fzus51 kbox 251704
cwfbox
expires:202609260600;;039904

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt fri sep 25 2026

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


anz231-260600-
cape cod bay-
103 pm edt fri sep 25 2026

...storm warning in effect through saturday evening...

.this afternoon...ne winds 20 to 25 kt with gusts up to 40 kt.
seas 5 to 7 ft. wave detail: e 7 ft at 12 seconds and n 6 ft at
5 seconds. rain likely. 
.tonight...ne winds 20 to 25 kt, increasing to 25 to 30 kt after
midnight. gusts up to 50 kt. seas 5 to 7 ft, building to 6 to
9 ft after midnight. wave detail: n 7 ft at 6 seconds and e 7 ft
at 12 seconds, becoming e 9 ft at 12 seconds and n 8 ft at
6 seconds. rain likely. 
.sat...ne winds 25 to 30 kt with gusts up to 50 kt. seas 6 to
9 ft. wave detail: e 9 ft at 11 seconds and n 8 ft at 7 seconds.
rain.
.sat night...ne winds 25 to 30 kt with gusts up to 45 kt. seas
6 to 9 ft. wave detail: e 9 ft at 12 seconds and ne 7 ft at
7 seconds. rain.
.sun...ne winds 20 to 25 kt with gusts up to 45 kt. seas 5 to
7 ft. wave detail: n 5 ft at 7 seconds and se 2 ft at 10 seconds.
rain.
.sun night...e winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. gusts up to 35 kt. seas 5 to 7 ft. wave detail: n
6 ft at 7 seconds and se 2 ft at 10 seconds. rain.
.mon...e winds 10 to 15 kt with gusts up to 25 kt. seas 3 to
5 ft. rain.
.mon night...n winds 10 to 15 kt with gusts up to 20 kt. seas
3 to 5 ft. a chance of rain. 
.tue and tue night...nw winds 10 to 15 kt with gusts up to 20 kt,
becoming w around 5 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 251704
cwfbox
expires:202609260600;;039908

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt fri sep 25 2026

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


anz232-260600-
nantucket sound-
103 pm edt fri sep 25 2026

...storm warning in effect through saturday evening...

.this afternoon...ne winds 25 to 30 kt with gusts up to 45 kt.
seas 5 to 7 ft. wave detail: n 7 ft at 5 seconds and e 5 ft at
11 seconds. rain.
.tonight...ne winds 25 to 30 kt with gusts up to 55 kt. seas 6 to
9 ft. wave detail: n 6 ft at 6 seconds and e 6 ft at 11 seconds.
rain.
.sat...ne winds 25 to 30 kt. gusts up to 55 kt, decreasing to
45 kt in the afternoon. seas 6 to 9 ft. wave detail: n 7 ft at
10 seconds and ne 6 ft at 5 seconds. rain.
.sat night...ne winds 25 to 30 kt with gusts up to 45 kt. seas
5 to 8 ft. wave detail: e 5 ft at 11 seconds and ne 4 ft at
5 seconds. rain.
.sun...e winds 20 to 25 kt with gusts up to 50 kt, diminishing to
15 to 20 kt with gusts up to 40 kt in the afternoon. seas 5 to
7 ft. wave detail: ne 4 ft at 5 seconds and e 4 ft at 10 seconds.
rain.
.sun night...e winds around 15 kt. gusts up to 30 kt, decreasing
to 20 kt after midnight. seas 4 to 6 ft. wave detail: e 5 ft at
6 seconds and s 2 ft at 8 seconds. rain.
.mon...e winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
4 ft. rain likely. 
.mon night...n winds 10 to 15 kt. seas 2 to 4 ft. a chance of
rain. 
.tue and tue night...nw winds 10 to 15 kt, becoming w 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 251704
cwfbox
expires:202609260600;;039909

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt fri sep 25 2026

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


anz233-260600-
vineyard sound-
103 pm edt fri sep 25 2026

...storm warning in effect through saturday evening...

