fzus51 kbox 210804
cwfbox
expires:202604212100;;734789

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

.today...ne winds 5 to 10 kt, becoming se 10 to 15 kt this
afternoon. waves 1 foot or less. 
.tonight...s winds 10 to 15 kt. waves around 2 ft. 
.wed...s winds around 10 kt. waves around 2 ft. a chance of rain.
.wed night...s winds 5 to 10 kt. waves 1 foot or less. a chance
of rain in the evening. 
.thu...w winds 5 to 10 kt, becoming nw in the afternoon. waves
1 foot or less, then around 2 ft in the afternoon. a chance of
showers in the afternoon. 
.thu night...nw winds 5 to 10 kt. waves 1 foot or less. 
.fri through sat night...s winds 5 to 10 kt. waves 1 foot or
less.  

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:202604212100;;734780

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

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


anz231-212100-
cape cod bay-
404 am edt tue apr 21 2026

.today...ne winds 10 to 15 kt, becoming e 5 to 10 kt this
afternoon. seas around 2 ft. wave detail: n 2 ft at 4 seconds and
s 1 foot at 7 seconds. 
.tonight...s winds around 10 kt. seas around 2 ft. wave detail: n
2 ft at 5 seconds and se 1 foot at 3 seconds. 
.wed...s winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
seas around 2 ft. wave detail: sw 2 ft at 4 seconds and ne 1 foot
at 5 seconds. a chance of rain in the morning, then rain likely
in the afternoon. 
.wed night...s winds 5 to 10 kt. seas around 2 ft in the evening,
then 1 foot or less. wave detail: sw 1 foot at 3 seconds and e
1 foot at 6 seconds, becoming s 1 foot at 3 seconds and e 1 foot
at 7 seconds. a chance of rain in the evening. 
.thu and thu night...nw winds 5 to 10 kt. seas 1 foot or less.
wave detail: sw 1 foot at 3 seconds and e 1 foot at 7 seconds. 
.fri through sat night...e winds 5 to 10 kt. seas around 2 ft.
wave detail: nw 1 foot at 3 seconds and s 1 foot at 6 seconds.  

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:202604212100;;734778

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

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


anz250-212100-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
404 am edt tue apr 21 2026

.today...ne winds 10 to 15 kt, becoming se 5 to 10 kt this
afternoon. seas 2 to 3 ft. wave detail: n 3 ft at 5 seconds and
se 1 foot at 7 seconds. 
.tonight...s winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: sw 3 ft at 4 seconds and e 2 ft at 6 seconds. 
.wed...s winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: sw 3 ft at 4 seconds and e 2 ft at 7 seconds.
a chance of rain in the afternoon. 
.wed night...s winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. seas 2 to 3 ft. wave detail: sw 3 ft at 5 seconds and e
2 ft at 8 seconds. a chance of rain in the evening. 
.thu and thu night...nw winds 5 to 10 kt. seas around 2 ft. wave
detail: sw 2 ft at 4 seconds and e 2 ft at 8 seconds. 
.fri through sat night...sw winds 5 to 10 kt. seas 2 to 3 ft.
wave detail: n 3 ft at 5 seconds and e 3 ft at 14 seconds.  

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 kgyx 210637
cwfgyx
expires:202604212045;;731181

coastal waters forecast
national weather service gray me
237 am edt tue apr 21 2026

coastal waters from stonington me to merrimack river ma out to 25 nm


anz154-212045-
coastal waters from cape elizabeth, me to merrimack river, ma out
25 nm-
237 am edt tue apr 21 2026

.rest of tonight...n winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft. wave detail: n 2 ft at 3 seconds. 
.tue...ne winds 5 to 10 kt with gusts up to 20 kt, becoming se in
the afternoon. seas 2 to 3 ft. wave detail: ne 2 ft at 4 seconds. 
.tue night...s winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: s 2 ft at 3 seconds. 
.wed...s winds 10 to 15 kt with gusts up to 20 kt. seas 2 to 3 ft.
wave detail: s 2 ft at 4 seconds. a chance of showers. 
.wed night...s winds 10 to 15 kt, becoming sw 5 to 10 kt after
midnight. seas 2 to 3 ft. wave detail: s 2 ft at 5 seconds. a chance
of showers in the evening. 
.thu...sw winds 5 to 10 kt, becoming nw in the afternoon. seas
around 2 ft. wave detail: s 2 ft at 5 seconds. 
.thu night...nw winds 5 to 10 kt. seas around 2 ft.
.fri...n winds 5 to 10 kt with gusts up to 20 kt, becoming e in the
afternoon. seas around 2 ft. 
.fri night...w winds around 5 kt, becoming n after midnight. seas
around 2 ft in the evening, then 1 foot or less. 
.sat...n winds 5 to 10 kt, becoming se in the afternoon. seas around
2 ft. 
.sat night...s winds around 5 kt, becoming nw after midnight. seas
2 to 3 ft.  

$$