fzus51 kbox 311104
cwfbox
expires:202609010000;;660497

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

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


anz231-010000-
cape cod bay-
704 am edt mon aug 31 2026

.today...n winds 5 to 10 kt, becoming e this afternoon. seas
around 2 ft this morning, then 1 foot or less. wave detail: n
1 foot at 4 seconds and se 1 foot at 8 seconds, becoming n 1 foot
at 3 seconds and se 1 foot at 8 seconds. 
.tonight...s winds 5 to 10 kt. seas 1 foot or less. wave detail:
e 1 foot at 2 seconds and nw 1 foot at 3 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 3 seconds and se
1 foot at 8 seconds. patchy fog. showers likely. 
.tue night...e winds around 10 kt. seas around 2 ft. wave detail:
se 1 foot at 3 seconds and se 1 foot at 9 seconds. 
.wed...e winds 5 to 10 kt. seas around 2 ft. wave detail: e 2 ft
at 11 seconds and e 1 foot at 2 seconds. 
.wed night...se winds 5 to 10 kt. seas around 2 ft. wave detail:
e 2 ft at 10 seconds and se 1 foot at 2 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 311104
cwfbox
expires:202609010000;;660501

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

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


anz232-010000-
nantucket sound-
704 am edt mon aug 31 2026

.today...n winds 10 to 15 kt, becoming e 5 to 10 kt this
afternoon. seas around 2 ft. wave detail: nw 2 ft at 4 seconds
and se 1 foot at 8 seconds. 
.tonight...se winds 5 to 10 kt. seas 1 foot or less. wave detail:
e 1 foot at 2 seconds and sw 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: s 2 ft at 4 seconds and se 1 foot at
8 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 5 seconds and se 1 foot at
8 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 and se 2 ft at
11 seconds. 
.wed night...se winds around 10 kt. seas around 2 ft. wave
detail: se 2 ft at 5 seconds and se 2 ft at 10 seconds. 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 311104
cwfbox
expires:202609010000;;660502

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

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


anz233-010000-
vineyard sound-
704 am edt mon aug 31 2026

.today...n winds 5 to 10 kt, becoming e this afternoon. seas
around 2 ft. wave detail: w 2 ft at 5 seconds and n 1 foot at
2 seconds. 
.tonight...se winds 5 to 10 kt. seas 1 foot or less. wave detail:
se 1 foot at 2 seconds and sw 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: e 2 ft at 3 seconds and sw 1 foot at
5 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: e 2 ft at 3 seconds and s
1 foot at 4 seconds. a chance of showers. 
.wed...e winds 10 to 15 kt. seas around 2 ft. wave detail: e 2 ft
at 3 seconds and se 2 ft at 13 seconds. 
.wed night...se winds around 10 kt. seas around 2 ft. wave
detail: se 2 ft at 10 seconds and se 1 foot at 4 seconds. 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 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 311104
cwfbox
expires:202609010000;;660503

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

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


anz234-010000-
buzzards bay-
704 am edt mon aug 31 2026

.today...n winds 5 to 10 kt, becoming e this afternoon. seas
around 2 ft this morning, then 1 foot or less. wave detail: w
1 foot at 5 seconds and n 1 foot at 8 seconds, becoming ne 1 foot
at 2 seconds and sw 1 foot at 5 seconds. 
.tonight...s winds 5 to 10 kt. seas 1 foot or less. wave detail:
se 1 foot at 2 seconds and s 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 2 to
3 ft. wave detail: s 2 ft at 4 seconds and se 1 foot at
8 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 4 seconds
and se 1 foot at 8 seconds. a chance of showers. 
.wed...e winds 10 to 15 kt. seas around 2 ft. wave detail: se
1 foot at 4 seconds and se 1 foot at 17 seconds. 
.wed night...se winds around 10 kt. seas around 2 ft. wave
detail: se 1 foot at 3 seconds and se 1 foot at 12 seconds. 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 311104
cwfbox
expires:202609010000;;660504

