fzus51 kbox 172303
cwfbox
expires:202608181200;;904106

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt mon aug 17 2026

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


anz235-181200-
rhode island sound-
703 pm edt mon aug 17 2026

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

.tonight...e winds 5 to 10 kt, becoming n after midnight. seas
2 to 4 ft. wave detail: s 4 ft at 6 seconds. patchy fog. a chance
of showers this evening. vsby 1 to 3 nm, decreasing to 1 nm or
less after midnight. 
.tue...n winds 5 to 10 kt, becoming nw in the afternoon. seas
2 to 3 ft. wave detail: se 3 ft at 7 seconds. patchy fog in the
morning with vsby 1 nm or less. 
.tue night...sw winds 5 to 10 kt, becoming w after midnight. seas
2 to 3 ft. wave detail: s 3 ft at 7 seconds and se 2 ft at
8 seconds. patchy fog after midnight with vsby 1 nm or less. 
.wed...w winds around 5 kt, becoming sw 10 to 15 kt in the
afternoon. seas 2 to 3 ft. wave detail: s 2 ft at 7 seconds and
se 2 ft at 8 seconds. patchy fog in the morning with vsby 1 nm or
less. 
.wed night...sw winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. seas 2 to 3 ft. wave detail: sw 2 ft at 4 seconds
and se 2 ft at 8 seconds. 
.thu and thu night...nw winds 5 to 10 kt. seas around 2 ft. wave
detail: s 2 ft at 7 seconds. a chance of showers. 
.fri through sat night...e winds 10 to 15 kt. seas 2 to 3 ft. a
chance of showers.  

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 172303
cwfbox
expires:202608181200;;904109

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt mon aug 17 2026

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


anz236-181200-
narragansett bay-
703 pm edt mon aug 17 2026

.tonight...ne winds 5 to 10 kt, becoming n after midnight. waves
2 to 3 ft. patchy fog. a chance of showers this evening. vsby
1 to 3 nm, decreasing to 1 nm or less after midnight. 
.tue...n winds around 5 kt. waves around 2 ft. patchy fog in the
morning with vsby 1 nm or less. 
.tue night...s winds around 5 kt, becoming nw around 5 kt after
midnight. waves around 2 ft. patchy fog after midnight with vsby
1 to 3 nm. 
.wed...w winds around 5 kt, becoming sw in the afternoon. waves
around 2 ft. patchy fog in the morning. 
.wed night...sw winds 5 to 10 kt. waves around 2 ft. 
.thu and thu night...nw winds 5 to 10 kt. waves around 2 ft. a
chance of showers. 
.fri through sat night...e winds 5 to 10 kt. waves around 2 ft. a
chance of showers.  

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 172303
cwfbox
expires:202608181200;;904107

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt mon aug 17 2026

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


anz237-181200-
block island sound-
703 pm edt mon aug 17 2026

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

.tonight...ne winds 5 to 10 kt, becoming n after midnight. seas
2 to 4 ft. wave detail: se 3 ft at 6 seconds. patchy fog. a
slight chance of showers this evening. vsby 1 to 3 nm, decreasing
to 1 nm or less after midnight. 
.tue...n winds around 5 kt, becoming sw in the afternoon. seas
2 to 3 ft. wave detail: s 3 ft at 7 seconds and se 2 ft at
8 seconds. patchy fog in the morning with vsby 1 nm or less. 
.tue night...sw winds around 5 kt, becoming nw after midnight.
seas 2 to 3 ft. wave detail: s 3 ft at 7 seconds and se 2 ft at
8 seconds. patchy fog after midnight. 
.wed...nw winds around 5 kt, becoming sw in the afternoon. seas
2 to 3 ft. wave detail: s 2 ft at 7 seconds and se 2 ft at
8 seconds. patchy fog in the morning. 
.wed night...sw winds 5 to 10 kt. seas around 2 ft. wave detail:
sw 2 ft at 5 seconds and se 2 ft at 8 seconds. 
.thu and thu night...n winds 5 to 10 kt. seas around 2 ft. wave
detail: sw 2 ft at 6 seconds and se 2 ft at 8 seconds. a chance
of showers. 
.fri through sat night...e winds 5 to 10 kt. seas 2 to 3 ft. a
chance of showers.  

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 172303
cwfbox
expires:202608181200;;904101

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt mon aug 17 2026

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


anz255-181200-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
703 pm edt mon aug 17 2026

...small craft advisory in effect until 2 am edt tuesday...

.tonight...se winds 10 to 15 kt, becoming ne 5 to 10 kt after
midnight. seas 3 to 5 ft. wave detail: s 4 ft at 7 seconds and se
1 foot at 9 seconds. patchy fog. a chance of showers this
evening. vsby 1 nm or less. 
.tue...n winds 5 to 10 kt. seas 3 to 4 ft. wave detail: s 4 ft at
7 seconds and e 2 ft at 8 seconds. patchy fog in the morning with
vsby 1 nm or less. 
.tue night...nw winds around 5 kt. seas 2 to 4 ft. wave detail: s
3 ft at 7 seconds and se 3 ft at 8 seconds. patchy fog. vsby 1 nm
or less. 
.wed...sw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se 2 ft
at 7 seconds. patchy fog in the morning with vsby 1 nm or less. 
.wed night and thu...sw winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: sw 2 ft at 6 seconds and e 2 ft at 7 seconds. 
.thu night...sw winds 5 to 10 kt, becoming nw after midnight.
seas 2 to 3 ft. wave detail: se 2 ft at 8 seconds and sw 1 foot
at 5 seconds. a chance of showers and tstms. 
.fri through sat night...se winds 10 to 15 kt. seas 2 to 3 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.

$$