fzus51 kbox 221703
cwfbox
expires:202607230600;;417641

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt wed jul 22 2026

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


anz231-230600-
cape cod bay-
103 pm edt wed jul 22 2026

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

.this afternoon...sw winds around 15 kt with gusts up to 25 kt.
seas 3 to 4 ft. wave detail: sw 2 ft at 3 seconds and se 1 foot
at 9 seconds. a slight chance of showers. 
.tonight...sw winds 10 to 15 kt with gusts up to 25 kt, becoming
w 5 to 10 kt after midnight. seas 2 to 4 ft. wave detail: sw 2 ft
at 3 seconds and se 1 foot at 11 seconds. 
.thu...nw winds 5 to 10 kt, becoming ne in the afternoon. seas
around 2 ft. wave detail: nw 1 foot at 2 seconds and se 1 foot at
11 seconds. 
.thu night...se winds around 5 kt, becoming sw after midnight.
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 8 seconds,
becoming sw 1 foot at 3 seconds and se 1 foot at 8 seconds. 
.fri and fri night...e winds around 5 kt. seas 1 foot or less.
wave detail: e 1 foot at 8 seconds and s 1 foot at 9 seconds. 
.sat through sun night...s winds 5 to 10 kt. seas around 2 ft.
wave detail: se 2 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 221703
cwfbox
expires:202607230600;;417645

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt wed jul 22 2026

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


anz232-230600-
nantucket sound-
103 pm edt wed jul 22 2026

...small craft advisory in effect through late tonight...

.this afternoon...sw winds 20 to 25 kt with gusts up to 30 kt.
seas 3 to 5 ft. wave detail: sw 4 ft at 5 seconds and se 1 foot
at 9 seconds. a chance of showers.
.tonight...sw winds 20 to 25 kt with gusts up to 30 kt, becoming
w 10 to 15 kt with gusts up to 20 kt after midnight. seas 3 to
5 ft. wave detail: sw 4 ft at 5 seconds and se 2 ft at
10 seconds. patchy fog in the evening. a chance of showers after
midnight. vsby 1 to 3 nm. 
.thu...n winds around 10 kt, becoming ne in the afternoon. seas
2 to 4 ft. wave detail: nw 2 ft at 5 seconds and e 1 foot at
9 seconds. 
.thu night...e winds 5 to 10 kt, becoming ne after midnight. seas
2 to 3 ft. wave detail: sw 1 foot at 6 seconds and e 1 foot at
7 seconds. 
.fri and fri night...e winds 5 to 10 kt. seas around 2 ft. wave
detail: sw 1 foot at 5 seconds and e 1 foot at 8 seconds. 
.sat through sun night...n winds 5 to 10 kt. seas around 2 ft.
wave detail: e 2 ft at 6 seconds and s 1 foot at 7 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 221703
cwfbox
expires:202607230600;;417646

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt wed jul 22 2026

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


anz233-230600-
vineyard sound-
103 pm edt wed jul 22 2026

...small craft advisory in effect through late tonight...

.this afternoon...sw winds around 20 kt with gusts up to 25 kt.
seas 4 to 6 ft. wave detail: sw 6 ft at 9 seconds and ne 2 ft at
9 seconds. a slight chance of showers. 
.tonight...sw winds 15 to 20 kt with gusts up to 25 kt, becoming
nw 5 to 10 kt after midnight. seas 4 to 6 ft. wave detail: sw
6 ft at 9 seconds and e 1 foot at 9 seconds. 
.thu...n winds 5 to 10 kt, becoming e in the afternoon. seas 2 to
4 ft. wave detail: sw 4 ft at 9 seconds and ne 2 ft at 7 seconds.
.thu night...se winds 5 to 10 kt, becoming w after midnight. seas
2 to 3 ft. wave detail: sw 3 ft at 8 seconds and e 2 ft at
7 seconds. 
.fri and fri night...e winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: sw 2 ft at 7 seconds and e 1 foot at 6 seconds. 
.sat through sun night...s winds 5 to 10 kt. seas around 2 ft.
wave detail: s 1 foot at 6 seconds and e 1 foot at 6 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 221703
cwfbox
expires:202607230600;;417647

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt wed jul 22 2026

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


anz234-230600-
buzzards bay-
103 pm edt wed jul 22 2026

...small craft advisory in effect through late tonight...

