fzus51 kbox 312004
cwfbox
expires:202609010900;;681417

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

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


anz231-010900-
cape cod bay-
404 pm edt mon aug 31 2026

.tonight...s winds 5 to 10 kt. seas 1 foot or less. wave detail:
n 1 foot at 3 seconds and se 1 foot at 3 seconds. 
.tue...se winds 5 to 10 kt. gusts up to 20 kt in the afternoon.
seas around 2 ft. wave detail: e 2 ft at 4 seconds and nw 1 foot
at 3 seconds. patchy fog. a chance of showers in the morning.
showers likely in the afternoon. 
.tue night...e winds around 10 kt. seas around 2 ft. wave detail:
n 1 foot at 3 seconds and se 1 foot at 3 seconds. a chance of
showers in the evening. 
.wed...e winds around 10 kt. seas around 2 ft. wave detail: se
2 ft at 6 seconds and se 1 foot at 3 seconds. 
.wed night...se winds 5 to 10 kt. seas around 2 ft. wave detail:
e 2 ft at 6 seconds and se 2 ft at 10 seconds. a chance of
showers after midnight. 
.thu...s winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: se 3 ft at 10 seconds and se 2 ft at
3 seconds. showers likely. a chance of tstms in the afternoon. 
.thu night...sw winds 5 to 10 kt, becoming w after midnight. seas
around 2 ft. a chance of showers. a chance of tstms in the
evening. 
.fri through sat night...n winds 10 to 15 kt with gusts up to
25 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 312004
cwfbox
expires:202609010900;;681421

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

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


anz232-010900-
nantucket sound-
404 pm edt mon aug 31 2026

.tonight...s winds 5 to 10 kt. seas 1 foot or less. wave detail:
e 1 foot at 3 seconds and n 1 foot at 3 seconds. 
.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 3 seconds and n 1 foot
at 4 seconds. patchy fog. a chance of showers in the morning,
then showers likely in the afternoon. vsby 1 to 3 nm in the
morning. 
.tue night...e winds around 15 kt with gusts up to 20 kt. seas
around 2 ft. wave detail: se 2 ft at 5 seconds and n 1 foot at
3 seconds. a chance of showers in the evening. 
.wed...e 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 se 2 ft at 5 seconds.
.wed night...se winds 10 to 15 kt. seas around 2 ft. wave detail:
se 2 ft at 6 seconds and se 2 ft at 10 seconds. a chance of
showers after midnight. 
.thu...s winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: se 3 ft at 10 seconds and se 2 ft at
4 seconds. showers likely. 
.thu night...sw winds 10 to 15 kt with gusts up to 20 kt,
becoming w after midnight. seas around 2 ft. a chance of showers.
.fri through sat night...n winds 15 to 20 kt with gusts up to
25 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 312004
cwfbox
expires:202609010900;;681422

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

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


anz233-010900-
vineyard sound-
404 pm edt mon aug 31 2026

.tonight...s winds 5 to 10 kt. seas around 2 ft this evening,
then 1 foot or less. wave detail: e 1 foot at 2 seconds and n
1 foot at 3 seconds, becoming e 1 foot at 3 seconds and n 1 foot
at 3 seconds. a slight chance of showers after midnight. 
.tue...se winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas around 2 ft. wave detail: se 1 foot at 4 seconds and n
1 foot at 4 seconds. patchy fog. showers likely. vsby 1 to 3 nm
in the morning. 
.tue night...e winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas around 2 ft. wave detail: s 2 ft at 7 seconds and e
1 foot at 3 seconds. patchy fog in the evening. showers likely in
the evening. 
.wed...e winds 10 to 15 kt. gusts up to 20 kt in the morning.
seas 2 to 3 ft. wave detail: se 2 ft at 7 seconds and e 1 foot at
3 seconds. 
.wed night...se winds around 10 kt. seas around 2 ft. wave
detail: se 2 ft at 7 seconds and se 1 foot at 4 seconds. a chance
of showers after midnight. 
.thu...s winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: se 3 ft at 10 seconds and se 2 ft at
4 seconds. showers likely. a chance of tstms in the afternoon. 
.thu night...sw winds 10 to 15 kt with gusts up to 20 kt,
becoming w after midnight. seas around 2 ft. a chance of showers.
a chance of tstms in the evening. 
.fri through sat night...n winds 15 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 312004
cwfbox
expires:202609010900;;681423

