fzus51 kbox 161404
cwfbox
expires:202510170300;;235178

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu oct 16 2025

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


anz231-170300-
cape cod bay-
1004 am edt thu oct 16 2025

...gale warning in effect through late tonight...

.this afternoon...n winds 20 to 25 kt. gusts up to 35 kt. seas
3 to 5 ft. wave detail: n 5 ft at 6 seconds and se 2 ft at
10 seconds. 
.tonight...n winds 25 to 30 kt with gusts up to 40 kt. seas 5 to
7 ft. wave detail: n 7 ft at 6 seconds and se 2 ft at 9 seconds. 
.fri...n winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. gusts up to 30 kt. seas 5 to 7 ft. wave detail: n 7 ft
at 7 seconds and e 2 ft at 9 seconds. 
.fri night...n winds 10 to 15 kt with gusts up to 25 kt. seas
3 to 5 ft. wave detail: n 5 ft at 6 seconds and ne 5 ft at
11 seconds. 
.sat...n winds 10 to 15 kt with gusts up to 20 kt, diminishing to
5 to 10 kt in the afternoon. seas 3 to 5 ft. wave detail: ne 5 ft
at 11 seconds and n 3 ft at 5 seconds. 
.sat night...sw winds around 5 kt. seas 2 to 3 ft. wave detail: e
3 ft at 11 seconds and n 2 ft at 5 seconds. 
.sun...s winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. 
.sun night and mon...s winds 15 to 20 kt, becoming sw. gusts up
to 25 kt. seas 3 to 4 ft. showers likely. 
.mon night...w winds around 15 kt with gusts up to 25 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 161404
cwfbox
expires:202510170300;;235182

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu oct 16 2025

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


anz232-170300-
nantucket sound-
1004 am edt thu oct 16 2025

...gale warning in effect through friday morning...

.this afternoon...n winds 20 to 25 kt with gusts up to 30 kt.
seas 3 to 4 ft. wave detail: n 3 ft at 5 seconds and e 2 ft at
10 seconds. 
.tonight...n winds 25 to 30 kt with gusts up to 35 kt. seas 4 to
6 ft. wave detail: n 4 ft at 5 seconds and e 1 foot at 9 seconds.
.fri...n winds 20 to 25 kt with gusts up to 30 kt. seas 4 to
6 ft. wave detail: n 4 ft at 4 seconds and e 2 ft at 9 seconds. 
.fri night...n winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. wave detail: n 3 ft at 4 seconds and e 3 ft at
11 seconds. 
.sat...n winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. seas 3 to 5 ft. wave detail: e 4 ft at 12 seconds and
n 2 ft at 4 seconds. 
.sat night...nw winds 5 to 10 kt, becoming sw after midnight.
seas 2 to 4 ft. wave detail: e 3 ft at 11 seconds and n 1 foot at
4 seconds. 
.sun...s winds 15 to 20 kt. seas 2 to 4 ft. 
.sun night...s winds 20 to 25 kt. seas 3 to 4 ft. a chance of
showers. 
.mon...sw winds 20 to 25 kt. seas 3 to 4 ft. showers likely. 
.mon night...w winds 15 to 20 kt with gusts up to 25 kt. seas
3 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 161404
cwfbox
expires:202510170300;;235183

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu oct 16 2025

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


anz233-170300-
vineyard sound-
1004 am edt thu oct 16 2025

...small craft advisory in effect through friday afternoon...

