fzus51 kbox 211705
cwfbox
expires:202606220600;;134130

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

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


anz231-220600-
cape cod bay-
104 pm edt sun jun 21 2026

.this afternoon...s winds 5 to 10 kt. seas around 2 ft. wave
detail: w 1 foot at 3 seconds and ne 1 foot at 5 seconds. 
.tonight...w winds 5 to 10 kt. seas around 2 ft in the evening,
then 1 foot or less. wave detail: sw 1 foot at 3 seconds and e
1 foot at 5 seconds, becoming w 1 foot at 3 seconds and se 1 foot
at 4 seconds. 
.mon...sw winds around 5 kt, becoming s in the afternoon. seas
1 foot or less, then around 2 ft in the afternoon. wave detail: w
1 foot at 3 seconds and e 1 foot at 3 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 3 ft. wave detail: s 2 ft at 4 seconds and se 1 foot at
7 seconds. showers with a chance of tstms. 
.tue...sw winds 10 to 15 kt with gusts up to 20 kt, becoming n
5 to 10 kt in the afternoon. seas around 2 ft. wave detail: s
2 ft at 4 seconds and e 1 foot at 11 seconds. showers.
.tue night...sw winds around 5 kt, becoming nw after midnight.
seas 1 foot or less. wave detail: nw 1 foot at 2 seconds and e
1 foot at 7 seconds. a chance of showers in the evening. 
.wed through thu night...s winds 5 to 10 kt. seas around 2 ft.  

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 211705
cwfbox
expires:202606220600;;134134

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

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


anz232-220600-
nantucket sound-
104 pm edt sun jun 21 2026

.this afternoon...sw winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. wave detail: sw 2 ft at 3 seconds and s 1 foot
at 8 seconds. 
.tonight...w winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. seas around 2 ft. wave detail: w 2 ft at 3 seconds and
e 1 foot at 8 seconds. 
.mon...sw winds around 5 kt, becoming s in the afternoon. seas
around 2 ft. wave detail: w 1 foot at 4 seconds and se 1 foot at
7 seconds. a chance of showers in the afternoon. 
.mon night...s winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 4 ft. wave detail: sw 3 ft at 4 seconds and se 1 foot at
7 seconds. showers. a chance of tstms after midnight. 
.tue...sw winds 10 to 15 kt with gusts up to 20 kt, becoming nw
in the afternoon. seas 2 to 4 ft. wave detail: s 3 ft at
5 seconds and e 1 foot at 12 seconds. showers.
.tue night...nw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: nw
1 foot at 4 seconds and s 1 foot at 6 seconds. a chance of
showers in the evening. 
.wed through thu night...s winds 5 to 10 kt. seas around 2 ft.  

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 211705
cwfbox
expires:202606220600;;134135

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

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


anz233-220600-
vineyard sound-
104 pm edt sun jun 21 2026

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

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 211705
cwfbox
expires:202606220600;;134136

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

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


anz234-220600-
buzzards bay-
104 pm edt sun jun 21 2026

.this afternoon...sw winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: sw 2 ft at 3 seconds and sw 2 ft at
7 seconds. a slight chance of showers. 
.tonight...w winds 10 to 15 kt with gusts up to 20 kt,
diminishing to around 5 kt after midnight. seas around 2 ft. wave
detail: sw 2 ft at 4 seconds and s 1 foot at 7 seconds. 
.mon...sw winds around 5 kt, becoming s in the afternoon. seas
1 foot or less, then around 2 ft in the afternoon. wave detail:
sw 1 foot at 6 seconds and se 1 foot at 12 seconds, becoming s
2 ft at 6 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 3 ft. wave detail: s 3 ft at 6 seconds.
showers with a chance of tstms. 
.tue...sw winds 10 to 15 kt with gusts up to 20 kt, becoming n
5 to 10 kt in the afternoon. seas 2 to 3 ft. wave detail: sw 3 ft
at 6 seconds. showers.
.tue night...se winds 5 to 10 kt, becoming nw after midnight.
seas around 2 ft. wave detail: ne 1 foot at 2 seconds and sw
1 foot at 5 seconds. a chance of showers in the evening. 
.wed through thu night...s winds 5 to 10 kt. seas around 2 ft.  

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 211705
cwfbox
expires:202606220600;;134137

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

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


anz235-220600-
rhode island sound-
104 pm edt sun jun 21 2026

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

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 211705
cwfbox
expires:202606220600;;134140

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

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


anz236-220600-
narragansett bay-
104 pm edt sun jun 21 2026

.this afternoon...sw winds 10 to 15 kt with gusts up to 20 kt.
waves around 2 ft. a slight chance of showers. 
.tonight...w winds 5 to 10 kt, becoming nw after midnight. waves
around 2 ft. 
.mon...se winds around 5 kt, becoming s in the afternoon. waves
around 2 ft. 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. showers with a chance of tstms. 
.tue...w winds 10 to 15 kt, becoming n 5 to 10 kt in the
afternoon. waves 2 to 3 ft. showers, mainly in the morning. 
.tue night...w winds around 5 kt. waves around 2 ft. 
.wed through thu night...s winds 5 to 10 kt. waves around 2 ft.  

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 211705
cwfbox
expires:202606220600;;134128

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

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


anz250-220600-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
104 pm edt sun jun 21 2026

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

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 211705
cwfbox
expires:202606220600;;134131

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

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


anz254-220600-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
104 pm edt sun jun 21 2026

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

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 211705
cwfbox
expires:202606220600;;134132

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

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


anz255-220600-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
104 pm edt sun jun 21 2026

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

$$