fzus51 kbox 181405
cwfbox
expires:202607190300;;178161

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt sat jul 18 2026

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


anz230-190300-
boston harbor-
1004 am edt sat jul 18 2026

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

.this afternoon...s winds around 10 kt, increasing to 15 to 20 kt
with gusts up to 30 kt. waves around 2 ft. smoke. a chance of
showers with isolated tstms. 
.tonight...sw winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. gusts up to 30 kt. waves around 2 ft. smoke in the
evening. showers likely in the evening. 
.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 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 and tstms. 
.tue night through wed night...sw winds 10 to 15 kt with gusts up
to 25 kt. waves 2 to 3 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 181405
cwfbox
expires:202607190300;;178150

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt sat jul 18 2026

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


anz250-190300-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
1004 am edt sat jul 18 2026

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

.this afternoon...s winds around 10 kt with gusts up to 20 kt,
increasing to 20 to 25 kt with gusts up to 30 kt. seas around
2 ft, building to 3 to 5 ft. wave detail: s 2 ft at 3 seconds and
nw 1 foot at 3 seconds, becoming s 5 ft at 5 seconds and w 2 ft
at 4 seconds. areas of smoke. a chance of showers with isolated
tstms. 
.tonight...sw winds 20 to 25 kt with 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. showers likely in the evening, then a chance of
showers and tstms after midnight. areas of smoke in the evening. 
.sun...w winds 15 to 20 kt, becoming nw 10 to 15 kt in the
afternoon. 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...s winds 15 to 20 kt with gusts up to 30 kt. seas
3 to 4 ft. showers.
.wed...s winds 15 to 20 kt with gusts up to 30 kt. seas 4 to
6 ft. showers.
.wed night...sw winds 15 to 20 kt with gusts up to 30 kt. seas
4 to 6 ft. a chance of showers and tstms.  

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.

$$