.this afternoon...sw winds around 20 kt with gusts up to 30 kt.
seas 3 to 4 ft. wave detail: sw 4 ft at 6 seconds and se 2 ft at
9 seconds. a slight chance of showers. 
.tonight...sw winds 15 to 20 kt with gusts up to 25 kt, becoming
nw 5 to 10 kt after midnight. seas 2 to 4 ft. wave detail: sw
4 ft at 6 seconds and se 2 ft at 9 seconds. 
.thu...n winds 5 to 10 kt, becoming e in the afternoon. seas 2 to
3 ft. wave detail: e 3 ft at 9 seconds and w 2 ft at 7 seconds. 
.thu night...se winds 5 to 10 kt, becoming w after midnight. seas
around 2 ft. wave detail: se 2 ft at 7 seconds. 
.fri...ne winds around 5 kt, becoming se in the afternoon. seas
around 2 ft. wave detail: e 1 foot at 6 seconds and sw 1 foot at
6 seconds. 
.fri night...se winds 5 to 10 kt, becoming ne after midnight.
seas around 2 ft in the evening, then 1 foot or less. wave
detail: se 1 foot at 5 seconds, becoming e 1 foot at 3 seconds
and s 1 foot at 6 seconds. 
.sat through sun night...s 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 221703
cwfbox
expires:202607230600;;417648

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt wed jul 22 2026

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


anz235-230600-
rhode island sound-
103 pm edt wed jul 22 2026

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

.this afternoon...sw winds around 20 kt with gusts up to 25 kt.
seas 5 to 7 ft. wave detail: s 7 ft at 9 seconds and e 3 ft at
9 seconds. a slight chance of showers. 
.tonight...sw winds 15 to 20 kt with gusts up to 25 kt, becoming
nw around 10 kt after midnight. seas 5 to 7 ft. wave detail: s
7 ft at 9 seconds and e 4 ft at 9 seconds. 
.thu...n winds 5 to 10 kt, becoming e in the afternoon. seas 3 to
5 ft. wave detail: s 5 ft at 9 seconds and e 3 ft at 8 seconds. 
.thu night...s winds 5 to 10 kt, becoming nw after midnight. seas
3 to 4 ft. wave detail: s 4 ft at 8 seconds and se 3 ft at
7 seconds. 
.fri and fri night...ne winds 5 to 10 kt. seas 2 to 4 ft. wave
detail: se 4 ft at 7 seconds. 
.sat through sun night...s winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: s 2 ft at 4 seconds and se 2 ft at 8 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 221703
cwfbox
expires:202607230600;;417651

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt wed jul 22 2026

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


anz236-230600-
narragansett bay-
103 pm edt wed jul 22 2026

.this afternoon...sw winds around 15 kt with gusts up to 25 kt.
waves 3 to 4 ft. a slight chance of showers. 
.tonight...sw winds 10 to 15 kt with gusts up to 20 kt, becoming
nw 5 to 10 kt after midnight. waves 2 to 4 ft. 
.thu...n winds 5 to 10 kt, becoming ne in the afternoon. waves
2 to 3 ft. 
.thu night...s winds 5 to 10 kt, becoming w after midnight. waves
2 to 3 ft. 
.fri...ne winds around 5 kt, becoming se in the afternoon. waves
around 2 ft. 
.fri night...se winds 5 to 10 kt, becoming ne after midnight.
waves around 2 ft. 
.sat through sun night...sw winds 5 to 10 kt. waves 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 221703
cwfbox
expires:202607230600;;417639

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt wed jul 22 2026

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


anz250-230600-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
103 pm edt wed jul 22 2026

...small craft advisory in effect through late tonight...

