...small craft advisory in effect from late sunday night through
late monday night...

.tonight...s winds 5 to 10 kt, becoming sw after midnight. seas
1 foot or less. wave detail: e 1 foot at 2 seconds and sw 1 foot
at 3 seconds. 
.sun...ne winds around 5 kt, becoming s 10 to 15 kt in the
afternoon. seas 1 foot or less, then around 2 ft in the
afternoon. wave detail: e 1 foot at 2 seconds and sw 1 foot at
4 seconds, becoming sw 1 foot at 4 seconds and ne 1 foot at
5 seconds. 
.sun night...s winds 10 to 15 kt, increasing to 15 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 with gusts up to 25 kt. seas 3 to
5 ft. wave detail: s 4 ft at 6 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 morning. 
.mon night...sw winds 10 to 15 kt, becoming n after midnight.
seas 2 to 4 ft. wave detail: s 3 ft at 6 seconds and se 2 ft at
9 seconds. a chance of showers in the evening. 
.tue and tue night...sw winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: w 3 ft at 6 seconds and s 3 ft at 7 seconds. 
.wed and wed night...sw winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. 
.thu...sw winds 10 to 15 kt. seas around 2 ft. a chance of
showers. 
.thu night...nw winds 10 to 15 kt. seas around 2 ft. a chance of
showers.  

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 152304
cwfbox
expires:202608161200;;257203

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt sat aug 15 2026

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


anz234-161200-
buzzards bay-
703 pm edt sat aug 15 2026

...small craft advisory in effect from late sunday night through
late monday night...

.tonight...s winds 5 to 10 kt, becoming w after midnight. seas
1 foot or less. wave detail: e 1 foot at 2 seconds and sw 1 foot
at 3 seconds. 
.sun...ne winds around 5 kt, becoming s 10 to 15 kt with gusts up
to 20 kt in the afternoon. seas 1 foot or less, then around 2 ft
in the afternoon. wave detail: sw 1 foot at 3 seconds and e
1 foot at 3 seconds, becoming ne 1 foot at 3 seconds and s 1 foot
at 3 seconds. 
.sun night...s winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. seas 2 to 3 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 with gusts up to 25 kt. seas 2 to
4 ft. wave detail: s 4 ft at 6 seconds and se 1 foot at
10 seconds. showers likely. 
.mon night...sw winds 5 to 10 kt, becoming n after midnight. seas
2 to 3 ft. wave detail: s 3 ft at 7 seconds and se 2 ft at
9 seconds. a chance of showers in the evening. 
.tue and tue night...sw winds 5 to 10 kt. seas around 2 ft. wave
detail: w 2 ft at 6 seconds and se 2 ft at 7 seconds. 
.wed and wed night...sw winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. 
.thu...sw winds 10 to 15 kt. seas around 2 ft. a chance of
showers. 
.thu night...nw winds 5 to 10 kt. seas around 2 ft. a chance of
showers.  

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 152304
cwfbox
expires:202608161200;;257204

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt sat aug 15 2026

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


anz235-161200-
rhode island sound-
703 pm edt sat aug 15 2026

...small craft advisory in effect from late sunday night through
late monday night...

.tonight...s winds 5 to 10 kt, becoming w after midnight. seas
1 foot or less. wave detail: e 1 foot at 2 seconds and sw 1 foot
at 4 seconds. 
.sun...ne winds around 5 kt, becoming s 10 to 15 kt in the
afternoon. seas 1 foot or less, then around 2 ft in the
afternoon. wave detail: se 1 foot at 4 seconds and se 1 foot at
9 seconds, becoming se 2 ft at 3 seconds and se 1 foot at
9 seconds. 
.sun night...s winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. seas 2 to 3 ft, building to 3 to 5 ft after midnight.
wave detail: s 2 ft at 4 seconds and se 1 foot at 9 seconds,
becoming s 4 ft at 4 seconds and se 1 foot at 8 seconds. a chance
of showers after midnight. 
.mon...s winds 15 to 20 kt with gusts up to 25 kt. seas 5 to
7 ft. wave detail: s 5 ft at 7 seconds and se 2 ft at 9 seconds.
showers likely. patchy fog in the morning. 
.mon night...w winds around 10 kt, becoming n after midnight.
seas 3 to 5 ft. wave detail: se 4 ft at 7 seconds. a chance of
showers in the evening. 
.tue and tue night...w winds 5 to 10 kt. seas 2 to 4 ft. wave
detail: s 4 ft at 7 seconds and e 2 ft at 7 seconds. 
.wed and wed night...sw winds 10 to 15 kt. seas around 2 ft. 
.thu...sw winds 10 to 15 kt. seas 2 to 3 ft. a chance of showers.
.thu night...nw winds 10 to 15 kt. seas 2 to 3 ft. a chance of
showers.  

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 152304
cwfbox
expires:202608161200;;257207

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt sat aug 15 2026

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


anz236-161200-
narragansett bay-
703 pm edt sat aug 15 2026

.tonight...sw winds 5 to 10 kt, becoming nw after midnight. waves
1 foot or less. 
.sun...n winds around 5 kt, becoming s 10 to 15 kt in the
afternoon. waves 1 foot or less, then around 2 ft in the
afternoon. 
.sun night...s winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. waves 2 to 3 ft. a chance of showers after midnight. 
.mon...s winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. gusts up to 25 kt. waves 2 to 4 ft. showers likely.
patchy fog in the morning. 
.mon night...nw winds 5 to 10 kt. waves 2 to 3 ft. a chance of
showers in the evening. 
.tue and tue night...w winds 5 to 10 kt. waves 2 to 3 ft. 
.wed and wed night...sw winds 10 to 15 kt, diminishing to 5 to
10 kt. waves around 2 ft. 
.thu...sw winds 5 to 10 kt. waves around 2 ft. a chance of
showers. 
.thu night...nw winds 5 to 10 kt. waves around 2 ft. a chance of
showers.  

