fzus51 kbox 092003
cwfbox
expires:202510100900;;394332

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 pm edt thu oct 9 2025

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


anz231-100900-
cape cod bay-
403 pm edt thu oct 9 2025

...storm watch in effect from sunday afternoon through monday
evening...

.tonight...n winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. seas 2 to 4 ft. wave
detail: n 4 ft at 6 seconds and se 1 foot at 9 seconds. 
.fri...n winds around 5 kt, becoming s in the afternoon. seas
around 2 ft. wave detail: n 2 ft at 5 seconds and se 1 foot at
9 seconds. 
.fri night...sw winds 5 to 10 kt. seas around 2 ft in the
evening, then 1 foot or less. wave detail: ne 2 ft at 5 seconds
and w 1 foot at 3 seconds, becoming sw 1 foot at 3 seconds and ne
1 foot at 5 seconds. 
.sat...s winds 5 to 10 kt. seas 1 foot or less. wave detail: sw
1 foot at 3 seconds and ne 1 foot at 5 seconds. 
.sat night...se winds 5 to 10 kt, becoming e 10 to 15 kt after
midnight. seas 1 foot or less, then around 2 ft after midnight.
wave detail: s 1 foot at 2 seconds and se 1 foot at 10 seconds,
becoming e 1 foot at 2 seconds and s 1 foot at 2 seconds. a
chance of showers after midnight. 
.sun...e winds 15 to 20 kt, increasing to 25 to 30 kt in the
afternoon. seas 2 to 4 ft, building to 4 to 6 ft in the
afternoon. wave detail: e 3 ft at 3 seconds and se 1 foot at
11 seconds, becoming e 4 ft at 4 seconds and se 2 ft at
11 seconds. a chance of showers in the morning, then showers
likely in the afternoon with vsby 1 to 3 nm. 
.sun night...e winds 25 to 30 kt with gusts up to 45 kt. seas
5 to 7 ft. showers. vsby 1 to 3 nm. 
.mon...e winds 30 to 35 kt with gusts up to 50 kt. seas 6 to
9 ft. showers. vsby 1 to 3 nm. 
.mon night...ne winds 25 to 30 kt with gusts up to 40 kt. seas
5 to 8 ft. showers. vsby 1 to 3 nm. 
.tue and tue night...ne winds 20 to 25 kt, becoming n 15 to
20 kt. gusts up to 30 kt. seas 4 to 6 ft. showers likely. vsby
1 to 3 nm.  

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 092003
cwfbox
expires:202510100900;;394336

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 pm edt thu oct 9 2025

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


anz232-100900-
nantucket sound-
403 pm edt thu oct 9 2025

...storm watch in effect from sunday afternoon through monday
evening...

.tonight...n winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. seas 2 to 3 ft. wave detail: n 3 ft at 5 seconds and se
1 foot at 8 seconds. 
.fri...ne winds 5 to 10 kt, becoming se in the afternoon. seas
around 2 ft. wave detail: n 1 foot at 4 seconds and se 1 foot at
9 seconds. 
.fri night...sw winds 5 to 10 kt. seas around 2 ft in the
evening, then 1 foot or less. wave detail: s 1 foot at 2 seconds
and ne 1 foot at 5 seconds, becoming sw 1 foot at 2 seconds and e
1 foot at 5 seconds. 
.sat...s winds 5 to 10 kt, becoming se in the afternoon. seas
1 foot or less. wave detail: s 1 foot at 3 seconds and e 1 foot
at 5 seconds. 
.sat night...e winds 10 to 15 kt, increasing to 20 to 25 kt after
midnight. seas 2 to 3 ft. wave detail: se 3 ft at 4 seconds and
se 1 foot at 10 seconds. a chance of showers after midnight. 
.sun...e winds 20 to 25 kt, increasing to 25 to 35 kt in the
afternoon. seas 3 to 4 ft, building to 4 to 6 ft in the
afternoon. wave detail: e 4 ft at 4 seconds and se 1 foot at
10 seconds, becoming e 6 ft at 5 seconds and se 2 ft at
12 seconds. a chance of showers in the morning, then showers
likely in the afternoon with vsby 1 to 3 nm. 
.sun night...e winds 30 to 40 kt with gusts up to 45 kt. seas
5 to 7 ft, building to 6 to 9 ft after midnight. showers. vsby
1 to 3 nm. 
.mon...e winds 30 to 40 kt with gusts up to 45 kt. seas 7 to
10 ft. showers. vsby 1 to 3 nm. 
.mon night...e winds 25 to 35 kt with gusts up to 40 kt. seas
6 to 9 ft. showers. vsby 1 to 3 nm. 
.tue and tue night...ne winds 20 to 25 kt with gusts up to 30 kt.
seas 5 to 7 ft. showers likely. vsby 1 to 3 nm.  

