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MA- Cape Cod

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fzus51 kbox 101404
cwfbox
expires:202609110300;;689190

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu sep 10 2026

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


anz231-110300-
cape cod bay-
1004 am edt thu sep 10 2026

...gale warning in effect until noon edt today...

.this afternoon...sw winds 10 to 15 kt with gusts up to 30 kt.
seas 2 to 4 ft. wave detail: sw 2 ft at 4 seconds and se 1 foot
at 5 seconds. 
.tonight...w winds 10 to 15 kt with gusts up to 20 kt. seas
around 2 ft. wave detail: n 2 ft at 3 seconds and w 1 foot at
3 seconds. 
.fri...nw winds 5 to 10 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: n 2 ft at 3 seconds and se 1 foot at
10 seconds. 
.fri night...sw winds around 5 kt, becoming n after midnight.
seas 1 foot or less. wave detail: n 1 foot at 4 seconds and se
1 foot at 10 seconds. 
.sat and sat night...s winds 5 to 10 kt with gusts up to 20 kt.
seas around 2 ft. wave detail: n 1 foot at 4 seconds and se
1 foot at 10 seconds. 
.sun...s winds 5 to 10 kt with gusts up to 20 kt. seas around
2 ft. wave detail: se 1 foot at 3 seconds and se 1 foot at
10 seconds. numerous showers. 
.sun night...sw winds 5 to 10 kt. seas around 2 ft. scattered
showers. 
.mon and mon night...nw winds 5 to 10 kt with gusts up to 20 kt,
becoming ne. 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 101404
cwfbox
expires:202609110300;;689194

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu sep 10 2026

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


anz232-110300-
nantucket sound-
1004 am edt thu sep 10 2026

...gale warning in effect until noon edt today...

.this afternoon...sw winds 15 to 20 kt with gusts up to 30 kt.
seas 3 to 5 ft. wave detail: sw 4 ft at 5 seconds and e 1 foot at
5 seconds. 
.tonight...w winds 10 to 15 kt, becoming nw after midnight. gusts
up to 25 kt. seas 2 to 4 ft. wave detail: n 3 ft at 3 seconds and
w 3 ft at 6 seconds. 
.fri...n winds around 10 kt with gusts up to 20 kt, becoming nw
in the afternoon. seas 2 to 3 ft. wave detail: n 2 ft at
4 seconds and se 1 foot at 10 seconds. 
.fri night...sw winds 5 to 10 kt, becoming n after midnight. seas
around 2 ft. wave detail: ne 1 foot at 3 seconds and w 1 foot at
5 seconds. 
.sat and sat night...s winds 10 to 15 kt. seas around 2 ft. wave
detail: ne 1 foot at 4 seconds and sw 1 foot at 6 seconds. 
.sun...s winds 10 to 15 kt with gusts up to 20 kt. seas around
2 ft. wave detail: se 2 ft at 3 seconds and se 1 foot at
10 seconds. numerous showers. 
.sun night...sw winds 10 to 15 kt. seas around 2 ft. scattered
showers. 
.mon and mon night...nw winds 10 to 15 kt, becoming ne 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 101404
cwfbox
expires:202609110300;;689195

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu sep 10 2026

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


anz233-110300-
vineyard sound-
1004 am edt thu sep 10 2026

...gale warning in effect until noon edt today...

.this afternoon...sw winds 15 to 20 kt with gusts up to 30 kt.
seas 4 to 6 ft. wave detail: sw 6 ft at 7 seconds and se 2 ft at
12 seconds. 
.tonight...w winds 10 to 15 kt, becoming nw after midnight. gusts
up to 20 kt. seas 2 to 4 ft. wave detail: sw 4 ft at 8 seconds
and n 3 ft at 3 seconds. 
.fri...n winds 5 to 10 kt with gusts up to 20 kt, becoming w in
the afternoon. seas 2 to 3 ft. wave detail: w 3 ft at 7 seconds
and n 2 ft at 3 seconds. 
.fri night...w winds 5 to 10 kt, becoming n after midnight. seas
around 2 ft. wave detail: sw 2 ft at 6 seconds and n 1 foot at
3 seconds. 
.sat and sat night...s winds 5 to 10 kt. seas around 2 ft. wave
detail: n 2 ft at 4 seconds and sw 2 ft at 7 seconds. 
.sun...s winds 10 to 15 kt. seas around 2 ft. wave detail: s 2 ft
at 5 seconds and se 1 foot at 10 seconds. numerous showers. 
.sun night through mon night...ne winds 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 101404
cwfbox
expires:202609110300;;689196

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu sep 10 2026

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


anz234-110300-
buzzards bay-
1004 am edt thu sep 10 2026

...gale warning in effect until noon edt today...

