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coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
105 am edt tue mar 24 2026

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


anz230-241800-
boston harbor-
105 am edt tue mar 24 2026

.rest of tonight...n winds 10 to 15 kt. waves around 2 ft. 
.tue...n winds 10 to 15 kt, becoming sw 5 to 10 kt in the
afternoon. waves around 2 ft in the morning, then 1 foot or less.
at the outer harbor entrance, waves 2 to 4 ft. 
.tue night...sw winds 10 to 15 kt. waves around 2 ft. 
.wed...w winds 5 to 10 kt, becoming sw 10 to 15 kt with gusts up
to 20 kt in the afternoon. waves 1 foot or less, then around 2 ft
in the afternoon. 
.wed night and thu...sw winds 15 to 20 kt. waves around 2 ft. a
chance of rain through the day. 
.thu night...sw winds 15 to 20 kt with gusts up to 25 kt. waves
around 2 ft. a chance of rain in the evening, then rain likely
after midnight. 
.fri...nw winds 15 to 20 kt with gusts up to 25 kt. waves around
2 ft. rain likely. 
.fri night through sat night...w winds 15 to 20 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 240505
cwfbox
expires:202603241800;;200820

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
105 am edt tue mar 24 2026

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


anz250-241800-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
105 am edt tue mar 24 2026

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

.rest of tonight...n winds around 15 kt with gusts up to 20 kt.
seas 6 to 7 ft. wave detail: ne 7 ft at 9 seconds and se 3 ft at
9 seconds. 
.tue...n winds 10 to 15 kt with gusts up to 20 kt, becoming w
5 to 10 kt in the afternoon. seas 5 to 7 ft. wave detail: ne 6 ft
at 9 seconds and se 3 ft at 9 seconds. 
.tue night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. wave detail: e 5 ft at 9 seconds and sw 3 ft at
3 seconds. 
.wed...w winds 10 to 15 kt, becoming sw 15 to 20 kt in the
afternoon. seas 3 to 4 ft. wave detail: w 3 ft at 4 seconds and e
3 ft at 9 seconds. 
.wed night and thu...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 5 ft. wave detail: s 4 ft at 4 seconds and e 2 ft at
9 seconds. a chance of rain through the day. 
.thu night...sw winds 20 to 25 kt with gusts up to 30 kt. seas
4 to 6 ft. wave detail: sw 4 ft at 4 seconds and se 3 ft at
7 seconds. a chance of rain in the evening, then rain likely
after midnight. 
.fri...nw winds 20 to 25 kt. seas 4 to 6 ft. rain likely. 
.fri night and sat...n winds 20 to 25 kt, diminishing to 15 to
20 kt. seas 4 to 6 ft. 
.sat night...sw winds 15 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.

$$