fzus51 kbox 201706
cwfbox
expires:202603210600;;013158

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
105 pm edt fri mar 20 2026

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


anz231-210600-
cape cod bay-
105 pm edt fri mar 20 2026

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

.this afternoon...s winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. wave detail: s 2 ft at 3 seconds and se 2 ft at
8 seconds. 
.tonight...sw winds 15 to 20 kt with gusts up to 30 kt. seas 3 to
5 ft. wave detail: s 3 ft at 5 seconds and e 2 ft at 9 seconds.
showers.
.sat...nw winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: w 2 ft at 3 seconds and se 2 ft at 8 seconds.
a chance of showers in the morning. 
.sat night...nw winds 5 to 10 kt. gusts up to 20 kt in the
evening. seas around 2 ft. wave detail: n 2 ft at 5 seconds and
se 2 ft at 8 seconds. 
.sun...s winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. seas around 2 ft. wave detail: n
2 ft at 5 seconds and sw 1 foot at 5 seconds. a chance of rain in
the afternoon. 
.sun night...sw winds 10 to 15 kt, becoming n with gusts up to
20 kt after midnight. seas around 2 ft. wave detail: n 2 ft at
4 seconds and s 1 foot at 3 seconds. rain likely. 
.mon...n winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
4 ft. rain likely. 
.mon night and tue...n winds 15 to 20 kt. seas 3 to 5 ft. 
.tue night...sw 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.

$$

fzus51 kbox 201706
cwfbox
expires:202603210600;;013162

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
105 pm edt fri mar 20 2026

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


anz232-210600-
nantucket sound-
105 pm edt fri mar 20 2026

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

.this afternoon...s winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 3 ft. wave detail: s 3 ft at 4 seconds and se 1 foot at
8 seconds. 
.tonight...sw winds 15 to 20 kt with gusts up to 30 kt. seas 3 to
4 ft. wave detail: s 4 ft at 5 seconds and se 1 foot at
9 seconds. showers.
.sat...w winds 10 to 15 kt, becoming n in the afternoon. gusts up
to 20 kt. seas 2 to 4 ft. wave detail: w 3 ft at 5 seconds and se
2 ft at 9 seconds. a chance of showers in the morning. 
.sat night...n winds 5 to 10 kt, becoming ne after midnight. seas
2 to 3 ft. wave detail: n 2 ft at 5 seconds and se 1 foot at
8 seconds. 
.sun...s winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. seas around 2 ft. wave detail: s
2 ft at 4 seconds and ne 1 foot at 5 seconds. a chance of rain in
the afternoon. 
.sun night...sw winds 10 to 15 kt, becoming n 15 to 20 kt after
midnight. seas 2 to 3 ft. wave detail: sw 2 ft at 4 seconds and e
1 foot at 5 seconds. a chance of rain in the evening, then rain
likely after midnight. 
.mon...n winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
4 ft. rain likely. 
.mon night through tue night...sw winds 15 to 20 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.

$$

fzus51 kbox 201706
cwfbox
expires:202603210600;;013163

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
105 pm edt fri mar 20 2026

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


anz233-210600-
vineyard sound-
105 pm edt fri mar 20 2026

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

.this afternoon...s winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. wave detail: sw 2 ft at 4 seconds and se 1 foot
at 8 seconds. 
.tonight...sw winds 20 to 25 kt with gusts up to 30 kt. seas 3 to
5 ft. wave detail: sw 5 ft at 7 seconds and se 1 foot at
9 seconds. showers.
.sat...w winds 10 to 15 kt, becoming nw in the afternoon. gusts
up to 20 kt. seas 2 to 4 ft. wave detail: sw 4 ft at 7 seconds
and s 3 ft at 8 seconds. a chance of showers in the morning. 
.sat night...n winds 5 to 10 kt, becoming ne after midnight. seas
2 to 3 ft. wave detail: sw 2 ft at 7 seconds and n 1 foot at
4 seconds. 
.sun...s winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas around 2 ft. wave detail: s 2 ft at 7 seconds and ne 1 foot
at 4 seconds. a chance of rain in the afternoon. 
.sun night...sw winds 10 to 15 kt, becoming n 15 to 20 kt after
midnight. seas 2 to 3 ft. wave detail: sw 3 ft at 5 seconds and
ne 1 foot at 4 seconds. a chance of rain in the evening, then
rain likely after midnight.
.mon...n winds 15 to 20 kt. seas 3 to 5 ft. rain likely. 
.mon night...n winds 15 to 20 kt. seas 3 to 5 ft. 
.tue and tue night...nw winds 15 to 20 kt, becoming sw. 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 201706
cwfbox
expires:202603210600;;013164

