fzus51 kbox 192005
cwfbox
expires:202604200900;;653661

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm edt sun apr 19 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz231-200900-
cape cod bay-
405 pm edt sun apr 19 2026

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

.tonight...nw winds 15 to 20 kt with gusts up to 30 kt, becoming
w 10 to 15 kt with gusts up to 20 kt after midnight. seas 2 to
3 ft. wave detail: nw 3 ft at 4 seconds and s 2 ft at 6 seconds.
patchy fog this evening. showers this evening with vsby 1 to
3 nm. 
.mon...w winds 5 to 10 kt. seas around 2 ft. wave detail: ne 2 ft
at 7 seconds and nw 1 foot at 4 seconds. 
.mon night...n winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt after midnight. seas around 2 ft. wave detail:
n 2 ft at 5 seconds and se 1 foot at 7 seconds. 
.tue...n winds 10 to 15 kt with gusts up to 20 kt, becoming ne
5 to 10 kt in the afternoon. seas around 2 ft. wave detail: n
2 ft at 4 seconds and s 1 foot at 7 seconds. 
.tue night through wed night...sw winds 10 to 15 kt. seas around
2 ft. wave detail: sw 2 ft at 4 seconds and ne 2 ft at 5 seconds.
.thu through fri night...ne winds 5 to 10 kt. seas around 2 ft.
wave detail: nw 1 foot at 2 seconds and e 1 foot at 9 seconds.  

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 192005
cwfbox
expires:202604200900;;653665

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm edt sun apr 19 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz232-200900-
nantucket sound-
405 pm edt sun apr 19 2026

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

.tonight...nw winds 15 to 20 kt with gusts up to 30 kt,
diminishing to 10 to 15 kt with gusts up to 20 kt after midnight.
seas 2 to 3 ft. wave detail: nw 3 ft at 4 seconds and e 2 ft at
7 seconds. patchy fog this evening. showers this evening with
vsby 1 to 3 nm. 
.mon...w winds 5 to 10 kt, becoming sw in the afternoon. seas
around 2 ft. wave detail: w 1 foot at 3 seconds and s 1 foot at
6 seconds. 
.mon night...nw winds 5 to 10 kt, becoming n 10 to 15 kt after
midnight. seas around 2 ft. wave detail: nw 2 ft at 3 seconds and
s 1 foot at 6 seconds. 
.tue...n winds 10 to 15 kt, becoming ne 5 to 10 kt in the
afternoon. seas around 2 ft. wave detail: n 2 ft at 5 seconds and
s 1 foot at 6 seconds. 
.tue night and wed...s winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. wave detail: s 2 ft at 3 seconds and nw 1 foot
at 4 seconds. 
.wed night...se winds 5 to 10 kt, becoming e after midnight. seas
around 2 ft. wave detail: sw 2 ft at 5 seconds and e 2 ft at
9 seconds. 
.thu through fri night...ne winds 5 to 10 kt. seas around 2 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 192005
cwfbox
expires:202604200900;;653666

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm edt sun apr 19 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz233-200900-
vineyard sound-
405 pm edt sun apr 19 2026

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

.tonight...nw winds 15 to 20 kt with gusts up to 30 kt,
diminishing to 10 to 15 kt with gusts up to 20 kt after midnight.
seas 2 to 3 ft. wave detail: nw 2 ft at 5 seconds and se 2 ft at
7 seconds. showers likely this evening. 
.mon...w winds 5 to 10 kt. seas around 2 ft. wave detail: sw 2 ft
at 6 seconds and e 1 foot at 8 seconds. 
.mon night...nw winds 5 to 10 kt, becoming n 10 to 15 kt with
gusts up to 20 kt after midnight. seas around 2 ft. wave detail:
ne 2 ft at 9 seconds and w 1 foot at 3 seconds. 
.tue...n winds 10 to 15 kt with gusts up to 20 kt, becoming e
5 to 10 kt in the afternoon. seas around 2 ft in the morning,
then 1 foot or less. wave detail: n 2 ft at 4 seconds and s
1 foot at 6 seconds, becoming n 1 foot at 3 seconds and s 1 foot
at 6 seconds. 
.tue night and wed...s winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: sw 2 ft at 5 seconds and e 1 foot at
4 seconds. 
.wed night...se winds 5 to 10 kt, becoming ne after midnight.
seas 2 to 3 ft. wave detail: sw 2 ft at 5 seconds and se 2 ft at
12 seconds.
.thu through fri night...ne winds 5 to 10 kt. seas around 2 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 192005
cwfbox
expires:202604200900;;653667

