fzus51 kbox 271403
cwfbox
expires:202609280300;;140923

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt sun sep 27 2026

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


anz231-280300-
cape cod bay-
1003 am edt sun sep 27 2026

...gale warning in effect until 2 pm edt this afternoon...

.this afternoon...e winds 20 to 25 kt, diminishing to 15 to
20 kt. gusts up to 35 kt. seas 5 to 7 ft. wave detail: e 7 ft at
6 seconds. showers likely with isolated tstms. 
.tonight...e winds 15 to 20 kt with gusts up to 30 kt. seas 4 to
6 ft. wave detail: e 5 ft at 6 seconds. showers likely. 
.mon...e 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: ne
4 ft at 7 seconds and e 2 ft at 4 seconds. showers likely, mainly
in the morning. 
.mon night...e winds 5 to 10 kt, becoming n with gusts up to
20 kt after midnight. seas 2 to 4 ft. wave detail: ne 4 ft at
7 seconds. a chance of showers. 
.tue...n winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: n 3 ft at 6 seconds. a chance of showers in
the morning. 
.tue night...n winds 5 to 10 kt. seas around 2 ft. wave detail: n
2 ft at 5 seconds. 
.wed through thu night...sw winds 5 to 10 kt with gusts up to
20 kt. seas around 2 ft.  

winds and seas higher in and near tstms.

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 271403
cwfbox
expires:202609280300;;140927

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt sun sep 27 2026

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


anz232-280300-
nantucket sound-
1003 am edt sun sep 27 2026

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

.this afternoon...e winds 15 to 20 kt with gusts up to 30 kt.
seas 5 to 7 ft. wave detail: e 6 ft at 9 seconds and se 3 ft at
7 seconds. showers likely with isolated tstms. 
.tonight...e winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. wave detail: e 4 ft at 8 seconds and se 3 ft at 7 seconds.
showers likely. 
.mon...e winds 10 to 15 kt. seas 2 to 4 ft. wave detail: e 3 ft
at 9 seconds and se 2 ft at 6 seconds. a chance of showers. 
.mon night...se winds 5 to 10 kt, becoming n after midnight. seas
2 to 4 ft. wave detail: e 3 ft at 9 seconds and s 2 ft at
7 seconds. a chance of showers. 
.tue and tue night...n winds 10 to 15 kt. seas 2 to 4 ft. wave
detail: nw 2 ft at 5 seconds and e 2 ft at 8 seconds. 
.wed through thu night...sw winds 10 to 15 kt with gusts up to
20 kt. seas around 2 ft. wave detail: sw 2 ft at 3 seconds and e
2 ft at 9 seconds.  

winds and seas higher in and near tstms.

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 271403
cwfbox
expires:202609280300;;140928

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt sun sep 27 2026

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


anz233-280300-
vineyard sound-
1003 am edt sun sep 27 2026

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

.this afternoon...e winds 15 to 20 kt with gusts up to 30 kt.
seas 4 to 6 ft. wave detail: e 6 ft at 7 seconds and s 4 ft at
10 seconds. isolated tstms. a chance of showers, then showers
likely. 
.tonight...e winds 10 to 15 kt with gusts up to 25 kt. seas 2 to
4 ft. wave detail: s 4 ft at 8 seconds and e 3 ft at 6 seconds.
showers.
.mon...e winds around 10 kt. seas 2 to 3 ft. wave detail: se 3 ft
at 7 seconds. showers likely, mainly in the morning. 
.mon night...ne winds around 10 kt, becoming n after midnight.
seas 2 to 3 ft. wave detail: se 3 ft at 7 seconds and e 2 ft at
11 seconds. a chance of showers. 
.tue and tue night...n winds 10 to 15 kt. seas 2 to 3 ft. wave
detail: nw 3 ft at 7 seconds and e 1 foot at 8 seconds. 
.wed through thu night...sw winds 10 to 15 kt with gusts up to
20 kt. seas around 2 ft. wave detail: sw 2 ft at 4 seconds and e
1 foot at 12 seconds.  

winds and seas higher in and near tstms.