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

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


anz235-010000-
rhode island sound-
704 am edt mon aug 31 2026

.today...ne winds 5 to 10 kt, becoming se this afternoon. seas
around 2 ft. wave detail: sw 2 ft at 5 seconds and n 1 foot at
2 seconds. 
.tonight...s winds 5 to 10 kt. seas around 2 ft. wave detail: s
1 foot 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...e winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft. wave detail: se 3 ft at 5 seconds and se 1 foot at
9 seconds. a chance of showers.
.wed...e winds 10 to 15 kt. seas 2 to 3 ft. wave detail: e 3 ft
at 5 seconds and se 3 ft at 11 seconds. 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 8 seconds and e 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 311104
cwfbox
expires:202609010000;;660507

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

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


anz236-010000-
narragansett bay-
704 am edt mon aug 31 2026

.today...n winds 5 to 10 kt, becoming se this afternoon. waves
around 2 ft this morning, then 1 foot or less.
.tonight...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...e winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. waves around 2 ft. a
chance of showers. 
.wed...e winds 5 to 10 kt. waves around 2 ft. 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 311104
cwfbox
expires:202609010000;;660495

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

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


anz250-010000-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
704 am edt mon aug 31 2026

.today...ne winds 5 to 10 kt, becoming e this afternoon. seas
around 2 ft. wave detail: n 1 foot at 3 seconds and se 1 foot at
8 seconds. 
.tonight...s winds 5 to 10 kt. seas around 2 ft. wave detail: s
1 foot at 2 seconds and ne 1 foot at 4 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 1 foot at 8 seconds. a chance of
showers. patchy fog in the morning. 
.tue night...e winds around 10 kt. seas 2 to 3 ft. wave detail:
se 2 ft at 4 seconds and se 1 foot at 9 seconds. 
.wed...se winds around 10 kt. seas 2 to 3 ft. wave detail: se
3 ft at 5 seconds and se 3 ft at 11 seconds. 
.wed night...se winds around 10 kt. seas 2 to 3 ft. wave detail:
se 3 ft at 6 seconds and se 3 ft at 10 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 311104
cwfbox
expires:202609010000;;660498

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

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


anz254-010000-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
704 am edt mon aug 31 2026

.today...n winds 5 to 10 kt, becoming ne this afternoon. seas
2 to 3 ft. wave detail: n 2 ft at 4 seconds and se 1 foot at
8 seconds. 
.tonight...se winds 5 to 10 kt. seas around 2 ft. wave detail: ne
1 foot at 4 seconds and sw 1 foot at 5 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: e 2 ft at 4 seconds and sw 1 foot
at 4 seconds. a chance of showers in the morning, then showers
likely in the afternoon. patchy fog in the afternoon. 
.tue night...e winds 10 to 15 kt. seas 2 to 3 ft. wave detail: se
3 ft at 4 seconds and se 3 ft at 12 seconds. 
.wed...e winds 10 to 15 kt. seas 2 to 4 ft. wave detail: se 4 ft
at 6 seconds. 
.wed night...se winds around 10 kt. seas 3 to 4 ft. wave detail:
se 4 ft at 9 seconds and s 2 ft at 5 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 311104
cwfbox
expires:202609010000;;660499

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

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


anz255-010000-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
704 am edt mon aug 31 2026

.today...n winds around 10 kt, becoming e this afternoon. seas
2 to 3 ft. wave detail: sw 3 ft at 5 seconds and n 1 foot at
3 seconds. 
.tonight...se winds 5 to 10 kt. seas around 2 ft. wave detail: sw
2 ft at 5 seconds and e 1 foot at 3 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 sw 1 foot at
5 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 and se 3 ft at
9 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: e 4 ft at 6 seconds. 
.wed night...se winds around 10 kt. seas 3 to 4 ft. wave detail:
s 4 ft at 7 seconds and ne 2 ft at 4 seconds. 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.

$$