.this afternoon...ne winds 25 to 30 kt with gusts up to 45 kt.
seas 4 to 6 ft. wave detail: n 6 ft at 5 seconds and se 2 ft at
12 seconds. rain.
.tonight...ne winds 25 to 30 kt with gusts up to 55 kt. seas 5 to
7 ft. wave detail: n 7 ft at 6 seconds and se 3 ft at 12 seconds.
rain.
.sat...ne winds 25 to 30 kt with gusts up to 55 kt. seas 5 to
7 ft. wave detail: n 7 ft at 6 seconds and se 2 ft at 11 seconds.
rain.
.sat night...ne winds 25 to 30 kt with gusts up to 45 kt. seas
4 to 6 ft. wave detail: ne 6 ft at 4 seconds and e 5 ft at
10 seconds. rain.
.sun...ne winds 20 to 25 kt with gusts up to 50 kt, becoming e
15 to 20 kt with gusts up to 40 kt in the afternoon. seas 4 to
6 ft. wave detail: e 4 ft at 10 seconds and ne 3 ft at 4 seconds.
rain.
.sun night...ne winds 10 to 15 kt. gusts up to 30 kt, decreasing
to 20 kt after midnight. seas 3 to 5 ft. wave detail: ne 3 ft at
4 seconds and s 3 ft at 8 seconds. rain.
.mon...e winds around 10 kt. seas 2 to 3 ft. rain likely. 
.mon night...n winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft. a chance of rain. 
.tue and tue night...nw winds 10 to 15 kt, becoming w 5 to 10 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 251704
cwfbox
expires:202609260600;;039910

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt fri sep 25 2026

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


anz234-260600-
buzzards bay-
103 pm edt fri sep 25 2026

...storm warning in effect through saturday evening...

.this afternoon...ne winds 20 to 25 kt with gusts up to 45 kt.
seas 4 to 6 ft. wave detail: n 6 ft at 5 seconds and e 2 ft at
11 seconds. rain.
.tonight...ne winds 25 to 30 kt with gusts up to 50 kt. seas 4 to
6 ft. wave detail: n 6 ft at 5 seconds and e 2 ft at 11 seconds.
rain likely. 
.sat...ne winds 25 to 30 kt with gusts up to 55 kt. seas 4 to
6 ft. wave detail: n 6 ft at 8 seconds and ne 5 ft at 4 seconds.
rain.
.sat night...ne winds 25 to 30 kt, diminishing to 20 to 25 kt
after midnight. gusts up to 45 kt. seas 4 to 6 ft. wave detail:
nw 6 ft at 9 seconds and ne 4 ft at 4 seconds. rain.
.sun...ne winds 15 to 20 kt. gusts up to 50 kt, decreasing to
40 kt in the afternoon. seas 4 to 6 ft. wave detail: ne 3 ft at
4 seconds and se 2 ft at 11 seconds. rain.
.sun night...ne winds 10 to 15 kt. gusts up to 30 kt, decreasing
to 20 kt after midnight. seas 3 to 5 ft, subsiding to 2 to 3 ft
after midnight. wave detail: ne 3 ft at 4 seconds and s 2 ft at
8 seconds, becoming ne 3 ft at 4 seconds and s 1 foot at
7 seconds. rain.
.mon...e winds around 10 kt. seas around 2 ft. rain.
.mon night...n winds 10 to 15 kt with gusts up to 20 kt. seas
around 2 ft. a chance of rain. 
.tue and tue night...w winds 5 to 10 kt. seas around 2 ft, then
1 foot or less.  

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 251704
cwfbox
expires:202609260600;;039911

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt fri sep 25 2026

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


anz235-260600-
rhode island sound-
103 pm edt fri sep 25 2026

...storm warning in effect through saturday evening...

.this afternoon...ne winds 25 to 30 kt with gusts up to 45 kt.
seas 5 to 8 ft. wave detail: n 7 ft at 5 seconds and se 7 ft at
13 seconds. rain.
.tonight...ne winds 25 to 35 kt, becoming 30 to 35 kt after
midnight. gusts up to 55 kt. seas 7 to 10 ft. wave detail: n 8 ft
at 6 seconds and se 7 ft at 12 seconds. rain.
.sat...ne winds 30 to 35 kt with gusts up to 55 kt. seas 7 to
10 ft. wave detail: n 8 ft at 6 seconds and se 6 ft at
12 seconds. rain.
.sat night...ne winds 30 to 35 kt, diminishing to 25 to 30 kt
after midnight. gusts up to 55 kt. seas 6 to 9 ft. wave detail:
ne 7 ft at 5 seconds and se 6 ft at 10 seconds. rain.
.sun...ne winds 20 to 25 kt, becoming e 15 to 20 kt in the
afternoon. gusts up to 50 kt. seas 6 to 9 ft, subsiding to 5 to
7 ft in the afternoon. wave detail: se 6 ft at 9 seconds and ne
5 ft at 5 seconds, becoming s 6 ft at 9 seconds and se 6 ft at
10 seconds. rain.
.sun night...ne winds 15 to 20 kt. gusts up to 30 kt, decreasing
to 20 kt after midnight. seas 4 to 6 ft. wave detail: ne 5 ft at
5 seconds and s 5 ft at 8 seconds. rain.
.mon...e winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
4 ft. rain.
.mon night...n winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 4 ft. a chance of rain. 
.tue and tue night...nw winds 10 to 15 kt, becoming w 5 to 10 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 251704
cwfbox
expires:202609260600;;039914

