fzus51 kbox 251705
cwfbox
expires:202608260600;;342614

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt tue aug 25 2026

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


anz231-260600-
cape cod bay-
104 pm edt tue aug 25 2026

.this afternoon...sw winds 5 to 10 kt. seas around 2 ft. wave
detail: sw 1 foot at 2 seconds and se 1 foot at 6 seconds. 
.tonight...w winds 5 to 10 kt. seas around 2 ft in the evening,
then 1 foot or less. wave detail: sw 1 foot at 2 seconds and se
1 foot at 5 seconds, becoming w 1 foot at 2 seconds and se 1 foot
at 6 seconds. 
.wed...nw winds 5 to 10 kt, becoming e in the afternoon. seas
1 foot or less, then around 2 ft in the afternoon. wave detail:
nw 1 foot at 3 seconds and se 1 foot at 6 seconds, becoming s
2 ft at 5 seconds and nw 1 foot at 3 seconds. 
.wed night...s winds 5 to 10 kt. seas around 2 ft. wave detail:
sw 2 ft at 3 seconds and e 1 foot at 3 seconds. 
.thu...s winds 5 to 10 kt. gusts up to 20 kt in the afternoon.
seas around 2 ft. wave detail: sw 2 ft at 3 seconds and ne 1 foot
at 2 seconds. 
.thu night...s winds 5 to 10 kt. seas around 2 ft. wave detail: s
2 ft at 3 seconds and e 1 foot at 11 seconds. a chance of showers
after midnight. 
.fri...s winds 5 to 10 kt. seas around 2 ft. a chance of showers.
.fri night through sat night...s 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 251705
cwfbox
expires:202608260600;;342618

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt tue aug 25 2026

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


anz232-260600-
nantucket sound-
104 pm edt tue aug 25 2026

.this afternoon...sw winds around 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: sw 2 ft at 3 seconds and se 1 foot
at 6 seconds. 
.tonight...w winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. seas 2 to 3 ft. wave
detail: w 2 ft at 3 seconds and se 2 ft at 6 seconds. 
.wed...nw winds 5 to 10 kt, becoming sw in the afternoon. seas
around 2 ft. wave detail: w 1 foot at 4 seconds and e 1 foot at
6 seconds. 
.wed night...sw winds 5 to 10 kt. seas around 2 ft. wave detail:
sw 2 ft at 4 seconds and e 1 foot at 3 seconds. 
.thu...sw winds 5 to 10 kt, becoming s 10 to 15 kt in the
afternoon. seas around 2 ft. wave detail: sw 2 ft at 3 seconds
and e 1 foot at 9 seconds. 
.thu night...s winds 10 to 15 kt. seas around 2 ft. wave detail:
s 2 ft at 3 seconds and e 1 foot at 9 seconds. a chance of
showers after midnight. 
.fri...s winds around 10 kt. seas 2 to 3 ft. a chance of showers.
.fri night through sat night...se 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 251705
cwfbox
expires:202608260600;;342619

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt tue aug 25 2026

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


anz233-260600-
vineyard sound-
104 pm edt tue aug 25 2026

.this afternoon...sw winds around 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: s 3 ft at 5 seconds and se 1 foot at
11 seconds. 
.tonight...w winds 10 to 15 kt with gusts up to 20 kt, becoming
nw 5 to 10 kt after midnight. seas 2 to 3 ft. wave detail: sw
3 ft at 5 seconds and se 1 foot at 11 seconds. 
.wed...nw winds around 5 kt, becoming sw in the afternoon. seas
around 2 ft. wave detail: sw 1 foot at 5 seconds and se 1 foot at
10 seconds. 
.wed night...sw winds 5 to 10 kt. seas around 2 ft. wave detail:
s 1 foot at 5 seconds and se 1 foot at 9 seconds. 
.thu...sw winds 5 to 10 kt, becoming s 10 to 15 kt in the
afternoon. seas around 2 ft. wave detail: s 2 ft at 3 seconds and
se 1 foot at 9 seconds. 
.thu night...s winds 10 to 15 kt. seas 2 to 3 ft. wave detail: s
2 ft at 5 seconds and se 1 foot at 9 seconds. showers likely
after midnight. 
.fri...sw winds around 10 kt. seas 2 to 3 ft. a chance of
showers. 
.fri night through sat night...s 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 251705
cwfbox
expires:202608260600;;342620

