fzus51 kbox 182005
cwfbox
expires:202607190900;;193982

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm edt sat jul 18 2026

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


anz231-190900-
cape cod bay-
405 pm edt sat jul 18 2026

...small craft advisory in effect through sunday morning...

.tonight...sw winds 15 to 20 kt with gusts up to 30 kt. seas 3 to
5 ft. wave detail: sw 3 ft at 4 seconds and w 3 ft at 5 seconds.
a chance of tstms. showers likely this evening, then a chance of
showers after midnight. areas of smoke this evening with vsby
1 to 3 nm. 
.sun...nw winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. gusts up to 20 kt. seas 2 to 3 ft. wave detail: w 2 ft
at 3 seconds and s 1 foot at 7 seconds. 
.sun night...nw winds around 5 kt. seas 1 foot or less. wave
detail: w 1 foot at 4 seconds and ne 1 foot at 7 seconds. 
.mon...nw 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 4 seconds and n 1 foot at 4 seconds, becoming sw
1 foot at 5 seconds and n 1 foot at 5 seconds. 
.mon night...s winds 5 to 10 kt. seas around 2 ft in the evening,
then 1 foot or less. wave detail: s 1 foot at 2 seconds and n
1 foot at 4 seconds, becoming s 1 foot at 2 seconds and nw 1 foot
at 3 seconds. 
.tue...s winds 5 to 10 kt, becoming se 10 to 15 kt in the
afternoon. gusts up to 20 kt. seas 2 to 3 ft. wave detail: sw
2 ft at 3 seconds and se 1 foot at 8 seconds. a chance of showers
in the afternoon. 
.tue night...se winds 10 to 15 kt with gusts up to 20 kt,
becoming s 15 to 20 kt with gusts up to 30 kt after midnight.
seas 2 to 3 ft. showers with a chance of tstms. 
.wed...s winds 20 to 25 kt with gusts up to 35 kt. seas 3 to
5 ft. showers.
.wed night...sw winds 15 to 20 kt with gusts up to 30 kt. seas
2 to 4 ft. showers likely. 
.thu and thu night...sw winds 5 to 10 kt. seas around 2 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 182005
cwfbox
expires:202607190900;;193986

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm edt sat jul 18 2026

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


anz232-190900-
nantucket sound-
405 pm edt sat jul 18 2026

...small craft advisory in effect through sunday morning...

.tonight...sw winds 20 to 25 kt with gusts up to 30 kt. seas 3 to
4 ft. wave detail: sw 4 ft at 5 seconds and e 1 foot at
8 seconds. a chance of tstms. showers this evening, then a chance
of showers after midnight. areas of smoke this evening. vsby 1 to
3 nm. 
.sun...w winds 15 to 20 kt with gusts up to 25 kt, becoming nw
5 to 10 kt in the afternoon. seas 2 to 4 ft. wave detail: sw 4 ft
at 5 seconds and se 1 foot at 8 seconds. 
.sun night...sw winds 5 to 10 kt, becoming nw after midnight.
seas 2 to 3 ft. wave detail: w 1 foot at 4 seconds and ne 1 foot
at 6 seconds. 
.mon...nw winds around 5 kt, becoming sw in the afternoon. seas
around 2 ft. wave detail: w 2 ft at 5 seconds and s 1 foot at
8 seconds. 
.mon night...s winds around 10 kt. seas around 2 ft. wave detail:
sw 2 ft at 4 seconds and s 1 foot at 8 seconds. 
.tue...se winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: s 2 ft at 3 seconds and sw 1 foot at
7 seconds. a chance of showers in the afternoon. 
.tue night...s winds 20 to 25 kt with gusts up to 30 kt. seas
3 to 4 ft, building to 4 to 6 ft after midnight. showers with a
chance of tstms. 
.wed and wed night...sw winds 25 to 30 kt with gusts up to 35 kt.
seas 4 to 6 ft. showers.
.thu...sw winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. a chance of showers. 
.thu night...sw winds 10 to 15 kt. seas 2 to 4 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 182005
cwfbox
expires:202607190900;;193987

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm edt sat jul 18 2026

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


anz233-190900-
vineyard sound-
405 pm edt sat jul 18 2026

...small craft advisory in effect through sunday morning...