.this afternoon...n winds 15 to 20 kt with gusts up to 30 kt.
seas around 3 ft. wave detail: n 2 ft at 4 seconds and se 2 ft at
10 seconds. 
.tonight...n winds 20 to 25 kt with gusts up to 30 kt. seas
around 3 ft. wave detail: n 2 ft at 4 seconds and se 1 foot at
9 seconds. 
.fri...n winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
3 ft. wave detail: n 2 ft at 4 seconds and se 1 foot at
9 seconds. 
.fri night...n winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas around 2 ft. wave detail: n 2 ft at 4 seconds and e
2 ft at 12 seconds. 
.sat...n winds 10 to 15 kt, becoming nw 5 to 10 kt in the
afternoon. seas around 2 ft. wave detail: e 2 ft at 12 seconds
and n 1 foot at 3 seconds. 
.sat night...sw winds around 5 kt. seas around 2 ft. wave detail:
e 2 ft at 12 seconds and n 1 foot at 3 seconds. 
.sun...s winds 15 to 20 kt. seas 2 to 3 ft. 
.sun night...s winds 20 to 25 kt. seas 3 to 4 ft. showers likely.
.mon...sw winds 20 to 25 kt. seas 3 to 4 ft. showers likely. 
.mon night...w winds 15 to 20 kt with gusts up to 25 kt. seas
3 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 161404
cwfbox
expires:202510170300;;235184

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu oct 16 2025

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


anz234-170300-
buzzards bay-
1004 am edt thu oct 16 2025

...small craft advisory in effect through friday afternoon...

.this afternoon...n winds 15 to 20 kt with gusts up to 30 kt.
seas around 3 ft. wave detail: n 2 ft at 4 seconds and se 2 ft at
10 seconds. 
.tonight...n winds 15 to 20 kt with gusts up to 30 kt. seas
around 3 ft. wave detail: n 2 ft at 4 seconds and se 1 foot at
9 seconds. 
.fri...n winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
3 ft. wave detail: n 2 ft at 4 seconds and e 1 foot at 9 seconds.
.fri night...n winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas around 2 ft. wave detail: n 2 ft at 4 seconds and e
2 ft at 12 seconds. 
.sat...n winds 5 to 10 kt. seas 1 foot or less. wave detail: n
1 foot at 3 seconds and e 1 foot at 12 seconds. 
.sat night...sw winds around 5 kt. seas 1 foot or less. wave
detail: n 1 foot at 2 seconds and w 1 foot at 2 seconds. 
.sun...s winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
4 ft. 
.sun night and mon...s winds 20 to 25 kt, becoming sw. seas 3 to
4 ft. showers likely. 
.mon night...w 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 161404
cwfbox
expires:202510170300;;235185

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu oct 16 2025

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


anz235-170300-
rhode island sound-
1004 am edt thu oct 16 2025

...small craft advisory in effect through friday afternoon...

.this afternoon...n winds around 20 kt with gusts up to 30 kt.
seas 3 to 5 ft. wave detail: n 4 ft at 4 seconds and se 3 ft at
10 seconds. 
.tonight...n winds 20 to 25 kt with gusts up to 30 kt. seas 3 to
5 ft. wave detail: n 4 ft at 5 seconds and se 2 ft at 9 seconds. 
.fri...n winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
4 ft. wave detail: n 3 ft at 4 seconds and se 2 ft at 9 seconds. 
.fri night...n winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas 2 to 3 ft. wave detail: n 2 ft at 4 seconds and e
1 foot at 9 seconds. 
.sat...n winds 5 to 10 kt, becoming nw in the afternoon. seas
2 to 3 ft. wave detail: e 2 ft at 13 seconds and n 1 foot at
3 seconds. 
.sat night...sw winds 5 to 10 kt. seas around 2 ft. wave detail:
e 2 ft at 12 seconds and w 1 foot at 2 seconds. 
.sun...s winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
3 ft. 
.sun night...s winds 20 to 25 kt. seas 3 to 4 ft. showers likely.
.mon...w winds 20 to 25 kt. seas 3 to 5 ft. showers likely. 
.mon night...w 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 161404
cwfbox
expires:202510170300;;235188

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu oct 16 2025

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


anz236-170300-
narragansett bay-
1004 am edt thu oct 16 2025

...small craft advisory in effect through friday afternoon...

