fzus51 kbox 290806
cwfbox
expires:202603292100;;475176

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt sun mar 29 2026

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


anz235-292100-
rhode island sound-
405 am edt sun mar 29 2026

...small craft advisory in effect from noon edt today through
monday evening...

.today...w winds 10 to 15 kt, becoming sw 15 to 20 kt this
afternoon. gusts up to 25 kt. seas 2 to 3 ft. wave detail: sw
3 ft at 4 seconds and ne 1 foot at 4 seconds. 
.tonight...sw winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
4 ft. wave detail: s 4 ft at 6 seconds. 
.mon...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 sw 2 ft at 4 seconds.
patchy fog in the afternoon with vsby 1 to 3 nm. 
.mon night...sw winds 20 to 25 kt with gusts up to 30 kt,
diminishing to 15 to 20 kt after midnight. seas 5 to 7 ft. wave
detail: sw 7 ft at 8 seconds and w 2 ft at 4 seconds. patchy fog
in the evening. 
.tue...sw winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. gusts up to 30 kt. seas 5 to 7 ft. wave detail: s 7 ft
at 8 seconds and sw 1 foot at 3 seconds. a chance of rain in the
morning. 
.tue night...sw winds 25 to 30 kt with gusts up to 35 kt. seas
6 to 9 ft, building to 9 to 12 ft after midnight. wave detail: s
9 ft at 8 seconds and sw 2 ft at 4 seconds, becoming s 11 ft at
8 seconds and sw 2 ft at 4 seconds. 
.wed...sw winds 25 to 30 kt with gusts up to 35 kt. seas 7 to
10 ft. 
.wed night...w winds 15 to 20 kt with gusts up to 25 kt. seas
5 to 7 ft. rain likely. 
.thu...ne winds 20 to 25 kt. seas 3 to 5 ft. rain likely. 
.thu night...ne winds 20 to 25 kt. seas 3 to 4 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.

$$

fzus51 kbox 290806
cwfbox
expires:202603292100;;475179

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt sun mar 29 2026

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


anz236-292100-
narragansett bay-
405 am edt sun mar 29 2026

...small craft advisory in effect from noon edt today through
monday evening...

.today...w winds 10 to 15 kt, becoming sw 15 to 20 kt this
afternoon. gusts up to 25 kt. waves 1 foot or less, then around
2 ft this afternoon. 
.tonight...sw winds 15 to 20 kt with gusts up to 25 kt. waves
2 to 3 ft. 
.mon...sw winds 15 to 20 kt with gusts up to 30 kt. waves 2 to
4 ft. 
.mon night...sw winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. gusts up to 25 kt. waves 2 to 4 ft. 
.tue...sw winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. gusts up to 25 kt. waves 2 to 4 ft. a chance of rain. 
.tue night...sw winds 20 to 25 kt with gusts up to 30 kt. waves
4 to 6 ft. 
.wed...sw winds 20 to 25 kt with gusts up to 30 kt. waves 4 to
6 ft, except 6 to 9 ft at the bay entrance. a chance of rain. 
.wed night and thu...nw winds 15 to 20 kt, becoming ne. waves
3 to 5 ft. rain likely. 
.thu night...ne winds 10 to 15 kt with gusts up to 20 kt. waves
2 to 3 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.

$$

fzus51 kbox 290806
cwfbox
expires:202603292100;;475177

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt sun mar 29 2026

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


anz237-292100-
block island sound-
405 am edt sun mar 29 2026

...small craft advisory in effect from noon edt today through
monday evening...

.today...w winds 10 to 15 kt, becoming sw 15 to 20 kt this
afternoon. gusts up to 25 kt. seas 2 to 3 ft. wave detail: sw
3 ft at 4 seconds and ne 1 foot at 4 seconds. 
.tonight...sw 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 s 3 ft at 7 seconds. 
.mon...sw winds 15 to 20 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 4 seconds.
patchy fog in the afternoon with vsby 1 to 3 nm. 
.mon night...sw winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. gusts up to 25 kt. seas 3 to 5 ft. wave detail: s
5 ft at 8 seconds and w 2 ft at 4 seconds. patchy fog in the
evening with vsby 1 to 3 nm. 
.tue...sw winds 15 to 20 kt with gusts up to 30 kt. seas 4 to
6 ft. wave detail: s 5 ft at 8 seconds and sw 2 ft at 4 seconds.
a chance of rain in the morning. 
.tue night...sw winds 20 to 25 kt with gusts up to 35 kt. seas
5 to 8 ft, building to 7 to 10 ft after midnight. wave detail: s
7 ft at 8 seconds and w 2 ft at 5 seconds, becoming s 8 ft at
8 seconds and w 3 ft at 5 seconds. 
.wed...sw winds 20 to 25 kt with gusts up to 35 kt. seas 6 to
9 ft. a chance of rain. 
.wed night...nw winds 15 to 20 kt with gusts up to 25 kt. seas
4 to 6 ft. rain likely. 
.thu...ne winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. rain likely. 
.thu night...ne winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 4 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.

$$

fzus51 kbox 290806
cwfbox
expires:202603292100;;475171

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt sun mar 29 2026

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


anz255-292100-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
405 am edt sun mar 29 2026

...small craft advisory in effect from noon edt today through
monday evening...

.today...w winds 10 to 15 kt, becoming sw 15 to 20 kt with gusts
up to 25 kt this afternoon. seas 2 to 3 ft. wave detail: sw 3 ft
at 6 seconds and ne 1 foot at 5 seconds. 
.tonight...sw winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. wave detail: sw 5 ft at 6 seconds and ne 1 foot at
6 seconds. 
.mon...sw winds 20 to 25 kt with gusts up to 30 kt. seas 5 to
7 ft, building to 6 to 9 ft in the afternoon. wave detail: sw
7 ft at 7 seconds and sw 1 foot at 4 seconds, becoming sw 9 ft at
8 seconds and sw 2 ft at 4 seconds. 
.mon night...sw winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. gusts up to 30 kt. seas 6 to 9 ft, subsiding to
5 to 7 ft after midnight. wave detail: sw 9 ft at 8 seconds and
sw 1 foot at 4 seconds, becoming sw 7 ft at 8 seconds and sw
1 foot at 4 seconds. patchy fog in the evening with vsby 1 to
3 nm. 
.tue...sw winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. gusts up to 30 kt. seas 5 to 7 ft, building to 6 to
9 ft in the afternoon. wave detail: sw 7 ft at 8 seconds and sw
1 foot at 3 seconds, becoming sw 8 ft at 8 seconds and sw 1 foot
at 4 seconds. 
.tue night...sw winds 25 to 30 kt, increasing to 30 to 35 kt
after midnight. seas 8 to 11 ft, building to 10 to 14 ft after
midnight. wave detail: sw 11 ft at 8 seconds and sw 2 ft at
4 seconds, becoming sw 13 ft at 8 seconds and sw 2 ft at
4 seconds. 
.wed...sw winds 25 to 30 kt with gusts up to 35 kt. seas 9 to
13 ft. 
.wed night...w winds 20 to 25 kt with gusts up to 30 kt. seas
6 to 9 ft. rain likely. 
.thu...ne winds 20 to 25 kt. seas 4 to 6 ft. rain likely. 
.thu night...ne winds 20 to 25 kt. seas 4 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.

$$