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt fri sep 25 2026

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


anz236-260600-
narragansett bay-
103 pm edt fri sep 25 2026

...storm warning in effect through saturday evening...

.this afternoon...ne winds 20 to 25 kt with gusts up to 40 kt.
waves around 3 ft. rain likely. 
.tonight...ne winds 20 to 25 kt, increasing to 25 to 30 kt after
midnight. gusts up to 50 kt. waves around 3 ft, except 4 to 6 ft
at the bay entrance. rain likely, mainly in the evening. 
.sat...ne winds 25 to 30 kt with gusts up to 55 kt. waves around
3 ft, except 4 to 6 ft at the bay entrance. rain.
.sat night...ne winds 20 to 25 kt with gusts up to 50 kt. waves
around 3 ft, except 4 to 6 ft at the bay entrance. rain.
.sun...ne winds 15 to 20 kt with gusts up to 45 kt. waves around
3 ft, except 4 to 6 ft at the bay entrance. rain.
.sun night...ne winds 10 to 15 kt. gusts up to 30 kt, decreasing
to 20 kt after midnight. waves 2 to 3 ft. rain.
.mon and mon night...ne winds 10 to 15 kt, becoming n with gusts
up to 20 kt. waves 2 to 3 ft. rain.
.tue and tue night...nw winds 5 to 10 kt. waves around 2 ft, then
1 foot or less.  

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 251704
cwfbox
expires:202609260600;;039902

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt fri sep 25 2026

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


anz250-260600-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
103 pm edt fri sep 25 2026

...storm warning in effect through saturday evening...

.this afternoon...ne winds 20 to 25 kt with gusts up to 35 kt.
seas 10 to 13 ft. wave detail: e 12 ft at 12 seconds and ne 8 ft
at 8 seconds. a chance of rain. 
.tonight...ne winds 20 to 25 kt, increasing to 25 to 30 kt after
midnight. gusts up to 45 kt. seas 11 to 15 ft, building to 14 to
19 ft after midnight. wave detail: e 14 ft at 11 seconds and n
9 ft at 7 seconds, becoming e 15 ft at 11 seconds and n 10 ft at
7 seconds. a chance of rain. 
.sat...ne winds 25 to 30 kt with gusts up to 50 kt. seas 15 to
20 ft. wave detail: e 15 ft at 11 seconds and ne 12 ft at
8 seconds. rain.
.sat night...ne winds around 30 kt with gusts up to 50 kt. seas
13 to 17 ft. wave detail: ne 14 ft at 10 seconds and se 12 ft at
10 seconds. rain.
.sun...ne winds 25 to 30 kt with gusts up to 50 kt. seas 11 to
15 ft. wave detail: ne 12 ft at 10 seconds and s 5 ft at
9 seconds. rain.
.sun night...ne winds 20 to 25 kt. gusts up to 40 kt, decreasing
to 30 kt after midnight. seas 9 to 13 ft, subsiding to 8 to 10 ft
after midnight. wave detail: ne 10 ft at 9 seconds and se 3 ft at
9 seconds, becoming ne 10 ft at 8 seconds and s 2 ft at
8 seconds. rain.
.mon...ne winds 15 to 20 kt with gusts up to 30 kt. seas 7 to
9 ft. rain.
.mon night...ne winds 10 to 15 kt with gusts up to 20 kt. seas
5 to 8 ft. rain likely. 
.tue...n winds 10 to 15 kt with gusts up to 20 kt. seas 5 to
6 ft. a chance of showers. 
.tue night...nw winds around 5 kt. seas 4 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.

$$

fzus51 kbox 251704
cwfbox
expires:202609260600;;039905

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt fri sep 25 2026

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


anz254-260600-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
103 pm edt fri sep 25 2026

...storm warning in effect through saturday evening...