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
105 pm edt fri mar 20 2026

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


anz234-210600-
buzzards bay-
105 pm edt fri mar 20 2026

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

.this afternoon...s winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. wave detail: sw 2 ft at 3 seconds and se 1 foot
at 8 seconds. 
.tonight...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. showers.
.sat...nw winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: sw 3 ft at 7 seconds and s 3 ft at 8 seconds.
a chance of showers in the morning. 
.sat night...n winds 5 to 10 kt, becoming ne after midnight. seas
around 2 ft. wave detail: w 2 ft at 7 seconds and n 1 foot at
4 seconds. 
.sun...s winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas around 2 ft. wave detail: se 2 ft at 7 seconds and ne 1 foot
at 5 seconds. a chance of rain in the afternoon. 
.sun night...sw winds 10 to 15 kt, becoming n 15 to 20 kt after
midnight. seas 2 to 3 ft. wave detail: sw 2 ft at 4 seconds and
ne 1 foot at 5 seconds. a chance of rain in the evening, then
rain likely after midnight.
.mon...n winds 15 to 20 kt. seas 2 to 4 ft. rain likely. 
.mon night and tue...n winds 15 to 20 kt. seas 2 to 4 ft. 
.tue night...sw winds 10 to 15 kt with gusts up to 20 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 201706
cwfbox
expires:202603210600;;013165

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
105 pm edt fri mar 20 2026

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


anz235-210600-
rhode island sound-
105 pm edt fri mar 20 2026

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

.this afternoon...s winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. wave detail: s 4 ft at 4 seconds and se 3 ft at
8 seconds. 
.tonight...sw winds 20 to 25 kt, diminishing to 15 to 20 kt after
midnight. gusts up to 30 kt. seas 4 to 6 ft. wave detail: s 6 ft
at 6 seconds and se 2 ft at 9 seconds. showers.
.sat...nw winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
5 ft. wave detail: sw 5 ft at 7 seconds and s 5 ft at 8 seconds.
a chance of showers in the morning. 
.sat night...n winds 5 to 10 kt with gusts up to 20 kt, becoming
e after midnight. seas 2 to 4 ft. wave detail: sw 4 ft at
7 seconds and se 2 ft at 8 seconds. 
.sun...s winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas 2 to 3 ft. wave detail: s 3 ft at 5 seconds and se 2 ft at
8 seconds. a chance of rain in the afternoon. 
.sun night...sw winds around 15 kt, becoming n after midnight.
seas 2 to 4 ft. wave detail: s 4 ft at 5 seconds and se 2 ft at
9 seconds. a chance of rain in the evening, then rain likely
after midnight. 
.mon...n winds 15 to 20 kt with gusts up to 25 kt. seas 4 to
6 ft. rain likely. 
.mon night...n winds 15 to 20 kt. seas 4 to 6 ft. 
.tue and tue night...nw winds 15 to 20 kt, becoming sw. 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 201706
cwfbox
expires:202603210600;;013168

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
105 pm edt fri mar 20 2026

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


anz236-210600-
narragansett bay-
105 pm edt fri mar 20 2026

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

.this afternoon...s winds 15 to 20 kt with gusts up to 25 kt.
waves 2 to 3 ft. 
.tonight...sw winds 15 to 20 kt with gusts up to 30 kt. waves
2 to 4 ft. showers.
.sat...nw winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. gusts up to 20 kt. waves 2 to 3 ft. 
.sat night...n winds 5 to 10 kt, becoming e after midnight. waves
2 to 3 ft. 
.sun...s winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. waves around 2 ft. a chance of rain
in the afternoon. 
.sun night...s winds 10 to 15 kt, becoming n with gusts up to
20 kt after midnight. waves around 2 ft. a chance of rain in the
evening, then rain likely after midnight. 
.mon...n winds around 15 kt with gusts up to 20 kt. waves 2 to
3 ft. rain likely. 
.mon night through tue night...sw winds 10 to 15 kt with gusts up
to 20 kt. waves 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 201706
cwfbox
expires:202603210600;;013156

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
105 pm edt fri mar 20 2026

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


anz250-210600-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
105 pm edt fri mar 20 2026