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm edt sun apr 19 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz234-200900-
buzzards bay-
405 pm edt sun apr 19 2026

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

.tonight...nw winds 15 to 20 kt, becoming w 10 to 15 kt after
midnight. gusts up to 25 kt. seas 2 to 3 ft. wave detail: nw 2 ft
at 4 seconds and sw 2 ft at 6 seconds. showers likely this
evening. 
.mon...w winds 5 to 10 kt. seas around 2 ft in the morning, then
1 foot or less. wave detail: w 1 foot at 5 seconds and e 1 foot
at 8 seconds, becoming sw 1 foot at 5 seconds and e 1 foot at
8 seconds. 
.mon night...nw winds 5 to 10 kt, becoming n 10 to 15 kt with
gusts up to 20 kt after midnight. seas 1 foot or less, then
around 2 ft after midnight. wave detail: w 1 foot at 3 seconds
and s 1 foot at 6 seconds, becoming n 2 ft at 5 seconds and s
1 foot at 6 seconds. 
.tue...n winds 10 to 15 kt with gusts up to 20 kt, becoming e
5 to 10 kt in the afternoon. seas around 2 ft in the morning,
then 1 foot or less. wave detail: n 2 ft at 4 seconds and s
1 foot at 5 seconds, becoming n 1 foot at 3 seconds and s 1 foot
at 6 seconds. 
.tue night and wed...s 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 3 seconds. 
.wed night...se winds 5 to 10 kt, becoming ne after midnight.
seas around 2 ft. wave detail: sw 2 ft at 5 seconds and se 2 ft
at 13 seconds.
.thu through fri night...ne winds 5 to 10 kt. seas around 2 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 192005
cwfbox
expires:202604200900;;653668

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm edt sun apr 19 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz235-200900-
rhode island sound-
405 pm edt sun apr 19 2026

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

.tonight...nw winds 15 to 20 kt with gusts up to 30 kt,
diminishing to 10 to 15 kt with gusts up to 20 kt after midnight.
seas 2 to 4 ft. wave detail: nw 3 ft at 4 seconds and se 2 ft at
7 seconds. patchy fog this evening. showers likely this evening. 
.mon...w winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se 2 ft
at 7 seconds and w 1 foot at 3 seconds. 
.mon night...nw winds 10 to 15 kt, becoming n 15 to 20 kt after
midnight. seas 2 to 3 ft. wave detail: nw 2 ft at 3 seconds and e
2 ft at 7 seconds. 
.tue...n winds 10 to 15 kt with gusts up to 20 kt, becoming se
5 to 10 kt in the afternoon. seas 2 to 3 ft. wave detail: n 2 ft
at 3 seconds and s 1 foot at 7 seconds. 
.tue night and wed...s winds 10 to 15 kt. seas 2 to 3 ft. wave
detail: sw 3 ft at 4 seconds and e 1 foot at 6 seconds. 
.wed night...se winds around 10 kt, becoming ne after midnight.
seas 2 to 3 ft. wave detail: s 3 ft at 6 seconds and w 2 ft at
3 seconds. 
.thu through fri night...e winds 5 to 10 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 192005
cwfbox
expires:202604200900;;653671

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm edt sun apr 19 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz236-200900-
narragansett bay-
405 pm edt sun apr 19 2026

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

.tonight...nw winds 10 to 15 kt with gusts up to 25 kt, becoming
w 5 to 10 kt after midnight. waves 2 to 3 ft. showers likely this
evening. 
.mon...w winds 5 to 10 kt. waves around 2 ft. a chance of showers
in the afternoon. 
.mon night...nw winds 5 to 10 kt, becoming n 10 to 15 kt after
midnight. waves around 2 ft. 
.tue...n winds 10 to 15 kt, becoming s 5 to 10 kt in the
afternoon. waves around 2 ft in the morning, then 1 foot or less.
.tue night and wed...s winds 10 to 15 kt. waves around 2 ft. 
.wed night...se winds 5 to 10 kt, becoming ne after midnight.
waves around 2 ft. 
.thu through fri...n winds 5 to 10 kt. waves around 2 ft. 
.fri night...e winds 5 to 10 kt. waves around 2 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 192005
cwfbox
expires:202604200900;;653659

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm edt sun apr 19 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz250-200900-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
405 pm edt sun apr 19 2026

