fzus51 kbox 272305
cwfbox
expires:202604281200;;636984

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
705 pm edt mon apr 27 2026

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


anz231-281200-
cape cod bay-
705 pm edt mon apr 27 2026

.tonight...ne winds 5 to 10 kt. gusts up to 20 kt after midnight.
seas around 2 ft. wave detail: e 2 ft at 7 seconds and n 1 foot
at 3 seconds. 
.tue...ne winds around 10 kt. gusts up to 20 kt in the afternoon.
seas 2 to 3 ft. wave detail: se 2 ft at 9 seconds and e 2 ft at
11 seconds. 
.tue night...ne winds 5 to 10 kt. gusts up to 20 kt in the
evening. seas 2 to 3 ft. wave detail: se 2 ft at 10 seconds and e
2 ft at 11 seconds. 
.wed...ne winds 5 to 10 kt. seas 2 to 3 ft. wave detail: ne 2 ft
at 11 seconds and n 1 foot at 2 seconds. a chance of showers in
the afternoon. 
.wed night...e winds 5 to 10 kt. seas 2 to 3 ft. wave detail: ne
2 ft at 10 seconds and ne 1 foot at 2 seconds. a chance of
showers in the evening, then showers likely after midnight. 
.thu and thu night...w winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: w 3 ft at 4 seconds and se 2 ft at
3 seconds. showers.
.fri and fri night...w winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. 
.sat and sat night...sw winds 5 to 10 kt. seas 2 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 272305
cwfbox
expires:202604281200;;636988

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
705 pm edt mon apr 27 2026

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


anz232-281200-
nantucket sound-
705 pm edt mon apr 27 2026

...small craft advisory in effect until 8 pm edt this evening...

.tonight...ne winds around 10 kt with gusts up to 20 kt. seas
2 to 3 ft. wave detail: ne 2 ft at 4 seconds and e 2 ft at
11 seconds. 
.tue...ne winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
4 ft. wave detail: e 3 ft at 9 seconds and ne 2 ft at 4 seconds. 
.tue night...ne winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 4 ft. wave detail: e 3 ft at 9 seconds and n 2 ft at
4 seconds. 
.wed...ne winds around 10 kt. seas 2 to 4 ft. wave detail: ne
2 ft at 5 seconds and e 2 ft at 10 seconds. a chance of showers
in the afternoon. 
.wed night...e winds 10 to 15 kt. seas 2 to 4 ft. wave detail: ne
2 ft at 6 seconds and e 2 ft at 10 seconds. a chance of showers
in the evening, then showers likely after midnight. 
.thu and thu night...w winds 15 to 20 kt. seas 2 to 4 ft. wave
detail: se 3 ft at 5 seconds and w 2 ft at 3 seconds. showers.
.fri and fri night...w winds 15 to 20 kt, diminishing to 10 to
15 kt. gusts up to 25 kt. seas 2 to 4 ft. 
.sat and sat night...sw winds 10 to 15 kt with gusts up to 20 kt,
becoming se. seas 2 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 272305
cwfbox
expires:202604281200;;636989

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
705 pm edt mon apr 27 2026

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


anz233-281200-
vineyard sound-
705 pm edt mon apr 27 2026

.tonight...ne winds 5 to 10 kt. seas 2 to 3 ft. wave detail: n
1 foot at 3 seconds and s 1 foot at 8 seconds. 
.tue...ne winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: ne 2 ft at 3 seconds and s 1 foot at
5 seconds. 
.tue night...ne winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas 2 to 3 ft. wave detail: n 2 ft at 4 seconds and s
1 foot at 5 seconds. 
.wed...ne winds around 10 kt. seas around 2 ft. wave detail: n
2 ft at 3 seconds and s 1 foot at 5 seconds. 
.wed night...e winds 10 to 15 kt. seas 2 to 3 ft. wave detail: s
3 ft at 6 seconds and e 2 ft at 3 seconds. showers likely after
midnight. 
.thu...se winds 10 to 15 kt. seas 2 to 3 ft. wave detail: sw 2 ft
at 3 seconds and se 2 ft at 4 seconds. showers.
.thu night...w winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. seas 2 to 3 ft. showers likely, mainly in the evening. 
.fri and fri night...w winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 3 ft. 
.sat and sat night...w winds 10 to 15 kt with gusts up to 20 kt,
becoming nw. seas 2 to 3 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 272305
cwfbox
expires:202604281200;;636990