.tonight...sw winds 20 to 25 kt with gusts up to 30 kt. seas 3 to
4 ft. wave detail: s 4 ft at 7 seconds and w 2 ft at 6 seconds. a
chance of tstms. showers this evening, then showers likely after
midnight. areas of smoke this evening with vsby 1 nm or less. 
.sun...w winds 10 to 15 kt. gusts up to 20 kt in the morning.
seas 2 to 4 ft. wave detail: sw 4 ft at 7 seconds and se 3 ft at
8 seconds. 
.sun night...w winds 5 to 10 kt, becoming nw after midnight. seas
2 to 3 ft. wave detail: sw 3 ft at 7 seconds and nw 1 foot at
4 seconds. 
.mon...nw winds around 5 kt, becoming sw in the afternoon. seas
around 2 ft. wave detail: sw 2 ft at 4 seconds and sw 2 ft at
8 seconds. 
.mon night...s winds 5 to 10 kt. seas around 2 ft. wave detail:
sw 2 ft at 4 seconds and n 2 ft at 7 seconds. 
.tue...se winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: s 2 ft at 3 seconds and sw 2 ft at 7 seconds.
a chance of showers in the afternoon. 
.tue night...se winds 15 to 20 kt, becoming s 20 to 25 kt after
midnight. gusts up to 30 kt. seas 2 to 4 ft, building to 4 to
6 ft after midnight. showers with a chance of tstms. 
.wed...sw winds 25 to 30 kt with gusts up to 35 kt. seas 5 to
7 ft. showers.
.wed night...sw winds 25 to 30 kt with gusts up to 35 kt. seas
4 to 6 ft. showers likely. 
.thu...sw winds 10 to 15 kt. seas 3 to 5 ft. a chance of showers.
.thu night...sw winds 5 to 10 kt. seas 2 to 4 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 182005
cwfbox
expires:202607190900;;193988

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm edt sat jul 18 2026

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


anz234-190900-
buzzards bay-
405 pm edt sat jul 18 2026

...small craft advisory in effect through sunday morning...

.tonight...sw winds 20 to 25 kt with gusts up to 30 kt. seas 2 to
4 ft. wave detail: sw 4 ft at 6 seconds and se 1 foot at
9 seconds. a chance of tstms. showers likely this evening, then a
chance of showers after midnight. areas of smoke this evening
with vsby 1 nm or less. 
.sun...nw winds 10 to 15 kt. gusts up to 20 kt in the morning.
seas 2 to 3 ft. wave detail: s 3 ft at 7 seconds and w 2 ft at
4 seconds. 
.sun night...nw winds 5 to 10 kt. seas around 2 ft. wave detail:
sw 2 ft at 7 seconds and nw 1 foot at 3 seconds. 
.mon...nw winds around 5 kt, becoming sw 10 to 15 kt with gusts
up to 20 kt in the afternoon. seas around 2 ft. wave detail: sw
2 ft at 8 seconds and w 2 ft at 8 seconds. 
.mon night...s winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. seas around 2 ft. wave detail: sw 2 ft at 3 seconds and
ne 1 foot at 5 seconds. 
.tue...s winds 10 to 15 kt with gusts up to 25 kt. seas 2 to
3 ft. wave detail: s 2 ft at 3 seconds and s 2 ft at 7 seconds. a
chance of showers in the afternoon. 
.tue night...se winds 15 to 20 kt, becoming s 20 to 25 kt after
midnight. gusts up to 30 kt. seas 3 to 5 ft. showers with a
chance of tstms. 
.wed...sw winds 25 to 30 kt with gusts up to 40 kt. seas 4 to
6 ft. showers.
.wed night...sw winds 25 to 30 kt with gusts up to 35 kt. seas
3 to 5 ft. showers likely. 
.thu and thu night...sw winds 10 to 15 kt with gusts up to 20 kt,
becoming w 5 to 10 kt. seas 2 to 4 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 182005
cwfbox
expires:202607190900;;193989

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm edt sat jul 18 2026

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


anz235-190900-
rhode island sound-
405 pm edt sat jul 18 2026

...small craft advisory in effect through sunday morning...