.this afternoon...n winds 15 to 20 kt with gusts up to 25 kt.
waves 2 to 3 ft. 
.tonight...n winds 15 to 20 kt with gusts up to 30 kt. waves 2 to
3 ft. 
.fri...n winds 10 to 15 kt with gusts up to 25 kt. waves 2 to
3 ft. 
.fri night...n winds 5 to 10 kt. waves around 2 ft in the
evening, then 1 foot or less. 
.sat...n winds 5 to 10 kt, becoming nw in the afternoon. waves
around 2 ft. 
.sat night...sw winds around 5 kt. waves 1 foot or less. 
.sun...s winds 15 to 20 kt with gusts up to 25 kt. waves 2 to
3 ft. 
.sun night and mon...s winds 15 to 20 kt, becoming sw. gusts up
to 25 kt. waves 2 to 4 ft. showers likely. 
.mon night...w winds 10 to 15 kt with gusts up to 25 kt. waves
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 161404
cwfbox
expires:202510170300;;235176

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu oct 16 2025

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


anz250-170300-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
1004 am edt thu oct 16 2025

...gale warning in effect through friday morning...

.this afternoon...n winds 20 to 25 kt with gusts up to 35 kt.
seas 6 to 8 ft. wave detail: n 7 ft at 7 seconds and se 3 ft at
10 seconds. 
.tonight...n winds 25 to 30 kt with gusts up to 40 kt. seas 6 to
9 ft. wave detail: n 9 ft at 7 seconds and se 2 ft at 9 seconds. 
.fri...n winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. gusts up to 30 kt. seas 6 to 9 ft. wave detail: n 9 ft
at 7 seconds and se 1 foot at 9 seconds. 
.fri night...n winds 15 to 20 kt with gusts up to 25 kt. seas
5 to 8 ft. wave detail: ne 7 ft at 11 seconds and ne 6 ft at
8 seconds. 
.sat...n winds 10 to 15 kt with gusts up to 20 kt, diminishing to
5 to 10 kt in the afternoon. seas 5 to 8 ft. wave detail: e 7 ft
at 10 seconds and ne 1 foot at 5 seconds. 
.sat night...sw winds 5 to 10 kt. seas 4 to 6 ft. wave detail: e
5 ft at 11 seconds. 
.sun...s winds 10 to 15 kt with gusts up to 20 kt. seas 4 to
5 ft. 
.sun night and mon...s winds 15 to 20 kt, becoming sw. gusts up
to 25 kt. seas around 4 ft. showers likely. vsby 1 to 3 nm. 
.mon night...w winds around 15 kt with gusts up to 20 kt. seas
around 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 161404
cwfbox
expires:202510170300;;235179

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu oct 16 2025

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


anz254-170300-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
1004 am edt thu oct 16 2025

...gale warning in effect through friday morning...

.this afternoon...n winds 20 to 25 kt. gusts up to 35 kt. seas
5 to 7 ft. wave detail: n 7 ft at 7 seconds and se 4 ft at
10 seconds. a slight chance of showers. 
.tonight...n winds 25 to 30 kt with gusts up to 35 kt. seas 7 to
10 ft. wave detail: n 10 ft at 7 seconds and se 3 ft at
9 seconds. a chance of showers. 
.fri...n winds 20 to 25 kt with gusts up to 30 kt. seas 7 to
10 ft. wave detail: n 10 ft at 7 seconds and e 9 ft at 9 seconds.
.fri night...n winds 20 to 25 kt with gusts up to 30 kt,
diminishing to 15 to 20 kt after midnight. seas 7 to 10 ft. wave
detail: ne 8 ft at 9 seconds and nw 1 foot at 4 seconds. 
.sat...n winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. seas 6 to 9 ft. wave detail: ne 8 ft at 11 seconds and
n 1 foot at 4 seconds. 
.sat night...nw winds 5 to 10 kt, becoming sw after midnight.
seas 5 to 7 ft. wave detail: e 6 ft at 11 seconds. 
.sun...s winds 10 to 15 kt with gusts up to 20 kt. seas 5 to
7 ft. 
.sun night...s winds 15 to 20 kt with gusts up to 25 kt. seas
4 to 5 ft. a chance of showers. 
.mon and mon night...sw winds 15 to 20 kt, becoming w. gusts up
to 25 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 161404
cwfbox
expires:202510170300;;235180

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu oct 16 2025

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


anz255-170300-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
1004 am edt thu oct 16 2025

...gale warning in effect through friday morning...

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

$$