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

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


anz234-010900-
buzzards bay-
404 pm edt mon aug 31 2026

.tonight...s winds 5 to 10 kt. seas 1 foot or less. wave detail:
n 1 foot at 3 seconds and se 1 foot at 3 seconds. a slight chance
of showers after midnight. 
.tue...se winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas 2 to 3 ft. wave detail: se 1 foot at 4 seconds and n 1 foot
at 4 seconds. patchy fog. showers likely. vsby 1 to 3 nm. 
.tue night...e winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas around 2 ft. wave detail: n 1 foot at 3 seconds and
se 1 foot at 4 seconds. patchy fog in the evening. showers likely
in the evening. 
.wed...e winds 10 to 15 kt. seas around 2 ft. wave detail: se
1 foot at 4 seconds and se 1 foot at 8 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 after midnight. 
.thu...s winds 10 to 15 kt with gusts up to 25 kt. seas 2 to
3 ft. wave detail: se 3 ft at 10 seconds and se 2 ft at
4 seconds. showers likely. a chance of tstms in the afternoon. 
.thu night...sw winds 10 to 15 kt with gusts up to 20 kt,
becoming w 5 to 10 kt after midnight. seas around 2 ft. a chance
of showers. a chance of tstms in the evening. 
.fri through sat night...n winds 10 to 15 kt with gusts up to
25 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 312004
cwfbox
expires:202609010900;;681424

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

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


anz235-010900-
rhode island sound-
404 pm edt mon aug 31 2026

.tonight...s winds 5 to 10 kt. seas around 2 ft. wave detail: se
2 ft at 4 seconds and n 1 foot at 3 seconds. a chance of showers
after midnight. 
.tue...se winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas 2 to 3 ft. wave detail: se 2 ft at 4 seconds and n 1 foot at
4 seconds. patchy fog. showers likely. vsby 1 to 3 nm in the
morning. 
.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
8 seconds. patchy fog in the evening. showers likely in the
evening. 
.wed...e winds 10 to 15 kt. gusts up to 20 kt in the morning.
seas 2 to 4 ft. wave detail: se 4 ft at 6 seconds and ne 1 foot
at 3 seconds. 
.wed night...se winds 10 to 15 kt. seas 2 to 3 ft. wave detail:
se 3 ft at 6 seconds and se 2 ft at 10 seconds. a chance of
showers after midnight. 
.thu...s 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 3 ft at
10 seconds. showers likely. a chance of tstms in the afternoon. 
.thu night...w winds 10 to 15 kt. seas 2 to 3 ft. a chance of
showers. a chance of tstms in the evening. 
.fri through sat night...n winds 15 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 312004
cwfbox
expires:202609010900;;681427

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

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


anz236-010900-
narragansett bay-
404 pm edt mon aug 31 2026

.tonight...s winds 5 to 10 kt. waves 1 foot or less. 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. waves around 2 ft. patchy fog.
showers. vsby 1 to 3 nm in the morning.
.tue night...e winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. waves around 2 ft. patchy fog in the evening. showers
likely in the evening. 
.wed...e winds 5 to 10 kt. waves around 2 ft. 
.wed night...se winds 5 to 10 kt. waves around 2 ft. showers
likely after midnight. 
.thu...s winds 10 to 15 kt with gusts up to 20 kt. waves around
2 ft. showers likely. a chance of tstms in the afternoon. 
.thu night...w winds 5 to 10 kt. waves around 2 ft. a chance of
showers and tstms in the evening. 
.fri through sat night...n winds 10 to 15 kt with gusts up to
20 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 312004
cwfbox
expires:202609010900;;681415

