fzus51 kbox 170803
cwfbox
expires:202605172100;;700164

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sun may 17 2026

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


anz230-172100-
boston harbor-
403 am edt sun may 17 2026

.today...w winds 10 to 15 kt. gusts up to 25 kt this afternoon.
waves around 2 ft. 
.tonight...nw winds 5 to 10 kt with gusts up to 20 kt, becoming
ne after midnight. waves around 2 ft in the evening, then 1 foot
or less. 
.mon...e winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. waves 1 foot or less, then around 2 ft in the
afternoon. 
.mon night...s winds 10 to 15 kt, becoming sw after midnight.
waves around 2 ft. 
.tue and tue night...sw winds 10 to 15 kt with gusts up to 20 kt.
waves around 2 ft. 
.wed and wed night...sw winds 10 to 15 kt, becoming w. gusts up
to 25 kt. waves around 2 ft. showers likely. 
.thu and thu night...n winds 10 to 15 kt, diminishing to 5 to
10 kt. waves around 2 ft, then 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 170803
cwfbox
expires:202605172100;;700153

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
403 am edt sun may 17 2026

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


anz250-172100-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
403 am edt sun may 17 2026

...small craft advisory in effect until 8 am edt this morning...

.today...sw winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
5 ft. wave detail: sw 3 ft at 5 seconds and se 3 ft at 9 seconds.
.tonight...w winds 5 to 10 kt with gusts up to 20 kt, becoming ne
after midnight. seas 2 to 3 ft. wave detail: se 3 ft at 8 seconds
and w 2 ft at 3 seconds. 
.mon...e winds 5 to 10 kt, becoming se 10 to 15 kt with gusts up
to 20 kt in the afternoon. seas around 2 ft. wave detail: e 2 ft
at 7 seconds and w 1 foot at 3 seconds. 
.mon night...s winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft. wave detail: se 2 ft at 3 seconds and se 2 ft at
7 seconds. 
.tue and tue night...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. wave detail: sw 4 ft at 5 seconds and se 2 ft at
9 seconds. 
.wed and wed night...sw winds 15 to 20 kt, becoming w. gusts up
to 25 kt. seas 2 to 4 ft. wave detail: sw 4 ft at 5 seconds and
se 2 ft at 9 seconds. a chance of showers. 
.thu and thu night...n winds 10 to 15 kt with gusts up to 20 kt,
becoming nw 5 to 10 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.

$$