fzus51 kbox 100504
cwfbox
expires:202609101800;;668783

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

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


anz231-101800-
cape cod bay-
104 am edt thu sep 10 2026

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

.rest of tonight...sw winds around 20 kt with gusts up to 40 kt.
seas 3 to 5 ft. wave detail: sw 3 ft at 4 seconds and e 1 foot at
4 seconds. a chance of showers. 
.thu...sw winds 15 to 20 kt with gusts up to 40 kt, becoming w
10 to 15 kt with gusts up to 25 kt in the afternoon. seas 3 to
5 ft, subsiding to 2 to 3 ft in the afternoon. wave detail: sw
3 ft at 4 seconds and e 1 foot at 5 seconds, becoming sw 2 ft at
3 seconds and se 1 foot at 4 seconds. a chance of showers in the
morning. 
.thu night...w winds 10 to 15 kt with gusts up to 20 kt. seas
around 2 ft. wave detail: w 2 ft at 3 seconds and se 1 foot at
9 seconds. 
.fri...nw winds 5 to 10 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: n 1 foot at 4 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 9 seconds. 
.sun and sun night...s winds 5 to 10 kt, becoming sw. seas around
2 ft. a chance of showers. 
.mon and mon night...nw winds 5 to 10 kt, becoming se. 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 100504
cwfbox
expires:202609101800;;668787

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

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


anz232-101800-
nantucket sound-
104 am edt thu sep 10 2026

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

.rest of tonight...sw winds 20 to 25 kt with gusts up to 35 kt.
seas 3 to 5 ft. wave detail: sw 5 ft at 5 seconds and e 1 foot at
4 seconds. a slight chance of showers. 
.thu...sw winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. gusts up to 35 kt. seas 3 to 5 ft. wave detail: sw
5 ft at 5 seconds and e 1 foot at 5 seconds. a chance of showers
in the morning. 
.thu night...w winds 10 to 15 kt, becoming nw after midnight.
gusts up to 25 kt. seas 2 to 4 ft. wave detail: w 3 ft at
5 seconds and se 1 foot at 9 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 sw 1 foot at
5 seconds. 
.sat and sat night...s winds 5 to 10 kt. seas around 2 ft. wave
detail: ne 1 foot at 4 seconds and sw 1 foot at 6 seconds. 
.sun and sun night...s winds 10 to 15 kt with gusts up to 20 kt,
becoming sw. seas around 2 ft. a chance of showers. 
.mon and mon night...nw winds 5 to 10 kt, becoming e. 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 100504
cwfbox
expires:202609101800;;668788

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

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


anz233-101800-
vineyard sound-
104 am edt thu sep 10 2026

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

.rest of tonight...sw winds 20 to 25 kt with gusts up to 35 kt.
seas 4 to 6 ft. wave detail: sw 6 ft at 7 seconds and s 3 ft at
3 seconds. a slight chance of showers. 
.thu...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 s 5 ft at 10 seconds.
a chance of showers in the morning. 
.thu night...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
7 seconds and se 1 foot at 11 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 1 foot 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 7 seconds and n 1 foot at
2 seconds. 
.sat and sat night...s winds 5 to 10 kt. seas around 2 ft. wave
detail: se 2 ft at 4 seconds and sw 2 ft at 7 seconds. 
.sun and sun night...s winds 10 to 15 kt, becoming sw 5 to 10 kt.
seas around 2 ft. a chance of showers.
.mon and mon night...w winds 5 to 10 kt, becoming se. 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 100504
cwfbox
expires:202609101800;;668789

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

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


anz234-101800-
buzzards bay-
104 am edt thu sep 10 2026

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

.rest of tonight...sw winds 20 to 25 kt with gusts up to 40 kt.
seas 4 to 6 ft. wave detail: s 6 ft at 5 seconds and se 1 foot at
10 seconds. a slight chance of showers. 
.thu...sw winds 15 to 20 kt. gusts up to 40 kt, decreasing to
30 kt in the afternoon. seas 4 to 6 ft, subsiding to 3 to 4 ft in
the afternoon. wave detail: sw 6 ft at 7 seconds and se 3 ft at
10 seconds, becoming sw 4 ft at 7 seconds and s 4 ft at
10 seconds. a chance of showers in the morning. 
.thu night...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: sw 3 ft
at 7 seconds and se 1 foot at 11 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: w 2 ft at 7 seconds
and n 1 foot at 4 seconds. 
.fri night...w winds 5 to 10 kt, becoming n after midnight. seas
around 2 ft. wave detail: sw 2 ft at 7 seconds and n 1 foot at
2 seconds. 
.sat and sat night...s winds 5 to 10 kt with gusts up to 20 kt.
seas around 2 ft. wave detail: se 2 ft at 4 seconds and sw 1 foot
at 7 seconds. 
.sun and sun night...s winds 10 to 15 kt with gusts up to 20 kt,
becoming sw 5 to 10 kt. seas around 2 ft. a chance of showers. 
.mon and mon night...w winds 5 to 10 kt, becoming se. seas 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 100504
cwfbox
expires:202609101800;;668790

