fzus51 kbox 130806
cwfbox
expires:202603132100;;590176

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt fri mar 13 2026

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


anz235-132100-
rhode island sound-
405 am edt fri mar 13 2026

...small craft advisory in effect until 8 am edt this morning...
...gale watch in effect from saturday morning through saturday
afternoon...

.today...w winds 15 to 20 kt, becoming sw 10 to 15 kt this
afternoon. gusts up to 25 kt. seas 3 to 5 ft. wave detail: s 5 ft
at 9 seconds and w 3 ft at 5 seconds. 
.tonight...s winds 20 to 25 kt, becoming sw 25 to 30 kt after
midnight. seas 4 to 6 ft, building to 6 to 9 ft after midnight.
wave detail: s 5 ft at 5 seconds and s 3 ft at 9 seconds,
becoming s 9 ft at 8 seconds and s 2 ft at 5 seconds. a chance of
rain. 
.sat...w winds 25 to 30 kt with gusts up to 35 kt. seas 6 to
9 ft. wave detail: sw 9 ft at 9 seconds and w 4 ft at 6 seconds. 
.sat night...w winds 20 to 25 kt with gusts up to 30 kt, becoming
nw 10 to 15 kt with gusts up to 20 kt after midnight. seas 4 to
6 ft, subsiding to 2 to 4 ft after midnight. wave detail: sw 6 ft
at 9 seconds and w 4 ft at 5 seconds, becoming sw 4 ft at
8 seconds and nw 2 ft at 4 seconds. 
.sun...ne winds 5 to 10 kt, becoming e 10 to 15 kt in the
afternoon. seas 2 to 3 ft. wave detail: sw 3 ft at 7 seconds and
e 2 ft at 3 seconds. 
.sun night...se winds 15 to 20 kt, increasing to 25 to 30 kt
after midnight. seas 2 to 4 ft, building to 4 to 6 ft after
midnight. wave detail: s 4 ft at 6 seconds and se 1 foot at
10 seconds, becoming se 6 ft at 6 seconds and se 1 foot at
10 seconds. a chance of rain after midnight. 
.mon...se winds 30 to 35 kt with gusts up to 45 kt. seas 9 to
12 ft. rain.
.mon night...s winds 35 to 40 kt with gusts up to 50 kt. seas
11 to 15 ft. rain.
.tue...sw winds 25 to 35 kt with gusts up to 45 kt. seas 9 to
12 ft. rain likely. 
.tue night...w winds 25 to 30 kt. seas 6 to 9 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 130806
cwfbox
expires:202603132100;;590179

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt fri mar 13 2026

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


anz236-132100-
narragansett bay-
405 am edt fri mar 13 2026

.today...w winds 10 to 15 kt, becoming sw this afternoon. gusts
up to 20 kt. waves 2 to 3 ft. 
.tonight...s winds 15 to 20 kt, becoming sw 20 to 25 kt after
midnight. gusts up to 30 kt. waves 3 to 5 ft. a chance of rain. 
.sat...w winds 20 to 25 kt with gusts up to 35 kt. waves 4 to
6 ft. 
.sat night...w winds 15 to 20 kt with gusts up to 25 kt, becoming
nw 10 to 15 kt after midnight. waves 2 to 3 ft. 
.sun...n winds around 5 kt, becoming se 10 to 15 kt in the
afternoon. waves around 2 ft. 
.sun night...se winds 10 to 15 kt with gusts up to 20 kt,
increasing to 20 to 25 kt with gusts up to 30 kt after midnight.
waves 2 to 3 ft, building to 3 to 5 ft after midnight. a chance
of rain after midnight. 
.mon...se winds 25 to 30 kt with gusts up to 40 kt. waves 5 to
7 ft. rain.
.mon night...s winds 30 to 40 kt with gusts up to 50 kt. waves
6 to 9 ft, except 9 to 12 ft at the bay entrance. rain.
.tue...sw winds 25 to 30 kt with gusts up to 40 kt. waves 5 to
8 ft, except 8 to 11 ft at the bay entrance. rain likely. 
.tue night...w winds 15 to 20 kt with gusts up to 25 kt. waves
3 to 5 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 130806
cwfbox
expires:202603132100;;590177

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt fri mar 13 2026

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


anz237-132100-
block island sound-
405 am edt fri mar 13 2026

...small craft advisory in effect until 8 am edt this morning...
...gale watch in effect from saturday morning through saturday
afternoon...

