fzus51 kbox 171405
cwfbox
expires:202610180300;;255559

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 am edt sat oct 17 2026

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


anz231-180300-
cape cod bay-
1005 am edt sat oct 17 2026

...small craft advisory in effect through late tonight...

.this afternoon...n winds 20 to 25 kt with gusts up to 30 kt.
seas 3 to 4 ft. wave detail: n 4 ft at 5 seconds and s 1 foot at
8 seconds. 
.tonight...n winds 15 to 20 kt with gusts up to 30 kt. seas 3 to
4 ft. wave detail: n 4 ft at 6 seconds and s 1 foot at 8 seconds.
.sun...n winds 10 to 15 kt with gusts up to 20 kt, becoming ne
5 to 10 kt in the afternoon. seas 2 to 3 ft. wave detail: n 3 ft
at 6 seconds and se 1 foot at 8 seconds. 
.sun night...e winds 5 to 10 kt. seas 2 to 3 ft. wave detail: n
2 ft at 5 seconds and e 2 ft at 8 seconds. 
.mon...ne winds 5 to 10 kt. gusts up to 20 kt in the afternoon.
seas 2 to 4 ft. wave detail: e 4 ft at 9 seconds and se 4 ft at
13 seconds. 
.mon night...ne winds 10 to 15 kt, increasing to 15 to 20 kt
after midnight. gusts up to 25 kt. seas 3 to 5 ft. wave detail: e
5 ft at 9 seconds and e 5 ft at 12 seconds. 
.tue through wed night...ne 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 171405
cwfbox
expires:202610180300;;255563

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 am edt sat oct 17 2026

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


anz232-180300-
nantucket sound-
1005 am edt sat oct 17 2026

...small craft advisory in effect through sunday morning...

.this afternoon...n winds around 20 kt with gusts up to 30 kt.
seas 3 to 4 ft. wave detail: n 3 ft at 4 seconds and s 1 foot at
7 seconds. rain.
.tonight...n winds 15 to 20 kt with gusts up to 30 kt. seas 3 to
4 ft. wave detail: n 3 ft at 4 seconds and s 1 foot at 7 seconds.
.sun...ne winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. gusts up to 25 kt. seas 2 to 3 ft. wave detail: n 3 ft
at 5 seconds and se 1 foot at 9 seconds. 
.sun night...e winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 4 ft. wave detail: n 3 ft at 5 seconds and e 3 ft at
14 seconds. 
.mon...ne winds 15 to 20 kt with gusts up to 25 kt. seas 4 to
6 ft. wave detail: e 5 ft at 10 seconds and ne 4 ft at 6 seconds.
.mon night...ne winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. gusts up to 30 kt. seas 5 to 7 ft. wave detail: e
6 ft at 11 seconds and ne 5 ft at 5 seconds. 
.tue...ne winds 20 to 25 kt with gusts up to 30 kt. seas 4 to
6 ft. 
.tue night...ne winds 25 to 30 kt with gusts up to 35 kt. seas
3 to 5 ft. 
.wed and wed night...ne 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 171405
cwfbox
expires:202610180300;;255564

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 am edt sat oct 17 2026

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


anz233-180300-
vineyard sound-
1005 am edt sat oct 17 2026

...small craft advisory in effect through sunday morning...

.this afternoon...n winds 15 to 20 kt with gusts up to 30 kt.
seas 3 to 4 ft. wave detail: sw 3 ft at 7 seconds and n 2 ft at
4 seconds. 
.tonight...n winds 15 to 20 kt with gusts up to 30 kt. seas 3 to
4 ft. wave detail: n 3 ft at 3 seconds and sw 1 foot at
7 seconds. 
.sun...ne winds 10 to 15 kt. gusts up to 25 kt in the morning.
seas 2 to 3 ft. wave detail: n 2 ft at 4 seconds and s 1 foot at
7 seconds. 
.sun night...e winds around 10 kt. seas 2 to 3 ft. wave detail: n
2 ft at 4 seconds and se 1 foot at 7 seconds. 
.mon and mon night...ne winds 20 to 25 kt. seas 3 to 5 ft. wave
detail: e 4 ft at 9 seconds and ne 3 ft at 4 seconds. 
.tue through wed night...ne winds 25 to 30 kt with gusts up to
35 kt. seas 3 to 5 ft. wave detail: n 5 ft at 5 seconds and e
4 ft at 10 seconds.  

