fzus51 kbox 271704
cwfbox
expires:202605280600;;741083

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed may 27 2026

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


anz231-280600-
cape cod bay-
104 pm edt wed may 27 2026

.this afternoon...sw winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: sw 2 ft at 3 seconds and se 1 foot
at 9 seconds. a slight chance of showers with isolated tstms. 
.tonight...w winds 10 to 15 kt with gusts up to 20 kt, becoming n
5 to 10 kt after midnight. seas around 2 ft in the evening, then
1 foot or less. wave detail: w 1 foot at 3 seconds and se 1 foot
at 8 seconds, becoming nw 1 foot at 3 seconds and e 1 foot at
7 seconds. 
.thu...n winds 5 to 10 kt. seas around 2 ft. wave detail: n
1 foot at 3 seconds and ne 1 foot at 6 seconds. a chance of
showers in the afternoon. 
.thu night...n winds around 5 kt. seas 1 foot or less, then
around 2 ft after midnight. wave detail: n 1 foot at 4 seconds. 
.fri...n winds around 5 kt, becoming se in the afternoon. seas
around 2 ft. wave detail: n 1 foot at 4 seconds. 
.fri night...sw winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas around 2 ft. wave detail: sw 2 ft at 3 seconds and
ne 1 foot at 5 seconds. a chance of showers in the evening, then
showers after midnight. 
.sat...nw winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
4 ft. showers likely. 
.sat night...n winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 4 ft. a chance of showers. 
.sun and sun night...n winds 15 to 20 kt with gusts up to 25 kt,
becoming w 5 to 10 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 271704
cwfbox
expires:202605280600;;741087

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed may 27 2026

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


anz232-280600-
nantucket sound-
104 pm edt wed may 27 2026

.this afternoon...sw winds 15 to 20 kt with gusts up to 25 kt.
seas around 3 ft. wave detail: sw 3 ft at 4 seconds and se 1 foot
at 8 seconds. 
.tonight...w winds 10 to 15 kt with gusts up to 20 kt, becoming n
after midnight. seas 2 to 3 ft. wave detail: w 3 ft at 4 seconds
and se 1 foot at 7 seconds. patchy fog in the evening with vsby
1 nm or less. 
.thu...n winds 5 to 10 kt. seas around 2 ft. wave detail: nw
1 foot at 6 seconds and ne 1 foot at 6 seconds. a chance of
showers in the afternoon. 
.thu night...n winds 5 to 10 kt. seas around 2 ft. wave detail:
ne 1 foot at 4 seconds and sw 1 foot at 6 seconds. 
.fri...nw winds 5 to 10 kt, becoming s in the afternoon. seas
around 2 ft. wave detail: nw 1 foot at 4 seconds and e 1 foot at
7 seconds. 
.fri night...s winds 10 to 15 kt, becoming sw 15 to 20 kt after
midnight. seas 2 to 3 ft. wave detail: sw 3 ft at 4 seconds and e
1 foot at 8 seconds. a chance of showers in the evening, then
showers after midnight. 
.sat...nw winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
3 ft. showers likely. 
.sat night through sun night...w winds 15 to 20 kt with gusts up
to 25 kt. seas 2 to 4 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 271704
cwfbox
expires:202605280600;;741088

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed may 27 2026

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


anz233-280600-
vineyard sound-
104 pm edt wed may 27 2026

.this afternoon...sw winds 15 to 20 kt with gusts up to 25 kt.
seas around 3 ft. wave detail: sw 3 ft at 6 seconds and e 1 foot
at 7 seconds. 
.tonight...w winds 10 to 15 kt with gusts up to 20 kt, becoming n
5 to 10 kt after midnight. seas 2 to 3 ft. wave detail: sw 3 ft
at 6 seconds and e 1 foot at 8 seconds. patchy fog in the evening
with vsby 1 nm or less. 
.thu...n winds 5 to 10 kt. seas around 2 ft. wave detail: w 2 ft
at 6 seconds and ne 1 foot at 6 seconds. a chance of showers in
the afternoon. 
.thu night...n winds around 5 kt, increasing to 5 to 10 kt after
midnight. seas around 2 ft. wave detail: sw 2 ft at 7 seconds and
ne 1 foot at 3 seconds. a chance of showers in the evening. 
.fri...nw winds 5 to 10 kt, becoming sw 10 to 15 kt in the
afternoon. seas around 2 ft. wave detail: sw 2 ft at 7 seconds
and e 1 foot at 4 seconds. 
.fri night...sw winds 10 to 15 kt, increasing to 15 to 20 kt
after midnight. seas 2 to 3 ft. wave detail: sw 3 ft at 5 seconds
and e 1 foot at 9 seconds. a chance of showers in the evening,
then showers likely after midnight. 
.sat...nw winds 20 to 25 kt. seas 2 to 3 ft. a chance of showers.
.sat night through sun night...w winds 15 to 20 kt with gusts up
to 25 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 271704
cwfbox
expires:202605280600;;741089