.today...w winds 10 to 15 kt, becoming sw this afternoon. gusts
up to 20 kt. seas 2 to 4 ft. wave detail: w 3 ft at 4 seconds and
s 3 ft at 8 seconds. 
.tonight...s winds 15 to 20 kt, becoming sw 20 to 25 kt after
midnight. gusts up to 30 kt. seas 3 to 5 ft, building to 5 to
7 ft after midnight. wave detail: s 3 ft at 4 seconds and s 2 ft
at 9 seconds, becoming s 6 ft at 8 seconds and s 3 ft at
5 seconds. a chance of rain in the evening. 
.sat...w winds 25 to 30 kt with gusts up to 35 kt. seas 5 to
8 ft. wave detail: s 6 ft at 9 seconds and w 5 ft at 5 seconds. 
.sat night...w winds 15 to 20 kt with gusts up to 25 kt, becoming
nw 10 to 15 kt after midnight. seas 3 to 5 ft. wave detail: w
4 ft at 5 seconds and s 4 ft at 9 seconds. 
.sun...ne winds 5 to 10 kt, becoming e 10 to 15 kt with gusts up
to 20 kt in the afternoon. seas around 2 ft. wave detail: e 2 ft
at 3 seconds and s 2 ft at 7 seconds. 
.sun night...se winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. gusts up to 30 kt. seas 2 to 3 ft, building to
4 to 6 ft after midnight. wave detail: se 3 ft at 5 seconds and
se 1 foot at 10 seconds, becoming se 6 ft at 6 seconds. a chance
of rain after midnight. 
.mon...se winds 25 to 30 kt with gusts up to 45 kt. seas 8 to
11 ft. rain.
.mon night...s winds 30 to 35 kt with gusts up to 50 kt. seas
9 to 13 ft. rain.
.tue...sw winds 25 to 30 kt with gusts up to 40 kt. seas 8 to
11 ft. rain likely. 
.tue night...w winds 20 to 25 kt with gusts up to 30 kt. seas
5 to 8 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 130806
cwfbox
expires:202603132100;;590171

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt fri mar 13 2026

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


anz255-132100-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
405 am edt fri mar 13 2026

...small craft advisory in effect until 4 pm edt this afternoon...
...gale watch in effect from late tonight through saturday
afternoon...

.today...nw winds 20 to 25 kt, becoming sw 10 to 15 kt this
afternoon. seas 5 to 7 ft, subsiding to 3 to 5 ft this afternoon.
wave detail: w 6 ft at 7 seconds and s 4 ft at 9 seconds,
becoming w 4 ft at 6 seconds and s 3 ft at 9 seconds. 
.tonight...s winds 15 to 20 kt with gusts up to 25 kt, becoming
sw 25 to 30 kt with gusts up to 35 kt after midnight. seas 4 to
6 ft, building to 7 to 10 ft after midnight. wave detail: sw 4 ft
at 6 seconds and s 3 ft at 9 seconds, becoming s 10 ft at
6 seconds and se 1 foot at 10 seconds. a chance of rain. 
.sat...w winds 30 to 35 kt. seas 9 to 13 ft. wave detail: sw
13 ft at 9 seconds and w 2 ft at 5 seconds. 
.sat night...w winds 25 to 30 kt, becoming nw 15 to 20 kt after
midnight. seas 6 to 9 ft, subsiding to 4 to 6 ft after midnight.
wave detail: sw 9 ft at 9 seconds and w 2 ft at 5 seconds,
becoming sw 6 ft at 8 seconds and nw 2 ft at 5 seconds. 
.sun...n winds 10 to 15 kt, becoming e in the afternoon. seas
2 to 4 ft. wave detail: sw 4 ft at 8 seconds and n 2 ft at
4 seconds. 
.sun night...se winds 20 to 25 kt, increasing to 25 to 30 kt
after midnight. seas 2 to 4 ft, building to 4 to 6 ft after
midnight. wave detail: s 4 ft at 5 seconds and se 1 foot at
10 seconds, becoming se 6 ft at 6 seconds and se 1 foot at
10 seconds. 
.mon...se winds 30 to 40 kt. seas 9 to 13 ft. rain.
.mon night...s winds 30 to 40 kt with gusts up to 50 kt. seas
11 to 15 ft. rain.
.tue...sw winds 25 to 35 kt with gusts up to 45 kt. seas 10 to
14 ft. rain.
.tue night...w winds 25 to 30 kt with gusts up to 35 kt. seas
8 to 11 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.

$$