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

.this afternoon...s winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. wave detail: s 3 ft at 4 seconds and se 2 ft at
8 seconds. 
.tonight...s winds 20 to 25 kt, becoming sw 15 to 20 kt after
midnight. gusts up to 30 kt. seas 4 to 6 ft. wave detail: se 5 ft
at 5 seconds and se 4 ft at 9 seconds. showers.
.sat...nw winds 10 to 15 kt with gusts up to 25 kt. seas 3 to
5 ft. wave detail: se 4 ft at 8 seconds and w 3 ft at 5 seconds.
a chance of showers in the morning. 
.sat night...nw winds 10 to 15 kt. gusts up to 25 kt in the
evening. seas around 3 ft. wave detail: n 3 ft at 5 seconds and
se 3 ft at 8 seconds. 
.sun...s winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas 2 to 3 ft. wave detail: sw 2 ft at 4 seconds and n 2 ft at
5 seconds. a chance of snow. a chance of rain in the morning,
then rain likely in the afternoon.
.sun night...se winds 10 to 15 kt, becoming ne 15 to 20 kt after
midnight. seas 2 to 3 ft, building to 3 to 5 ft after midnight.
wave detail: se 3 ft at 4 seconds and se 2 ft at 9 seconds,
becoming ne 4 ft at 5 seconds and se 2 ft at 11 seconds. rain
likely. 
.mon...ne winds 15 to 20 kt with gusts up to 25 kt. seas 4 to
6 ft. rain likely. 
.mon night and tue...n winds 20 to 25 kt, becoming nw 15 to
20 kt. seas 5 to 8 ft. 
.tue night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
4 to 5 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 201706
cwfbox
expires:202603210600;;013159

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
105 pm edt fri mar 20 2026

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


anz254-210600-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
105 pm edt fri mar 20 2026

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

.this afternoon...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 3 ft at
8 seconds. 
.tonight...s winds 20 to 25 kt, becoming sw 15 to 20 kt after
midnight. gusts up to 30 kt. seas 4 to 6 ft. wave detail: s 5 ft
at 5 seconds and e 3 ft at 9 seconds. a chance of showers in the
evening, then showers after midnight. 
.sat...w winds 10 to 15 kt, becoming nw 15 to 20 kt in the
afternoon. gusts up to 25 kt. seas 4 to 6 ft. wave detail: sw
5 ft at 6 seconds and e 4 ft at 9 seconds. a chance of showers in
the morning. 
.sat night...n winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas 3 to 4 ft. wave detail: n 3 ft at 6 seconds and se
3 ft at 8 seconds. 
.sun...s winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas 3 to 4 ft. wave detail: s 3 ft at 5 seconds and n 2 ft at
6 seconds. a chance of rain in the afternoon. 
.sun night...sw winds 10 to 15 kt, becoming n 15 to 20 kt after
midnight. seas 3 to 5 ft. wave detail: w 4 ft at 5 seconds and ne
3 ft at 5 seconds. a chance of rain in the evening, then rain
likely after midnight. 
.mon...n winds 15 to 20 kt with gusts up to 25 kt. seas 4 to
6 ft. rain likely. 
.mon night and tue...n winds 20 to 25 kt. seas 5 to 8 ft. 
.tue night...sw winds 15 to 20 kt. seas 4 to 6 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 201706
cwfbox
expires:202603210600;;013160

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
105 pm edt fri mar 20 2026

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


anz255-210600-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
105 pm edt fri mar 20 2026

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

.this afternoon...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 3 ft at
8 seconds. 
.tonight...sw winds 20 to 25 kt with gusts up to 30 kt. seas 5 to
7 ft. wave detail: sw 7 ft at 7 seconds and e 3 ft at 9 seconds.
a chance of showers in the evening, then showers after midnight. 
.sat...w winds 15 to 20 kt, becoming n 10 to 15 kt in the
afternoon. gusts up to 25 kt. seas 5 to 7 ft. wave detail: sw
6 ft at 7 seconds and e 3 ft at 8 seconds. a chance of showers in
the morning. 
.sat night...n winds around 10 kt with gusts up to 20 kt,
becoming ne after midnight. seas 3 to 5 ft. wave detail: sw 4 ft
at 7 seconds and se 3 ft at 8 seconds. 
.sun...s winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas 3 to 4 ft. wave detail: s 3 ft at 7 seconds and se 2 ft at
8 seconds. 
.sun night...sw winds around 15 kt, becoming nw after midnight.
seas 3 to 5 ft. wave detail: sw 5 ft at 6 seconds and se 3 ft at
10 seconds. a chance of rain in the evening, then rain likely
after midnight.
.mon...n winds around 20 kt with gusts up to 25 kt. seas 5 to
7 ft. a chance of rain. 
.mon night...n winds 20 to 25 kt. seas 5 to 7 ft. 
.tue...nw winds 20 to 25 kt. seas 4 to 6 ft. 
.tue night...sw winds 15 to 20 kt. seas 3 to 5 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.

$$