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed may 27 2026

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


anz234-280600-
buzzards bay-
104 pm edt wed may 27 2026

.this afternoon...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 4 ft. wave detail: s 3 ft at 5 seconds. 
.tonight...w winds 10 to 15 kt with gusts up to 20 kt, becoming n
5 to 10 kt after midnight. seas 2 to 3 ft. wave detail: sw 3 ft
at 5 seconds and e 1 foot at 7 seconds. patchy fog in the evening
with vsby 1 nm or less. 
.thu...n winds 5 to 10 kt. seas around 2 ft. wave detail: n
1 foot at 2 seconds and w 1 foot at 5 seconds. a chance of
showers in the afternoon. 
.thu night...n winds around 5 kt. seas around 2 ft in the
evening, then 1 foot or less. wave detail: ne 1 foot at 2 seconds
and sw 1 foot at 6 seconds, becoming ne 1 foot at 3 seconds and
sw 1 foot at 6 seconds. a chance of showers in the evening. 
.fri...nw winds around 5 kt, becoming sw 10 to 15 kt in the
afternoon. seas 1 foot or less, then around 2 ft in the
afternoon. wave detail: ne 1 foot at 5 seconds and w 1 foot at
7 seconds, becoming sw 2 ft at 7 seconds and e 1 foot at
8 seconds. 
.fri night...sw winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas 2 to 3 ft. wave detail: sw 3 ft at 4 seconds and
se 1 foot at 8 seconds. a chance of showers in the evening, then
showers likely after midnight. 
.sat...nw winds 15 to 20 kt with gusts up to 25 kt. seas around
3 ft. showers likely. 
.sat night through sun night...w winds 15 to 20 kt with gusts up
to 25 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 271704
cwfbox
expires:202605280600;;741090

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed may 27 2026

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


anz235-280600-
rhode island sound-
104 pm edt wed may 27 2026

.this afternoon...sw winds 15 to 20 kt. seas around 3 ft. wave
detail: s 3 ft at 7 seconds. 
.tonight...w winds 10 to 15 kt with gusts up to 20 kt, becoming n
after midnight. seas 2 to 3 ft. wave detail: sw 3 ft at 7 seconds
and se 3 ft at 9 seconds. patchy fog in the evening with vsby
1 nm or less. 
.thu...n winds 5 to 10 kt. seas around 2 ft. wave detail: nw 2 ft
at 6 seconds and se 2 ft at 9 seconds. a chance of showers in the
afternoon. 
.thu night...n winds 5 to 10 kt. seas around 2 ft. wave detail: s
2 ft at 7 seconds and ne 1 foot at 2 seconds. a chance of showers
in the evening. 
.fri...nw winds 5 to 10 kt, becoming sw 10 to 15 kt with gusts up
to 20 kt in the afternoon. seas 2 to 3 ft. wave detail: sw 3 ft
at 7 seconds and e 1 foot at 8 seconds. 
.fri night...sw winds 15 to 20 kt. seas 2 to 3 ft. wave detail:
sw 3 ft at 5 seconds and se 1 foot at 9 seconds. showers likely
after midnight. 
.sat...nw winds 20 to 25 kt. seas 3 to 4 ft. showers likely. 
.sat night through sun night...w winds 15 to 20 kt with gusts up
to 25 kt. seas 2 to 4 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 271704
cwfbox
expires:202605280600;;741093

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed may 27 2026

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


anz236-280600-
narragansett bay-
104 pm edt wed may 27 2026

.this afternoon...sw winds 10 to 15 kt with gusts up to 20 kt.
waves around 2 ft. a slight chance of showers with isolated
tstms. 
.tonight...w winds 10 to 15 kt, becoming n 5 to 10 kt after
midnight. waves around 2 ft. 
.thu...n winds 5 to 10 kt. waves around 2 ft. a chance of showers
in the afternoon. 
.thu night...n winds 5 to 10 kt. waves around 2 ft. a chance of
showers in the evening. 
.fri...nw winds 5 to 10 kt, becoming sw 10 to 15 kt in the
afternoon. waves 1 foot or less, then around 2 ft in the
afternoon. 
.fri night...sw winds 10 to 15 kt. gusts up to 20 kt after
midnight. waves around 2 ft. showers likely after midnight. 
.sat...nw winds 15 to 20 kt with gusts up to 25 kt. waves 2 to
3 ft. showers likely. 
.sat night through sun night...w winds 15 to 20 kt. waves 2 to
3 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 271704
cwfbox
expires:202605280600;;741081

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed may 27 2026

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


anz250-280600-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
104 pm edt wed may 27 2026

