fzus51 kbox 170503
cwfbox
expires:202605171800;;691346

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

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


anz230-171800-
boston harbor-
103 am edt sun may 17 2026

.rest of tonight...sw winds 10 to 15 kt with gusts up to 20 kt.
waves around 2 ft. 
.sun...w winds 10 to 15 kt. gusts up to 25 kt in the afternoon.
waves around 2 ft. 
.sun night...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, becoming se 10 to 15 kt in the
afternoon. waves 1 foot or less, then around 2 ft in the
afternoon. 
.mon night through tue night...sw winds 10 to 15 kt with gusts up
to 20 kt. waves around 2 ft. 
.wed and wed night...w winds 10 to 15 kt with gusts up to 20 kt.
waves around 2 ft. a chance of showers. 
.thu and thu night...n winds 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 170503
cwfbox
expires:202605171800;;691335

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

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


anz250-171800-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
103 am edt sun may 17 2026

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

.rest of tonight...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 5 ft. wave detail: sw 4 ft at 5 seconds and se 3 ft at
9 seconds. 
.sun...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.
.sun night...w winds 5 to 10 kt with gusts up to 20 kt, becoming
ne after midnight. seas 2 to 3 ft. wave detail: se 2 ft at
8 seconds and w 1 foot 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: s 2 ft
at 3 seconds and se 2 ft at 7 seconds. 
.mon night through 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 4 seconds and
se 2 ft at 8 seconds. 
.wed and wed night...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. wave detail: sw 3 ft at 4 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,
diminishing to 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.

$$