fzus51 kbox 170204
cwfbox
expires:202608171500;;321683

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 pm edt sun aug 16 2026

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


anz235-171500-
rhode island sound-
1003 pm edt sun aug 16 2026

...small craft advisory in effect from 2 am edt monday through
late monday night...

.overnight...s winds 10 to 15 kt. gusts up to 20 kt. seas 2 to
4 ft. wave detail: s 3 ft at 4 seconds and se 1 foot at
9 seconds. a chance of showers. 
.mon...s winds 15 to 20 kt, becoming se 10 to 15 kt in the
afternoon. seas 4 to 6 ft. wave detail: s 4 ft at 5 seconds and
se 1 foot at 9 seconds. patchy fog. showers likely in the
morning. a chance of showers in the afternoon. vsby 1 to 3 nm. 
.mon night...e winds 5 to 10 kt, becoming n after midnight. seas
3 to 5 ft. wave detail: s 5 ft at 9 seconds and se 4 ft at
6 seconds. patchy fog. vsby 1 to 3 nm in the evening. 
.tue...n winds 5 to 10 kt, becoming w in the afternoon. seas 2 to
4 ft. wave detail: s 4 ft at 7 seconds and ne 1 foot at
3 seconds. 
.tue night through wed night...w winds 10 to 15 kt. seas 2 to
3 ft. wave detail: se 3 ft at 8 seconds. 
.thu and thu night...w winds 10 to 15 kt, diminishing to 5 to
10 kt. seas 2 to 3 ft. wave detail: sw 2 ft at 5 seconds and e
1 foot at 6 seconds. a chance of showers. 
.fri and fri night...ne winds 5 to 10 kt, becoming e. 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 170204
cwfbox
expires:202608171500;;321686

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 pm edt sun aug 16 2026

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


anz236-171500-
narragansett bay-
1003 pm edt sun aug 16 2026

.overnight...s winds 10 to 15 kt. gusts up to 20 kt. waves 2 to
3 ft. a chance of showers. 
.mon...se winds 10 to 15 kt with gusts up to 20 kt. waves 2 to
4 ft. patchy fog. showers likely in the morning. a chance of
showers in the afternoon. vsby 1 to 3 nm. 
.mon night...ne winds 5 to 10 kt, becoming n after midnight.
waves 2 to 3 ft. patchy fog. vsby 1 to 3 nm in the evening. 
.tue...n winds 5 to 10 kt, becoming nw in the afternoon. waves
around 2 ft. 
.tue night...s winds around 5 kt, becoming w after midnight.
waves around 2 ft. 
.wed and wed night...w winds 5 to 10 kt. waves around 2 ft. 
.thu and thu night...w winds 5 to 10 kt. waves around 2 ft. a
chance of showers. 
.fri and fri night...ne winds 5 to 10 kt, becoming e. waves
around 2 ft, then 1 foot or less.  

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 170204
cwfbox
expires:202608171500;;321684

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 pm edt sun aug 16 2026

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


anz237-171500-
block island sound-
1003 pm edt sun aug 16 2026

...small craft advisory in effect from 2 am edt monday through
late monday night...

.overnight...s winds 10 to 15 kt. gusts up to 20 kt. seas 2 to
4 ft. wave detail: se 3 ft at 4 seconds and se 1 foot at
9 seconds. a slight chance of showers, then a chance of showers. 
.mon...s winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
5 ft. wave detail: se 4 ft at 5 seconds and se 1 foot at
9 seconds. patchy fog. showers likely in the morning. a chance of
showers in the afternoon. vsby 1 to 3 nm. 
.mon night...ne winds 5 to 10 kt, becoming n after midnight. seas
3 to 4 ft. wave detail: se 3 ft at 6 seconds and se 2 ft at
9 seconds. patchy fog in the evening. 
.tue...n winds 5 to 10 kt, becoming sw in the afternoon. seas
2 to 3 ft. wave detail: se 3 ft at 7 seconds. 
.tue night through wed night...w winds 5 to 10 kt. seas 2 to
3 ft. wave detail: se 2 ft at 7 seconds. 
.thu and thu night...w winds 5 to 10 kt. seas around 2 ft. wave
detail: w 1 foot at 5 seconds and e 1 foot at 6 seconds. a chance
of showers. 
.fri and fri night...e 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 170204
cwfbox
expires:202608171500;;321678

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 pm edt sun aug 16 2026

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


anz255-171500-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
1003 pm edt sun aug 16 2026

...small craft advisory in effect from 2 am edt monday through
late monday night...

.overnight...s winds 10 to 15 kt. seas 2 to 4 ft. wave detail: s
3 ft at 4 seconds and e 1 foot at 4 seconds. a slight chance of
showers. 
.mon...s winds 15 to 20 kt. seas 4 to 6 ft. wave detail: se 4 ft
at 5 seconds and se 1 foot at 8 seconds. patchy fog. showers
likely, mainly in the morning. vsby 1 to 3 nm. 
.mon night...se winds 10 to 15 kt, becoming ne after midnight.
seas 4 to 6 ft. wave detail: se 4 ft at 6 seconds and se 2 ft at
11 seconds. patchy fog. a chance of showers in the evening. vsby
1 to 3 nm. 
.tue...n winds 5 to 10 kt. seas 3 to 5 ft. wave detail: s 5 ft at
8 seconds and n 1 foot at 3 seconds. patchy fog in the morning
with vsby 1 to 3 nm. 
.tue night...nw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: s
3 ft at 7 seconds and se 2 ft at 8 seconds. 
.wed and wed night...sw winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: se 2 ft at 6 seconds and se 1 foot at 10 seconds. 
.thu and thu night...w winds 5 to 10 kt. seas 2 to 3 ft. a chance
of showers. 
.fri and fri night...ne winds 10 to 15 kt, becoming e 5 to 10 kt.
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.

$$