.this afternoon...sw winds 5 to 10 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: sw 2 ft at 3 seconds and se 2 ft at
7 seconds. 
.tonight...nw winds 5 to 10 kt. seas around 2 ft. wave detail: se
2 ft at 7 seconds and w 1 foot at 3 seconds. 
.thu...n winds 5 to 10 kt. seas around 2 ft. wave detail: ne 2 ft
at 7 seconds and nw 1 foot at 3 seconds. a chance of showers in
the afternoon. 
.thu night...n winds around 5 kt. seas 2 to 3 ft. wave detail: e
2 ft at 6 seconds and w 1 foot at 4 seconds. 
.fri...n winds around 5 kt, becoming se in the afternoon. seas
2 to 3 ft. wave detail: ne 2 ft at 8 seconds and s 1 foot at
7 seconds. a chance of showers in the afternoon. 
.fri night...s winds 10 to 15 kt with gusts up to 20 kt. seas
3 to 4 ft. wave detail: s 3 ft at 4 seconds and e 2 ft at
8 seconds. a chance of showers in the evening, then showers after
midnight. 
.sat...ne winds 20 to 25 kt with gusts up to 30 kt. seas 4 to
6 ft. showers.
.sat night...n winds 15 to 20 kt with gusts up to 30 kt. seas
5 to 7 ft. a chance of showers. 
.sun...n winds 15 to 20 kt with gusts up to 25 kt. seas 4 to
6 ft. 
.sun night...w winds around 10 kt. seas 3 to 4 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 271704
cwfbox
expires:202605280600;;741084

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed may 27 2026

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


anz254-280600-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
104 pm edt wed may 27 2026

.this afternoon...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 4 ft. wave detail: s 4 ft at 7 seconds. 
.tonight...w winds 10 to 15 kt with gusts up to 20 kt, becoming n
after midnight. seas 2 to 4 ft. wave detail: w 4 ft at 6 seconds
and se 2 ft at 7 seconds. patchy fog. vsby 1 nm or less. 
.thu...n winds 5 to 10 kt. seas 2 to 3 ft. wave detail: nw 3 ft
at 5 seconds and e 2 ft at 7 seconds. 
.thu night...n winds 5 to 10 kt. seas 2 to 3 ft. wave detail: ne
2 ft at 6 seconds and sw 2 ft at 7 seconds. 
.fri...n winds 5 to 10 kt, becoming s in the afternoon. seas 2 to
4 ft. wave detail: sw 2 ft at 7 seconds and ne 2 ft at 8 seconds.
.fri night...s winds 10 to 15 kt, becoming sw 15 to 20 kt after
midnight. seas 3 to 5 ft. wave detail: s 3 ft at 4 seconds and ne
2 ft at 8 seconds. a chance of showers in the evening, then
showers after midnight. 
.sat...w winds 15 to 20 kt with gusts up to 25 kt. seas 4 to
6 ft. showers.
.sat night...n winds 15 to 20 kt with gusts up to 25 kt. seas
5 to 7 ft. a chance of showers. 
.sun...nw winds 15 to 20 kt with gusts up to 25 kt. seas 5 to
7 ft. 
.sun night...w winds around 10 kt. seas 3 to 5 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 271704
cwfbox
expires:202605280600;;741085

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt wed may 27 2026

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


anz255-280600-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
104 pm edt wed may 27 2026

.this afternoon...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 4 ft. wave detail: sw 4 ft at 7 seconds and e 1 foot at
8 seconds. patchy fog. vsby 1 nm or less. 
.tonight...w winds 10 to 15 kt with gusts up to 20 kt, becoming n
after midnight. seas 2 to 4 ft. wave detail: sw 4 ft at 7 seconds
and e 1 foot at 8 seconds. patchy fog. vsby 1 nm or less. 
.thu...n winds 5 to 10 kt. seas 2 to 3 ft. wave detail: w 3 ft at
6 seconds and e 1 foot at 7 seconds. a chance of showers in the
afternoon. 
.thu night...n winds 5 to 10 kt. seas 2 to 3 ft. wave detail: s
2 ft at 7 seconds and ne 1 foot at 6 seconds. a chance of showers
in the evening. 
.fri...nw winds 5 to 10 kt, becoming sw in the afternoon. seas
2 to 3 ft. wave detail: sw 2 ft at 7 seconds and ne 1 foot at
7 seconds. 
.fri night...sw winds 10 to 15 kt, increasing to 15 to 20 kt
after midnight. gusts up to 25 kt. seas 3 to 5 ft. wave detail:
sw 5 ft at 5 seconds and e 2 ft at 8 seconds. a chance of showers
in the evening, then showers after midnight. 
.sat...nw winds 20 to 25 kt. seas 4 to 6 ft. showers likely. 
.sat night...n winds 20 to 25 kt. seas 5 to 7 ft. 
.sun...nw winds 15 to 20 kt. seas 4 to 6 ft. 
.sun night...w winds 10 to 15 kt. seas 3 to 5 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.

$$