.this afternoon...sw winds around 15 kt with gusts up to 30 kt.
seas 3 to 5 ft. wave detail: sw 4 ft at 7 seconds and se 1 foot
at 5 seconds. 
.tonight...w winds 10 to 15 kt, becoming nw 5 to 10 kt after
midnight. gusts up to 20 kt. seas 2 to 3 ft. wave detail: n 3 ft
at 3 seconds and sw 3 ft at 7 seconds. 
.fri...n winds 5 to 10 kt with gusts up to 20 kt, becoming w in
the afternoon. seas around 2 ft. wave detail: n 2 ft at 3 seconds
and w 2 ft at 7 seconds. 
.fri night...w winds 5 to 10 kt, becoming n after midnight. seas
around 2 ft. wave detail: sw 2 ft at 6 seconds and n 1 foot at
4 seconds. 
.sat and sat night...s winds 5 to 10 kt with gusts up to 20 kt.
seas around 2 ft. wave detail: n 1 foot at 2 seconds and sw
1 foot at 7 seconds. 
.sun...s winds 10 to 15 kt with gusts up to 20 kt. seas around
2 ft. wave detail: s 2 ft at 5 seconds and se 1 foot at
9 seconds. numerous showers. 
.sun night through mon night...ne winds 5 to 10 kt with gusts up
to 20 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 101404
cwfbox
expires:202609110300;;689197

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu sep 10 2026

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


anz235-110300-
rhode island sound-
1004 am edt thu sep 10 2026

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

.this afternoon...sw winds 15 to 20 kt with gusts up to 30 kt.
seas 5 to 7 ft. wave detail: s 6 ft at 6 seconds and se 3 ft at
10 seconds. 
.tonight...w winds 10 to 15 kt, becoming nw 5 to 10 kt after
midnight. gusts up to 20 kt. seas 3 to 5 ft. wave detail: sw 5 ft
at 7 seconds and n 4 ft at 3 seconds. 
.fri...n winds 5 to 10 kt with gusts up to 20 kt, becoming w in
the afternoon. seas 2 to 3 ft. wave detail: sw 3 ft at 7 seconds
and n 2 ft at 3 seconds. 
.fri night...w winds 5 to 10 kt, becoming n after midnight. seas
2 to 3 ft. wave detail: s 3 ft at 7 seconds and ne 1 foot at
4 seconds. 
.sat...ne winds 5 to 10 kt, becoming se in the afternoon. seas
2 to 3 ft. wave detail: s 2 ft at 7 seconds and n 1 foot at
2 seconds. 
.sat night...s winds around 10 kt. seas around 2 ft. wave detail:
se 2 ft at 3 seconds and s 2 ft at 6 seconds. scattered showers
after midnight. 
.sun...s winds 10 to 15 kt. seas around 2 ft. numerous showers. 
.sun night through mon night...ne winds 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 101404
cwfbox
expires:202609110300;;689200

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu sep 10 2026

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


anz236-110300-
narragansett bay-
1004 am edt thu sep 10 2026

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

.this afternoon...w winds 10 to 15 kt with gusts up to 25 kt.
waves 2 to 4 ft. 
.tonight...nw winds 5 to 10 kt. gusts up to 20 kt in the evening.
waves 2 to 3 ft. 
.fri...n winds 5 to 10 kt, becoming w in the afternoon. waves
around 2 ft. 
.fri night...nw winds around 5 kt. waves around 2 ft. 
.sat...ne winds around 5 kt, becoming s in the afternoon. waves
around 2 ft. 
.sat night...s winds 5 to 10 kt. waves around 2 ft in the
evening, then 1 foot or less. scattered showers after midnight. 
.sun...s winds 5 to 10 kt. waves around 2 ft. numerous showers. 
.sun night through mon night...ne winds 5 to 10 kt. waves 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 101404
cwfbox
expires:202609110300;;689188