.this afternoon...ne winds 25 to 30 kt with gusts up to 50 kt.
seas 11 to 15 ft, except 14 to 19 ft s and e of nantucket. wave
detail: e 14 ft at 12 seconds and n 9 ft at 6 seconds. rain.
.tonight...ne winds 25 to 30 kt, increasing to 30 to 35 kt after
midnight. gusts up to 50 kt. seas 12 to 17 ft, building to 14 to
19 ft after midnight. s and e of nantucket, seas 16 to 20 ft,
building to 17 to 22 ft after midnight. wave detail: e 16 ft at
12 seconds and ne 9 ft at 8 seconds, becoming e 16 ft at
11 seconds and ne 9 ft at 8 seconds. rain.
.sat...ne winds 25 to 30 kt with gusts up to 50 kt. seas 15 to
20 ft, subsiding to 12 to 17 ft in the afternoon. s and e of
nantucket, seas 17 to 22 ft. wave detail: e 16 ft at 11 seconds
and n 7 ft at 8 seconds, becoming e 15 ft at 11 seconds and n
6 ft at 8 seconds. rain.
.sat night...ne winds 25 to 30 kt, diminishing to 20 to 25 kt
after midnight. gusts up to 45 kt. seas 12 to 16 ft. wave detail:
e 13 ft at 11 seconds and ne 11 ft at 10 seconds. rain.
.sun...e winds 20 to 25 kt with gusts up to 45 kt. seas 9 to
13 ft. wave detail: ne 9 ft at 10 seconds and s 7 ft at
10 seconds. rain likely. 
.sun night...e winds 15 to 20 kt. gusts up to 35 kt, decreasing
to 25 kt after midnight. seas 8 to 11 ft, subsiding to 6 to 9 ft
after midnight. wave detail: ne 8 ft at 9 seconds and s 4 ft at
8 seconds, becoming ne 8 ft at 9 seconds and s 3 ft at 8 seconds.
rain likely. 
.mon...e winds 10 to 15 kt with gusts up to 25 kt. seas 5 to
8 ft. a chance of rain. 
.mon night...n winds 10 to 15 kt. seas 5 to 7 ft. a chance of
rain. 
.tue and tue night...nw winds 10 to 15 kt with gusts up to 20 kt,
becoming w 5 to 10 kt. seas 4 to 6 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 251704
cwfbox
expires:202609260600;;039906

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt fri sep 25 2026

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


anz255-260600-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
103 pm edt fri sep 25 2026

...storm warning in effect through saturday evening...

.this afternoon...ne winds 30 to 35 kt with gusts up to 50 kt.
seas 10 to 14 ft, except 14 to 19 ft s and e of nantucket. wave
detail: e 12 ft at 11 seconds and n 9 ft at 6 seconds. rain.
.tonight...ne winds 30 to 35 kt with gusts up to 55 kt. seas
11 to 15 ft, building to 13 to 18 ft after midnight. s and e of
nantucket, seas 16 to 20 ft, building to 17 to 22 ft after
midnight. wave detail: e 13 ft at 12 seconds and n 10 ft at
7 seconds, becoming e 14 ft at 12 seconds and n 10 ft at
7 seconds. rain.
.sat...ne winds 30 to 35 kt with gusts up to 55 kt. seas 13 to
18 ft, except 17 to 22 ft s and e of nantucket. wave detail: e
13 ft at 11 seconds and n 7 ft at 7 seconds. rain.
.sat night...ne winds 25 to 30 kt with gusts up to 45 kt. seas
11 to 15 ft. wave detail: e 11 ft at 11 seconds and ne 7 ft at
10 seconds. rain.
.sun...e winds 20 to 25 kt with gusts up to 50 kt, diminishing to
15 to 20 kt with gusts up to 40 kt in the afternoon. seas 9 to
12 ft, subsiding to 7 to 10 ft in the afternoon. wave detail: s
8 ft at 9 seconds and se 8 ft at 10 seconds, becoming s 7 ft at
9 seconds and e 5 ft at 10 seconds. rain likely. 
.sun night...e winds 10 to 15 kt. gusts up to 30 kt, decreasing
to 20 kt after midnight. seas 6 to 9 ft, subsiding to 4 to 6 ft
after midnight. wave detail: s 5 ft at 8 seconds and ne 5 ft at
9 seconds, becoming ne 5 ft at 9 seconds and s 3 ft at 7 seconds.
rain likely. 
.mon and mon night...e winds 5 to 10 kt, becoming n 10 to 15 kt.
seas 3 to 5 ft. a chance of rain. 
.tue and tue night...nw winds 10 to 15 kt, becoming w 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.

$$