.tonight...sw winds 20 to 25 kt with gusts up to 30 kt. seas 3 to
5 ft. wave detail: s 5 ft at 7 seconds and w 2 ft at 5 seconds. a
chance of tstms. showers this evening, then a chance of showers
after midnight. areas of smoke this evening with vsby 1 nm or
less. 
.sun...w winds 10 to 15 kt. gusts up to 20 kt in the morning.
seas 3 to 4 ft. wave detail: sw 4 ft at 7 seconds and w 2 ft at
4 seconds. 
.sun night...nw winds 5 to 10 kt. seas 2 to 4 ft. wave detail: s
4 ft at 7 seconds and nw 2 ft at 5 seconds. 
.mon...nw winds around 5 kt, becoming sw in the afternoon. seas
2 to 3 ft. wave detail: w 3 ft at 5 seconds and s 3 ft at
8 seconds. 
.mon night...s winds around 10 kt. seas 2 to 3 ft. wave detail: w
3 ft at 4 seconds and s 3 ft at 8 seconds. 
.tue...se winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas 2 to 3 ft. wave detail: s 3 ft at 6 seconds and se 2 ft at
8 seconds. a chance of showers in the afternoon. 
.tue night...se winds 15 to 20 kt, becoming s 20 to 25 kt after
midnight. gusts up to 30 kt. seas 3 to 5 ft, building to 5 to
7 ft after midnight. showers with a chance of tstms. 
.wed and wed night...sw winds 25 to 30 kt with gusts up to 35 kt.
seas 5 to 8 ft. showers.
.thu...sw winds 10 to 15 kt. seas 5 to 7 ft. a chance of showers.
.thu night...w winds 5 to 10 kt. seas 3 to 5 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 182005
cwfbox
expires:202607190900;;193992

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm edt sat jul 18 2026

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


anz236-190900-
narragansett bay-
405 pm edt sat jul 18 2026

...small craft advisory in effect through sunday morning...

.tonight...sw winds 15 to 20 kt with gusts up to 25 kt. waves
2 to 3 ft. a chance of tstms. showers likely this evening, then a
slight chance of showers after midnight. smoke this evening with
vsby 1 nm or less. 
.sun...nw winds 10 to 15 kt. waves 2 to 3 ft. 
.sun night...nw winds 5 to 10 kt. waves around 2 ft. 
.mon...nw winds around 5 kt, becoming sw in the afternoon. waves
around 2 ft. 
.mon night...s winds 5 to 10 kt. waves around 2 ft. 
.tue...s winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
waves around 2 ft. a chance of showers in the afternoon. 
.tue night...se winds 10 to 15 kt, becoming s 15 to 20 kt after
midnight. gusts up to 25 kt. waves 2 to 4 ft. showers. a chance
of tstms in the evening. 
.wed...sw winds 20 to 25 kt with gusts up to 30 kt. waves 3 to
5 ft. showers.
.wed night...sw winds 15 to 20 kt with gusts up to 30 kt. waves
2 to 4 ft. showers likely with a chance of tstms. 
.thu and thu night...w winds 5 to 10 kt. waves 2 to 4 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 182005
cwfbox
expires:202607190900;;193980

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm edt sat jul 18 2026

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


anz250-190900-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
405 pm edt sat jul 18 2026

...small craft advisory in effect through sunday morning...

.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 6 seconds and sw 3 ft at 4 seconds. a chance of showers. a
chance of tstms this evening, then a slight chance of tstms after
midnight. areas of smoke this evening with vsby 1 to 3 nm. 
.sun...nw winds 10 to 15 kt with gusts up to 25 kt. seas 2 to
4 ft. wave detail: s 3 ft at 6 seconds and w 2 ft at 4 seconds. 
.sun night...nw winds 5 to 10 kt. seas around 2 ft. wave detail:
n 2 ft at 5 seconds and sw 1 foot at 3 seconds. 
.mon...w winds 5 to 10 kt, becoming s in the afternoon. seas
around 2 ft. wave detail: w 1 foot at 4 seconds and se 1 foot at
8 seconds. 
.mon night...s winds 10 to 15 kt with gusts up to 20 kt. seas
around 2 ft. wave detail: s 2 ft at 3 seconds and n 1 foot at
3 seconds. 
.tue...s winds 10 to 15 kt with gusts up to 25 kt. seas 2 to
3 ft. wave detail: se 3 ft at 4 seconds and se 2 ft at 8 seconds.
a chance of showers in the afternoon. 
.tue night...se winds 15 to 20 kt with gusts up to 30 kt. seas
3 to 4 ft. a chance of tstms. a chance of showers in the evening,
then showers after midnight. 
.wed...s winds 15 to 20 kt with gusts up to 35 kt. seas 4 to
6 ft. showers likely. 
.wed night...sw winds 15 to 20 kt with gusts up to 35 kt. seas
4 to 6 ft. showers likely. 
.thu...sw winds 5 to 10 kt with gusts up to 20 kt. seas 3 to
5 ft. a chance of showers. 
.thu night...sw winds 5 to 10 kt. seas 2 to 4 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 182005
cwfbox
expires:202607190900;;193983

