fzus51 kbox 181105
cwfbox
expires:202603190000;;896353

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
704 am edt wed mar 18 2026

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


anz230-190000-
boston harbor-
704 am edt wed mar 18 2026

.today...w winds 10 to 15 kt with gusts up to 20 kt, becoming nw
5 to 10 kt this afternoon. waves around 2 ft this morning, then
1 foot or less. 
.tonight...s winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. waves 1 foot or less. 
.thu...se winds 5 to 10 kt. waves 1 foot or less. 
.thu night...s winds 10 to 15 kt, becoming sw 5 to 10 kt after
midnight. waves around 2 ft in the evening, then 1 foot or less. 
.fri...sw winds 5 to 10 kt. waves 1 foot or less. 
.fri night...s winds 10 to 15 kt. waves 1 foot or less, then
around 2 ft after midnight. a chance of rain after midnight. 
.sat through sun night...nw winds 20 to 25 kt. waves around 2 ft.
a chance of rain.  

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 181105
cwfbox
expires:202603190000;;896342

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
704 am edt wed mar 18 2026

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


anz250-190000-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
704 am edt wed mar 18 2026

...small craft advisory in effect through thursday morning...

.today...nw winds 15 to 20 kt with gusts up to 25 kt, becoming w
5 to 10 kt this afternoon. seas 5 to 7 ft. wave detail: se 6 ft
at 11 seconds and nw 5 ft at 5 seconds. 
.tonight...s winds 5 to 10 kt. seas 3 to 5 ft. wave detail: se
5 ft at 10 seconds and nw 2 ft at 4 seconds. 
.thu...s winds 5 to 10 kt, becoming se 10 to 15 kt in the
afternoon. seas 3 to 4 ft. wave detail: se 4 ft at 10 seconds and
se 2 ft at 3 seconds.
.thu night...s winds 10 to 15 kt, becoming sw after midnight.
seas 2 to 4 ft. wave detail: se 3 ft at 9 seconds and se 2 ft at
3 seconds. 
.fri...sw winds 10 to 15 kt. seas 2 to 4 ft. wave detail: se 3 ft
at 8 seconds and sw 2 ft at 3 seconds. 
.fri night...s winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 4 ft. wave detail: e 4 ft at 9 seconds and sw 2 ft at
3 seconds. a chance of rain after midnight. 
.sat through sun night...nw winds 20 to 25 kt with gusts up to
30 kt. seas 3 to 5 ft. a chance of rain.  

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.

$$