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
705 pm edt mon apr 27 2026

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


anz234-281200-
buzzards bay-
705 pm edt mon apr 27 2026

.tonight...ne winds 5 to 10 kt. seas around 2 ft. wave detail: n
1 foot at 3 seconds and s 1 foot at 8 seconds. 
.tue...ne winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: ne 1 foot at 2 seconds and s 1 foot at
5 seconds. 
.tue night...ne winds 10 to 15 kt with gusts up to 20 kt,
becoming n 5 to 10 kt after midnight. seas around 2 ft. wave
detail: n 1 foot at 3 seconds and s 1 foot at 5 seconds. 
.wed...ne winds around 10 kt. seas around 2 ft. wave detail: n
2 ft at 3 seconds and s 1 foot at 5 seconds. 
.wed night...e winds 10 to 15 kt. seas around 2 ft. wave detail:
n 1 foot at 2 seconds and e 1 foot at 2 seconds. showers likely
after midnight. 
.thu and thu night...w winds 15 to 20 kt. seas around 2 ft. wave
detail: sw 2 ft at 3 seconds and se 2 ft at 3 seconds. showers.
.fri and fri night...w winds 15 to 20 kt, diminishing to 10 to
15 kt. gusts up to 25 kt. seas 2 to 3 ft. 
.sat and sat night...sw winds 10 to 15 kt with gusts up to 20 kt,
becoming nw. seas 2 to 3 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 272305
cwfbox
expires:202604281200;;636991

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
705 pm edt mon apr 27 2026

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


anz235-281200-
rhode island sound-
705 pm edt mon apr 27 2026

.tonight...ne winds 5 to 10 kt. seas 2 to 4 ft. wave detail: se
3 ft at 7 seconds and se 3 ft at 12 seconds. 
.tue...ne winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
4 ft. wave detail: e 3 ft at 10 seconds and se 3 ft at
10 seconds. 
.tue night...ne winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas 2 to 4 ft. wave detail: se 3 ft at 9 seconds and e
3 ft at 10 seconds. 
.wed...ne winds around 10 kt. seas 2 to 3 ft. wave detail: se
3 ft at 10 seconds and n 2 ft at 3 seconds. 
.wed night...e winds 10 to 15 kt. seas 2 to 3 ft. wave detail: se
3 ft at 7 seconds and se 3 ft at 10 seconds. showers likely after
midnight. 
.thu...se winds 10 to 15 kt, becoming s in the afternoon. seas
3 to 4 ft. wave detail: s 4 ft at 7 seconds and se 3 ft at
4 seconds. showers.
.thu night...w winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. a chance of showers in the evening. 
.fri and fri night...w winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. 
.sat and sat night...sw winds 10 to 15 kt with gusts up to 20 kt,
becoming nw. seas 2 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 272305
cwfbox
expires:202604281200;;636994

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
705 pm edt mon apr 27 2026

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


anz236-281200-
narragansett bay-
705 pm edt mon apr 27 2026

.tonight...ne winds 5 to 10 kt. waves around 2 ft. 
.tue...ne winds 5 to 10 kt. waves around 2 ft. 
.tue night...ne winds 5 to 10 kt. waves around 2 ft. 
.wed...ne winds 5 to 10 kt, becoming e in the afternoon. waves
around 2 ft. 
.wed night...e winds 5 to 10 kt. waves around 2 ft. a chance of
showers in the evening, then showers after midnight. 
.thu...se winds around 10 kt, becoming s in the afternoon. waves
2 to 3 ft. showers.
.thu night...nw winds 10 to 15 kt with gusts up to 20 kt. waves
2 to 3 ft. a chance of showers in the evening. 
.fri and fri night...w winds 10 to 15 kt with gusts up to 25 kt.
waves 2 to 3 ft. 
.sat and sat night...sw winds 10 to 15 kt, becoming nw 5 to
10 kt. waves 2 to 3 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 272305
cwfbox
expires:202604281200;;636982

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
705 pm edt mon apr 27 2026

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


anz250-281200-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
705 pm edt mon apr 27 2026

...small craft advisory in effect from 2 am edt tuesday through
thursday morning...

