fzus51 kbox 182303
cwfbox
expires:202609191200;;679573

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt fri sep 18 2026

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


anz235-191200-
rhode island sound-
703 pm edt fri sep 18 2026

.tonight...n winds 10 to 15 kt, becoming ne 15 to 20 kt after
midnight. seas 2 to 3 ft. wave detail: ne 3 ft at 8 seconds and
sw 2 ft at 5 seconds. 
.sat...ne winds 10 to 15 kt with gusts up to 20 kt, diminishing
to 5 to 10 kt in the afternoon. seas 2 to 3 ft. wave detail: ne
3 ft at 5 seconds and sw 1 foot at 5 seconds. 
.sat night...e winds 5 to 10 kt. seas around 2 ft. wave detail: e
2 ft at 6 seconds and w 1 foot at 5 seconds. 
.sun...se winds 10 to 15 kt. seas around 2 ft. wave detail: se
2 ft at 5 seconds and se 2 ft at 10 seconds. a chance of showers
in the afternoon. 
.sun night...se winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas around 2 ft. wave detail: se 2 ft at 4 seconds and
se 2 ft at 10 seconds. showers.
.mon...ne winds 20 to 25 kt. seas 2 to 4 ft. wave detail: ne 4 ft
at 5 seconds and s 2 ft at 5 seconds. showers likely in the
morning. 
.mon night...ne winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. seas 3 to 5 ft. 
.tue...ne winds 20 to 25 kt with gusts up to 30 kt. seas 4 to
6 ft. 
.tue night through wed night...ne winds 25 to 30 kt with gusts up
to 40 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 182303
cwfbox
expires:202609191200;;679576

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt fri sep 18 2026

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


anz236-191200-
narragansett bay-
703 pm edt fri sep 18 2026

.tonight...n winds 10 to 15 kt with gusts up to 20 kt. waves 2 to
3 ft. 
.sat...ne winds 10 to 15 kt with gusts up to 20 kt, diminishing
to 5 to 10 kt in the afternoon. waves 2 to 3 ft. 
.sat night...e winds 5 to 10 kt. waves 1 foot or less.
.sun...se winds 5 to 10 kt. waves 1 foot or less, then around
2 ft in the afternoon. showers likely in the afternoon. 
.sun night...se winds 5 to 10 kt, becoming e 10 to 15 kt with
gusts up to 20 kt after midnight. waves around 2 ft. showers.
.mon...ne winds 15 to 20 kt with gusts up to 25 kt. waves 2 to
3 ft. a chance of showers in the morning. 
.mon night...ne winds 10 to 15 kt with gusts up to 20 kt. waves
2 to 3 ft. 
.tue through wed night...ne winds 20 to 25 kt with gusts up to
35 kt. waves 2 to 3 ft, except 4 to 6 ft at the bay entrance.  

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 182303
cwfbox
expires:202609191200;;679574

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 pm edt fri sep 18 2026

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


anz237-191200-
block island sound-
703 pm edt fri sep 18 2026

.tonight...n winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: ne 3 ft at 6 seconds and sw 1 foot at
5 seconds. 
.sat...ne winds 10 to 15 kt with gusts up to 20 kt, becoming e
5 to 10 kt in the afternoon. seas 2 to 3 ft. wave detail: ne 3 ft
at 5 seconds and sw 1 foot at 5 seconds. 
.sat night...se winds 5 to 10 kt. seas around 2 ft. wave detail:
e 2 ft at 7 seconds and s 1 foot at 4 seconds. 
.sun...se winds 10 to 15 kt. seas around 2 ft. wave detail: se
2 ft at 5 seconds. showers likely in the afternoon. 
.sun night...se winds around 10 kt, becoming e with gusts up to
20 kt after midnight. seas around 2 ft. wave detail: s 2 ft at
4 seconds and se 2 ft at 7 seconds. showers.
.mon...ne winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
4 ft. wave detail: ne 4 ft at 5 seconds and s 1 foot at
5 seconds. a chance of showers in the morning. 
.mon night...ne winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. 
.tue and tue night...ne winds 20 to 25 kt with gusts up to 35 kt.
seas 5 to 8 ft. 
.wed...ne winds 25 to 30 kt with gusts up to 40 kt. seas 6 to
9 ft. 
.wed night...ne winds 25 to 30 kt with gusts up to 40 kt. seas
5 to 8 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 182003
cwfbox
expires:202609190900;;672698

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
402 pm edt fri sep 18 2026

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


anz255-190900-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
402 pm edt fri sep 18 2026

...small craft advisory in effect from 8 pm edt this evening
through saturday morning...

.tonight...ne winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. gusts up to 25 kt. seas 2 to 4 ft. wave detail: ne 4 ft
at 7 seconds and sw 2 ft at 5 seconds. 
.sat...ne winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. gusts up to 25 kt. seas 2 to 4 ft. wave detail: ne
4 ft at 5 seconds and sw 1 foot at 5 seconds. 
.sat night...e winds 5 to 10 kt. seas 2 to 3 ft. wave detail: ne
3 ft at 7 seconds and nw 1 foot at 5 seconds. 
.sun...se winds 10 to 15 kt. seas 2 to 3 ft. wave detail: se 2 ft
at 6 seconds. a chance of showers in the afternoon. 
.sun night...se winds 10 to 15 kt. seas around 2 ft. wave detail:
se 2 ft at 5 seconds. showers.
.mon...ne winds 20 to 25 kt. seas 2 to 4 ft. wave detail: se 4 ft
at 5 seconds. a chance of showers. 
.mon night...ne winds 20 to 25 kt. seas 3 to 5 ft. a chance of
showers after midnight. 
.tue...ne winds 20 to 25 kt with gusts up to 30 kt. seas 5 to
7 ft. 
.tue night...ne winds 25 to 30 kt with gusts up to 35 kt. seas
6 to 9 ft. 
.wed...ne winds 25 to 30 kt with gusts up to 35 kt. seas 7 to
10 ft. 
.wed night...ne winds 25 to 35 kt with gusts up to 40 kt. seas
7 to 10 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.

$$