fzus51 kbox 181405
cwfbox
expires:202608190300;;938600

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 am edt tue aug 18 2026

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


anz230-190300-
boston harbor-
1005 am edt tue aug 18 2026

.this afternoon...ne winds around 5 kt, becoming e 10 to 15 kt.
waves 1 foot or less. 
.tonight...se winds 5 to 10 kt, becoming s after midnight. waves
1 foot or less. patchy fog after midnight with vsby 1 nm or less.
.wed...s winds 5 to 10 kt. waves 1 foot or less. patchy fog in
the morning with vsby 1 to 3 nm. 
.wed night...sw winds 5 to 10 kt. waves 1 foot or less. 
.thu...nw winds around 5 kt, becoming e in the afternoon. waves
1 foot or less. a chance of showers in the afternoon. 
.thu night...s winds around 5 kt, becoming nw after midnight.
waves 1 foot or less. a chance of showers in the evening. 
.fri and fri night...ne winds 5 to 10 kt. waves 1 foot or less. 
.sat...e winds 5 to 10 kt. waves around 2 ft. a chance of
showers. 
.sat night...e winds 5 to 10 kt. waves 1 foot or less. showers
likely.  

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:202608190300;;938591

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 am edt tue aug 18 2026

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


anz231-190300-
cape cod bay-
1005 am edt tue aug 18 2026

.this afternoon...n winds 10 to 15 kt. gusts up to 20 kt. seas
around 2 ft. wave detail: n 2 ft at 3 seconds and e 2 ft at
10 seconds. patchy fog. vsby 1 to 3 nm. 
.tonight...e winds 5 to 10 kt, becoming sw after midnight. seas
around 2 ft. wave detail: s 2 ft at 9 seconds and n 1 foot at
3 seconds. patchy fog. vsby 1 to 3 nm, decreasing to 1 nm or less
after midnight. 
.wed...sw winds around 5 kt, becoming s 10 to 15 kt with gusts up
to 20 kt in the afternoon. seas around 2 ft. wave detail: ne
1 foot at 3 seconds and s 1 foot at 6 seconds. patchy fog in the
morning with vsby 1 nm or less. 
.wed night...sw winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. seas around 2 ft. wave
detail: sw 1 foot at 2 seconds and e 1 foot at 4 seconds. 
.thu...nw winds around 5 kt, becoming ne in the afternoon. seas
1 foot or less. wave detail: w 1 foot at 2 seconds and se 1 foot
at 6 seconds. 
.thu night...s winds around 5 kt, becoming w after midnight. seas
1 foot or less. wave detail: sw 1 foot at 2 seconds and e 1 foot
at 2 seconds. a chance of showers. 
.fri and fri night...ne winds 5 to 10 kt, becoming e. seas 1 foot
or less. 
.sat...e winds 5 to 10 kt. seas 1 foot or less. a chance of
showers. 
.sat night...e winds 5 to 10 kt. seas 1 foot or less. showers
likely.  

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:202608190300;;938589

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 am edt tue aug 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-
1005 am edt tue aug 18 2026

.this afternoon...n winds around 10 kt. gusts up to 20 kt. seas
2 to 3 ft. wave detail: se 3 ft at 9 seconds and e 2 ft at
5 seconds. patchy fog. vsby 1 nm or less. 
.tonight...se winds 5 to 10 kt, becoming sw after midnight. seas
2 to 4 ft. wave detail: s 4 ft at 8 seconds and se 4 ft at
9 seconds. patchy fog. vsby 1 to 3 nm, decreasing to 1 nm or less
after midnight. 
.wed...s winds around 5 kt, increasing to 10 to 15 kt in the
afternoon. seas 2 to 3 ft. wave detail: sw 3 ft at 7 seconds and
se 3 ft at 8 seconds. patchy fog in the morning with vsby 1 nm or
less. 
.wed night...s winds 10 to 15 kt with gusts up to 20 kt, becoming
w 5 to 10 kt after midnight. seas 2 to 3 ft. wave detail: se 3 ft
at 7 seconds and sw 2 ft at 4 seconds. 
.thu...nw winds 5 to 10 kt, becoming e in the afternoon. seas
2 to 3 ft. wave detail: se 2 ft at 6 seconds and sw 1 foot at
3 seconds. 
.thu night...s winds around 5 kt, becoming w after midnight. seas
around 2 ft. wave detail: sw 2 ft at 3 seconds and se 2 ft at
8 seconds. 
.fri and fri night...ne winds 5 to 10 kt. seas around 2 ft. 
.sat...e winds 5 to 10 kt. seas around 2 ft. a chance of showers.
.sat night...e winds 5 to 10 kt. seas around 2 ft. showers
likely.  

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 kgyx 181203
cwfgyx
expires:202608190100;;935399

coastal waters forecast
national weather service gray me
802 am edt tue aug 18 2026

coastal waters from stonington me to merrimack river ma out to 60 nm


anz154-190100-
coastal waters from cape elizabeth, me to merrimack river, ma out
25 nm-
802 am edt tue aug 18 2026

.today...ne winds around 5 kt. seas around 2 ft. wave detail: se
2 ft at 6 seconds. areas of fog early this morning, then patchy fog
late this morning. vsby 1 nm or less, increasing to 1 to 3 nm late
this morning. 
.tonight...se winds around 5 kt, becoming sw after midnight. seas
2 to 4 ft. wave detail: se 3 ft at 9 seconds. patchy fog in the
evening. patchy fog after midnight with vsby 1 nm or less. 
.wed...sw winds around 5 kt, becoming s in the afternoon. seas 2 to
4 ft. wave detail: se 3 ft at 9 seconds. 
.wed night...sw winds 5 to 10 kt, becoming w after midnight. seas
2 to 3 ft. wave detail: se 3 ft at 7 seconds. 
.thu...nw winds around 5 kt, becoming se in the afternoon. seas 2 to
3 ft. wave detail: se 3 ft at 7 seconds. 
.thu night...s winds around 5 kt, becoming n after midnight. seas
around 2 ft. wave detail: se 2 ft at 8 seconds. 
.fri...ne winds around 5 kt. seas around 2 ft. 
.fri night...se winds around 5 kt, becoming n after midnight. seas
around 2 ft. 
.sat...e winds 5 to 10 kt. seas around 2 ft. a chance of showers in
the afternoon. 
.sat night...e winds 5 to 10 kt. seas around 2 ft. a chance of
showers.  

$$