fzus51 kbox 200806
cwfbox
expires:202604202100;;680949

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt mon apr 20 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz230-202100-
boston harbor-
405 am edt mon apr 20 2026

.today...w winds around 10 kt. waves 1 foot or less. 
.tonight...nw winds 5 to 10 kt, becoming n 10 to 15 kt after
midnight. waves 1 foot or less, then around 2 ft after midnight. 
.tue...n winds 5 to 10 kt, becoming e in the afternoon. waves
1 foot or less. 
.tue night...s winds 10 to 15 kt. waves 1 foot or less. 
.wed...s winds around 10 kt. waves 1 foot or less, then around
2 ft in the afternoon. 
.wed night...s winds 5 to 10 kt, becoming w after midnight. waves
1 foot or less. 
.thu through fri night...ne 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 200806
cwfbox
expires:202604202100;;680938

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt mon apr 20 2026

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz250-202100-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
405 am edt mon apr 20 2026

.today...w winds 10 to 15 kt, diminishing to 5 to 10 kt this
afternoon. seas 2 to 4 ft. wave detail: w 2 ft at 4 seconds and
se 2 ft at 7 seconds. 
.tonight...n winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. seas 2 to 4 ft. wave detail: n 3 ft at 4 seconds and nw
2 ft at 4 seconds. 
.tue...n winds 10 to 15 kt, becoming ne 5 to 10 kt in the
afternoon. seas 2 to 4 ft. wave detail: n 3 ft at 5 seconds and e
2 ft at 8 seconds. 
.tue night...s winds 10 to 15 kt. seas 2 to 3 ft. wave detail: ne
2 ft at 4 seconds and se 2 ft at 7 seconds. 
.wed and wed night...s winds 10 to 15 kt. seas 2 to 4 ft. wave
detail: sw 2 ft at 3 seconds and e 2 ft at 9 seconds. 
.thu through fri night...ne winds 10 to 15 kt. seas 2 to 3 ft.
wave detail: nw 2 ft at 4 seconds and ne 2 ft at 5 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.

$$