fzus51 kbox 212005
cwfbox
expires:202604220900;;762326

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

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


anz230-220900-
boston harbor-
405 pm edt tue apr 21 2026

.tonight...s winds 10 to 15 kt. waves around 2 ft. 
.wed...s winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
waves around 2 ft. a chance of showers. 
.wed night...s winds 5 to 10 kt. waves around 2 ft in the
evening, then 1 foot or less. patchy fog. a chance of showers in
the evening. 
.thu...w winds 5 to 10 kt, becoming nw 10 to 15 kt in the
afternoon. waves 1 foot or less, then around 2 ft in the
afternoon. 
.thu night...nw winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. waves around 2 ft in the evening, then 1 foot or
less. 
.fri and fri night...nw winds 5 to 10 kt. waves 1 foot or less. 
.sat through sun night...e 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 212005
cwfbox
expires:202604220900;;762315

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

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


anz250-220900-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
405 pm edt tue apr 21 2026

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

$$