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 152304
cwfbox
expires:202608161200;;257195

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt sat aug 15 2026

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


anz250-161200-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
703 pm edt sat aug 15 2026

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

.tonight...s winds around 5 kt, becoming w after midnight. seas
1 foot or less. wave detail: sw 1 foot at 2 seconds and n 1 foot
at 4 seconds. 
.sun...ne winds around 5 kt, becoming se 10 to 15 kt with gusts
up to 20 kt in the afternoon. seas 1 foot or less, then around
2 ft in the afternoon. wave detail: n 1 foot at 3 seconds and se
1 foot at 10 seconds, becoming s 1 foot at 2 seconds and n 1 foot
at 3 seconds.
.sun night...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 e 1 foot at
3 seconds. 
.mon...s winds 15 to 20 kt with gusts up to 25 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 in the morning, then showers in
the afternoon. 
.mon night...se winds 5 to 10 kt with gusts up to 20 kt, becoming
n after midnight. seas 2 to 4 ft. wave detail: se 3 ft at
5 seconds and se 1 foot at 10 seconds. a chance of showers in the
evening. 
.tue and tue night...w winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: se 3 ft at 7 seconds and nw 1 foot at 5 seconds. 
.wed and wed night...sw winds 5 to 10 kt. gusts up to 20 kt. seas
around 2 ft. 
.thu and thu night...sw winds 5 to 10 kt, becoming nw. seas 2 to
3 ft. a chance of showers.  

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 152304
cwfbox
expires:202608161200;;257198

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt sat aug 15 2026

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


anz254-161200-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
703 pm edt sat aug 15 2026

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

.tonight...s winds around 5 kt, becoming w around 5 kt after
midnight. seas around 2 ft. wave detail: n 1 foot at 4 seconds
and s 1 foot at 6 seconds. 
.sun...s winds around 5 kt, increasing to 5 to 10 kt in the
afternoon. seas around 2 ft. wave detail: s 2 ft at 5 seconds and
n 1 foot at 4 seconds. 
.sun night...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 ne 1 foot at
3 seconds. 
.mon...s winds 15 to 20 kt with gusts up to 25 kt. seas 4 to
6 ft. wave detail: se 4 ft at 5 seconds and se 1 foot at
9 seconds. showers likely. 
.mon night...s winds 10 to 15 kt with gusts up to 20 kt, becoming
nw after midnight. seas 4 to 6 ft, subsiding to 3 to 4 ft after
midnight. wave detail: s 4 ft at 6 seconds and se 3 ft at
10 seconds, becoming se 4 ft at 6 seconds. a chance of showers. 
.tue and tue night...w winds 5 to 10 kt. seas 2 to 4 ft. wave
detail: s 4 ft at 7 seconds and nw 2 ft at 5 seconds. 
.wed and wed night...sw winds 5 to 10 kt. seas 2 to 3 ft. 
.thu and thu night...sw winds 10 to 15 kt, becoming nw 5 to
10 kt. seas 2 to 3 ft. a chance of showers.  

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 152304
cwfbox
expires:202608161200;;257199

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt sat aug 15 2026

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


anz255-161200-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
703 pm edt sat aug 15 2026

...small craft advisory in effect from late sunday night through
late monday night...

.tonight...se winds around 5 kt, becoming sw after midnight. seas
around 2 ft this evening, then 1 foot or less. wave detail: ne
1 foot at 3 seconds and s 1 foot at 5 seconds, becoming ne 1 foot
at 3 seconds and sw 1 foot at 5 seconds. 
.sun...s winds around 5 kt, increasing to 5 to 10 kt in the
afternoon. seas 1 foot or less, then around 2 ft in the
afternoon. wave detail: ne 1 foot at 4 seconds and s 1 foot at
5 seconds, becoming s 2 ft at 5 seconds and ne 1 foot at
4 seconds. 
.sun night...s winds around 10 kt, increasing to 15 to 20 kt
after midnight. seas 2 to 4 ft. wave detail: s 3 ft at 4 seconds
and ne 1 foot at 4 seconds. 
.mon...s winds 15 to 20 kt with gusts up to 25 kt. seas 5 to
7 ft. wave detail: s 5 ft at 5 seconds and se 5 ft at 10 seconds.
a chance of showers in the morning, then showers likely in the
afternoon. 
.mon night...sw winds 10 to 15 kt with gusts up to 20 kt,
becoming nw after midnight. seas 4 to 6 ft. wave detail: s 5 ft
at 7 seconds and se 1 foot at 4 seconds. a chance of showers in
the evening. 
.tue...n winds 5 to 10 kt. seas 3 to 5 ft. wave detail: sw 5 ft
at 7 seconds and ne 1 foot at 4 seconds. 
.tue night...n winds around 5 kt, becoming w after midnight. seas
2 to 3 ft. 
.wed and wed night...sw winds 5 to 10 kt. seas around 2 ft. 
.thu and thu night...sw winds 10 to 15 kt, becoming nw. seas 2 to
3 ft. a chance of showers.  

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.

$$