.this afternoon...s winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 5 ft. wave detail: s 4 ft at 5 seconds and se 4 ft at
8 seconds. a slight chance of showers. 
.tonight...sw winds 10 to 15 kt with gusts up to 25 kt, becoming
w after midnight. seas 3 to 5 ft. wave detail: se 4 ft at
9 seconds and sw 3 ft at 4 seconds. 
.thu...nw winds 5 to 10 kt, becoming e in the afternoon. seas
2 to 4 ft. wave detail: se 3 ft at 9 seconds and w 1 foot at
3 seconds. 
.thu night...s winds 5 to 10 kt, becoming sw after midnight. seas
2 to 3 ft. wave detail: se 3 ft at 8 seconds and sw 2 ft at
5 seconds. 
.fri and fri night...se winds around 5 kt. seas 2 to 3 ft. wave
detail: s 2 ft at 7 seconds. 
.sat through sun night...s winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: se 3 ft at 7 seconds and s 3 ft at 8 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 221703
cwfbox
expires:202607230600;;417642

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt wed jul 22 2026

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


anz254-230600-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
103 pm edt wed jul 22 2026

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

.this afternoon...sw winds 20 to 25 kt with gusts up to 30 kt.
seas 5 to 8 ft. wave detail: s 8 ft at 9 seconds and se 5 ft at
9 seconds. a chance of showers.
.tonight...sw winds 15 to 20 kt, becoming w 10 to 15 kt after
midnight. gusts up to 25 kt. seas 5 to 8 ft. wave detail: s 7 ft
at 9 seconds and se 6 ft at 10 seconds. patchy fog. showers
likely. vsby 1 to 3 nm. 
.thu...nw winds 5 to 10 kt, becoming ne in the afternoon. seas
4 to 6 ft. wave detail: sw 5 ft at 8 seconds and se 5 ft at
9 seconds. a chance of showers in the morning. 
.thu night...e winds around 5 kt, becoming ne around 5 kt after
midnight. seas 2 to 4 ft. wave detail: s 4 ft at 8 seconds and se
3 ft at 8 seconds. 
.fri and fri night...e winds 5 to 10 kt. seas 2 to 4 ft. wave
detail: se 3 ft at 7 seconds. 
.sat through sun night...n winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: se 3 ft at 7 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 221703
cwfbox
expires:202607230600;;417643

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt wed jul 22 2026

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


anz255-230600-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
103 pm edt wed jul 22 2026

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

.this afternoon...sw winds 20 to 25 kt with gusts up to 30 kt.
seas 7 to 9 ft. wave detail: s 9 ft at 9 seconds and e 2 ft at
9 seconds. a chance of showers. 
.tonight...sw winds 15 to 20 kt, becoming w 10 to 15 kt after
midnight. gusts up to 25 kt. seas 6 to 9 ft. wave detail: s 8 ft
at 9 seconds and se 7 ft at 12 seconds. patchy fog. showers
likely. vsby 1 to 3 nm. 
.thu...n winds around 10 kt, becoming ne in the afternoon. seas
5 to 7 ft. wave detail: s 6 ft at 9 seconds and ne 6 ft at
11 seconds. a chance of showers in the morning. 
.thu night...ne winds 5 to 10 kt. seas 3 to 5 ft. wave detail: s
5 ft at 8 seconds and e 1 foot at 7 seconds. 
.fri and fri night...ne winds 5 to 10 kt. seas 2 to 4 ft. wave
detail: s 4 ft at 7 seconds and se 2 ft at 8 seconds. 
.sat through sun night...n winds 10 to 15 kt. seas 2 to 3 ft.
wave detail: e 3 ft at 7 seconds and s 2 ft at 8 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.

$$