fzus51 kbox 311104
cwfbox
expires:202511010000;;610165

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 am edt fri oct 31 2025

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


anz231-010000-
cape cod bay-
703 am edt fri oct 31 2025

...gale warning in effect through saturday afternoon...

.today...sw winds 20 to 25 kt with gusts up to 40 kt. seas 4 to
6 ft. wave detail: sw 5 ft at 5 seconds and e 3 ft at 7 seconds. 
.tonight...w winds 25 to 30 kt with gusts up to 45 kt. seas 5 to
7 ft. wave detail: w 7 ft at 5 seconds and e 3 ft at 8 seconds. 
.sat...w winds 25 to 30 kt with gusts up to 40 kt, diminishing to
15 to 20 kt with gusts up to 30 kt in the afternoon. seas 4 to
6 ft, subsiding to 3 to 4 ft in the afternoon. wave detail: w
5 ft at 5 seconds and e 2 ft at 11 seconds, becoming w 4 ft at
5 seconds and e 2 ft at 11 seconds. 
.sat night...w winds 15 to 20 kt with gusts up to 30 kt, becoming
nw 10 to 15 kt with gusts up to 20 kt after midnight. seas 2 to
4 ft. wave detail: nw 3 ft at 5 seconds and e 2 ft at 11 seconds.
.sun and sun night...w winds 5 to 10 kt. seas around 2 ft. wave
detail: nw 2 ft at 5 seconds and e 1 foot at 10 seconds. 
.mon...sw winds 5 to 10 kt. seas around 2 ft. wave detail: n
1 foot at 5 seconds. a chance of showers. 
.mon night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 3 ft. showers likely. 
.tue...nw winds 20 to 25 kt with gusts up to 30 kt. seas around
3 ft. a chance of showers. 
.tue night...nw winds 20 to 25 kt with gusts up to 30 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 311104
cwfbox
expires:202511010000;;610169

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 am edt fri oct 31 2025

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


anz232-010000-
nantucket sound-
703 am edt fri oct 31 2025

...storm warning in effect from 3 pm edt this afternoon through
late tonight...

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

$$

fzus51 kbox 311104
cwfbox
expires:202511010000;;610170

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 am edt fri oct 31 2025

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


anz233-010000-
vineyard sound-
703 am edt fri oct 31 2025

...gale warning in effect through saturday afternoon...

.today...sw winds 20 to 25 kt, increasing to 25 to 30 kt this
afternoon. gusts up to 45 kt. seas 5 to 7 ft, building to 7 to
10 ft this afternoon. wave detail: sw 6 ft at 6 seconds and se
5 ft at 9 seconds, becoming sw 10 ft at 8 seconds and s 5 ft at
10 seconds. 
.tonight...w winds 25 to 30 kt with gusts up to 45 kt. seas 9 to
12 ft. wave detail: sw 11 ft at 8 seconds and s 4 ft at
10 seconds. 
.sat...w winds 20 to 25 kt with gusts up to 40 kt, diminishing to
15 to 20 kt with gusts up to 30 kt in the afternoon. seas 6 to
9 ft, subsiding to 5 to 7 ft in the afternoon. wave detail: sw
9 ft at 8 seconds and s 4 ft at 14 seconds, becoming sw 6 ft at
8 seconds and s 3 ft at 12 seconds. 
.sat night...w winds 15 to 20 kt with gusts up to 30 kt, becoming
nw 10 to 15 kt after midnight. seas 3 to 5 ft. wave detail: w
4 ft at 7 seconds and s 2 ft at 11 seconds. 
.sun and sun night...nw winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: w 2 ft at 6 seconds and s 1 foot at 10 seconds. 
.mon...se winds 10 to 15 kt. seas 2 to 3 ft. wave detail: s 2 ft
at 3 seconds and s 1 foot at 8 seconds. a chance of showers. 
.mon night...sw winds 20 to 25 kt. seas 3 to 5 ft. showers
likely. 
.tue...nw winds 20 to 25 kt with gusts up to 30 kt. seas 3 to
5 ft. a chance of showers. 
.tue night...nw winds 20 to 25 kt with gusts up to 30 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.

$$

fzus51 kbox 311104
cwfbox
expires:202511010000;;610171

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 am edt fri oct 31 2025

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


anz234-010000-
buzzards bay-
703 am edt fri oct 31 2025

...gale warning in effect through saturday afternoon...

