fzus51 kbox 240803
cwfbox
expires:202609242100;;967842

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
402 am edt thu sep 24 2026

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


anz231-242100-
cape cod bay-
402 am edt thu sep 24 2026

...gale warning in effect through friday morning...
...storm watch in effect from friday morning through saturday
evening...

.today...ne winds 20 to 25 kt with gusts up to 30 kt. seas 3 to
5 ft. wave detail: ne 4 ft at 4 seconds. 
.tonight...ne winds 20 to 25 kt. gusts up to 30 kt, increasing to
40 kt after midnight. seas 4 to 6 ft. wave detail: ne 5 ft at
5 seconds. 
.fri...ne winds 25 to 30 kt. gusts up to 40 kt, increasing to
50 kt in the afternoon. seas 5 to 8 ft. wave detail: n 7 ft at
6 seconds. a chance of showers in the morning, then showers
likely in the afternoon. patchy fog in the afternoon. 
.fri night...ne winds 30 to 35 kt with gusts up to 50 kt. seas
7 to 10 ft. wave detail: n 10 ft at 7 seconds. showers likely in
the evening, then showers after midnight. patchy fog in the
evening. 
.sat and sat night...n winds 30 to 35 kt with gusts up to 50 kt.
seas 7 to 10 ft. wave detail: n 10 ft at 8 seconds and n 9 ft at
7 seconds. showers.
.sun...ne winds 25 to 30 kt with gusts up to 40 kt. seas 6 to
9 ft. wave detail: n 9 ft at 7 seconds. showers.
.sun night...ne winds 25 to 30 kt with gusts up to 40 kt. seas
5 to 7 ft. showers.
.mon...n winds 15 to 20 kt with gusts up to 30 kt. seas 3 to
5 ft. showers likely. 
.mon night...n winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 4 ft. 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 240803
cwfbox
expires:202609242100;;967846

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
402 am edt thu sep 24 2026

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


anz232-242100-
nantucket sound-
402 am edt thu sep 24 2026

...gale warning in effect through late tonight...
...storm watch in effect from late tonight through saturday
evening...

.today...ne winds 25 to 30 kt, diminishing to 20 to 25 kt this
afternoon. seas 5 to 7 ft. wave detail: e 6 ft at 7 seconds. 
.tonight...ne winds 25 to 30 kt. gusts up to 45 kt after
midnight. seas 5 to 7 ft. wave detail: ne 7 ft at 7 seconds. 
.fri...ne winds 30 to 35 kt with gusts up to 50 kt. seas 5 to
7 ft, building to 6 to 9 ft in the afternoon. wave detail: n 7 ft
at 6 seconds, becoming n 8 ft at 6 seconds. a chance of showers
in the morning, then showers likely in the afternoon. patchy fog
in the afternoon. 
.fri night...ne winds 30 to 40 kt with gusts up to 50 kt. seas
6 to 9 ft. wave detail: n 9 ft at 7 seconds. showers. patchy fog
in the evening. 
.sat...n winds 35 to 40 kt with gusts up to 50 kt. seas 6 to
9 ft. wave detail: n 8 ft at 7 seconds. showers.
.sat night...n winds 30 to 40 kt with gusts up to 45 kt. seas
5 to 7 ft. wave detail: n 7 ft at 6 seconds. showers.
.sun...n winds 25 to 35 kt with gusts up to 40 kt. seas 4 to
6 ft. showers.
.sun night...ne winds 20 to 25 kt with gusts up to 30 kt. seas
3 to 5 ft. showers likely. 
.mon...n winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
4 ft. showers likely. 
.mon night...nw winds 15 to 20 kt. seas 2 to 3 ft. 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 240803
cwfbox
expires:202609242100;;967847

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
402 am edt thu sep 24 2026

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


anz233-242100-
vineyard sound-
402 am edt thu sep 24 2026

...gale warning in effect through late tonight...
...storm watch in effect from late tonight through saturday
evening...

