fzus51 kbox 272004
cwfbox
expires:202605280900;;750321

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

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


anz231-280900-
cape cod bay-
404 pm edt wed may 27 2026

.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 this 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
8 seconds. a slight chance of showers with isolated tstms this
evening. 
.thu...n winds 5 to 10 kt. seas 1 foot or less. 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. wave
detail: n 1 foot at 4 seconds. 
.fri...n winds around 5 kt, becoming se in the afternoon. seas
1 foot or less. wave detail: n 1 foot at 4 seconds. 
.fri night...s winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft. wave detail: s 2 ft at 3 seconds and ne 1 foot at
5 seconds. a chance of showers in the evening, then showers
likely after midnight. 
.sat...w winds around 15 kt, becoming n 20 to 25 kt in the
afternoon. gusts up to 30 kt. seas 2 to 4 ft. wave detail: nw
4 ft at 5 seconds and ne 2 ft at 8 seconds. showers likely,
mainly in the morning. 
.sat night...n winds 25 to 30 kt, diminishing to 20 to 25 kt
after midnight. seas 3 to 5 ft. a chance of showers in the
evening. 
.sun...n winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. 
.sun night...s winds 5 to 10 kt. seas 2 to 3 ft. 
.mon and mon night...n winds 5 to 10 kt, becoming s. seas around
2 ft. a chance of showers.  

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 272004
cwfbox
expires:202605280900;;750325

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

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


anz232-280900-
nantucket sound-
404 pm edt wed may 27 2026

.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 this evening. a slight
chance of showers with isolated tstms this evening with vsby 1 nm
or less. 
.thu...n winds 5 to 10 kt. seas around 2 ft. wave detail: nw
1 foot at 4 seconds and ne 1 foot at 6 seconds. a chance of
showers in the afternoon. 
.thu night...nw winds 5 to 10 kt. seas around 2 ft. wave detail:
ne 1 foot at 5 seconds and sw 1 foot at 6 seconds. 
.fri...nw winds 5 to 10 kt, becoming sw in the afternoon. seas
around 2 ft. wave detail: nw 1 foot at 4 seconds and e 1 foot at
7 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 4 seconds
and e 1 foot at 8 seconds. showers likely after midnight. 
.sat...w winds 15 to 20 kt, becoming nw 20 to 25 kt with gusts up
to 30 kt in the afternoon. seas 2 to 4 ft. wave detail: sw 3 ft
at 4 seconds and e 1 foot at 8 seconds. showers likely, mainly in
the morning. 
.sat night...n winds 20 to 25 kt with gusts up to 30 kt. seas
2 to 4 ft. 
.sun and sun night...nw winds 15 to 20 kt with gusts up to 25 kt,
becoming sw around 10 kt. seas 2 to 4 ft. 
.mon and mon night...sw winds around 10 kt, becoming s. seas 2 to
3 ft. a chance of showers.  

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 272004
cwfbox
expires:202605280900;;750326

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

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


anz233-280900-
vineyard sound-
404 pm edt wed may 27 2026

.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 ne 2 ft at 7 seconds. patchy fog this evening. a
slight chance of showers with isolated tstms this 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...nw winds 5 to 10 kt. seas around 2 ft. wave detail:
sw 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 in the
afternoon. seas around 2 ft. wave detail: w 2 ft at 7 seconds and
e 1 foot at 8 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 6 seconds
and e 1 foot at 8 seconds. showers likely after midnight. 
.sat...w winds 15 to 20 kt, becoming nw 20 to 25 kt in the
afternoon. seas 3 to 4 ft. wave detail: sw 4 ft at 7 seconds and
e 2 ft at 9 seconds. showers likely, mainly in the morning. 
.sat night...n winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. seas 2 to 3 ft. 
.sun and sun night...nw winds 10 to 15 kt with gusts up to 20 kt,
becoming sw. seas around 2 ft. 
.mon and mon night...sw winds around 10 kt, becoming s. seas
around 2 ft. a chance of showers.  