.today...sw winds 20 to 25 kt, increasing to 25 to 30 kt this
afternoon. gusts up to 40 kt. seas 5 to 7 ft. wave detail: sw
7 ft at 8 seconds and se 3 ft at 8 seconds. 
.tonight...w winds 25 to 30 kt with gusts up to 45 kt. seas 6 to
9 ft. wave detail: sw 8 ft at 8 seconds and s 3 ft at 10 seconds.
.sat...w winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. gusts up to 35 kt. seas 4 to 6 ft. wave detail: sw
6 ft at 8 seconds and s 3 ft at 14 seconds. 
.sat night...nw winds 10 to 15 kt. gusts up to 30 kt in the
evening. seas 2 to 4 ft. wave detail: w 4 ft at 7 seconds and s
2 ft at 11 seconds. 
.sun and sun night...nw winds 5 to 10 kt. seas around 2 ft. wave
detail: w 2 ft at 6 seconds and se 1 foot at 10 seconds. 
.mon...se winds 10 to 15 kt with gusts up to 20 kt. seas around
2 ft. wave detail: s 2 ft at 3 seconds and se 1 foot at
8 seconds. a chance of showers.
.mon night...sw winds 15 to 20 kt. seas 2 to 4 ft. showers
likely. 
.tue...nw winds 20 to 25 kt with gusts up to 30 kt. seas 3 to
4 ft. a chance of showers. 
.tue night...nw winds 20 to 25 kt with gusts up to 30 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 311104
cwfbox
expires:202511010000;;610172

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 am edt fri oct 31 2025

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


anz235-010000-
rhode island sound-
703 am edt fri oct 31 2025

...gale warning in effect through saturday afternoon...

.today...sw winds 20 to 25 kt, becoming w 25 to 30 kt this
afternoon. gusts up to 45 kt. seas 6 to 9 ft, building to 8 to
11 ft this afternoon. wave detail: s 8 ft at 9 seconds and sw
7 ft at 7 seconds, becoming sw 11 ft at 8 seconds and s 9 ft at
10 seconds. 
.tonight...w winds 30 to 35 kt, becoming 25 to 35 kt after
midnight. gusts up to 45 kt. seas 10 to 14 ft. wave detail: sw
14 ft at 9 seconds and s 9 ft at 10 seconds. 
.sat...w winds 25 to 30 kt with gusts up to 40 kt, diminishing to
20 to 25 kt with gusts up to 30 kt in the afternoon. seas 7 to
10 ft, subsiding to 5 to 7 ft in the afternoon. wave detail: w
10 ft at 8 seconds and s 5 ft at 14 seconds, becoming w 7 ft at
8 seconds and s 4 ft at 12 seconds. 
.sat night...nw winds 15 to 20 kt with gusts up to 30 kt,
diminishing to 10 to 15 kt after midnight. seas 4 to 6 ft,
subsiding to 2 to 4 ft after midnight. wave detail: w 5 ft at
7 seconds and s 3 ft at 11 seconds, becoming w 4 ft at 7 seconds
and s 2 ft at 10 seconds. 
.sun...nw winds around 10 kt. seas 2 to 3 ft. wave detail: w 3 ft
at 6 seconds and s 2 ft at 10 seconds. 
.sun night...nw winds 5 to 10 kt. seas around 2 ft. wave detail:
w 2 ft at 6 seconds and s 2 ft at 9 seconds. 
.mon...se winds 10 to 15 kt. seas 2 to 3 ft. a chance of showers.
.mon night...sw winds 20 to 25 kt. seas 4 to 6 ft. showers
likely. 
.tue...nw winds 20 to 25 kt with gusts up to 30 kt. seas 4 to
6 ft. a chance of showers. 
.tue night...nw winds 20 to 25 kt with gusts up to 30 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.

$$

fzus51 kbox 311104
cwfbox
expires:202511010000;;610175

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 am edt fri oct 31 2025

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


anz236-010000-
narragansett bay-
703 am edt fri oct 31 2025

...gale warning in effect through saturday morning...

