fzus51 kbox 181405
cwfbox
expires:202605190300;;769078

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

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


anz230-190300-
boston harbor-
1004 am edt mon may 18 2026

.this afternoon...e winds 10 to 15 kt. gusts up to 20 kt. waves
1 foot or less, then around 2 ft. 
.tonight...s winds around 10 kt. waves around 2 ft. 
.tue...sw winds 10 to 15 kt. gusts up to 20 kt in the afternoon.
waves around 2 ft. 
.tue night...sw winds 10 to 15 kt with gusts up to 20 kt. waves
around 2 ft. 
.wed...w winds 10 to 15 kt with gusts up to 20 kt. waves around
2 ft. showers in the afternoon. 
.wed night...nw winds 10 to 15 kt. gusts up to 20 kt in the
evening. waves around 2 ft. showers likely in the evening. 
.thu through fri...e winds 10 to 15 kt. waves around 2 ft. 
.fri night...s 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 181405
cwfbox
expires:202605190300;;769069

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

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


anz231-190300-
cape cod bay-
1004 am edt mon may 18 2026

.this afternoon...se winds around 10 kt. seas 1 foot or less,
then around 2 ft. wave detail: e 1 foot at 2 seconds and w 1 foot
at 3 seconds, becoming se 1 foot at 2 seconds and sw 1 foot at
3 seconds. 
.tonight...s winds 10 to 15 kt. gusts up to 20 kt after midnight.
seas around 2 ft. wave detail: s 1 foot at 2 seconds and e 1 foot
at 3 seconds. patchy fog after midnight. 
.tue...sw winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. gusts up to 25 kt. seas 2 to 4 ft. wave detail: sw
2 ft at 3 seconds and ne 1 foot at 4 seconds. 
.tue night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 4 ft. wave detail: sw 2 ft at 3 seconds and se 1 foot at
9 seconds. 
.wed...sw winds 10 to 15 kt with gusts up to 25 kt. seas 2 to
4 ft. wave detail: sw 2 ft at 3 seconds and se 1 foot at
3 seconds. showers likely in the afternoon. 
.wed night...w winds 10 to 15 kt, becoming nw after midnight.
gusts up to 20 kt. seas 2 to 3 ft. wave detail: w 2 ft at
3 seconds and n 1 foot at 3 seconds. a chance of showers in the
evening. 
.thu through fri...e winds 10 to 15 kt with gusts up to 20 kt.
seas around 2 ft. 
.fri night...s winds 5 to 10 kt. seas 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 181405
cwfbox
expires:202605190300;;769067

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

.this afternoon...e winds 5 to 10 kt, becoming se 10 to 15 kt
with gusts up to 20 kt. seas 2 to 3 ft. wave detail: e 2 ft at
3 seconds and se 2 ft at 8 seconds. 
.tonight...s winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: se 3 ft at 7 seconds and s 2 ft at 3 seconds.
patchy fog after midnight with vsby 1 to 3 nm. 
.tue...sw winds 10 to 15 kt with gusts up to 20 kt, becoming s
15 to 20 kt with gusts up to 30 kt in the afternoon. seas 2 to
4 ft. wave detail: sw 3 ft at 4 seconds and se 2 ft at 7 seconds.
.tue night...sw winds 15 to 20 kt with gusts up to 30 kt. seas
3 to 5 ft. wave detail: sw 3 ft at 4 seconds and se 3 ft at
7 seconds. 
.wed...sw winds 10 to 15 kt with gusts up to 25 kt. seas 2 to
4 ft. wave detail: sw 3 ft at 4 seconds and se 3 ft at 8 seconds.
showers likely in the afternoon. 
.wed night...w winds around 15 kt, becoming nw after midnight.
gusts up to 20 kt. seas 2 to 4 ft. wave detail: n 3 ft at
4 seconds and se 2 ft at 8 seconds. showers likely in the
evening. 
.thu through fri...e winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. 
.fri night...s winds 5 to 10 kt. seas around 2 ft. 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 kgyx 181315
cwfgyx
expires:202605190315;;767933

coastal waters forecast
national weather service gray me
915 am edt mon may 18 2026

coastal waters from stonington me to merrimack river ma out to 25 nm


anz154-190315-
coastal waters from cape elizabeth, me to merrimack river, ma out
25 nm-
915 am edt mon may 18 2026

.rest of today...e winds 5 to 10 kt, becoming se late. seas 2 to
3 ft. wave detail: se 2 ft at 8 seconds. 
.tonight...se winds 5 to 10 kt, becoming sw 10 to 15 kt after
midnight. seas 2 to 3 ft. wave detail: se 3 ft at 5 seconds. patchy
fog after midnight with vsby 1 to 3 nm. 
.tue...sw winds 10 to 15 kt with gusts up to 25 kt. seas 2 to 4 ft.
wave detail: s 3 ft at 5 seconds. patchy fog in the morning with
vsby 1 to 3 nm. 
.tue night...sw winds 10 to 15 kt with gusts up to 25 kt. seas 3 to
5 ft. wave detail: s 4 ft at 6 seconds. 
.wed...sw winds 10 to 15 kt with gusts up to 20 kt. seas 3 to 4 ft.
wave detail: s 4 ft at 7 seconds. a chance of showers in the
afternoon. 
.wed night...nw winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
4 ft. wave detail: s 3 ft at 6 seconds and w 2 ft at 3 seconds. a
chance of showers in the evening. 
.thu...n winds 10 to 15 kt with gusts up to 20 kt, becoming sw 5 to
10 kt in the afternoon. seas 2 to 3 ft.
.thu night...w winds 5 to 10 kt, becoming nw after midnight. seas
around 2 ft. 
.fri...nw winds around 5 kt, becoming s 10 to 15 kt with gusts up to
20 kt in the afternoon. seas around 2 ft. 
.fri night...s winds 10 to 15 kt with gusts up to 20 kt, becoming sw
5 to 10 kt after midnight. seas around 2 ft.  

$$