fzus51 kbox 161704
cwfbox
expires:202509170600;;086934

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt tue sep 16 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz231-170600-
cape cod bay-
103 pm edt tue sep 16 2025

.this afternoon...ne winds around 10 kt. seas around 2 ft. wave
detail: e 2 ft at 8 seconds and e 1 foot at 2 seconds. 
.tonight...e winds 5 to 10 kt. seas around 2 ft. wave detail: e
2 ft at 8 seconds and e 1 foot at 2 seconds. 
.wed...e winds 5 to 10 kt. seas around 2 ft. wave detail: e 2 ft
at 8 seconds and e 1 foot at 2 seconds. 
.wed night...se winds 5 to 10 kt. seas around 2 ft. wave detail:
se 2 ft at 7 seconds and e 1 foot at 2 seconds. showers likely,
mainly in the evening. 
.thu...e winds 5 to 10 kt. seas around 2 ft in the morning, then
1 foot or less. wave detail: se 2 ft at 7 seconds and e 1 foot at
2 seconds, becoming e 1 foot at 2 seconds and se 1 foot at
7 seconds. a chance of showers.
.thu night...s winds 5 to 10 kt, becoming w after midnight. seas
1 foot or less. wave detail: se 1 foot at 3 seconds and se 1 foot
at 8 seconds. 
.fri through sat night...se 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 161704
cwfbox
expires:202509170600;;086938

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt tue sep 16 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz232-170600-
nantucket sound-
103 pm edt tue sep 16 2025

.this afternoon...ne winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. wave detail: e 2 ft at 3 seconds and e 1 foot
at 8 seconds. 
.tonight...e winds 10 to 15 kt. seas around 2 ft. wave detail: e
2 ft at 3 seconds and e 2 ft at 8 seconds. 
.wed...e winds 10 to 15 kt. seas 2 to 3 ft. wave detail: e 2 ft
at 3 seconds and e 2 ft at 8 seconds. a chance of showers in the
afternoon with vsby 1 to 3 nm. 
.wed night...e winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. seas around 2 ft. wave detail: e 2 ft at 3 seconds and
se 2 ft at 7 seconds. showers likely, mainly in the evening. 
.thu...e winds 5 to 10 kt. seas around 2 ft. wave detail: se 2 ft
at 7 seconds and e 1 foot at 3 seconds. a chance of showers. vsby
1 to 3 nm. 
.thu night...sw winds around 10 kt, becoming w after midnight.
seas around 2 ft. wave detail: e 1 foot at 3 seconds and s 1 foot
at 4 seconds. patchy fog. vsby 1 to 3 nm. 
.fri and fri night...n winds 10 to 15 kt, becoming ne 15 to
20 kt. seas 2 to 3 ft. patchy dense fog. vsby 1 nm or less. 
.sat and sat night...ne winds 15 to 20 kt, becoming e 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 161704
cwfbox
expires:202509170600;;086939

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt tue sep 16 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz233-170600-
vineyard sound-
103 pm edt tue sep 16 2025

.this afternoon...e winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. wave detail: se 2 ft at 8 seconds and e 1 foot
at 3 seconds. 
.tonight...e winds 10 to 15 kt. seas around 2 ft. wave detail: se
2 ft at 8 seconds and e 1 foot at 3 seconds. 
.wed...e winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas 2 to 3 ft. wave detail: se 2 ft at 8 seconds and e 1 foot at
3 seconds. a chance of showers in the afternoon. 
.wed night...e winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. seas around 2 ft. wave detail: se 2 ft at 7 seconds and
e 1 foot at 3 seconds. showers likely. 
.thu...e winds 5 to 10 kt, becoming se in the afternoon. seas
around 2 ft. wave detail: se 2 ft at 7 seconds and e 1 foot at
2 seconds. a chance of showers. 
.thu night...sw winds 5 to 10 kt, becoming w after midnight. seas
around 2 ft. wave detail: se 2 ft at 8 seconds and e 1 foot at
3 seconds. 
.fri through sat night...e winds 15 to 20 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 161704
cwfbox
expires:202509170600;;086940

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt tue sep 16 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz234-170600-
buzzards bay-
103 pm edt tue sep 16 2025

.this afternoon...e winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. wave detail: se 2 ft at 8 seconds and e 1 foot
at 3 seconds. 
.tonight...e winds 10 to 15 kt. seas around 2 ft. wave detail: se
2 ft at 8 seconds and e 1 foot at 3 seconds. 
.wed...e winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas around 2 ft. wave detail: se 2 ft at 8 seconds and e 1 foot
at 2 seconds. a chance of showers in the afternoon. 
.wed night...e winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. seas around 2 ft. wave detail: se 2 ft at 7 seconds and
e 1 foot at 3 seconds. showers likely, mainly in the evening. 
.thu...e winds 5 to 10 kt, becoming se in the afternoon. seas
around 2 ft. wave detail: se 2 ft at 7 seconds and e 1 foot at
2 seconds. a chance of showers. 
.thu night...sw winds 5 to 10 kt, becoming w after midnight. seas
around 2 ft. wave detail: se 2 ft at 8 seconds and e 1 foot at
3 seconds. 
.fri through sat night...se winds 10 to 15 kt with gusts up to
20 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 161704
cwfbox
expires:202509170600;;086941

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt tue sep 16 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz235-170600-
rhode island sound-
103 pm edt tue sep 16 2025

