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coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm edt wed jul 22 2026

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


anz230-230900-
boston harbor-
405 pm edt wed jul 22 2026

.tonight...w winds 10 to 15 kt, becoming nw 5 to 10 kt after
midnight. waves around 2 ft this evening, then 1 foot or less. a
slight chance of showers and tstms this evening. 
.thu...nw winds 5 to 10 kt, becoming se in the afternoon. waves
1 foot or less. 
.thu night...s winds 5 to 10 kt, becoming sw after midnight.
waves 1 foot or less. 
.fri...sw winds around 5 kt, becoming e in the afternoon. waves
1 foot or less. 
.fri night...se winds 5 to 10 kt, becoming sw after midnight.
waves 1 foot or less. 
.sat and sat night...n winds 5 to 10 kt. waves 1 foot or less. 
.sun through mon...s winds 5 to 10 kt. waves around 2 ft. 
.mon night...s winds 5 to 10 kt. waves 1 foot or less. a chance
of showers.  

winds and waves higher in and near tstms.

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 222005
cwfbox
expires:202607230900;;426939

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 pm edt wed jul 22 2026

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


anz250-230900-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
405 pm edt wed jul 22 2026

...small craft advisory in effect until 2 am edt thursday...

.tonight...sw winds 10 to 15 kt with gusts up to 25 kt, becoming
nw 5 to 10 kt after midnight. seas 3 to 5 ft. wave detail: se
4 ft at 9 seconds and sw 2 ft at 4 seconds. a slight chance of
showers this evening. 
.thu...nw winds 5 to 10 kt, becoming e in the afternoon. seas
2 to 4 ft. wave detail: se 4 ft at 9 seconds and w 1 foot at
3 seconds. 
.thu night...s winds around 5 kt. seas 2 to 3 ft. wave detail: se
3 ft at 8 seconds and sw 1 foot at 3 seconds. 
.fri...sw winds around 5 kt, becoming se in the afternoon. seas
2 to 3 ft. wave detail: se 2 ft at 8 seconds and w 1 foot at
3 seconds. 
.fri night...se winds 5 to 10 kt, becoming sw after midnight.
seas around 2 ft. wave detail: se 2 ft at 7 seconds and s 1 foot
at 2 seconds. 
.sat and sat night...ne winds around 5 kt. seas 2 to 3 ft. wave
detail: s 3 ft at 7 seconds. 
.sun through mon night...s winds 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.

$$