fzus51 kbox 300505
cwfbox
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coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 am edt thu jul 30 2026

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


anz230-301800-
boston harbor-
104 am edt thu jul 30 2026

.rest of tonight...e winds 15 to 20 kt. waves around 2 ft. patchy
fog. showers likely. vsby 1 nm or less. 
.thu...ne winds 10 to 15 kt with gusts up to 20 kt. waves 2 to
3 ft. patchy fog. showers likely, mainly in the morning. vsby
1 nm or less, increasing to 1 to 3 nm in the afternoon. 
.thu night...n winds 10 to 15 kt. gusts up to 20 kt in the
evening. waves around 2 ft in the evening, then 1 foot or less.
patchy fog. a chance of showers in the evening with vsby 1 to
3 nm. 
.fri...n winds 5 to 10 kt, becoming ne in the afternoon. waves
1 foot or less. 
.fri night...se winds around 5 kt, becoming sw after midnight.
waves 1 foot or less. 
.sat and sat night...sw winds 5 to 10 kt. waves 1 foot or less. 
.sun...s winds 5 to 10 kt. waves around 2 ft. 
.sun night through mon night...w winds 5 to 10 kt. waves 1 foot
or less. a chance of showers.  

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 300505
cwfbox
expires:202607301800;;314250

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 am edt thu jul 30 2026

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


anz250-301800-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
104 am edt thu jul 30 2026

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

.rest of tonight...e winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 5 ft. wave detail: se 4 ft at 6 seconds and s 1 foot at
4 seconds. patchy fog. a chance of showers with a slight chance
of tstms. vsby 1 nm or less. 
.thu...ne winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
5 ft. wave detail: se 4 ft at 4 seconds and se 3 ft at 9 seconds.
patchy fog. a chance of showers. vsby 1 nm or less in the
morning. 
.thu night...n winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas 3 to 5 ft. wave detail: ne 3 ft at 6 seconds and se
3 ft at 9 seconds. patchy fog. a chance of showers in the
evening. 
.fri...n winds 5 to 10 kt. seas 3 to 4 ft. wave detail: n 3 ft at
4 seconds and se 3 ft at 10 seconds. 
.fri night...sw winds around 5 kt. seas 2 to 4 ft. wave detail:
ne 2 ft at 5 seconds and se 2 ft at 9 seconds. 
.sat and sat night...sw winds 5 to 10 kt. seas 2 to 3 ft. wave
detail: s 2 ft at 3 seconds and se 2 ft at 9 seconds. 
.sun...s winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. 
.sun night and mon...s winds 10 to 15 kt with gusts up to 20 kt,
becoming sw 5 to 10 kt. seas 2 to 3 ft. a chance of showers. 
.mon night...w winds 5 to 10 kt. seas around 2 ft.  

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.

$$