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 271403
cwfbox
expires:202609280300;;140929

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt sun sep 27 2026

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


anz234-280300-
buzzards bay-
1003 am edt sun sep 27 2026

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

.this afternoon...e winds 15 to 20 kt with gusts up to 30 kt.
seas 3 to 4 ft. wave detail: e 4 ft at 6 seconds. isolated tstms.
a chance of showers, then showers likely. 
.tonight...e winds 10 to 15 kt with gusts up to 25 kt. seas 2 to
3 ft. wave detail: e 3 ft at 4 seconds and se 3 ft at 7 seconds.
showers likely. 
.mon...e winds 10 to 15 kt. seas 2 to 3 ft. wave detail: e 2 ft
at 5 seconds and ne 2 ft at 10 seconds. showers likely, mainly in
the morning. 
.mon night...n winds 10 to 15 kt. seas around 2 ft. wave detail:
e 2 ft at 7 seconds and e 1 foot at 15 seconds. a chance of
showers. 
.tue and tue night...nw winds 10 to 15 kt. seas around 2 ft. wave
detail: w 2 ft at 7 seconds and ne 1 foot at 5 seconds. 
.wed through thu night...sw winds 10 to 15 kt with gusts up to
20 kt. seas around 2 ft. wave detail: sw 2 ft at 3 seconds and e
1 foot at 11 seconds.  

winds and seas higher in and near tstms.

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 271403
cwfbox
expires:202609280300;;140930

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt sun sep 27 2026

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


anz235-280300-
rhode island sound-
1003 am edt sun sep 27 2026

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

.this afternoon...e winds 20 to 25 kt, diminishing to 15 to
20 kt. gusts up to 30 kt. seas 5 to 8 ft. wave detail: e 8 ft at
9 seconds and s 6 ft at 15 seconds. isolated tstms. a chance of
showers, then showers likely. 
.tonight...e winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. gusts up to 25 kt. seas 4 to 6 ft. wave detail: s 6 ft
at 8 seconds and ne 5 ft at 7 seconds. showers.
.mon...e winds 10 to 15 kt. seas 3 to 5 ft. wave detail: e 4 ft
at 7 seconds. showers likely. 
.mon night...n winds 10 to 15 kt. seas 3 to 4 ft. wave detail: s
4 ft at 7 seconds and ne 2 ft at 9 seconds. showers likely,
mainly in the evening. 
.tue and tue night...n winds 10 to 15 kt. seas 2 to 4 ft. wave
detail: nw 4 ft at 7 seconds and e 2 ft at 9 seconds. 
.wed through thu night...sw winds 10 to 15 kt with gusts up to
20 kt. seas 2 to 3 ft. wave detail: sw 3 ft at 4 seconds and se
2 ft at 11 seconds.  

winds and seas higher in and near tstms.

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 271403
cwfbox
expires:202609280300;;140933

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt sun sep 27 2026

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


anz236-280300-
narragansett bay-
1003 am edt sun sep 27 2026

...small craft advisory in effect until 2 pm edt this afternoon...

.this afternoon...e winds 15 to 20 kt with gusts up to 30 kt.
waves 4 to 6 ft. showers likely with isolated tstms. 
.tonight...ne winds 10 to 15 kt with gusts up to 25 kt. waves
2 to 3 ft. showers.
.mon...ne winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
waves 2 to 3 ft. showers.
.mon night...n winds 10 to 15 kt. waves 2 to 3 ft. showers
likely, mainly in the evening. 
.tue and tue night...nw winds 5 to 10 kt. waves 2 to 3 ft. 
.wed through thu night...sw winds 10 to 15 kt with gusts up to
20 kt. waves around 2 ft.  

winds and waves higher in and near tstms.

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 271403
cwfbox
expires:202609280300;;140921

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt sun sep 27 2026

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


anz250-280300-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
1003 am edt sun sep 27 2026

...gale warning in effect until 8 pm edt this evening...