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt tue aug 25 2026

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


anz234-260600-
buzzards bay-
104 pm edt tue aug 25 2026

.this afternoon...sw winds around 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: sw 2 ft at 3 seconds and s 2 ft at
6 seconds. 
.tonight...w winds 10 to 15 kt with gusts up to 20 kt, becoming
nw 5 to 10 kt after midnight. seas 2 to 3 ft. wave detail: s 2 ft
at 5 seconds and se 1 foot at 11 seconds. 
.wed...nw winds around 5 kt, becoming sw in the afternoon. seas
1 foot or less, then around 2 ft in the afternoon. wave detail:
sw 1 foot at 6 seconds and se 1 foot at 10 seconds, becoming sw
1 foot at 5 seconds and e 1 foot at 6 seconds. 
.wed night...sw winds 5 to 10 kt. seas around 2 ft. wave detail:
sw 1 foot at 4 seconds and e 1 foot at 7 seconds. 
.thu...sw winds 5 to 10 kt, becoming s 10 to 15 kt with gusts up
to 20 kt in the afternoon. seas around 2 ft. wave detail: s 2 ft
at 3 seconds and se 1 foot at 9 seconds. 
.thu night...s winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas around 2 ft. wave detail: s 2 ft at 5 seconds and
se 1 foot at 9 seconds. a chance of showers after midnight. 
.fri...s winds around 10 kt. seas around 2 ft. a chance of
showers. 
.fri night through sat night...s 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 251705
cwfbox
expires:202608260600;;342621

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt tue aug 25 2026

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


anz235-260600-
rhode island sound-
104 pm edt tue aug 25 2026

.this afternoon...sw winds around 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: sw 3 ft at 5 seconds and se 1 foot
at 11 seconds. 
.tonight...w winds 10 to 15 kt with gusts up to 20 kt, becoming
nw 5 to 10 kt after midnight. seas 2 to 3 ft. wave detail: s 3 ft
at 6 seconds and w 2 ft at 4 seconds. 
.wed...nw winds 5 to 10 kt, becoming sw in the afternoon. seas
around 2 ft. wave detail: sw 2 ft at 6 seconds and se 2 ft at
10 seconds. 
.wed night...sw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: sw
2 ft at 3 seconds and se 2 ft at 9 seconds. 
.thu...s winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. seas 2 to 3 ft. wave detail: sw
2 ft at 3 seconds and s 2 ft at 7 seconds. 
.thu night...s winds 10 to 15 kt. seas 2 to 3 ft. wave detail: sw
3 ft at 6 seconds and se 2 ft at 8 seconds. showers likely after
midnight. 
.fri...sw winds 5 to 10 kt. seas 3 to 4 ft. showers likely. 
.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 251705
cwfbox
expires:202608260600;;342624

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt tue aug 25 2026

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


anz236-260600-
narragansett bay-
104 pm edt tue aug 25 2026

.this afternoon...sw winds 10 to 15 kt with gusts up to 20 kt.
waves around 2 ft. 
.tonight...w winds 5 to 10 kt. waves around 2 ft. 
.wed...nw winds around 5 kt, becoming sw in the afternoon. waves
1 foot or less, then around 2 ft in the afternoon. 
.wed night...sw winds 5 to 10 kt. waves around 2 ft. 
.thu...s winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. waves around 2 ft. 
.thu night...s winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. waves around 2 ft. a chance of showers in the evening,
then showers likely after midnight. 
.fri...sw winds 5 to 10 kt. waves 2 to 3 ft. a chance of showers.
.fri night through sat night...sw winds 5 to 10 kt. waves 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 251705
cwfbox
expires:202608260600;;342612