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 092003
cwfbox
expires:202510100900;;394337

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 pm edt thu oct 9 2025

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


anz233-100900-
vineyard sound-
403 pm edt thu oct 9 2025

...storm watch in effect from sunday afternoon through monday
evening...

.tonight...n winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. seas around 2 ft. wave detail: ne 2 ft at 3 seconds and
w 1 foot at 5 seconds. 
.fri...ne winds 5 to 10 kt, becoming s in the afternoon. seas
1 foot or less. wave detail: ne 1 foot at 3 seconds and nw 1 foot
at 4 seconds. 
.fri night...s winds 5 to 10 kt. seas 1 foot or less. wave
detail: sw 1 foot at 2 seconds and e 1 foot at 4 seconds. 
.sat...se winds 5 to 10 kt. seas 1 foot or less. wave detail: sw
1 foot at 3 seconds and e 1 foot at 5 seconds. 
.sat night...e winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. seas 2 to 3 ft. wave detail: e 2 ft at 3 seconds and se
2 ft at 10 seconds. a chance of showers after midnight. 
.sun...e winds 20 to 25 kt, becoming ne 25 to 30 kt in the
afternoon. seas 2 to 4 ft, building to 4 to 6 ft in the
afternoon. wave detail: e 3 ft at 4 seconds and se 3 ft at
10 seconds, becoming ne 4 ft at 5 seconds and se 4 ft at
12 seconds. a chance of showers in the morning, then showers
likely in the afternoon. vsby 1 to 3 nm. 
.sun night...ne winds 30 to 35 kt with gusts up to 45 kt. seas
6 to 9 ft. showers. vsby 1 to 3 nm. 
.mon...e winds 30 to 35 kt with gusts up to 45 kt. seas 7 to
10 ft. showers. vsby 1 to 3 nm. 
.mon night...ne winds 25 to 30 kt with gusts up to 35 kt. seas
6 to 9 ft. showers. vsby 1 to 3 nm. 
.tue...ne winds 20 to 25 kt. seas 4 to 6 ft. showers likely. vsby
1 to 3 nm. 
.tue night...n winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. showers likely.  

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 092003
cwfbox
expires:202510100900;;394338

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 pm edt thu oct 9 2025

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


anz234-100900-
buzzards bay-
403 pm edt thu oct 9 2025

...storm watch in effect from sunday afternoon through monday
evening...

