fzus51 kbox 181705
cwfbox
expires:202607190600;;183975

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt sat jul 18 2026

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


anz230-190600-
boston harbor-
104 pm edt sat jul 18 2026

...small craft advisory in effect through sunday morning...

.this afternoon...s winds 15 to 20 kt with gusts up to 30 kt.
waves around 2 ft. smoke. a chance of showers and tstms. vsby
1 to 3 nm. 
.tonight...sw winds 15 to 20 kt. gusts up to 30 kt in the
evening. waves around 2 ft. smoke in the evening. a chance of
showers and tstms in the evening with vsby 1 to 3 nm. 
.sun...nw winds 10 to 15 kt with gusts up to 20 kt. waves around
2 ft. 
.sun night...nw winds 5 to 10 kt. waves around 2 ft in the
evening, then 1 foot or less. 
.mon and mon night...sw winds 5 to 10 kt. waves 1 foot or less. 
.tue...s winds 10 to 15 kt with gusts up to 20 kt. waves 2 to
3 ft. a chance of showers. 
.tue night...se winds 10 to 15 kt with gusts up to 20 kt. waves
around 2 ft. showers.
.wed and wed night...sw winds 15 to 20 kt with gusts up to 25 kt.
waves around 2 ft. showers with a chance of tstms.  

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 181705
cwfbox
expires:202607190600;;183964

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
104 pm edt sat jul 18 2026

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


anz250-190600-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
104 pm edt sat jul 18 2026

...small craft advisory in effect through sunday morning...

.this afternoon...s winds 20 to 25 kt with gusts up to 30 kt.
seas 3 to 5 ft. wave detail: s 5 ft at 5 seconds and w 2 ft at
4 seconds. areas of smoke. a chance of showers with a slight
chance of tstms. 
.tonight...s winds 20 to 25 kt, becoming sw 15 to 20 kt after
midnight. gusts up to 30 kt. seas 4 to 6 ft. wave detail: s 5 ft
at 6 seconds and e 1 foot at 14 seconds. a chance of showers. a
chance of tstms in the evening. areas of smoke in the evening
with vsby 1 to 3 nm.
.sun...nw winds 10 to 15 kt with gusts up to 25 kt. seas 2 to
4 ft. wave detail: se 4 ft at 7 seconds and w 2 ft at 4 seconds. 
.sun night...nw winds 5 to 10 kt. seas around 2 ft. wave detail:
nw 2 ft at 4 seconds and se 2 ft at 7 seconds. 
.mon and mon night...s winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. wave detail: s 2 ft at 4 seconds and nw 1 foot
at 3 seconds. 
.tue...s winds 10 to 15 kt with gusts up to 25 kt. seas 2 to
3 ft. wave detail: s 3 ft at 4 seconds and se 1 foot at
8 seconds. a chance of showers. 
.tue night...se winds 15 to 20 kt with gusts up to 30 kt. seas
3 to 4 ft. showers with a chance of tstms. 
.wed...s winds 15 to 20 kt with gusts up to 35 kt. seas 4 to
6 ft. showers.
.wed night...sw winds 15 to 20 kt with gusts up to 35 kt. seas
4 to 6 ft. a chance of showers.  

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.

$$