fzus51 kbox 211404
cwfbox
expires:202608220300;;110130

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt fri aug 21 2026

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


anz235-220300-
rhode island sound-
1004 am edt fri aug 21 2026

.this afternoon...ne winds 15 to 20 kt with gusts up to 25 kt.
seas around 3 ft. wave detail: ne 3 ft at 4 seconds and se 2 ft
at 8 seconds. showers likely. 
.tonight...ne winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: ne 3 ft at 4 seconds and s 1 foot at
7 seconds. patchy fog. a chance of showers. 
.sat...n winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. seas 2 to 3 ft. wave detail: ne 2 ft at 4 seconds and
s 1 foot at 7 seconds. patchy fog. a chance of showers in the
afternoon. 
.sat night...ne winds 5 to 10 kt, becoming e after midnight. seas
around 2 ft. wave detail: se 2 ft at 8 seconds and ne 1 foot at
3 seconds. showers. patchy fog in the evening. 
.sun...s winds around 10 kt. seas 2 to 3 ft. wave detail: se 3 ft
at 6 seconds and se 1 foot at 13 seconds. showers likely, mainly
in the morning. 
.sun night...sw winds around 10 kt. seas 3 to 5 ft. wave detail:
sw 3 ft at 6 seconds and ne 2 ft at 7 seconds. 
.mon...sw winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
5 ft. 
.mon night through tue night...w 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 211404
cwfbox
expires:202608220300;;110133

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt fri aug 21 2026

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


anz236-220300-
narragansett bay-
1004 am edt fri aug 21 2026

.this afternoon...ne winds 10 to 15 kt with gusts up to 25 kt.
waves 2 to 3 ft. showers likely this morning. 
.tonight...n winds 10 to 15 kt. gusts up to 20 kt in the evening.
waves around 2 ft. a chance of showers. 
.sat...n winds 5 to 10 kt. waves around 2 ft. patchy fog in the
afternoon. a chance of showers in the afternoon. 
.sat night...ne winds 5 to 10 kt. waves around 2 ft. a chance of
showers in the evening, then showers after midnight. patchy fog
in the evening. 
.sun...se winds 5 to 10 kt, becoming s in the afternoon. waves
around 2 ft. showers likely, mainly in the morning. 
.sun night...sw winds 5 to 10 kt. waves 2 to 3 ft.
.mon through tue night...w 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 211404
cwfbox
expires:202608220300;;110131

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt fri aug 21 2026

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


anz237-220300-
block island sound-
1004 am edt fri aug 21 2026

.this afternoon...ne winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. wave detail: ne 3 ft at 4 seconds and sw 1 foot
at 5 seconds. showers likely this morning. 
.tonight...n 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
7 seconds. 
.sat...n winds 5 to 10 kt. seas 2 to 3 ft. wave detail: ne 2 ft
at 5 seconds and s 1 foot at 5 seconds. patchy fog. a chance of
showers in the afternoon. 
.sat night...e winds 5 to 10 kt. seas around 2 ft. wave detail: s
1 foot at 5 seconds and ne 1 foot at 5 seconds. showers. patchy
fog in the evening. 
.sun...s winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se 2 ft
at 8 seconds and s 1 foot at 4 seconds. showers likely, mainly in
the morning. 
.sun night...sw winds 5 to 10 kt. seas 3 to 5 ft. wave detail: s
3 ft at 6 seconds and e 1 foot at 3 seconds. 
.mon...w winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
5 ft. 
.mon night through tue night...w winds 10 to 15 kt with gusts up
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 211404
cwfbox
expires:202608220300;;110125

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt fri aug 21 2026

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


anz255-220300-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
1004 am edt fri aug 21 2026

.this afternoon...ne winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 3 ft. wave detail: ne 3 ft at 5 seconds and se 2 ft at
8 seconds. patchy fog. showers. isolated tstms. vsby 1 to 3 nm. 
.tonight...ne winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
3 ft. wave detail: ne 3 ft at 5 seconds and sw 1 foot at
5 seconds. patchy fog. a chance of showers. vsby 1 to 3 nm in the
evening. 
.sat...ne winds 10 to 15 kt, becoming sw 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. patchy fog. 
.sat night...s winds 5 to 10 kt. seas 2 to 3 ft. wave detail: ne
2 ft at 5 seconds and sw 1 foot at 4 seconds. showers. patchy fog
in the evening with vsby 1 to 3 nm. 
.sun...s winds 10 to 15 kt. seas 2 to 3 ft. wave detail: s 3 ft
at 6 seconds and e 1 foot at 5 seconds. showers, mainly in the
morning. 
.sun night...sw winds around 10 kt. seas 4 to 6 ft. wave detail:
s 4 ft at 7 seconds and ne 1 foot at 4 seconds. a chance of
showers. 
.mon...sw winds 10 to 15 kt with gusts up to 20 kt. seas 4 to
6 ft. a chance of showers. 
.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.  

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.

$$