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

.tonight...nw winds 15 to 20 kt, becoming w 10 to 15 kt after
midnight. gusts up to 30 kt. seas 3 to 5 ft. wave detail: se 4 ft
at 7 seconds and nw 3 ft at 4 seconds. patchy fog this evening.
showers this evening with vsby 1 to 3 nm. 
.mon...w winds 5 to 10 kt, becoming sw in the afternoon. seas
2 to 4 ft. wave detail: se 3 ft at 7 seconds and w 2 ft at
4 seconds. 
.mon night...n winds 5 to 10 kt, increasing to 15 to 20 kt after
midnight. seas 2 to 4 ft. wave detail: ne 4 ft at 8 seconds and
nw 3 ft at 4 seconds. 
.tue...n winds 10 to 15 kt with gusts up to 20 kt, becoming ne
5 to 10 kt in the afternoon. seas 2 to 4 ft. wave detail: n 4 ft
at 5 seconds and se 1 foot at 7 seconds. 
.tue night through wed night...sw winds 10 to 15 kt. seas 2 to
3 ft. wave detail: e 3 ft at 9 seconds and se 3 ft at 16 seconds.
.thu through fri night...ne winds 5 to 10 kt. seas 2 to 3 ft.
wave detail: s 3 ft at 7 seconds and e 3 ft at 9 seconds.  

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 192005
cwfbox
expires:202604200900;;653662

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm edt sun apr 19 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz254-200900-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
405 pm edt sun apr 19 2026

...small craft advisory in effect until 11 pm edt this evening...

.tonight...nw winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. gusts up to 30 kt. seas 3 to 5 ft. wave detail: se 4 ft
at 7 seconds and nw 3 ft at 4 seconds. patchy fog this evening.
showers this evening with vsby 1 to 3 nm. 
.mon...w winds 5 to 10 kt, becoming sw in the afternoon. seas
2 to 4 ft. wave detail: nw 2 ft at 5 seconds and se 2 ft at
7 seconds. 
.mon night...nw winds 5 to 10 kt, becoming n 10 to 15 kt with
gusts up to 20 kt after midnight. seas 2 to 3 ft. wave detail: ne
3 ft at 7 seconds and s 2 ft at 7 seconds. 
.tue...n winds 10 to 15 kt with gusts up to 20 kt, becoming ne
5 to 10 kt in the afternoon. seas 2 to 4 ft. wave detail: n 3 ft
at 5 seconds and s 1 foot at 7 seconds. 
.tue night and wed...s winds 10 to 15 kt. seas 2 to 3 ft. wave
detail: n 3 ft at 6 seconds and sw 2 ft at 3 seconds. 
.wed night...s winds around 10 kt, becoming se after midnight.
seas 2 to 3 ft. wave detail: e 3 ft at 10 seconds and sw 2 ft at
4 seconds. 
.thu through fri night...ne winds 5 to 10 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 192005
cwfbox
expires:202604200900;;653663

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm edt sun apr 19 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz255-200900-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
405 pm edt sun apr 19 2026

...small craft advisory in effect until 11 pm edt this evening...

.tonight...nw winds 15 to 20 kt with gusts up to 30 kt. seas 3 to
5 ft. wave detail: nw 4 ft at 5 seconds and s 3 ft at 6 seconds.
patchy fog this evening. showers this evening with vsby 1 to
3 nm. 
.mon...w winds 5 to 10 kt, becoming sw in the afternoon. seas
2 to 4 ft. wave detail: sw 3 ft at 7 seconds and e 2 ft at
7 seconds. 
.mon night...nw winds 5 to 10 kt, becoming n 15 to 20 kt after
midnight. seas 2 to 3 ft. wave detail: nw 2 ft at 4 seconds and
sw 2 ft at 7 seconds. 
.tue...n winds 15 to 20 kt, becoming ne 5 to 10 kt in the
afternoon. seas 2 to 4 ft. wave detail: n 3 ft at 5 seconds and s
1 foot at 6 seconds. 
.tue night...s winds 5 to 10 kt, becoming sw 10 to 15 kt after
midnight. seas 2 to 3 ft. wave detail: sw 2 ft at 3 seconds and e
2 ft at 6 seconds. 
.wed...s winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas 2 to 4 ft. wave detail: sw 3 ft at 5 seconds and e 3 ft at
9 seconds. a chance of showers in the morning. 
.wed night...se winds around 10 kt, becoming ne after midnight.
seas 3 to 4 ft. 
.thu through fri night...ne winds 10 to 15 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.

$$