.tonight...n winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. seas around 2 ft this evening, then 1 foot or less.
wave detail: ne 2 ft at 3 seconds and w 1 foot at 5 seconds,
becoming n 1 foot at 4 seconds and se 1 foot at 8 seconds. 
.fri...n winds 5 to 10 kt, becoming s in the afternoon. seas
1 foot or less. wave detail: n 1 foot at 3 seconds and se 1 foot
at 8 seconds. 
.fri night...sw winds 5 to 10 kt. seas 1 foot or less. wave
detail: sw 1 foot at 2 seconds and e 1 foot at 4 seconds. 
.sat...se winds 5 to 10 kt. seas 1 foot or less. wave detail: sw
1 foot at 3 seconds and e 1 foot at 4 seconds. 
.sat night...e winds around 10 kt, increasing to 15 to 20 kt
after midnight. seas 1 foot or less, then 2 to 3 ft after
midnight. wave detail: se 1 foot at 3 seconds and se 1 foot at
10 seconds, becoming e 2 ft at 3 seconds and se 1 foot at
10 seconds. a chance of showers after midnight. 
.sun...ne winds 20 to 25 kt, increasing to 25 to 30 kt in the
afternoon. seas 2 to 4 ft, building to 4 to 6 ft in the
afternoon. wave detail: e 3 ft at 4 seconds and se 2 ft at
10 seconds, becoming ne 4 ft at 4 seconds and se 3 ft at
12 seconds. a chance of showers in the morning, then showers
likely in the afternoon with vsby 1 to 3 nm. 
.sun night...ne winds 30 to 35 kt with gusts up to 45 kt. seas
4 to 6 ft. showers. vsby 1 to 3 nm. 
.mon...e winds 30 to 35 kt with gusts up to 45 kt. seas 5 to
7 ft. showers. vsby 1 to 3 nm. 
.mon night...ne winds 25 to 30 kt with gusts up to 40 kt. seas
4 to 6 ft. showers. vsby 1 to 3 nm. 
.tue...ne winds 20 to 25 kt with gusts up to 30 kt. seas 3 to
5 ft. showers likely. vsby 1 to 3 nm.
.tue night...n winds 15 to 20 kt with gusts up to 25 kt. seas
4 to 6 ft. showers likely.  

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 092003
cwfbox
expires:202510100900;;394339

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 pm edt thu oct 9 2025

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


anz235-100900-
rhode island sound-
403 pm edt thu oct 9 2025

...storm watch in effect from sunday afternoon through monday
evening...

.tonight...n winds 10 to 15 kt. seas 2 to 3 ft. wave detail: ne
2 ft at 4 seconds and se 2 ft at 8 seconds. 
.fri...ne winds 5 to 10 kt, becoming s in the afternoon. seas
around 2 ft. wave detail: n 1 foot at 4 seconds and se 1 foot at
8 seconds. 
.fri night...s winds 5 to 10 kt. seas 1 foot or less, then around
2 ft after midnight. wave detail: se 1 foot at 3 seconds and se
1 foot at 9 seconds, becoming s 1 foot at 3 seconds and e 1 foot
at 4 seconds. 
.sat...se winds 5 to 10 kt. seas around 2 ft. wave detail: s 2 ft
at 4 seconds and se 1 foot at 9 seconds. 
.sat night...e winds 10 to 15 kt, increasing to 20 to 25 kt after
midnight. seas 2 to 4 ft. wave detail: e 4 ft at 5 seconds and se
3 ft at 11 seconds. a chance of showers after midnight. 
.sun...ne winds 25 to 35 kt. seas 4 to 6 ft, building to 6 to
9 ft in the afternoon. wave detail: e 6 ft at 6 seconds and se
5 ft at 13 seconds, becoming se 9 ft at 9 seconds and e 5 ft at
5 seconds. a chance of showers in the morning, then showers
likely in the afternoon. vsby 1 to 3 nm. 
.sun night...ne winds 30 to 40 kt with gusts up to 45 kt. seas
8 to 11 ft, building to 9 to 13 ft after midnight. showers. vsby
1 to 3 nm. 
.mon...e winds 30 to 40 kt with gusts up to 45 kt. seas 9 to
13 ft. showers. vsby 1 to 3 nm. 
.mon night...ne winds 25 to 30 kt with gusts up to 35 kt. seas
9 to 12 ft. showers. vsby 1 to 3 nm. 
.tue and tue night...ne winds 20 to 25 kt, becoming n 15 to
20 kt. gusts up to 30 kt. seas 5 to 8 ft. showers likely. vsby
1 to 3 nm.  

