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

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


anz230-222100-
boston harbor-
403 am edt wed jul 22 2026

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

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 220803
cwfbox
expires:202607222100;;398142

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

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


anz250-222100-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
403 am edt wed jul 22 2026

...small craft advisory in effect through late tonight...

.today...s winds 15 to 20 kt with gusts up to 30 kt. seas 3 to
5 ft. wave detail: s 5 ft at 6 seconds and se 4 ft at 9 seconds.
showers with a chance of tstms this morning, then a slight chance
of showers this afternoon. patchy fog this morning with vsby 1 to
3 nm. 
.tonight...sw winds 10 to 15 kt with gusts up to 25 kt, becoming
w after midnight. seas 3 to 5 ft. wave detail: se 4 ft at
9 seconds and sw 3 ft at 4 seconds. 
.thu...nw winds 5 to 10 kt, becoming e in the afternoon. seas
2 to 4 ft. wave detail: se 3 ft at 9 seconds and w 1 foot at
3 seconds. 
.thu night...s winds 5 to 10 kt, becoming sw after midnight. seas
2 to 3 ft. wave detail: se 3 ft at 8 seconds and sw 2 ft at
5 seconds. 
.fri and fri night...se winds around 5 kt. seas 2 to 3 ft. wave
detail: s 2 ft at 7 seconds. 
.sat through sun night...s winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: se 3 ft at 7 seconds and s 3 ft at 8 seconds.  

winds and seas 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.

$$