.this afternoon...e winds around 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: se 3 ft at 8 seconds and ne 1 foot
at 3 seconds. 
.tonight...e winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
4 ft. wave detail: se 4 ft at 8 seconds and ne 1 foot at
3 seconds. 
.wed...e winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
4 ft. wave detail: se 4 ft at 8 seconds and ne 1 foot at
3 seconds. a chance of showers in the afternoon. 
.wed night...e winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas 2 to 4 ft. wave detail: se 4 ft at 7 seconds and ne
1 foot at 3 seconds. showers likely. 
.thu...ne winds around 10 kt, becoming se in the afternoon. seas
2 to 3 ft. wave detail: s 3 ft at 7 seconds and ne 1 foot at
3 seconds. a chance of showers.
.thu night...sw winds 5 to 10 kt, becoming w after midnight. seas
2 to 3 ft. wave detail: se 3 ft at 8 seconds and sw 2 ft at
5 seconds. 
.fri through sat night...e winds 15 to 20 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 161704
cwfbox
expires:202509170600;;086944

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt tue sep 16 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz236-170600-
narragansett bay-
103 pm edt tue sep 16 2025

.this afternoon...e winds 10 to 15 kt with gusts up to 20 kt.
waves around 2 ft. 
.tonight...e winds 5 to 10 kt. waves around 2 ft. 
.wed...e winds 5 to 10 kt. waves around 2 ft. a chance of showers
in the afternoon. 
.wed night...e winds 5 to 10 kt. waves around 2 ft. showers
likely, mainly in the evening. 
.thu...ne winds 5 to 10 kt, becoming se in the afternoon. waves
around 2 ft. a chance of showers. 
.thu night...sw winds 5 to 10 kt, becoming w after midnight.
waves around 2 ft. 
.fri through sat night...se winds 10 to 15 kt with gusts up to
20 kt. waves 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 161704
cwfbox
expires:202509170600;;086932

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt tue sep 16 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz250-170600-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
103 pm edt tue sep 16 2025

.this afternoon...ne winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: e 3 ft at 8 seconds. 
.tonight...e winds around 5 kt. seas 2 to 3 ft. wave detail: e
3 ft at 8 seconds. 
.wed...e winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se 2 ft
at 8 seconds. patchy fog in the afternoon with vsby 1 nm or less.
.wed night...se winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se
3 ft at 8 seconds. patchy fog. a chance of showers. vsby 1 nm or
less. 
.thu...s winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se 3 ft
at 8 seconds. patchy dense fog. a chance of showers in the
morning. vsby 1 nm or less. 
.thu night...s winds around 10 kt, becoming w after midnight.
seas 2 to 3 ft. wave detail: se 3 ft at 8 seconds and s 1 foot at
2 seconds. patchy dense fog. vsby 1 nm or less. 
.fri...n winds around 10 kt. seas 2 to 3 ft. widespread dense
fog. vsby 1 nm or less. 
.fri night and sat...ne winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 5 ft. 
.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 161704
cwfbox
expires:202509170600;;086935

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt tue sep 16 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz254-170600-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
103 pm edt tue sep 16 2025

.this afternoon...ne winds 10 to 15 kt. seas 2 to 3 ft. wave
detail: e 3 ft at 8 seconds and ne 1 foot at 4 seconds. 
.tonight...e winds around 10 kt. seas 2 to 3 ft. wave detail: e
3 ft at 8 seconds and e 1 foot at 2 seconds. 
.wed...e winds 10 to 15 kt. seas 2 to 3 ft. wave detail: e 3 ft
at 8 seconds and s 1 foot at 7 seconds. patchy fog in the
afternoon with vsby 1 nm or less. 
.wed night...e winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se
3 ft at 7 seconds. showers likely, mainly in the evening. patchy
fog in the evening. vsby 1 to 3 nm. 
.thu...se winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se 3 ft
at 7 seconds. patchy fog. a chance of showers. vsby 1 nm or less.
.thu night...s winds 5 to 10 kt, becoming w after midnight. seas
2 to 3 ft. wave detail: se 3 ft at 8 seconds and s 1 foot at
5 seconds. patchy dense fog. vsby 1 nm or less. 
.fri...nw winds around 10 kt. seas 2 to 3 ft. patchy dense fog.
vsby 1 nm or less. 
.fri night...n winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 4 ft. widespread dense fog. vsby 1 nm or less. 
.sat and sat night...ne winds 15 to 20 kt, becoming e 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 161704
cwfbox
expires:202509170600;;086936

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt tue sep 16 2025

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz255-170600-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
103 pm edt tue sep 16 2025

.this afternoon...ne winds around 15 kt with gusts up to 20 kt.
seas 3 to 4 ft. wave detail: e 4 ft at 8 seconds and ne 2 ft at
4 seconds. 
.tonight...e winds around 15 kt with gusts up to 20 kt. seas 3 to
4 ft. wave detail: e 4 ft at 8 seconds and ne 1 foot at
3 seconds. 
.wed...e winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
4 ft. wave detail: e 4 ft at 8 seconds and e 1 foot at 3 seconds.
a chance of showers in the afternoon. 
.wed night...e winds 10 to 15 kt. seas 2 to 4 ft. wave detail: se
4 ft at 7 seconds and e 1 foot at 3 seconds. showers likely,
mainly in the evening. patchy fog after midnight with vsby 1 nm
or less. 
.thu...e winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se 3 ft
at 7 seconds. patchy fog. a chance of showers. vsby 1 nm or less.
.thu night...s winds 5 to 10 kt, becoming w after midnight. seas
2 to 3 ft. wave detail: se 3 ft at 8 seconds and sw 2 ft at
5 seconds. patchy dense fog in the evening. widespread dense fog
after midnight. vsby 1 nm or less. 
.fri and fri night...nw winds 10 to 15 kt, becoming ne 15 to
20 kt. seas 2 to 4 ft. widespread dense fog. vsby 1 nm or less. 
.sat and sat night...ne winds 15 to 20 kt, becoming e 10 to
15 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.

$$