.today...sw winds 15 to 20 kt, becoming w 20 to 25 kt this
afternoon. gusts up to 40 kt. waves 4 to 6 ft. at the bay
entrance, waves 5 to 7 ft, building to 6 to 9 ft this afternoon. 
.tonight...w winds 20 to 25 kt with gusts up to 45 kt. waves 5 to
7 ft, except 7 to 10 ft at the bay entrance. 
.sat...w winds 15 to 20 kt. gusts up to 35 kt, decreasing to
25 kt in the afternoon. waves 3 to 5 ft. 
.sat night...nw winds 10 to 15 kt with gusts up to 25 kt,
diminishing to 5 to 10 kt after midnight. waves 2 to 3 ft. 
.sun and sun night...nw winds 5 to 10 kt. waves around 2 ft. 
.mon...s winds 10 to 15 kt. waves around 2 ft. a chance of
showers. 
.mon night...sw winds 10 to 15 kt with gusts up to 20 kt. waves
2 to 3 ft. showers likely. 
.tue...nw winds 20 to 25 kt with gusts up to 30 kt. waves 2 to
3 ft. a chance of showers. 
.tue night...nw winds 15 to 20 kt with gusts up to 25 kt. waves
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 311104
cwfbox
expires:202511010000;;610163

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 am edt fri oct 31 2025

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


anz250-010000-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
703 am edt fri oct 31 2025

...storm warning in effect from 3 pm edt this afternoon through
late tonight...

.today...sw winds 20 to 25 kt, increasing to 25 to 30 kt this
afternoon. gusts up to 40 kt. seas 7 to 10 ft. wave detail: e
10 ft at 10 seconds and sw 6 ft at 5 seconds. 
.tonight...w winds 30 to 35 kt with gusts up to 50 kt. seas 8 to
11 ft. wave detail: w 10 ft at 7 seconds and e 8 ft at
10 seconds. 
.sat...w winds 25 to 30 kt with gusts up to 45 kt, diminishing to
20 to 25 kt with gusts up to 35 kt in the afternoon. seas 7 to
10 ft, subsiding to 5 to 7 ft in the afternoon. wave detail: w
8 ft at 6 seconds and e 4 ft at 11 seconds, becoming w 7 ft at
6 seconds and e 3 ft at 11 seconds. 
.sat night...w winds 20 to 25 kt with gusts up to 30 kt, becoming
nw 10 to 15 kt with gusts up to 20 kt after midnight. seas 4 to
6 ft. wave detail: w 5 ft at 5 seconds and e 3 ft at 11 seconds. 
.sun and sun night...nw winds 10 to 15 kt. seas 2 to 3 ft. wave
detail: nw 3 ft at 4 seconds and se 2 ft at 10 seconds. 
.mon...sw winds 10 to 15 kt. seas around 2 ft. wave detail: sw
2 ft at 3 seconds and se 1 foot at 9 seconds. a chance of
showers. 
.mon night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 4 ft. showers likely. 
.tue...nw winds 20 to 25 kt with gusts up to 35 kt. seas 3 to
5 ft. a chance of showers. 
.tue night...nw winds 20 to 25 kt with gusts up to 30 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.

$$

fzus51 kbox 311104
cwfbox
expires:202511010000;;610166

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 am edt fri oct 31 2025

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


anz254-010000-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
703 am edt fri oct 31 2025

...storm warning in effect from 3 pm edt this afternoon through
late tonight...