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

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


anz250-010900-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
404 pm edt mon aug 31 2026

.tonight...s winds 5 to 10 kt. seas around 2 ft. wave detail: s
1 foot at 3 seconds and n 1 foot at 4 seconds. 
.tue...se winds 5 to 10 kt. seas around 2 ft. wave detail: se
2 ft at 3 seconds and w 1 foot at 2 seconds. patchy fog. a chance
of showers in the morning. showers likely in the afternoon. 
.tue night...se winds around 10 kt. seas around 2 ft. wave
detail: se 2 ft at 5 seconds and se 2 ft at 9 seconds. a chance
of showers in the evening. 
.wed...e winds around 10 kt. seas 2 to 3 ft. wave detail: se 3 ft
at 5 seconds and se 2 ft at 11 seconds. 
.wed night...se winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas 2 to 3 ft. wave detail: se 3 ft at 5 seconds and
se 3 ft at 10 seconds. a chance of showers after midnight. 
.thu and thu night...nw 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
3 seconds. showers with a chance of tstms. 
.fri through sat...n winds 10 to 15 kt with gusts up to 25 kt.
seas 2 to 4 ft. 
.sat night...n winds 10 to 15 kt with gusts up to 25 kt. seas
3 to 5 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 312004
cwfbox
expires:202609010900;;681418

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

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


anz254-010900-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
404 pm edt mon aug 31 2026

.tonight...s winds 5 to 10 kt. seas around 2 ft. wave detail: n
1 foot at 4 seconds and s 1 foot at 5 seconds. 
.tue...se 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: se
2 ft at 4 seconds and nw 1 foot at 3 seconds. a chance of
showers. patchy fog in the afternoon. 
.tue night...e winds 10 to 15 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
in the evening. 
.wed...e winds 10 to 15 kt. seas 2 to 4 ft. wave detail: se 3 ft
at 6 seconds and se 2 ft at 11 seconds. 
.wed night...se winds around 10 kt. seas 2 to 4 ft. wave detail:
se 3 ft at 6 seconds and se 2 ft at 10 seconds. a chance of
showers after midnight. 
.thu...s winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: se 3 ft at 7 seconds and se 3 ft at
10 seconds. showers likely. a chance of tstms in the afternoon. 
.thu night...sw winds 10 to 15 kt with gusts up to 20 kt,
becoming w after midnight. seas 2 to 3 ft. a chance of showers. a
chance of tstms in the evening. 
.fri and fri night...nw winds 5 to 10 kt, increasing to 10 to
15 kt with gusts up to 20 kt. seas 2 to 4 ft. 
.sat and sat night...n winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 5 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 312004
cwfbox
expires:202609010900;;681419

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

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


anz255-010900-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
404 pm edt mon aug 31 2026

.tonight...se winds 5 to 10 kt. seas around 2 ft. wave detail: sw
2 ft at 5 seconds and ne 1 foot at 3 seconds. a slight chance of
showers after midnight. 
.tue...se winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas 2 to 3 ft. wave detail: se 3 ft at 4 seconds and n 1 foot at
4 seconds. patchy fog. showers likely. 
.tue night...e winds around 15 kt with gusts up to 20 kt. seas
2 to 4 ft. wave detail: se 4 ft at 8 seconds and se 3 ft at
5 seconds. a chance of showers in the evening. 
.wed...e winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
4 ft. wave detail: e 4 ft at 5 seconds and se 2 ft at 11 seconds.
.wed night...se winds 10 to 15 kt. seas 3 to 4 ft. wave detail:
ne 3 ft at 4 seconds and se 3 ft at 6 seconds. a chance of
showers after midnight. 
.thu...s winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
4 ft. wave detail: se 4 ft at 10 seconds and s 3 ft at 6 seconds.
showers likely. 
.thu night...w winds 10 to 15 kt. seas 2 to 4 ft. a chance of
showers. 
.fri through sat...n winds 15 to 20 kt. seas 2 to 4 ft. 
.sat night...n winds 15 to 20 kt. seas 3 to 5 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.

$$