.today...ne winds 25 to 30 kt with gusts up to 35 kt. seas 4 to
6 ft. wave detail: e 5 ft at 6 seconds. 
.tonight...ne winds 20 to 25 kt, increasing to 25 to 30 kt after
midnight. gusts up to 40 kt. seas 4 to 6 ft. wave detail: ne 5 ft
at 6 seconds. 
.fri...ne winds 25 to 30 kt, increasing to 30 to 35 kt in the
afternoon. gusts up to 50 kt. seas 5 to 7 ft. wave detail: n 7 ft
at 6 seconds. a chance of showers in the morning, then showers
likely in the afternoon. patchy fog in the afternoon. 
.fri night...n winds 30 to 40 kt with gusts up to 50 kt. seas
5 to 7 ft. wave detail: n 7 ft at 5 seconds. showers. patchy fog
in the evening. 
.sat...n winds 30 to 40 kt with gusts up to 45 kt. seas 4 to
6 ft. wave detail: n 5 ft at 6 seconds. showers.
.sat night...n winds around 30 kt with gusts up to 40 kt. seas
3 to 5 ft. wave detail: n 5 ft at 5 seconds. showers with a
chance of tstms. 
.sun and sun night...n winds 25 to 30 kt with gusts up to 40 kt,
becoming ne 20 to 25 kt with gusts up to 30 kt. seas 3 to 4 ft.
showers with a chance of tstms. 
.mon...n winds 15 to 20 kt with gusts up to 25 kt. seas around
3 ft. showers likely. 
.mon night...n winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 3 ft. a chance of showers.  

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 240803
cwfbox
expires:202609242100;;967848

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
402 am edt thu sep 24 2026

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


anz234-242100-
buzzards bay-
402 am edt thu sep 24 2026

...gale warning in effect through late tonight...
...storm watch in effect from late tonight through saturday
evening...

.today...ne winds 25 to 30 kt with gusts up to 35 kt. seas 3 to
5 ft. wave detail: ne 4 ft at 4 seconds. 
.tonight...ne winds 20 to 25 kt, increasing to 25 to 30 kt after
midnight. gusts up to 40 kt. seas 3 to 5 ft. wave detail: ne 4 ft
at 4 seconds. 
.fri...ne winds 25 to 30 kt with gusts up to 40 kt, becoming n
30 to 35 kt with gusts up to 50 kt in the afternoon. seas 4 to
6 ft. wave detail: n 5 ft at 5 seconds. a chance of showers in
the morning, then showers likely in the afternoon. patchy fog in
the afternoon. 
.fri night...n winds 30 to 35 kt with gusts up to 50 kt. seas
4 to 6 ft. wave detail: n 6 ft at 5 seconds. showers. patchy fog
in the evening. 
.sat...n winds 30 to 35 kt with gusts up to 45 kt. seas 4 to
6 ft, subsiding to 3 to 4 ft in the afternoon. wave detail: n
6 ft at 8 seconds and ne 5 ft at 5 seconds, becoming n 4 ft at
5 seconds. showers.
.sat night...n winds 25 to 30 kt with gusts up to 40 kt. seas
3 to 4 ft. wave detail: n 4 ft at 5 seconds. showers with a
chance of tstms. 
.sun and sun night...n winds 25 to 30 kt. gusts up to 40 kt. seas
around 3 ft. showers with a chance of tstms. 
.mon...n winds 15 to 20 kt with gusts up to 30 kt. seas around
3 ft. showers likely. 
.mon night...n winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 3 ft. a chance of showers.  

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 240803
cwfbox
expires:202609242100;;967849

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
402 am edt thu sep 24 2026

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


anz235-242100-
rhode island sound-
402 am edt thu sep 24 2026

...gale warning in effect through late tonight...
...storm watch in effect from late tonight through saturday
evening...

.today...ne winds 25 to 30 kt with gusts up to 35 kt. seas 5 to
8 ft. wave detail: e 8 ft at 10 seconds. 
.tonight...ne winds 20 to 25 kt, increasing to 25 to 30 kt after
midnight. gusts up to 40 kt. seas 6 to 9 ft. wave detail: ne 9 ft
at 9 seconds. 
.fri...ne winds 25 to 30 kt, becoming n 30 to 35 kt in the
afternoon. gusts up to 45 kt. seas 7 to 10 ft. wave detail: ne
10 ft at 9 seconds and n 5 ft at 5 seconds. a chance of showers
in the morning, then showers likely in the afternoon. patchy fog
in the afternoon. 
.fri night...n winds 30 to 35 kt with gusts up to 45 kt. seas
7 to 10 ft. wave detail: ne 9 ft at 9 seconds and n 8 ft at
7 seconds. showers. patchy fog in the evening. 
.sat...n winds 30 to 35 kt with gusts up to 45 kt. seas 6 to
9 ft. wave detail: n 9 ft at 7 seconds. showers.
.sat night...n winds around 30 kt with gusts up to 40 kt. seas
5 to 7 ft. wave detail: n 7 ft at 6 seconds. showers with a
chance of tstms. 
.sun...n winds 25 to 30 kt with gusts up to 40 kt. seas 4 to
6 ft. showers with a chance of tstms. 
.sun night...n winds 20 to 25 kt with gusts up to 30 kt. seas
3 to 5 ft. showers with a chance of tstms. 
.mon and mon night...n winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. a chance of showers.  

