fzus51 kbox 220205
cwfbox
expires:202606221500;;156890

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 pm edt sun jun 21 2026

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


anz235-221500-
rhode island sound-
1004 pm edt sun jun 21 2026

.overnight...w winds 5 to 10 kt. seas 2 to 3 ft. wave detail: s
3 ft at 7 seconds and se 2 ft at 8 seconds. 
.mon...sw winds around 5 kt, becoming se in the afternoon. seas
around 2 ft. wave detail: s 2 ft at 7 seconds and se 1 foot at
12 seconds. a chance of showers in the afternoon. 
.mon night...s winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. seas 2 to 4 ft. wave detail: sw 4 ft at 6 seconds and s
3 ft at 9 seconds. a chance of showers in the evening. showers
likely after midnight. 
.tue...sw winds 15 to 20 kt, becoming nw 5 to 10 kt in the
afternoon. seas 2 to 4 ft. wave detail: s 4 ft at 7 seconds.
showers. a chance of tstms in the morning. 
.tue night...nw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: s
3 ft at 7 seconds and e 2 ft at 8 seconds. a chance of showers in
the evening. 
.wed and wed night...w winds 10 to 15 kt. seas 2 to 3 ft. wave
detail: se 3 ft at 7 seconds and nw 1 foot at 3 seconds. 
.thu and thu night...sw winds 5 to 10 kt. seas 2 to 3 ft. 
.fri and fri night...s winds 10 to 15 kt. 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 220205
cwfbox
expires:202606221500;;156893

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 pm edt sun jun 21 2026

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


anz236-221500-
narragansett bay-
1004 pm edt sun jun 21 2026

.overnight...w winds 5 to 10 kt. waves around 2 ft. 
.mon...s winds around 5 kt, increasing to 5 to 10 kt in the
afternoon. waves 1 foot or less. a chance of showers in the
afternoon. 
.mon night...s winds 10 to 15 kt with gusts up to 20 kt. waves
2 to 3 ft. a chance of showers in the evening. showers likely
after midnight. 
.tue...sw winds 10 to 15 kt with gusts up to 20 kt, becoming nw
5 to 10 kt in the afternoon. waves 2 to 3 ft. showers. a chance
of tstms in the morning. 
.tue night...nw winds 5 to 10 kt. waves around 2 ft. a chance of
showers in the evening. 
.wed and wed night...w winds 5 to 10 kt. waves around 2 ft. 
.thu and thu night...sw winds 5 to 10 kt. waves around 2 ft. 
.fri and fri night...s winds 5 to 10 kt. 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 220205
cwfbox
expires:202606221500;;156891

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 pm edt sun jun 21 2026

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


anz237-221500-
block island sound-
1004 pm edt sun jun 21 2026

.overnight...w winds 5 to 10 kt, diminishing to around 5 kt. seas
around 2 ft. wave detail: s 2 ft at 7 seconds and w 1 foot at
3 seconds. 
.mon...s winds around 5 kt, becoming se in the afternoon. seas
around 2 ft. wave detail: s 2 ft at 7 seconds. a chance of
showers in the afternoon. 
.mon night...s winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 4 ft. wave detail: s 3 ft at 6 seconds. a chance of showers
in the evening. showers likely after midnight. 
.tue...sw winds 10 to 15 kt with gusts up to 20 kt, becoming nw
5 to 10 kt in the afternoon. seas 2 to 4 ft. wave detail: s 3 ft
at 6 seconds. showers. a chance of tstms in the morning. 
.tue night...nw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se
3 ft at 7 seconds and nw 1 foot at 5 seconds. a chance of showers
in the evening. 
.wed and wed night...w winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: se 3 ft at 7 seconds and nw 1 foot at 2 seconds. 
.thu and thu night...sw winds 5 to 10 kt. seas around 2 ft. 
.fri and fri night...s winds 5 to 10 kt. 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 220205
cwfbox
expires:202606221500;;156885

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 pm edt sun jun 21 2026

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


anz255-221500-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
1004 pm edt sun jun 21 2026

...small craft advisory in effect from monday afternoon through
tuesday morning...

.overnight...w winds 10 to 15 kt, diminishing to 5 to 10 kt. seas
2 to 3 ft. wave detail: sw 3 ft at 7 seconds and w 1 foot at
3 seconds. 
.mon...sw winds around 5 kt, becoming s in the afternoon. seas
around 2 ft. wave detail: s 2 ft at 7 seconds and w 1 foot at
4 seconds. 
.mon night...s winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 4 ft. wave detail: se 4 ft at 6 seconds and sw 1 foot at
9 seconds. a chance of showers after midnight. 
.tue...s winds 15 to 20 kt, becoming w 10 to 15 kt in the
afternoon. seas 3 to 4 ft. wave detail: sw 4 ft at 6 seconds and
e 1 foot at 8 seconds. showers. a chance of tstms in the morning.
.tue night...nw winds 5 to 10 kt. seas 3 to 4 ft. wave detail: s
4 ft at 7 seconds and nw 2 ft at 3 seconds. a chance of showers
in the evening. 
.wed and wed night...sw winds 5 to 10 kt. seas 2 to 4 ft. wave
detail: s 4 ft at 7 seconds and nw 1 foot at 2 seconds. 
.thu through fri...s winds 5 to 10 kt. seas 2 to 3 ft. 
.fri night...sw winds 5 to 10 kt. 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.

$$