fzus51 kbox 171403
cwfbox
expires:202605180300;;712594

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt sun may 17 2026

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


anz230-180300-
boston harbor-
1003 am edt sun may 17 2026

.this afternoon...w winds 10 to 15 kt. gusts up to 25 kt. 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 171403
cwfbox
expires:202605180300;;712585

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt sun may 17 2026

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


anz231-180300-
cape cod bay-
1003 am edt sun may 17 2026

.this afternoon...sw winds 5 to 10 kt, increasing to 10 to 15 kt
with gusts up to 20 kt. seas around 2 ft. wave detail: sw 1 foot
at 3 seconds and se 1 foot at 9 seconds. 
.tonight...w winds 10 to 15 kt with gusts up to 20 kt, becoming
ne 5 to 10 kt after midnight. seas around 2 ft in the evening,
then 1 foot or less. wave detail: w 1 foot at 3 seconds and se
1 foot at 9 seconds, becoming nw 1 foot at 3 seconds and e 1 foot
at 8 seconds. 
.mon...e winds 5 to 10 kt. seas 1 foot or less, then around 2 ft
in the afternoon. wave detail: ne 1 foot at 2 seconds and nw
1 foot at 3 seconds, becoming e 1 foot at 3 seconds. 
.mon night...s winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas around 2 ft. wave detail: s 1 foot at 2 seconds
and ne 1 foot at 4 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 2 ft at 3 seconds and e 1 foot at
4 seconds. 
.wed and wed night...sw winds 15 to 20 kt, becoming w 10 to
15 kt. gusts up to 25 kt. seas 2 to 4 ft. wave detail: sw 2 ft at
3 seconds and se 1 foot at 10 seconds. a chance of showers. 
.thu and thu night...n winds 10 to 15 kt with gusts up to 20 kt,
becoming nw around 5 kt. seas 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 171403
cwfbox
expires:202605180300;;712583

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt sun may 17 2026

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


anz250-180300-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
1003 am edt sun may 17 2026

.this afternoon...sw winds around 10 kt. gusts up to 20 kt. seas
2 to 4 ft. wave detail: se 3 ft at 8 seconds and sw 2 ft at
4 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.

$$

fzus51 kgyx 171203
cwfgyx
expires:202605180100;;709156

coastal waters forecast
national weather service gray me
803 am edt sun may 17 2026

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


anz154-180100-
coastal waters from cape elizabeth, me to merrimack river, ma out
25 nm-
803 am edt sun may 17 2026

...small craft advisory in effect until 10 am edt this morning...

.today...w winds 10 to 15 kt with gusts up to 20 kt. seas 3 to 5 ft.
wave detail: s 4 ft at 6 seconds and se 4 ft at 9 seconds. 
.tonight...nw winds 5 to 10 kt, becoming ne after midnight. seas
2 to 3 ft. wave detail: se 3 ft at 8 seconds. 
.mon...e winds around 5 kt, becoming se in the afternoon. seas 2 to
3 ft. wave detail: se 2 ft at 8 seconds. 
.mon night...s winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
4 ft. wave detail: se 2 ft at 4 seconds and se 2 ft at 8 seconds. 
.tue...sw winds 10 to 15 kt with gusts up to 25 kt. seas 2 to 4 ft.
wave detail: s 3 ft at 4 seconds and se 2 ft at 9 seconds. 
.tue night...sw winds 10 to 15 kt with gusts up to 25 kt. seas 3 to
4 ft. wave detail: s 4 ft at 6 seconds. 
.wed...sw winds 10 to 15 kt with gusts up to 25 kt. seas 3 to 4 ft.
showers likely in the afternoon. 
.wed night...w winds 10 to 15 kt with gusts up to 25 kt. seas 2 to
4 ft. a chance of showers in the evening. 
.thu...nw winds 10 to 15 kt with gusts up to 20 kt, becoming sw 5 to
10 kt in the afternoon. seas 2 to 3 ft. 
.thu night...nw winds 5 to 10 kt. seas around 2 ft. 

$$