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 240803
cwfbox
expires:202609242100;;967852

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
402 am edt thu sep 24 2026

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


anz236-242100-
narragansett bay-
402 am edt thu sep 24 2026

...small craft advisory in effect through friday morning...
...gale warning in effect from friday morning through saturday
evening...

.today...ne winds 20 to 25 kt with gusts up to 30 kt. waves 2 to
3 ft, except 4 to 6 ft at the bay entrance. 
.tonight...ne winds 15 to 20 kt, increasing to 20 to 25 kt after
midnight. gusts up to 35 kt. waves 2 to 3 ft, except 4 to 6 ft at
the bay entrance. 
.fri...n winds 20 to 25 kt, increasing to 25 to 30 kt in the
afternoon. gusts up to 40 kt. waves around 3 ft, except 4 to 6 ft
at the bay entrance. a chance of showers in the afternoon. 
.fri night...n winds 25 to 30 kt with gusts up to 40 kt. waves
around 3 ft, except 4 to 6 ft at the bay entrance. showers.
patchy fog in the evening. 
.sat...n winds 25 to 30 kt with gusts up to 40 kt. waves around
3 ft, except 4 to 6 ft at the bay entrance. showers.
.sat night...n winds 20 to 25 kt with gusts up to 35 kt. waves
around 3 ft. showers. a chance of tstms after midnight. 
.sun and sun night...n winds 25 to 30 kt with gusts up to 35 kt,
diminishing to 20 to 25 kt. waves 2 to 3 ft. showers with a
chance of tstms. 
.mon and mon night...n winds 15 to 20 kt, diminishing to 10 to
15 kt. gusts up to 25 kt. waves 2 to 3 ft. a chance of showers.  

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 240803
cwfbox
expires:202609242100;;967840

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
402 am edt thu sep 24 2026

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


anz250-242100-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
402 am edt thu sep 24 2026

...small craft advisory in effect through late tonight...
...gale warning in effect from late tonight through friday
morning...
...storm watch in effect from friday morning through saturday
evening...

.today...ne winds 15 to 20 kt with gusts up to 30 kt. seas 6 to
9 ft. wave detail: e 9 ft at 10 seconds. 
.tonight...ne winds 15 to 20 kt, increasing to 20 to 25 kt after
midnight. gusts up to 35 kt. seas 7 to 9 ft, building to 8 to
11 ft after midnight. wave detail: e 9 ft at 11 seconds, becoming
e 10 ft at 11 seconds. 
.fri...ne winds 20 to 25 kt with gusts up to 40 kt, increasing to
25 to 30 kt with gusts up to 50 kt in the afternoon. seas 9 to
13 ft, building to 11 to 14 ft in the afternoon. wave detail: e
12 ft at 12 seconds and n 2 ft at 4 seconds, becoming e 13 ft at
12 seconds and nw 3 ft at 5 seconds. a chance of showers in the
afternoon. 
.fri night...ne winds 25 to 30 kt, increasing to 30 to 35 kt
after midnight. gusts up to 50 kt. seas 12 to 15 ft, building to
13 to 17 ft after midnight. wave detail: e 13 ft at 12 seconds
and nw 3 ft at 6 seconds, becoming e 15 ft at 11 seconds and nw
4 ft at 6 seconds. showers.
.sat...n winds 30 to 35 kt with gusts up to 50 kt. seas 14 to
17 ft. wave detail: ne 17 ft at 11 seconds and n 8 ft at
7 seconds. showers.
.sat night...n winds around 30 kt with gusts up to 45 kt. seas
12 to 16 ft, subsiding to 12 to 14 ft after midnight. wave
detail: ne 16 ft at 10 seconds and n 8 ft at 8 seconds, becoming
ne 14 ft at 10 seconds and nw 6 ft at 8 seconds. showers.
.sun...ne winds 25 to 35 kt with gusts up to 45 kt. seas 10 to
13 ft. showers.
.sun night...ne winds 25 to 30 kt with gusts up to 40 kt. seas
7 to 10 ft. showers.
.mon...ne winds 20 to 25 kt with gusts up to 30 kt. seas 5 to
7 ft. showers likely. 
.mon night...n winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. 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 240803
cwfbox
expires:202609242100;;967843

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
402 am edt thu sep 24 2026

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


anz254-242100-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
402 am edt thu sep 24 2026

...gale warning in effect through friday morning...
...storm watch in effect from friday morning through saturday
evening...