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 171405
cwfbox
expires:202610180300;;255565

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 am edt sat oct 17 2026

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


anz234-180300-
buzzards bay-
1005 am edt sat oct 17 2026

...small craft advisory in effect through sunday morning...

.this afternoon...n winds 15 to 20 kt with gusts up to 30 kt.
seas around 3 ft. wave detail: n 2 ft at 3 seconds and sw 2 ft at
7 seconds. 
.tonight...n winds 15 to 20 kt with gusts up to 30 kt. seas 2 to
3 ft. wave detail: n 2 ft at 3 seconds and sw 1 foot at
7 seconds. 
.sun...n winds 10 to 15 kt with gusts up to 20 kt, becoming ne
5 to 10 kt in the afternoon. seas 2 to 3 ft. wave detail: n 2 ft
at 4 seconds and s 1 foot at 7 seconds. 
.sun night...e winds 5 to 10 kt. seas around 2 ft. wave detail: n
1 foot at 4 seconds and se 1 foot at 6 seconds. 
.mon and mon night...ne winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. wave detail: e 4 ft at 9 seconds and ne 3 ft at
4 seconds. 
.tue through wed night...ne winds 25 to 30 kt with gusts up to
35 kt. seas 3 to 5 ft. wave detail: n 5 ft at 5 seconds and e
4 ft at 10 seconds.  

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 171405
cwfbox
expires:202610180300;;255566

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 am edt sat oct 17 2026

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


anz235-180300-
rhode island sound-
1005 am edt sat oct 17 2026

...small craft advisory in effect through sunday morning...

.this afternoon...n winds around 20 kt with gusts up to 30 kt.
seas 3 to 4 ft. wave detail: n 3 ft at 4 seconds and s 3 ft at
7 seconds. 
.tonight...n winds 15 to 20 kt with gusts up to 30 kt. seas 3 to
4 ft. wave detail: n 3 ft at 4 seconds and s 2 ft at 7 seconds. 
.sun...ne winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: n 3 ft at 4 seconds and s 1 foot at 7 seconds.
.sun night...ne winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas 2 to 4 ft. wave detail: e 4 ft at 6 seconds and n
1 foot at 4 seconds. 
.mon and mon night...ne winds 20 to 25 kt. seas 5 to 7 ft. wave
detail: e 7 ft at 7 seconds and se 7 ft at 13 seconds. 
.tue and tue night...ne winds 20 to 25 kt, increasing to 25 to
30 kt. seas 5 to 7 ft. wave detail: e 6 ft at 11 seconds and n
5 ft at 5 seconds. 
.wed...ne winds 25 to 30 kt with gusts up to 35 kt. seas 4 to
6 ft. 
.wed night...ne winds 25 to 30 kt. seas 5 to 7 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 171405
cwfbox
expires:202610180300;;255569

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 am edt sat oct 17 2026

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


anz236-180300-
narragansett bay-
1005 am edt sat oct 17 2026

...small craft advisory in effect until 8 pm edt this evening...

.this afternoon...n winds around 15 kt with gusts up to 30 kt.
waves around 3 ft. 
.tonight...n winds 10 to 15 kt with gusts up to 30 kt. waves 2 to
3 ft. 
.sun...ne winds 5 to 10 kt. gusts up to 20 kt in the morning.
waves 2 to 3 ft. 
.sun night...ne winds 5 to 10 kt. waves around 2 ft. 
.mon and mon night...n winds 15 to 20 kt with gusts up to 25 kt.
waves 2 to 3 ft, except 4 to 6 ft at the bay entrance. 
.tue through wed night...ne winds 20 to 25 kt with gusts up to
30 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 171405
cwfbox
expires:202610180300;;255557

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 am edt sat oct 17 2026

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


anz250-180300-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
1005 am edt sat oct 17 2026

...small craft advisory in effect through sunday morning...