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu sep 10 2026

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


anz250-110300-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
1004 am edt thu sep 10 2026

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

.this afternoon...sw winds 15 to 20 kt, becoming w 10 to 15 kt.
gusts up to 25 kt. seas 3 to 5 ft. wave detail: sw 4 ft at
5 seconds and se 2 ft at 9 seconds. 
.tonight...w winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: n 3 ft at 3 seconds and w 2 ft at 4 seconds. 
.fri...nw winds 10 to 15 kt, becoming w 5 to 10 kt in the
afternoon. gusts up to 20 kt. seas 2 to 3 ft. wave detail: n 2 ft
at 4 seconds and se 1 foot at 10 seconds. 
.fri night...w winds 5 to 10 kt, becoming n after midnight. seas
around 2 ft. wave detail: n 1 foot at 4 seconds and se 1 foot at
10 seconds. 
.sat...ne winds around 5 kt, becoming se with gusts up to 20 kt
in the afternoon. seas around 2 ft. wave detail: n 1 foot at
3 seconds and se 1 foot at 10 seconds. 
.sat night...s winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas 2 to 3 ft. wave detail: se 2 ft at 3 seconds and se
1 foot at 10 seconds. 
.sun...s winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. numerous showers. 
.sun night through mon night...ne winds 5 to 10 kt with gusts up
to 20 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 101404
cwfbox
expires:202609110300;;689191

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu sep 10 2026

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


anz254-110300-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
1004 am edt thu sep 10 2026

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

.this afternoon...sw winds 15 to 20 kt with gusts up to 30 kt.
seas 5 to 7 ft. wave detail: sw 5 ft at 6 seconds and se 1 foot
at 5 seconds. a slight chance of showers. 
.tonight...w winds 10 to 15 kt, becoming nw after midnight. gusts
up to 25 kt. seas 3 to 5 ft. wave detail: w 4 ft at 6 seconds and
n 2 ft at 3 seconds. 
.fri...nw winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
4 ft. wave detail: nw 3 ft at 6 seconds and n 2 ft at 3 seconds. 
.fri night...sw winds 5 to 10 kt, becoming nw after midnight.
seas 2 to 3 ft. wave detail: sw 2 ft at 6 seconds and n 1 foot at
5 seconds. 
.sat and sat night...s winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: s 2 ft at 6 seconds and n 1 foot at 5 seconds. 
.sun...s winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: se 3 ft at 5 seconds and se 1 foot at
10 seconds. numerous showers. 
.sun night...sw winds around 10 kt. seas 2 to 3 ft. a chance of
showers. 
.mon and mon night...nw winds 10 to 15 kt, becoming ne 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 101404
cwfbox
expires:202609110300;;689192

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu sep 10 2026

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


anz255-110300-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
1004 am edt thu sep 10 2026

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

.this afternoon...sw winds 15 to 20 kt with gusts up to 30 kt.
seas 5 to 8 ft. wave detail: sw 7 ft at 8 seconds and e 1 foot at
5 seconds. 
.tonight...w winds 10 to 15 kt, becoming nw after midnight. gusts
up to 25 kt. seas 4 to 6 ft. wave detail: sw 6 ft at 8 seconds
and n 3 ft at 3 seconds. 
.fri...n winds around 10 kt with gusts up to 20 kt, becoming nw
in the afternoon. seas 2 to 4 ft. wave detail: sw 4 ft at
7 seconds and n 3 ft at 3 seconds. 
.fri night...sw winds 5 to 10 kt, becoming n after midnight. seas
2 to 3 ft. wave detail: sw 3 ft at 6 seconds and n 1 foot at
3 seconds. 
.sat and sat night...s winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: sw 2 ft at 7 seconds and ne 1 foot at 5 seconds. 
.sun...s winds 10 to 15 kt. seas 2 to 3 ft. wave detail: se 3 ft
at 5 seconds and se 1 foot at 10 seconds. numerous showers. 
.sun night...sw winds around 10 kt. seas 2 to 3 ft. scattered
showers. 
.mon and mon night...nw winds 10 to 15 kt, becoming ne 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.

$$
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