fzus51 kbox 181105
cwfbox
expires:202603190000;;896351

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
704 am edt wed mar 18 2026

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


anz235-190000-
rhode island sound-
704 am edt wed mar 18 2026

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

.today...nw winds 10 to 15 kt with gusts up to 20 kt, becoming sw
5 to 10 kt this afternoon. seas 5 to 7 ft, subsiding to 3 to 5 ft
this afternoon. wave detail: s 7 ft at 10 seconds and w 2 ft at
5 seconds, becoming s 5 ft at 10 seconds and w 1 foot at
5 seconds.
.tonight...s winds 5 to 10 kt. seas 3 to 5 ft. wave detail: s
5 ft at 10 seconds. 
.thu...se winds 5 to 10 kt. seas 3 to 4 ft. wave detail: s 4 ft
at 9 seconds. 
.thu night...s winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se
3 ft at 9 seconds. 
.fri...sw winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. seas 2 to 3 ft. wave detail: se 3 ft at 8 seconds and
sw 2 ft at 3 seconds. 
.fri night...sw winds 10 to 15 kt. seas 2 to 3 ft. wave detail: s
3 ft at 4 seconds and se 3 ft at 9 seconds. a chance of rain
after midnight. 
.sat...s winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
4 ft. a chance of rain. 
.sat night...sw winds 15 to 20 kt. seas 3 to 5 ft. 
.sun...sw winds 15 to 20 kt. seas 2 to 3 ft. a chance of rain. 
.sun night...nw winds 20 to 25 kt. seas 2 to 4 ft. a chance of
rain and snow.  

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 181105
cwfbox
expires:202603190000;;896354

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
704 am edt wed mar 18 2026

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


anz236-190000-
narragansett bay-
704 am edt wed mar 18 2026

.today...nw winds 5 to 10 kt, becoming s this afternoon. waves
2 to 3 ft. 
.tonight...s winds 5 to 10 kt, diminishing to around 5 kt after
midnight. waves 2 to 3 ft. 
.thu...se winds around 5 kt, increasing to 5 to 10 kt in the
afternoon. waves 2 to 3 ft. 
.thu night...s winds 5 to 10 kt. waves around 2 ft.
.fri...sw winds 5 to 10 kt. waves around 2 ft. 
.fri night...sw winds around 10 kt. waves around 2 ft. a chance
of rain after midnight. 
.sat...s winds 10 to 15 kt with gusts up to 20 kt. waves 2 to
3 ft. a chance of rain. 
.sat night...sw winds 10 to 15 kt with gusts up to 20 kt. waves
2 to 3 ft. 
.sun...sw winds 10 to 15 kt with gusts up to 20 kt. waves around
2 ft. a chance of rain. 
.sun night...nw winds 15 to 20 kt with gusts up to 25 kt. waves
2 to 3 ft. a chance of rain and snow.  

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 181105
cwfbox
expires:202603190000;;896352

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
704 am edt wed mar 18 2026

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


anz237-190000-
block island sound-
704 am edt wed mar 18 2026

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

.today...nw winds 5 to 10 kt, becoming sw this afternoon. seas
4 to 6 ft. wave detail: s 6 ft at 11 seconds and w 2 ft at
4 seconds. 
.tonight...s winds 5 to 10 kt. seas 3 to 5 ft. wave detail: s
5 ft at 10 seconds. 
.thu...se winds 5 to 10 kt. seas 3 to 4 ft. wave detail: se 4 ft
at 9 seconds. 
.thu night...s winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se
3 ft at 9 seconds. 
.fri...sw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se 3 ft
at 9 seconds. 
.fri night...sw winds 10 to 15 kt. seas 2 to 3 ft. wave detail:
se 3 ft at 8 seconds and sw 2 ft at 3 seconds. a chance of rain
after midnight. 
.sat...s winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
4 ft. a chance of rain. 
.sat night...sw winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 4 ft. 
.sun...sw winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. a chance of rain. 
.sun night...nw winds 20 to 25 kt. seas 2 to 4 ft. a chance of
rain and snow.  

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 181105
cwfbox
expires:202603190000;;896346

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
704 am edt wed mar 18 2026

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


anz255-190000-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
704 am edt wed mar 18 2026

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

.today...nw winds 15 to 20 kt, diminishing to 5 to 10 kt this
afternoon. seas 5 to 8 ft. wave detail: s 8 ft at 10 seconds and
w 3 ft at 5 seconds. 
.tonight...se winds around 5 kt. seas 4 to 6 ft. wave detail: s
5 ft at 10 seconds and w 1 foot at 6 seconds. 
.thu...e winds 5 to 10 kt. seas 3 to 4 ft. wave detail: se 4 ft
at 9 seconds. 
.thu night...se winds around 5 kt, becoming s after midnight.
seas 2 to 4 ft. wave detail: se 3 ft at 9 seconds. 
.fri and fri night...s winds 10 to 15 kt. seas 2 to 4 ft. wave
detail: se 4 ft at 9 seconds and sw 3 ft at 4 seconds. 
.sat...s winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. wave detail: s 5 ft at 5 seconds and e 4 ft at 9 seconds. a
chance of rain. 
.sat night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. 
.sun and sun night...sw winds 15 to 20 kt, becoming nw 25 to
30 kt. seas 3 to 5 ft. a chance of rain.  

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.

$$