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

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


anz235-101800-
rhode island sound-
104 am edt thu sep 10 2026

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

.rest of tonight...sw winds 20 to 25 kt with gusts up to 35 kt.
seas 5 to 7 ft. wave detail: sw 7 ft at 7 seconds and se 4 ft at
4 seconds. a chance of showers.
.thu...sw winds 20 to 25 kt, diminishing to around 15 kt in the
afternoon. gusts up to 30 kt. seas 5 to 7 ft. wave detail: sw
7 ft at 7 seconds and s 4 ft at 10 seconds. a chance of showers
in the morning. 
.thu night...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 se 1 foot at 10 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 1 foot at 3 seconds. 
.fri night...w winds 5 to 10 kt, becoming n after midnight. seas
2 to 3 ft. wave detail: sw 3 ft at 7 seconds and ne 1 foot at
2 seconds. 
.sat and sat night...s winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: s 3 ft at 7 seconds and se 2 ft at 3 seconds. 
.sun and sun night...s winds around 10 kt, becoming sw. seas
around 2 ft. a chance of showers. 
.mon and mon night...w winds 5 to 10 kt, becoming se. 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 100504
cwfbox
expires:202609101800;;668793

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

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


anz236-101800-
narragansett bay-
104 am edt thu sep 10 2026

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

.rest of tonight...sw winds 15 to 20 kt with gusts up to 30 kt.
waves 3 to 5 ft. a chance of showers. 
.thu...w winds 10 to 15 kt with gusts up to 30 kt. waves 3 to
5 ft, subsiding to 2 to 3 ft in the afternoon. a chance of
showers in the morning. 
.thu night...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 and sat night...s winds 5 to 10 kt. waves around 2 ft. 
.sun and sun night...s winds 5 to 10 kt, becoming sw. waves
around 2 ft. a chance of showers. 
.mon and mon night...w winds 5 to 10 kt, becoming s. 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 100504
cwfbox
expires:202609101800;;668781

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

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


anz250-101800-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
104 am edt thu sep 10 2026

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

.rest of tonight...sw winds 20 to 25 kt with gusts up to 30 kt.
seas 4 to 6 ft. wave detail: s 5 ft at 5 seconds and e 2 ft at
5 seconds. patchy fog. a chance of showers. 
.thu...sw winds 20 to 25 kt, becoming w 10 to 15 kt in the
afternoon. gusts up to 30 kt. seas 4 to 6 ft, subsiding to 2 to
4 ft in the afternoon. wave detail: sw 5 ft at 5 seconds and se
2 ft at 9 seconds, becoming sw 3 ft at 5 seconds and se 2 ft at
9 seconds. a chance of showers in the morning. 
.thu night...w winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft. wave detail: w 2 ft at 4 seconds and se 2 ft at
10 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 and sat night...s winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. wave detail: s 2 ft at 3 seconds and n 1 foot
at 4 seconds. 
.sun and sun night...sw winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. a chance of showers. 
.mon and mon night...nw winds 5 to 10 kt, becoming se. 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 100504
cwfbox
expires:202609101800;;668784

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

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


anz254-101800-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
104 am edt thu sep 10 2026

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

.rest of tonight...sw winds 20 to 25 kt with gusts up to 30 kt.
seas 3 to 5 ft. wave detail: sw 5 ft at 5 seconds and e 1 foot at
4 seconds. a slight chance of showers. 
.thu...sw 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: sw
6 ft at 6 seconds and e 1 foot at 5 seconds. a chance of showers
in the morning. 
.thu night...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 se 1 foot at 10 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 1 foot at
3 seconds. 
.fri night...sw winds 5 to 10 kt, becoming nw after midnight.
seas 2 to 3 ft. wave detail: s 2 ft at 6 seconds and ne 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 and sun night...s winds 10 to 15 kt with gusts up to 20 kt,
becoming sw. seas 2 to 3 ft. a chance of showers. 
.mon and mon night...nw winds 5 to 10 kt, becoming e. 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 100504
cwfbox
expires:202609101800;;668785

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

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


anz255-101800-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
104 am edt thu sep 10 2026

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

.rest of tonight...sw winds 20 to 25 kt with gusts up to 35 kt.
seas 5 to 7 ft. wave detail: sw 7 ft at 7 seconds and e 2 ft at
3 seconds. a slight chance of showers. 
.thu...sw winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. gusts up to 35 kt. seas 5 to 8 ft. wave detail: sw
8 ft at 7 seconds and e 1 foot at 5 seconds. a chance of showers
in the morning. 
.thu night...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 se 1 foot at 9 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 1 foot 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 7 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 3 ft at 7 seconds and ne 1 foot at 5 seconds. 
.sun and sun night...s winds 10 to 15 kt, becoming sw. seas
around 2 ft. a chance of showers. 
.mon and mon night...nw winds 5 to 10 kt, becoming e. 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.

$$