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

$$

fzus51 kbox 272305
cwfbox
expires:202604281200;;636985

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
705 pm edt mon apr 27 2026

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


anz254-281200-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
705 pm edt mon apr 27 2026

...small craft advisory in effect through thursday morning...

.tonight...ne winds 10 to 15 kt with gusts up to 25 kt. seas 4 to
6 ft. wave detail: e 5 ft at 9 seconds and se 3 ft at 7 seconds.
patchy fog after midnight with vsby 1 to 3 nm. 
.tue...ne winds 10 to 15 kt with gusts up to 25 kt. seas 4 to
6 ft. wave detail: e 6 ft at 9 seconds and n 3 ft at 4 seconds.
patchy fog in the morning with vsby 1 nm or less. 
.tue night...ne winds 10 to 15 kt with gusts up to 25 kt. seas
5 to 7 ft. wave detail: e 7 ft at 10 seconds and ne 4 ft at
4 seconds. a chance of showers after midnight. 
.wed...ne winds around 10 kt. seas 5 to 7 ft. wave detail: e 7 ft
at 10 seconds and ne 4 ft at 5 seconds. a chance of showers.
patchy fog in the morning with vsby 1 to 3 nm. 
.wed night...e winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas 4 to 6 ft. wave detail: e 6 ft at 10 seconds and
se 3 ft at 5 seconds. a chance of showers. 
.thu...se winds 10 to 15 kt with gusts up to 20 kt. seas 5 to
7 ft. wave detail: e 7 ft at 10 seconds and se 3 ft at 4 seconds.
showers.
.thu night...s winds 10 to 15 kt, becoming w after midnight.
gusts up to 20 kt. seas 4 to 6 ft. showers, mainly in the
evening. 
.fri and fri night...w winds 15 to 20 kt with gusts up to 25 kt.
seas 4 to 6 ft. 
.sat and sat night...sw winds 5 to 10 kt, becoming se. seas 4 to
6 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 272305
cwfbox
expires:202604281200;;636986

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
705 pm edt mon apr 27 2026

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


anz255-281200-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
705 pm edt mon apr 27 2026

...small craft advisory in effect through thursday morning...

.tonight...ne winds 10 to 15 kt with gusts up to 25 kt. seas 4 to
6 ft. wave detail: e 5 ft at 9 seconds and se 3 ft at 7 seconds. 
.tue...ne winds around 15 kt with gusts up to 25 kt. seas 4 to
6 ft. wave detail: e 6 ft at 9 seconds and n 2 ft at 3 seconds. 
.tue night...ne winds 10 to 15 kt with gusts up to 25 kt. seas
4 to 6 ft. wave detail: e 6 ft at 10 seconds and n 3 ft at
4 seconds. 
.wed...ne winds around 10 kt. gusts up to 20 kt in the morning.
seas 4 to 6 ft. wave detail: e 6 ft at 10 seconds and n 3 ft at
4 seconds. 
.wed night...e winds 10 to 15 kt. seas 3 to 5 ft. wave detail: e
5 ft at 10 seconds and se 3 ft at 5 seconds. a chance of showers
after midnight. 
.thu...se winds 10 to 15 kt with gusts up to 20 kt. seas 4 to
6 ft. wave detail: se 6 ft at 10 seconds and se 3 ft at
6 seconds. showers.
.thu night...w winds 15 to 20 kt with gusts up to 25 kt. seas
4 to 6 ft. a chance of showers. 
.fri and fri night...w winds 20 to 25 kt, diminishing to 15 to
20 kt. seas 4 to 6 ft. 
.sat and sat night...w winds 10 to 15 kt with gusts up to 20 kt,
becoming se. 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.

$$