fzus51 kbox 221403
cwfbox
expires:202607230300;;411170

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt wed jul 22 2026

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


anz231-230300-
cape cod bay-
1003 am edt wed jul 22 2026

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

.this afternoon...sw winds 15 to 20 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 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 221403
cwfbox
expires:202607230300;;411174

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt wed jul 22 2026

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


anz232-230300-
nantucket sound-
1003 am 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 4 to 6 ft. wave detail: sw 4 ft at 5 seconds and se 1 foot
at 8 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 221403
cwfbox
expires:202607230300;;411175

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt wed jul 22 2026

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


anz233-230300-
vineyard sound-
1003 am 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 4 to 6 ft. wave detail: sw 6 ft at 7 seconds and ne 2 ft at
9 seconds. a 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: e 1 foot at 6 seconds and s 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 221403
cwfbox
expires:202607230300;;411176

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt wed jul 22 2026

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


anz234-230300-
buzzards bay-
1003 am 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 5 ft. wave detail: sw 4 ft at 5 seconds and se 2 ft at
9 seconds. a 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 221403
cwfbox
expires:202607230300;;411177

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt wed jul 22 2026

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


anz235-230300-
rhode island sound-
1003 am edt wed jul 22 2026

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

.this afternoon...sw winds around 20 kt with gusts up to 30 kt.
seas 5 to 7 ft. wave detail: s 7 ft at 8 seconds and e 3 ft at
8 seconds. a 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 221403
cwfbox
expires:202607230300;;411180

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt wed jul 22 2026

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


anz236-230300-
narragansett bay-
1003 am edt wed jul 22 2026

.this afternoon...sw winds 15 to 20 kt with gusts up to 25 kt.
waves 2 to 4 ft. a chance of showers this morning. 
.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 221403
cwfbox
expires:202607230300;;411168

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt wed jul 22 2026

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


anz250-230300-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
1003 am 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 5 ft at 7 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 221403
cwfbox
expires:202607230300;;411171

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt wed jul 22 2026

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


anz254-230300-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
1003 am 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 8 seconds and se 5 ft at
8 seconds. a chance of showers. patchy fog. 
.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 221403
cwfbox
expires:202607230300;;411172

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt wed jul 22 2026

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


anz255-230300-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
1003 am 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: sw 9 ft at 8 seconds and e 2 ft at
9 seconds. a chance of showers. isolated tstms. patchy fog. 
.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.  

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.

$$