.today...ne winds 25 to 30 kt, diminishing to 20 to 25 kt this
afternoon. seas 8 to 11 ft. wave detail: e 11 ft at 10 seconds. 
.tonight...ne winds 25 to 30 kt with gusts up to 40 kt. seas 9 to
13 ft. wave detail: e 12 ft at 11 seconds. 
.fri...ne winds 25 to 30 kt, increasing to 30 to 35 kt in the
afternoon. gusts up to 50 kt. seas 12 to 16 ft. wave detail: e
15 ft at 12 seconds and n 4 ft at 4 seconds. a chance of showers
in the morning, then showers likely in the afternoon. patchy fog
in the afternoon. 
.fri night...ne winds 30 to 40 kt with gusts up to 50 kt. seas
13 to 18 ft. wave detail: ne 16 ft at 12 seconds and n 6 ft at
6 seconds. showers. patchy fog in the evening. 
.sat...n winds 30 to 40 kt with gusts up to 50 kt. seas 13 to
18 ft. wave detail: ne 17 ft at 11 seconds and n 8 ft at
7 seconds. showers.
.sat night...n winds 30 to 35 kt with gusts up to 40 kt. seas
11 to 15 ft. wave detail: ne 15 ft at 10 seconds and nw 8 ft at
7 seconds. showers.
.sun...ne winds 25 to 30 kt with gusts up to 40 kt. seas 9 to
12 ft. showers likely. 
.sun night...ne winds 20 to 25 kt with gusts up to 30 kt. seas
5 to 8 ft. showers likely. 
.mon...ne winds 15 to 20 kt with gusts up to 25 kt. seas 4 to
6 ft. showers likely. 
.mon night...n winds 10 to 15 kt with gusts up to 20 kt. seas
3 to 5 ft. 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 240803
cwfbox
expires:202609242100;;967844

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
402 am edt thu sep 24 2026

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


anz255-242100-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
402 am edt thu sep 24 2026

...gale warning in effect through late tonight...
...storm watch in effect from late tonight through saturday
evening...

.today...ne winds 25 to 30 kt with gusts up to 35 kt. seas 8 to
11 ft. wave detail: e 11 ft at 10 seconds. 
.tonight...ne winds 25 to 30 kt, increasing to 30 to 35 kt after
midnight. gusts up to 45 kt. seas 9 to 13 ft. wave detail: ne
12 ft at 11 seconds. 
.fri...ne winds 35 to 40 kt with gusts up to 50 kt. seas 10 to
14 ft. wave detail: ne 13 ft at 11 seconds and n 6 ft at
6 seconds. patchy fog. a chance of showers in the morning.
showers in the afternoon. 
.fri night...ne winds 35 to 40 kt with gusts up to 50 kt. seas
10 to 14 ft, except 14 to 17 ft s and e of nantucket. wave
detail: ne 13 ft at 11 seconds and n 7 ft at 6 seconds. showers.
patchy fog in the evening. 
.sat...n winds 35 to 40 kt with gusts up to 50 kt. seas 10 to
14 ft. s and e of nantucket, seas 14 to 17 ft, subsiding to 12 to
15 ft in the afternoon. wave detail: ne 13 ft at 10 seconds and n
8 ft at 6 seconds. showers.
.sat night...n winds 30 to 40 kt with gusts up to 45 kt. seas
8 to 11 ft. wave detail: ne 11 ft at 10 seconds and nw 8 ft at
6 seconds. showers.
.sun...n winds 25 to 35 kt with gusts up to 40 kt. seas 6 to
9 ft. showers likely. 
.sun night...ne winds 20 to 25 kt with gusts up to 30 kt. seas
5 to 7 ft. showers likely. 
.mon...n winds 15 to 20 kt with gusts up to 25 kt. seas 4 to
6 ft. a chance of showers. 
.mon night...nw winds 10 to 15 kt with gusts up to 20 kt. seas
3 to 5 ft. 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.

$$