fzus51 kbox 310503
cwfbox
expires:202608311800;;645242

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt mon aug 31 2026

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


anz231-311800-
cape cod bay-
103 am edt mon aug 31 2026

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

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 310503
cwfbox
expires:202608311800;;645246

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt mon aug 31 2026

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


anz232-311800-
nantucket sound-
103 am edt mon aug 31 2026

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

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 310503
cwfbox
expires:202608311800;;645247

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt mon aug 31 2026

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


anz233-311800-
vineyard sound-
103 am edt mon aug 31 2026

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

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 310503
cwfbox
expires:202608311800;;645248

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt mon aug 31 2026

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


anz234-311800-
buzzards bay-
103 am edt mon aug 31 2026

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

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 310503
cwfbox
expires:202608311800;;645249

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt mon aug 31 2026

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


anz235-311800-
rhode island sound-
103 am edt mon aug 31 2026

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

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 310503
cwfbox
expires:202608311800;;645252

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt mon aug 31 2026

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


anz236-311800-
narragansett bay-
103 am edt mon aug 31 2026

.rest of tonight...nw winds 5 to 10 kt. waves around 2 ft. 
.mon...n winds 5 to 10 kt, becoming se in the afternoon. waves
around 2 ft in the morning, then 1 foot or less. 
.mon night...s winds 5 to 10 kt. waves 1 foot or less. patchy fog
after midnight. showers likely after midnight. 
.tue...se winds 5 to 10 kt, becoming e 10 to 15 kt with gusts up
to 20 kt in the afternoon. waves around 2 ft. patchy fog. showers
likely in the morning. a chance of showers in the afternoon. 
.tue night and wed...se winds 10 to 15 kt with gusts up to 20 kt.
waves around 2 ft. a chance of showers through the night. a
chance of showers in the afternoon. 
.wed night...se winds 5 to 10 kt. waves around 2 ft. a chance of
showers in the evening, then showers with a chance of tstms after
midnight. 
.thu...sw winds 5 to 10 kt. waves around 2 ft. showers with a
chance of tstms. 
.thu night...w winds 5 to 10 kt. waves around 2 ft. a chance of
showers and tstms. 
.fri and fri night...nw winds 5 to 10 kt. 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 310503
cwfbox
expires:202608311800;;645240

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt mon aug 31 2026

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


anz250-311800-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
103 am edt mon aug 31 2026

.rest of tonight...nw winds around 10 kt with gusts up to 20 kt.
seas around 2 ft. wave detail: nw 2 ft at 3 seconds and se 2 ft
at 8 seconds. 
.mon...ne winds 5 to 10 kt, becoming e in the afternoon. seas
around 2 ft. wave detail: e 2 ft at 8 seconds and nw 1 foot at
3 seconds. 
.mon night...s winds 5 to 10 kt. seas around 2 ft. wave detail: s
1 foot at 2 seconds and e 1 foot at 7 seconds. a chance of
showers after midnight. 
.tue...se winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. seas around 2 ft. wave detail: se
2 ft at 3 seconds and se 2 ft at 8 seconds. a chance of showers.
patchy fog in the morning. 
.tue night and wed...se winds around 10 kt. seas 2 to 3 ft. wave
detail: se 3 ft at 6 seconds and s 2 ft at 3 seconds. 
.wed night...se winds around 10 kt. seas 2 to 3 ft. wave detail:
se 3 ft at 7 seconds and se 1 foot at 3 seconds. showers with a
chance of tstms. 
.thu...s winds 5 to 10 kt with gusts up to 20 kt. seas 2 to 3 ft.
showers likely with a chance of tstms. 
.thu night...nw winds 5 to 10 kt. seas 2 to 3 ft. a chance of
showers. 
.fri and fri night...n winds 5 to 10 kt, increasing to 10 to
15 kt with gusts up to 20 kt. seas 2 to 3 ft.  

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 310503
cwfbox
expires:202608311800;;645243

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt mon aug 31 2026

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


anz254-311800-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
103 am edt mon aug 31 2026

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

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 310503
cwfbox
expires:202608311800;;645244

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 am edt mon aug 31 2026

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


anz255-311800-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
103 am edt mon aug 31 2026

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

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.

$$