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 272004
cwfbox
expires:202605280900;;750327

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

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


anz234-280900-
buzzards bay-
404 pm edt wed may 27 2026

.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 ne 2 ft at 6 seconds. patchy fog this evening. a
slight chance of showers with isolated tstms this evening with
vsby 1 nm or less. 
.thu...n winds 5 to 10 kt. seas around 2 ft. wave detail: ne
1 foot at 2 seconds and w 1 foot at 5 seconds. a chance of
showers in the afternoon. 
.thu night...nw winds 5 to 10 kt. seas 1 foot or less. wave
detail: ne 1 foot at 2 seconds and sw 1 foot at 6 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 1 foot or less, then around 2 ft in the
afternoon. wave detail: nw 1 foot at 6 seconds and e 1 foot at
6 seconds, becoming sw 2 ft at 6 seconds and e 1 foot at
7 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 5 seconds and e
1 foot at 8 seconds. a chance of showers in the evening, then
showers likely after midnight. 
.sat...w winds 15 to 20 kt, becoming n 20 to 25 kt in the
afternoon. gusts up to 30 kt. seas around 3 ft. wave detail: sw
3 ft at 6 seconds and se 3 ft at 9 seconds. showers likely,
mainly in the morning. 
.sat night...n winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. seas 2 to 3 ft. 
.sun and sun night...nw winds 10 to 15 kt with gusts up to 20 kt,
becoming sw 5 to 10 kt. seas around 2 ft. 
.mon and mon night...s winds 5 to 10 kt. seas around 2 ft. a
chance of showers.  

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 272004
cwfbox
expires:202605280900;;750328

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

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


anz235-280900-
rhode island sound-
404 pm edt wed may 27 2026

.tonight...w winds 10 to 15 kt with gusts up to 20 kt, becoming n
after midnight. seas 2 to 4 ft. wave detail: s 4 ft at 7 seconds
and s 1 foot at 13 seconds. patchy fog this evening. a slight
chance of showers with isolated tstms this 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 ne 2 ft at 7 seconds. a chance of showers in the
afternoon. 
.thu night...nw winds 5 to 10 kt. seas around 2 ft. wave detail:
sw 2 ft at 7 seconds and se 2 ft at 8 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 2 ft at 9 seconds. 
.fri night...sw winds 15 to 20 kt. seas 2 to 4 ft. wave detail:
sw 4 ft at 6 seconds and se 1 foot at 9 seconds. showers likely
after midnight. 
.sat...w winds 15 to 20 kt, becoming nw 20 to 25 kt in the
afternoon. seas 3 to 4 ft. wave detail: sw 4 ft at 7 seconds and
e 1 foot at 9 seconds. a chance of showers in the morning. 
.sat night...n winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. seas 2 to 3 ft. 
.sun and sun night...w winds 10 to 15 kt with gusts up to 20 kt,
becoming sw. seas 2 to 3 ft. 
.mon and mon night...sw winds 10 to 15 kt, becoming se. seas 2 to
3 ft. a chance of showers.  

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 272004
cwfbox
expires:202605280900;;750331

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

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


anz236-280900-
narragansett bay-
404 pm edt wed may 27 2026

.tonight...w winds 10 to 15 kt, becoming n 5 to 10 kt after
midnight. waves around 2 ft. a slight chance of showers with
isolated tstms this evening. 
.thu...n winds 5 to 10 kt. waves around 2 ft. a chance of showers
in the afternoon. 
.thu night...nw winds 5 to 10 kt. waves around 2 ft. a chance of
showers in the evening. 
.fri...nw winds 5 to 10 kt, becoming w 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. a chance of showers. 
.sat...nw winds 15 to 20 kt, becoming n in the afternoon. gusts
up to 25 kt. waves 2 to 3 ft. a chance of showers in the morning.
.sat night...n winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. gusts up to 25 kt. waves 2 to 3 ft. 
.sun and sun night...nw winds around 10 kt, becoming sw. waves
around 2 ft. 
.mon and mon night...sw winds 5 to 10 kt, becoming e. waves
around 2 ft. a chance of showers.  