.today...sw winds 20 to 25 kt, increasing to 25 to 30 kt this
afternoon. gusts up to 45 kt. seas 8 to 11 ft, building to 9 to
13 ft this afternoon. wave detail: se 10 ft at 10 seconds and sw
5 ft at 5 seconds, becoming se 10 ft at 10 seconds and sw 9 ft at
6 seconds. 
.tonight...w 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: se
10 ft at 10 seconds and w 9 ft at 7 seconds. 
.sat...w winds 25 to 30 kt with gusts up to 45 kt, diminishing to
20 to 25 kt with gusts up to 35 kt in the afternoon. seas 9 to
12 ft, subsiding to 6 to 9 ft in the afternoon. wave detail: w
9 ft at 6 seconds and s 5 ft at 14 seconds, becoming w 8 ft at
6 seconds and se 4 ft at 12 seconds. 
.sat night...w winds 15 to 20 kt with gusts up to 30 kt, becoming
nw 10 to 15 kt with gusts up to 20 kt after midnight. seas 5 to
7 ft, subsiding to 3 to 5 ft after midnight. wave detail: nw 6 ft
at 6 seconds and se 4 ft at 11 seconds, becoming nw 4 ft at
6 seconds and se 3 ft at 11 seconds. 
.sun and sun night...nw winds 5 to 10 kt. seas 2 to 4 ft. wave
detail: nw 3 ft at 6 seconds and s 2 ft at 10 seconds. 
.mon...s winds 5 to 10 kt. seas around 2 ft. wave detail: s 2 ft
at 3 seconds and s 2 ft at 8 seconds. a chance of showers. 
.mon night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. showers likely. 
.tue...nw winds 20 to 25 kt with gusts up to 30 kt. seas 4 to
6 ft. showers likely. 
.tue night...nw winds 25 to 30 kt with gusts up to 35 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 311104
cwfbox
expires:202511010000;;610167

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 am edt fri oct 31 2025

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


anz255-010000-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
703 am edt fri oct 31 2025

...storm warning in effect from 3 pm edt this afternoon through
late tonight...

.today...sw winds 25 to 30 kt. gusts up to 40 kt, increasing to
50 kt this afternoon. seas 8 to 11 ft, building to 12 to 16 ft
this afternoon. wave detail: sw 9 ft at 7 seconds and se 9 ft at
10 seconds, becoming sw 15 ft at 9 seconds and se 8 ft at
10 seconds. 
.tonight...w winds 30 to 35 kt with gusts up to 50 kt. seas 14 to
19 ft. wave detail: sw 18 ft at 10 seconds and s 6 ft at
15 seconds. 
.sat...w winds 25 to 30 kt, diminishing to 20 to 25 kt in the
afternoon. gusts up to 40 kt. seas 10 to 14 ft, subsiding to 7 to
10 ft in the afternoon. wave detail: w 14 ft at 10 seconds and s
6 ft at 13 seconds, becoming w 10 ft at 9 seconds and s 5 ft at
12 seconds. 
.sat night...w winds 20 to 25 kt with gusts up to 30 kt, becoming
nw 15 to 20 kt after midnight. seas 5 to 8 ft, subsiding to 4 to
6 ft after midnight. wave detail: w 8 ft at 8 seconds and s 3 ft
at 11 seconds, becoming w 6 ft at 7 seconds and s 3 ft at
10 seconds.
.sun and sun night...nw winds 10 to 15 kt. seas 2 to 4 ft. wave
detail: w 4 ft at 7 seconds and s 2 ft at 10 seconds. 
.mon...se winds 10 to 15 kt. seas 2 to 3 ft. wave detail: s 2 ft
at 3 seconds and s 2 ft at 8 seconds. a chance of showers. 
.mon night...sw winds 25 to 30 kt. seas 5 to 7 ft. showers
likely. 
.tue...nw winds 25 to 30 kt with gusts up to 35 kt. seas 6 to
9 ft. a chance of showers. 
.tue night...nw winds 25 to 35 kt. seas 6 to 9 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.

$$