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm edt sat jul 18 2026

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


anz254-190900-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
405 pm edt sat jul 18 2026

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

.tonight...sw winds 20 to 25 kt with gusts up to 30 kt. seas 4 to
6 ft. wave detail: se 5 ft at 7 seconds and w 2 ft at 5 seconds.
a chance of tstms. showers likely this evening, then a chance of
showers after midnight. areas of smoke this evening. vsby 1 nm or
less. 
.sun...w 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: sw
5 ft at 6 seconds and ne 2 ft at 8 seconds. 
.sun night...sw winds 5 to 10 kt, becoming nw after midnight.
seas 2 to 4 ft. wave detail: s 3 ft at 8 seconds and sw 1 foot at
4 seconds. 
.mon...nw winds around 5 kt, becoming sw in the afternoon. seas
2 to 3 ft. wave detail: s 3 ft at 8 seconds and sw 1 foot at
4 seconds. 
.mon night...s winds 5 to 10 kt. seas 2 to 3 ft. wave detail: s
3 ft at 8 seconds and sw 1 foot at 3 seconds. 
.tue...se 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 s 2 ft at 7 seconds.
a chance of showers in the afternoon. 
.tue night...se winds 15 to 20 kt, becoming s 20 to 25 kt after
midnight. gusts up to 30 kt. seas 3 to 4 ft, building to 4 to
6 ft after midnight. showers with a chance of tstms. 
.wed...s winds 20 to 25 kt with gusts up to 35 kt. seas 6 to
9 ft. showers with a chance of tstms. 
.wed night...sw winds 25 to 30 kt with gusts up to 35 kt. seas
6 to 9 ft. showers likely. 
.thu...sw winds 15 to 20 kt with gusts up to 25 kt. seas 5 to
8 ft. showers likely. 
.thu night...sw winds 5 to 10 kt. seas 4 to 6 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 182005
cwfbox
expires:202607190900;;193984

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm edt sat jul 18 2026

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


anz255-190900-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
405 pm edt sat jul 18 2026

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

.tonight...sw winds 20 to 25 kt with gusts up to 30 kt. seas 3 to
5 ft, building to 5 to 6 ft after midnight. wave detail: s 5 ft
at 6 seconds and nw 3 ft at 6 seconds, becoming w 6 ft at
7 seconds and se 6 ft at 8 seconds. a chance of tstms. showers
this evening, then a chance of showers after midnight. areas of
smoke this evening. vsby 1 nm or less. 
.sun...w winds 15 to 20 kt with gusts up to 25 kt, diminishing to
5 to 10 kt in the afternoon. seas 4 to 6 ft. wave detail: sw 6 ft
at 7 seconds and se 1 foot at 8 seconds. 
.sun night...sw winds 5 to 10 kt, becoming nw after midnight.
seas 3 to 5 ft. wave detail: n 4 ft at 4 seconds and sw 4 ft at
7 seconds. 
.mon...n winds around 5 kt, becoming s in the afternoon. seas
2 to 4 ft. wave detail: s 4 ft at 8 seconds and sw 2 ft at
4 seconds. 
.mon night...s winds 5 to 10 kt. seas 2 to 3 ft. wave detail: s
3 ft at 8 seconds and sw 1 foot at 2 seconds. 
.tue...se winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas 2 to 3 ft. wave detail: se 3 ft at 4 seconds and s 3 ft at
7 seconds. a chance of showers in the afternoon. 
.tue night...se winds 15 to 20 kt, becoming s 20 to 25 kt after
midnight. gusts up to 30 kt. seas 3 to 5 ft, building to 5 to
8 ft after midnight. showers with a chance of tstms. 
.wed...sw winds 25 to 30 kt with gusts up to 35 kt. seas 7 to
10 ft. showers.
.wed night...sw winds 25 to 30 kt with gusts up to 35 kt. seas
8 to 11 ft. showers likely. 
.thu...sw winds 15 to 20 kt with gusts up to 25 kt. seas 6 to
9 ft. a chance of showers. 
.thu night...s winds 5 to 10 kt. seas 5 to 7 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.

$$