.this afternoon...e winds 25 to 30 kt with gusts up to 40 kt.
seas 10 to 13 ft. wave detail: e 12 ft at 9 seconds and e 2 ft at
4 seconds. showers likely with isolated tstms. 
.tonight...e winds 20 to 25 kt with gusts up to 35 kt. seas 8 to
11 ft. wave detail: e 10 ft at 9 seconds and se 8 ft at
9 seconds. showers likely. 
.mon...ne 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: e 9 ft
at 9 seconds and se 2 ft at 7 seconds. showers likely. 
.mon night...ne winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. gusts up to 25 kt. seas 5 to 7 ft. wave detail:
ne 7 ft at 8 seconds and se 2 ft at 7 seconds. showers likely,
mainly in the evening. 
.tue...n winds 10 to 15 kt with gusts up to 20 kt. seas 4 to
6 ft. wave detail: ne 5 ft at 9 seconds and s 2 ft at 7 seconds.
a chance of showers in the morning. 
.tue night...n winds 5 to 10 kt. seas 3 to 4 ft. wave detail: e
4 ft at 9 seconds and se 1 foot at 7 seconds. 
.wed through thu night...sw winds 10 to 15 kt with gusts up to
20 kt. seas 2 to 4 ft.  

winds and seas higher in and near tstms.

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 271403
cwfbox
expires:202609280300;;140924

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt sun sep 27 2026

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


anz254-280300-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
1003 am edt sun sep 27 2026

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

.this afternoon...e winds 15 to 20 kt with gusts up to 30 kt.
seas 9 to 12 ft. wave detail: e 10 ft at 9 seconds and se 5 ft at
8 seconds. a chance of showers with isolated tstms. 
.tonight...e winds 15 to 20 kt with gusts up to 25 kt. seas 7 to
10 ft, subsiding to 5 to 8 ft after midnight. wave detail: e 9 ft
at 9 seconds and s 5 ft at 8 seconds, becoming e 7 ft at
9 seconds and s 4 ft at 8 seconds. a chance of showers. 
.mon...e winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. gusts up to 25 kt. seas 5 to 7 ft. wave detail: ne
7 ft at 9 seconds and s 3 ft at 7 seconds. a chance of showers. 
.mon night...se winds 5 to 10 kt, becoming s after midnight. seas
4 to 6 ft. wave detail: e 6 ft at 8 seconds and s 3 ft at
7 seconds. a chance of showers. 
.tue...n winds 10 to 15 kt with gusts up to 20 kt. seas 4 to
6 ft. wave detail: e 5 ft at 8 seconds and s 3 ft at 7 seconds. a
chance of showers in the morning. 
.tue night...n winds 5 to 10 kt. seas 3 to 5 ft. wave detail: e
4 ft at 9 seconds and sw 2 ft at 7 seconds. 
.wed through thu night...sw winds 10 to 15 kt with gusts up to
20 kt. seas 2 to 4 ft.  

winds and seas higher in and near tstms.

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 271403
cwfbox
expires:202609280300;;140925

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt sun sep 27 2026

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


anz255-280300-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
1003 am edt sun sep 27 2026

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

.this afternoon...e winds 15 to 20 kt with gusts up to 30 kt.
seas 7 to 10 ft. wave detail: e 10 ft at 9 seconds and s 7 ft at
9 seconds. a chance of showers with isolated tstms. 
.tonight...e winds 10 to 15 kt with gusts up to 25 kt. seas 5 to
7 ft. wave detail: s 6 ft at 8 seconds and e 5 ft at 9 seconds.
showers likely, mainly in the evening. 
.mon...se winds 5 to 10 kt. seas 4 to 6 ft. wave detail: s 4 ft
at 7 seconds and e 4 ft at 9 seconds. a chance of showers. 
.mon night...se winds 5 to 10 kt, becoming sw 10 to 15 kt after
midnight. seas 4 to 6 ft. wave detail: sw 4 ft at 7 seconds and e
4 ft at 9 seconds. a chance of showers. 
.tue...nw winds 10 to 15 kt. seas 4 to 6 ft. wave detail: sw 4 ft
at 7 seconds and e 3 ft at 8 seconds. 
.tue night...n winds 5 to 10 kt. seas 2 to 4 ft. wave detail: w
3 ft at 6 seconds and ne 3 ft at 9 seconds. 
.wed through thu night...sw winds 10 to 15 kt with gusts up to
20 kt. seas 2 to 4 ft.  

winds and seas higher in and near tstms.

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.

$$