fzus51 kbox 180603
cwfbox
expires:202511181900;;603432

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

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


anz230-181900-
boston harbor-
103 am est tue nov 18 2025

...small craft advisory in effect until 7 am est this morning...

.rest of tonight...w winds 15 to 20 kt. waves around 2 ft. 
.tue...w winds 15 to 20 kt. waves around 2 ft. 
.tue night...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...w winds 5 to 10 kt. waves 1 foot or less. 
.wed night...nw winds around 5 kt. waves 1 foot or less. 
.thu and thu night...sw winds around 5 kt. waves 1 foot or less. 
.fri and fri night...sw winds 10 to 15 kt, becoming w. gusts up
to 20 kt. waves around 2 ft. a chance of rain. 
.sat and sat night...nw 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 180603
cwfbox
expires:202511181900;;603421

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

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


anz250-181900-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
103 am est tue nov 18 2025

...small craft advisory in effect through this evening...

.rest of tonight...w winds 20 to 25 kt with gusts up to 30 kt.
seas 5 to 7 ft. wave detail: w 6 ft at 5 seconds and e 1 foot at
13 seconds. 
.tue...w winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. gusts up to 30 kt. seas 4 to 6 ft. wave detail: w 6 ft
at 5 seconds and se 1 foot at 12 seconds. 
.tue night...w winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas 2 to 4 ft. wave detail: w 4 ft at 5 seconds and se
1 foot at 11 seconds. 
.wed...w 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...nw winds around 5 kt. seas 1 foot or less. wave
detail: nw 1 foot at 3 seconds and e 1 foot at 10 seconds. 
.thu and thu night...sw winds 5 to 10 kt. seas 1 foot or less.
wave detail: nw 1 foot at 2 seconds and e 1 foot at 10 seconds. 
.fri and fri night...s winds 10 to 15 kt, becoming w 15 to 20 kt.
gusts up to 25 kt. seas 2 to 4 ft. a chance of rain. 
.sat and sat night...nw winds 15 to 20 kt, diminishing to 10 to
15 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.

$$