fzus51 kbox 181803
cwfbox
expires:202511190700;;091198

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm est tue nov 18 2025

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


anz230-190700-
boston harbor-
103 pm est tue nov 18 2025

.this afternoon...w winds 10 to 15 kt with gusts up to 20 kt.
waves around 2 ft. 
.tonight...w winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. waves around 2 ft in the evening, then 1 foot or less. 
.wed...nw winds 5 to 10 kt. waves 1 foot or less.
.wed night...nw winds around 5 kt. waves 1 foot or less. 
.thu...n winds around 5 kt. waves 1 foot or less. 
.thu night...n winds around 5 kt, becoming w after midnight.
waves 1 foot or less. 
.fri through sat night...nw winds 10 to 15 kt. waves around 2 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 kbox 181803
cwfbox
expires:202511190700;;091187

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm est tue nov 18 2025

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


anz250-190700-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
103 pm est tue nov 18 2025

...small craft advisory in effect until 7 pm est this evening...

.this afternoon...w winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 5 ft. wave detail: w 4 ft at 5 seconds and se 1 foot at
12 seconds. 
.tonight...w winds 10 to 15 kt. gusts up to 20 kt in the evening.
seas 2 to 4 ft. wave detail: w 3 ft at 5 seconds and se 1 foot at
11 seconds. 
.wed...nw winds 5 to 10 kt. seas around 2 ft. wave detail: w 2 ft
at 4 seconds and e 1 foot at 11 seconds. 
.wed night...n winds around 5 kt. seas 1 foot or less. wave
detail: nw 1 foot at 3 seconds and e 1 foot at 11 seconds. 
.thu...ne winds around 5 kt. seas 1 foot or less. wave detail: nw
1 foot at 2 seconds and e 1 foot at 10 seconds. 
.thu night...e winds around 5 kt, becoming w after midnight. seas
1 foot or less. wave detail: nw 1 foot at 2 seconds and e 1 foot
at 10 seconds. 
.fri...sw winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. 
.fri night...w winds around 15 kt with gusts up to 25 kt. seas
2 to 4 ft. a chance of rain. 
.sat and sat night...nw winds 10 to 15 kt. gusts up to 20 kt.
seas 2 to 4 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.

$$