fzus51 kbox 100804
cwfbox
expires:202609102100;;677346

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

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


anz231-102100-
cape cod bay-
404 am edt thu sep 10 2026

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

.today...sw winds 15 to 20 kt with gusts up to 40 kt, becoming w
10 to 15 kt with gusts up to 25 kt this afternoon. seas 3 to
5 ft, subsiding to 2 to 3 ft this afternoon. wave detail: sw 3 ft
at 4 seconds and e 1 foot at 5 seconds, becoming w 2 ft at
3 seconds and se 1 foot at 5 seconds. a chance of showers this
morning. 
.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 100804
cwfbox
expires:202609102100;;677350

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

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


anz232-102100-
nantucket sound-
404 am edt thu sep 10 2026

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

.today...sw winds 20 to 25 kt, diminishing to 15 to 20 kt this
afternoon. gusts up to 35 kt. seas 3 to 5 ft. wave detail: sw
4 ft at 5 seconds and e 1 foot at 5 seconds. a chance of showers
this morning. 
.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 100804
cwfbox
expires:202609102100;;677351

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

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


anz233-102100-
vineyard sound-
404 am edt thu sep 10 2026

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

.today...sw winds 15 to 20 kt with gusts up to 35 kt. seas 4 to
6 ft. wave detail: sw 6 ft at 7 seconds and se 2 ft at
12 seconds. a chance of showers this morning. 
.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 100804
cwfbox
expires:202609102100;;677352

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

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


anz234-102100-
buzzards bay-
404 am edt thu sep 10 2026

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

.today...sw winds 15 to 20 kt. gusts up to 40 kt, decreasing to
30 kt this afternoon. seas 4 to 6 ft, subsiding to 3 to 4 ft this
afternoon. wave detail: sw 5 ft at 7 seconds and e 1 foot at
5 seconds, becoming sw 4 ft at 8 seconds and se 1 foot at
5 seconds. a chance of showers this morning. 
.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 100804
cwfbox
expires:202609102100;;677353

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

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


anz235-102100-
rhode island sound-
404 am edt thu sep 10 2026

...small craft advisory in effect through this evening...

.today...sw winds 20 to 25 kt, diminishing to around 15 kt this
afternoon. gusts up to 30 kt. seas 5 to 7 ft. wave detail: s 7 ft
at 6 seconds and se 3 ft at 11 seconds. a chance of showers this
morning. 
.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 100804
cwfbox
expires:202609102100;;677356

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

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


anz236-102100-
narragansett bay-
404 am edt thu sep 10 2026

...small craft advisory in effect through this evening...

.today...w winds 10 to 15 kt with gusts up to 30 kt. waves 3 to
5 ft, subsiding to 2 to 3 ft this afternoon. a chance of showers
this morning. 
.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 100804
cwfbox
expires:202609102100;;677344

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

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


anz250-102100-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
404 am edt thu sep 10 2026

...small craft advisory in effect through this evening...

.today...sw winds 20 to 25 kt, becoming w 10 to 15 kt this
afternoon. gusts up to 30 kt. seas 4 to 6 ft, subsiding to 2 to
4 ft this afternoon. wave detail: sw 5 ft at 5 seconds and se
2 ft at 8 seconds, becoming w 3 ft at 5 seconds and se 2 ft at
9 seconds. a chance of showers this morning. 
.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 100804
cwfbox
expires:202609102100;;677347

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

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


anz254-102100-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
404 am edt thu sep 10 2026

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

.today...sw winds 20 to 25 kt, diminishing to 15 to 20 kt this
afternoon. 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 chance of showers
this morning. 
.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 100804
cwfbox
expires:202609102100;;677348

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

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


anz255-102100-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
404 am edt thu sep 10 2026

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

.today...sw winds 20 to 25 kt, diminishing to 15 to 20 kt this
afternoon. gusts up to 35 kt. seas 5 to 8 ft. wave detail: sw
7 ft at 8 seconds and se 1 foot at 5 seconds. a chance of showers
this morning. 
.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.

$$