fzus51 kbox 270804
cwfbox
expires:202605272100;;722389

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

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


anz231-272100-
cape cod bay-
403 am edt wed may 27 2026

.today...sw winds 10 to 15 kt. gusts up to 20 kt this afternoon.
seas 2 to 3 ft. wave detail: sw 2 ft at 3 seconds and e 1 foot at
7 seconds. a slight chance of showers this afternoon. 
.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. a
chance of showers in the evening. 
.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.  

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 270804
cwfbox
expires:202605272100;;722393

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

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


anz232-272100-
nantucket sound-
403 am edt wed may 27 2026

.today...sw winds 10 to 15 kt, increasing to 15 to 20 kt this
afternoon. gusts up to 25 kt. seas 2 to 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 to 3 nm. 
.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 270804
cwfbox
expires:202605272100;;722394

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

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


anz233-272100-
vineyard sound-
403 am edt wed may 27 2026

.today...sw winds 10 to 15 kt, increasing to 15 to 20 kt this
afternoon. seas 2 to 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
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 to 3 nm. 
.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 270804
cwfbox
expires:202605272100;;722395

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

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


anz234-272100-
buzzards bay-
403 am edt wed may 27 2026

.today...sw winds 10 to 15 kt, increasing to 15 to 20 kt this
afternoon. gusts up to 25 kt. seas around 2 ft, building to 3 to
4 ft this afternoon. wave detail: sw 2 ft at 4 seconds and s
1 foot at 7 seconds, becoming s 3 ft at 5 seconds. a slight
chance of showers this afternoon. 
.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. 
.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 270804
cwfbox
expires:202605272100;;722396

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

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


anz235-272100-
rhode island sound-
403 am edt wed may 27 2026

.today...sw winds 10 to 15 kt, increasing to 15 to 20 kt this
afternoon. 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 to 3 nm. 
.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...ne winds around 5 kt, becoming nw after midnight.
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 270804
cwfbox
expires:202605272100;;722399

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

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


anz236-272100-
narragansett bay-
403 am edt wed may 27 2026

.today...sw winds 10 to 15 kt. gusts up to 20 kt this afternoon.
waves around 2 ft. a slight chance of showers this afternoon. 
.tonight...w winds 5 to 10 kt, becoming n 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.  

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 270804
cwfbox
expires:202605272100;;722387

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

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


anz250-272100-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
403 am edt wed may 27 2026

.today...sw winds 10 to 15 kt, diminishing to 5 to 10 kt this
afternoon. gusts up to 20 kt. seas 2 to 3 ft. wave detail: sw
2 ft at 4 seconds and se 2 ft at 8 seconds. a slight chance of
showers this afternoon. 
.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. a chance of showers
in the evening. 
.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 270804
cwfbox
expires:202605272100;;722390

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

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


anz254-272100-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
403 am edt wed may 27 2026

.today...sw winds 10 to 15 kt, increasing to 15 to 20 kt this
afternoon. gusts up to 25 kt. seas 3 to 4 ft. wave detail: s 4 ft
at 6 seconds. patchy fog this afternoon with vsby 1 to 3 nm. 
.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 in the evening with vsby
1 to 3 nm. 
.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 270804
cwfbox
expires:202605272100;;722391

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

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


anz255-272100-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
403 am edt wed may 27 2026

.today...sw winds 15 to 20 kt. seas 3 to 4 ft. wave detail: s
4 ft at 7 seconds. patchy fog. vsby 1 to 3 nm. 
.tonight...sw 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, increasing to 1 to 3 nm after midnight. 
.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. 
.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. 
.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.

$$