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 092003
cwfbox
expires:202510100900;;394342

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 pm edt thu oct 9 2025

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


anz236-100900-
narragansett bay-
403 pm edt thu oct 9 2025

.tonight...n winds 5 to 10 kt. waves around 2 ft. 
.fri...ne winds around 5 kt, becoming s in the afternoon. waves
1 foot or less. 
.fri night...sw winds 5 to 10 kt. waves 1 foot or less. 
.sat...e winds around 5 kt, becoming se in the afternoon. waves
1 foot or less. 
.sat night...e winds 5 to 10 kt, becoming ne 10 to 15 kt with
gusts up to 20 kt after midnight. waves around 2 ft. a chance of
showers after midnight. 
.sun...ne winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. gusts up to 30 kt. waves 2 to 3 ft. at the bay
entrance, waves 2 to 4 ft, building to 4 to 6 ft in the
afternoon. a chance of showers in the morning, then showers
likely in the afternoon with vsby 1 to 3 nm. 
.sun night...ne winds 25 to 30 kt with gusts up to 40 kt. waves
around 3 ft, except 5 to 8 ft at the bay entrance. showers. vsby
1 to 3 nm. 
.mon through tue...n winds 25 to 30 kt with gusts up to 40 kt.
waves 2 to 3 ft, except 5 to 7 ft at the bay entrance. showers.
vsby 1 to 3 nm. 
.tue night...n winds 10 to 15 kt with gusts up to 25 kt. waves
2 to 3 ft, except 4 to 6 ft at the bay entrance. a chance of
showers.  

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 092003
cwfbox
expires:202510100900;;394330

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 pm edt thu oct 9 2025

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


anz250-100900-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
403 pm edt thu oct 9 2025

...storm watch in effect from sunday afternoon through monday
evening...

.tonight...n winds 10 to 15 kt. gusts up to 20 kt this evening.
seas 3 to 5 ft. wave detail: n 4 ft at 6 seconds and se 2 ft at
8 seconds. 
.fri...n winds around 5 kt, becoming sw in the afternoon. seas
2 to 3 ft. wave detail: ne 2 ft at 5 seconds and se 1 foot at
9 seconds. 
.fri night...sw winds 10 to 15 kt with gusts up to 20 kt. seas
around 2 ft. wave detail: sw 2 ft at 3 seconds and ne 2 ft at
5 seconds. 
.sat...sw winds 5 to 10 kt, becoming s in the afternoon. seas
around 2 ft. wave detail: sw 2 ft at 3 seconds and e 1 foot at
4 seconds. 
.sat night...se winds 5 to 10 kt, becoming e 10 to 15 kt after
midnight. seas around 2 ft. wave detail: se 2 ft at 3 seconds and
sw 1 foot at 3 seconds. 
.sun...e winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. gusts up to 30 kt. seas 3 to 5 ft. wave detail: e 5 ft
at 6 seconds and se 1 foot at 12 seconds. a chance of showers in
the morning, then showers likely in the afternoon with vsby 1 to
3 nm. 
.sun night...e winds 25 to 30 kt. gusts up to 45 kt after
midnight. seas 5 to 8 ft, building to 9 to 12 ft after midnight.
showers. vsby 1 to 3 nm. 
.mon and mon night...e winds 30 to 35 kt, becoming ne 25 to
35 kt. gusts up to 50 kt. seas 12 to 16 ft. showers. vsby 1 to
3 nm. 
.tue...ne winds 20 to 25 kt with gusts up to 30 kt. seas 10 to
14 ft. showers likely. vsby 1 to 3 nm. 
.tue night...ne winds 15 to 20 kt with gusts up to 25 kt. seas
8 to 11 ft. showers likely. vsby 1 to 3 nm.  

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 092003
cwfbox
expires:202510100900;;394333

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 pm edt thu oct 9 2025

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


anz254-100900-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
403 pm edt thu oct 9 2025

...storm watch in effect from sunday afternoon through monday
evening...

