fzus51 kbox 210804
cwfbox
expires:202607212100;;337684

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt tue jul 21 2026

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


anz230-212100-
boston harbor-
404 am edt tue jul 21 2026

.today...s winds 10 to 15 kt. gusts up to 20 kt this afternoon.
waves 2 to 3 ft. a slight chance of showers this afternoon. 
.tonight...s winds 15 to 20 kt with gusts up to 25 kt. waves 2 to
3 ft. showers. a chance of tstms in the evening. 
.wed...sw winds 10 to 15 kt with gusts up to 20 kt. waves around
2 ft. a chance of showers in the morning, then showers likely in
the afternoon. 
.wed night...w winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. waves around 2 ft in
the evening, then 1 foot or less. a chance of showers in the
evening. 
.thu...nw winds 5 to 10 kt, becoming s in the afternoon. waves
1 foot or less. 
.thu night...s winds 5 to 10 kt, becoming w after midnight. waves
1 foot or less. 
.fri through sat night...e winds 5 to 10 kt. waves 1 foot or
less.  

winds and waves 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 210804
cwfbox
expires:202607212100;;337685

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
404 am edt tue jul 21 2026

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


anz236-212100-
narragansett bay-
404 am edt tue jul 21 2026

.today...s winds 10 to 15 kt, becoming se 15 to 20 kt this
afternoon. gusts up to 25 kt. waves 2 to 3 ft. a chance of
showers with isolated tstms this afternoon. 
.tonight...s winds 15 to 20 kt with gusts up to 30 kt. waves 3 to
4 ft. showers with a chance of tstms in the evening, then showers
likely after midnight. 
.wed...sw winds 15 to 20 kt with gusts up to 30 kt. waves 3 to
5 ft. a chance of showers. 
.wed night...sw winds 10 to 15 kt with gusts up to 25 kt,
becoming nw 5 to 10 kt after midnight. waves 2 to 4 ft. a chance
of showers in the evening. 
.thu...nw winds 5 to 10 kt, becoming w in the afternoon. waves
2 to 3 ft. 
.thu night...w winds 5 to 10 kt, becoming n after midnight. waves
2 to 3 ft. 
.fri through sat night...ne winds 5 to 10 kt. waves 2 to 3 ft.  

winds and waves 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.

$$