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 272004
cwfbox
expires:202605280900;;750319

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

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


anz250-280900-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
404 pm edt wed may 27 2026

.tonight...nw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: w
2 ft at 3 seconds and se 2 ft at 7 seconds. 
.thu...n winds 5 to 10 kt. seas around 2 ft. wave detail: nw 2 ft
at 3 seconds and ne 2 ft at 7 seconds. a chance of showers in the
afternoon. 
.thu night...n winds 5 to 10 kt. seas around 2 ft. wave detail:
ne 2 ft at 6 seconds and w 1 foot at 4 seconds. 
.fri...n winds around 5 kt, becoming se in the afternoon. seas
around 2 ft. wave detail: ne 2 ft at 8 seconds and w 1 foot at
5 seconds. 
.fri night...s winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. seas 2 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...nw winds 20 to 25 kt, becoming n 25 to 30 kt with gusts up
to 35 kt in the afternoon. seas 5 to 7 ft. wave detail: ne 7 ft
at 8 seconds and sw 3 ft at 4 seconds. showers likely. 
.sat night...n winds 25 to 30 kt, diminishing to 20 to 25 kt
after midnight. seas 6 to 9 ft. a chance of showers in the
evening. 
.sun...n winds 15 to 20 kt with gusts up to 25 kt. seas 5 to
7 ft. 
.sun night...s winds 5 to 10 kt. seas 4 to 5 ft. 
.mon and mon night...se winds 5 to 10 kt. seas 3 to 4 ft. a
chance of showers.  

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 272004
cwfbox
expires:202605280900;;750322

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

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


anz254-280900-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
404 pm edt wed may 27 2026

.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: n 3 ft at
6 seconds. 
.thu night...nw 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
3 ft. wave detail: ne 3 ft at 8 seconds and sw 2 ft at 7 seconds.
.fri night...s winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. seas 2 to 4 ft. wave detail: s 4 ft at 5 seconds and ne
3 ft at 8 seconds. a chance of showers in the evening, then
showers likely after midnight. 
.sat...sw winds 15 to 20 kt, becoming n 20 to 25 kt in the
afternoon. gusts up to 30 kt. seas 4 to 6 ft. wave detail: nw
5 ft at 6 seconds and ne 5 ft at 9 seconds. showers likely,
mainly in the morning. 
.sat night...n winds 25 to 30 kt, diminishing to 20 to 25 kt
after midnight. seas 6 to 9 ft. a chance of showers in the
evening. 
.sun...n winds 15 to 20 kt with gusts up to 25 kt. seas 5 to
7 ft. 
.sun night...sw winds 5 to 10 kt. seas 4 to 6 ft. 
.mon and mon night...s winds 5 to 10 kt. seas 3 to 4 ft. a chance
of showers.  

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 272004
cwfbox
expires:202605280900;;750323

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

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


anz255-280900-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
404 pm edt wed may 27 2026

.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 6 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: sw 3 ft
at 7 seconds and ne 1 foot at 5 seconds. a chance of showers in
the afternoon. 
.thu night...nw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: s
2 ft at 7 seconds and ne 1 foot at 5 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 2 to 3 ft. wave detail: sw 3 ft at 8 seconds and
e 2 ft at 8 seconds. 
.fri night...sw winds 10 to 15 kt, increasing to 15 to 20 kt
after midnight. gusts up to 25 kt. seas 2 to 3 ft, building to
3 to 5 ft after midnight. wave detail: sw 3 ft at 5 seconds and e
2 ft at 8 seconds, becoming sw 5 ft at 6 seconds and e 2 ft at
8 seconds. showers likely after midnight. 
.sat...sw winds around 20 kt, becoming nw in the afternoon. gusts
up to 30 kt. seas 4 to 6 ft. wave detail: sw 6 ft at 7 seconds
and e 2 ft at 9 seconds. showers likely, mainly in the morning. 
.sat night...n winds 20 to 25 kt with gusts up to 30 kt. seas
4 to 6 ft. 
.sun...nw winds 15 to 20 kt with gusts up to 25 kt. seas 4 to
6 ft. 
.sun night...sw winds around 10 kt. seas 3 to 5 ft. 
.mon and mon night...sw winds 10 to 15 kt, becoming s 5 to 10 kt.
seas 3 to 5 ft. a chance of showers.  

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.

$$