.tonight...n winds 15 to 20 kt with gusts up to 25 kt,
diminishing to 10 to 15 kt after midnight. seas 4 to 6 ft,
subsiding to 3 to 4 ft after midnight. wave detail: n 5 ft at
7 seconds and se 2 ft at 8 seconds, becoming n 4 ft at 6 seconds
and se 2 ft at 8 seconds. 
.fri...ne winds 5 to 10 kt, becoming se in the afternoon. seas
2 to 4 ft. wave detail: n 3 ft at 5 seconds and se 1 foot at
8 seconds. 
.fri night...sw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: ne
2 ft at 6 seconds and se 1 foot at 10 seconds. 
.sat...s winds 5 to 10 kt. seas around 2 ft. wave detail: sw
1 foot at 3 seconds and ne 1 foot at 5 seconds. 
.sat night...e winds 5 to 10 kt, increasing to 15 to 20 kt after
midnight. seas 2 to 3 ft. wave detail: e 3 ft at 4 seconds and se
2 ft at 11 seconds. 
.sun...e winds 20 to 25 kt, increasing to 25 to 30 kt in the
afternoon. seas 3 to 5 ft, building to 5 to 7 ft in the
afternoon. wave detail: e 5 ft at 5 seconds and se 2 ft at
12 seconds, becoming e 7 ft at 6 seconds and se 7 ft at
12 seconds. a chance of showers in the morning, then showers
likely in the afternoon with vsby 1 to 3 nm. 
.sun night...e winds 25 to 35 kt, becoming 30 to 35 kt after
midnight. gusts up to 45 kt. seas 7 to 10 ft, building to 10 to
14 ft after midnight. s and e of nantucket, seas 10 to 14 ft,
building to 13 to 17 ft after midnight. showers. vsby 1 to 3 nm. 
.mon and mon night...e winds 30 to 35 kt, diminishing to 25 to
30 kt. gusts up to 45 kt. seas 12 to 16 ft. showers. vsby 1 to
3 nm. 
.tue...ne winds 20 to 25 kt with gusts up to 30 kt. seas 10 to
14 ft. showers likely. vsby 1 to 3 nm. 
.tue night...ne winds 15 to 20 kt. seas 8 to 11 ft. showers
likely.  

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 092003
cwfbox
expires:202510100900;;394334

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 pm edt thu oct 9 2025

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


anz255-100900-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
403 pm edt thu oct 9 2025

...storm watch in effect from sunday afternoon through monday
evening...

.tonight...n winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. seas 3 to 5 ft. wave detail: n 4 ft at 5 seconds and se
2 ft at 8 seconds. 
.fri...ne winds 5 to 10 kt, becoming se in the afternoon. seas
2 to 3 ft. wave detail: n 2 ft at 4 seconds and se 1 foot at
8 seconds. 
.fri night...s winds 5 to 10 kt. seas around 2 ft. wave detail: e
2 ft at 5 seconds and sw 1 foot at 2 seconds. 
.sat...se winds 5 to 10 kt, becoming e 10 to 15 kt in the
afternoon. seas around 2 ft. wave detail: e 2 ft at 5 seconds and
sw 1 foot at 3 seconds. 
.sat night...e winds 10 to 15 kt, increasing to 20 to 25 kt after
midnight. seas 2 to 4 ft. wave detail: e 4 ft at 5 seconds and se
2 ft at 10 seconds. a chance of showers after midnight. 
.sun...e winds 25 to 35 kt. seas 5 to 7 ft, building to 6 to 9 ft
in the afternoon. wave detail: e 7 ft at 6 seconds and se 4 ft at
10 seconds, becoming e 8 ft at 6 seconds and se 8 ft at
12 seconds. a chance of showers in the morning, then showers
likely in the afternoon. vsby 1 to 3 nm. 
.sun night...e winds 35 to 40 kt with gusts up to 45 kt. seas
9 to 13 ft, building to 12 to 16 ft after midnight. showers. vsby
1 to 3 nm. 
.mon...e winds 30 to 40 kt with gusts up to 50 kt. seas 12 to
16 ft. showers. vsby 1 to 3 nm. 
.mon night...e winds 25 to 35 kt with gusts up to 40 kt. seas
10 to 14 ft. showers. vsby 1 to 3 nm. 
.tue...ne winds 20 to 25 kt with gusts up to 30 kt. seas 8 to
11 ft. showers likely. vsby 1 to 3 nm. 
.tue night...n winds 20 to 25 kt. seas 6 to 9 ft. showers likely.
 

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.

$$