fzus51 kbox 202003
cwfbox
expires:202608210900;;067498

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 pm edt thu aug 20 2026

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


anz235-210900-
rhode island sound-
403 pm edt thu aug 20 2026

.tonight...w winds 5 to 10 kt, becoming n 10 to 15 kt with gusts
up to 20 kt after midnight. seas around 2 ft. wave detail: se
2 ft at 8 seconds and sw 1 foot at 3 seconds. rain.
.fri...ne winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. seas 2 to 3 ft. wave detail: ne 3 ft at 5 seconds and
s 1 foot at 4 seconds. rain.
.fri night...ne winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas around 2 ft. wave detail: ne 2 ft at 5 seconds and
s 1 foot at 5 seconds. rain likely. patchy drizzle after
midnight. 
.sat...ne winds 10 to 15 kt. seas 2 to 3 ft. wave detail: ne 3 ft
at 5 seconds and sw 1 foot at 5 seconds. a chance of rain or
patchy drizzle in the morning, then showers likely in the
afternoon. 
.sat night...e winds 5 to 10 kt. seas 2 to 3 ft. wave detail: s
3 ft at 6 seconds and se 3 ft at 10 seconds. showers.
.sun...s winds 5 to 10 kt. seas 2 to 3 ft. wave detail: s 3 ft at
7 seconds. a chance of showers in the morning. 
.sun night...sw winds 10 to 15 kt. seas 2 to 4 ft.
.mon through tue night...sw winds 15 to 20 kt. seas 2 to 4 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 202003
cwfbox
expires:202608210900;;067501

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 pm edt thu aug 20 2026

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


anz236-210900-
narragansett bay-
403 pm edt thu aug 20 2026

.tonight...nw winds 5 to 10 kt, becoming ne after midnight. waves
around 2 ft. rain.
.fri...ne winds 10 to 15 kt with gusts up to 20 kt. waves around
2 ft. rain.
.fri night...ne winds 10 to 15 kt. waves around 2 ft. rain
likely. patchy drizzle after midnight. 
.sat...ne winds 5 to 10 kt. waves around 2 ft. a chance of rain
or patchy drizzle in the morning, then showers likely in the
afternoon. 
.sat night...ne winds 5 to 10 kt. waves around 2 ft. showers.
.sun...s winds 5 to 10 kt. waves around 2 ft. a chance of showers
in the morning. 
.sun night...sw winds 5 to 10 kt. waves 2 to 3 ft.
.mon through tue night...sw winds 10 to 15 kt with gusts up to
20 kt. waves 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.

$$

fzus51 kbox 202003
cwfbox
expires:202608210900;;067499

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 pm edt thu aug 20 2026

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


anz237-210900-
block island sound-
403 pm edt thu aug 20 2026

.tonight...nw winds 5 to 10 kt, becoming ne 10 to 15 kt with
gusts up to 20 kt after midnight. seas around 2 ft. wave detail:
se 2 ft at 8 seconds and w 1 foot at 3 seconds. rain. isolated
tstms after midnight. 
.fri...ne winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: ne 3 ft at 5 seconds and s 1 foot at
5 seconds. rain.
.fri night...ne winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas 2 to 3 ft. wave detail: e 2 ft at 5 seconds and sw
1 foot at 5 seconds. patchy drizzle. rain likely in the evening,
then a chance of rain after midnight. 
.sat...ne winds 5 to 10 kt. seas 2 to 3 ft. wave detail: e 3 ft
at 5 seconds and sw 1 foot at 5 seconds. a chance of rain or
patchy drizzle in the morning, then showers likely in the
afternoon. 
.sat night...e winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se
3 ft at 6 seconds. showers likely. 
.sun...s winds 5 to 10 kt. seas 2 to 3 ft. wave detail: s 3 ft at
7 seconds. a chance of showers in the morning. 
.sun night...sw winds 5 to 10 kt. seas 2 to 4 ft. 
.mon through tue night...sw winds 10 to 15 kt with gusts up to
20 kt. seas 2 to 4 ft.  

winds and seas higher in and near tstms.

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 202003
cwfbox
expires:202608210900;;067493

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 pm edt thu aug 20 2026

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


anz255-210900-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
403 pm edt thu aug 20 2026

.tonight...sw winds 5 to 10 kt, becoming e 10 to 15 kt after
midnight. seas around 2 ft. wave detail: se 2 ft at 8 seconds and
sw 1 foot at 3 seconds. a chance of rain this evening, then rain
after midnight. 
.fri...ne winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: e 3 ft at 6 seconds and sw 1 foot at
3 seconds. rain.
.fri night...e winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas 2 to 3 ft. wave detail: se 3 ft at 5 seconds. rain.
patchy drizzle after midnight. 
.sat...e winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se 3 ft
at 5 seconds. a chance of rain or patchy drizzle in the morning.
showers likely in the afternoon. 
.sat night and sun...s winds 5 to 10 kt. seas 2 to 4 ft. wave
detail: s 4 ft at 6 seconds and se 4 ft at 11 seconds. showers. a
chance of showers in the afternoon. 
.sun night...sw winds around 10 kt. seas 3 to 5 ft. wave detail:
s 5 ft at 7 seconds and se 4 ft at 12 seconds. a chance of
showers. 
.mon and mon night...w winds 10 to 15 kt with gusts up to 20 kt.
seas 3 to 5 ft. 
.tue and tue night...w winds 10 to 15 kt with gusts up to 20 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.

$$