.this afternoon...nw winds 20 to 25 kt with gusts up to 30 kt.
seas 4 to 6 ft. wave detail: n 5 ft at 6 seconds and se 2 ft at
8 seconds. 
.tonight...n winds 20 to 25 kt, diminishing to 15 to 20 kt after
midnight. gusts up to 30 kt. seas 4 to 6 ft. wave detail: n 5 ft
at 6 seconds and se 1 foot at 8 seconds. 
.sun...n winds 10 to 15 kt with gusts up to 20 kt, becoming ne
around 5 kt in the afternoon. seas 2 to 4 ft. wave detail: n 3 ft
at 6 seconds and se 1 foot at 8 seconds. 
.sun night...se winds 5 to 10 kt. seas 2 to 3 ft, building to
3 to 5 ft after midnight. wave detail: n 3 ft at 5 seconds and se
1 foot at 7 seconds, becoming e 4 ft at 8 seconds and ne 2 ft at
5 seconds. 
.mon...e winds 5 to 10 kt. seas 4 to 6 ft, building to 6 to 9 ft
in the afternoon. wave detail: e 6 ft at 10 seconds and se 4 ft
at 14 seconds, becoming e 9 ft at 11 seconds and e 2 ft at
4 seconds. 
.mon night...ne winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas 7 to 10 ft. wave detail: e 10 ft at 11 seconds and
ne 4 ft at 4 seconds. 
.tue...ne winds 15 to 20 kt with gusts up to 25 kt. seas 7 to
10 ft. 
.tue night through wed night...ne winds 20 to 25 kt with gusts up
to 30 kt. seas 5 to 8 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 171405
cwfbox
expires:202610180300;;255560

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 am edt sat oct 17 2026

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


anz254-180300-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
1005 am edt sat oct 17 2026

...small craft advisory in effect through sunday morning...

.this afternoon...n winds 20 to 25 kt with gusts up to 30 kt.
seas 4 to 6 ft. wave detail: n 6 ft at 6 seconds and s 3 ft at
7 seconds. rain.
.tonight...n winds 20 to 25 kt, diminishing to 15 to 20 kt after
midnight. gusts up to 30 kt. seas 4 to 6 ft. wave detail: n 6 ft
at 7 seconds and s 2 ft at 7 seconds. 
.sun...ne winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. gusts up to 25 kt. seas 3 to 5 ft. wave detail: n 5 ft
at 7 seconds and e 4 ft at 8 seconds. 
.sun night...e winds 10 to 15 kt with gusts up to 25 kt. seas
5 to 7 ft. wave detail: e 7 ft at 9 seconds and n 5 ft at
7 seconds. 
.mon...ne winds 15 to 20 kt with gusts up to 25 kt. seas 6 to
9 ft, building to 8 to 11 ft in the afternoon. wave detail: e
9 ft at 10 seconds and se 7 ft at 15 seconds, becoming e 10 ft at
11 seconds and ne 3 ft at 3 seconds. 
.mon night...ne winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. seas 8 to 11 ft. wave detail: e 11 ft at
11 seconds and ne 3 ft at 3 seconds. a chance of showers. 
.tue...ne winds 20 to 25 kt with gusts up to 30 kt. seas 8 to
11 ft. 
.tue night...ne winds 25 to 30 kt. seas 6 to 9 ft. 
.wed and wed night...ne winds 25 to 30 kt with gusts up to 35 kt.
seas 7 to 10 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 171405
cwfbox
expires:202610180300;;255561

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 am edt sat oct 17 2026

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


anz255-180300-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
1005 am edt sat oct 17 2026

...small craft advisory in effect through sunday morning...

.this afternoon...n winds 20 to 25 kt with gusts up to 30 kt.
seas 4 to 6 ft. wave detail: n 5 ft at 5 seconds and sw 4 ft at
7 seconds. rain.
.tonight...n winds 20 to 25 kt with gusts up to 30 kt. seas 4 to
6 ft. wave detail: n 5 ft at 5 seconds and s 2 ft at 7 seconds. 
.sun...ne winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. wave detail: n 5 ft at 5 seconds and e 2 ft at 9 seconds. 
.sun night...ne winds 10 to 15 kt, becoming e 15 to 20 kt after
midnight. gusts up to 25 kt. seas 5 to 7 ft. wave detail: e 7 ft
at 8 seconds and e 5 ft at 14 seconds. 
.mon...ne winds 20 to 25 kt. seas 6 to 9 ft, building to 8 to
11 ft in the afternoon. wave detail: e 9 ft at 10 seconds and e
9 ft at 11 seconds, becoming e 11 ft at 11 seconds and e 10 ft at
10 seconds. a chance of showers in the afternoon. 
.mon night...ne winds 20 to 25 kt, increasing to 25 to 30 kt
after midnight. seas 8 to 11 ft. wave detail: e 11 ft at
11 seconds and ne 5 ft at 5 seconds. a chance of showers. 
.tue...ne winds 25 to 30 kt. seas 7 to 10 ft. 
.tue night...ne winds 25 to 35 kt with gusts up to 40 kt. seas
6 to 9 ft. 
.wed and wed night...ne winds 30 to 35 kt with gusts up to 40 kt.
seas 7 to 10 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.

$$