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt tue aug 25 2026

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


anz250-260600-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
104 pm edt tue aug 25 2026

.this afternoon...sw winds 5 to 10 kt. seas around 2 ft. wave
detail: se 2 ft at 6 seconds and sw 1 foot at 2 seconds. 
.tonight...sw winds around 10 kt, becoming nw after midnight.
seas around 2 ft. wave detail: se 2 ft at 6 seconds and sw 1 foot
at 2 seconds. 
.wed...nw winds 5 to 10 kt, becoming se in the afternoon. seas
2 to 3 ft. wave detail: se 3 ft at 10 seconds and w 1 foot at
3 seconds. 
.wed night...s winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se
3 ft at 9 seconds and nw 1 foot at 3 seconds. 
.thu...sw winds 5 to 10 kt, becoming s 10 to 15 kt with gusts up
to 20 kt in the afternoon. seas 2 to 4 ft. wave detail: s 3 ft at
4 seconds and se 3 ft at 9 seconds. 
.thu night...s winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 4 ft. wave detail: s 3 ft at 4 seconds and se 3 ft at
9 seconds. a chance of showers after midnight. 
.fri...s winds 5 to 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 251705
cwfbox
expires:202608260600;;342615

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt tue aug 25 2026

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


anz254-260600-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
104 pm edt tue aug 25 2026

.this afternoon...sw winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: w 2 ft at 3 seconds and s 2 ft at
6 seconds. 
.tonight...sw winds 10 to 15 kt with gusts up to 20 kt, becoming
w 5 to 10 kt after midnight. seas 2 to 3 ft. wave detail: w 2 ft
at 4 seconds and s 2 ft at 6 seconds. 
.wed...nw winds 5 to 10 kt, becoming sw in the afternoon. seas
2 to 4 ft. wave detail: se 3 ft at 9 seconds and se 2 ft at
6 seconds. 
.wed night...sw winds 5 to 10 kt. seas 2 to 4 ft. wave detail: se
3 ft at 9 seconds and sw 2 ft at 4 seconds. 
.thu...s winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se 3 ft
at 9 seconds and sw 2 ft at 3 seconds. 
.thu night...s winds around 10 kt. seas around 3 ft. wave detail:
se 3 ft at 3 seconds and se 3 ft at 9 seconds. a chance of
showers after midnight. 
.fri...s winds around 10 kt. seas 3 to 4 ft. a chance of showers.
.fri night through sat night...n 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 251705
cwfbox
expires:202608260600;;342616

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt tue aug 25 2026

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


anz255-260600-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
104 pm edt tue aug 25 2026

.this afternoon...w winds 10 to 15 kt with gusts up to 20 kt.
seas around 3 ft. wave detail: sw 2 ft at 5 seconds and se 1 foot
at 6 seconds. 
.tonight...w winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. seas 2 to 3 ft. wave
detail: sw 3 ft at 5 seconds and se 1 foot at 6 seconds. 
.wed...nw winds 5 to 10 kt, becoming sw in the afternoon. seas
2 to 3 ft. wave detail: sw 2 ft at 5 seconds and se 2 ft at
10 seconds. 
.wed night...sw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se
3 ft at 9 seconds and sw 1 foot at 5 seconds. 
.thu...s winds 5 to 10 kt. seas 2 to 3 ft. wave detail: s 3 ft at
7 seconds and sw 1 foot at 3 seconds. 
.thu night...s winds around 10 kt. seas 3 to 4 ft. wave detail:
sw 3 ft at 5 seconds and se 3 ft at 9 seconds. a chance of
showers after midnight. 
.fri...s winds 5 to 10 kt. seas 3 to 4 ft. a chance of showers. 
.fri night through sat night...ne 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.

$$