fzus51 kbox 182005
cwfbox
expires:202604190900;;598276

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

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz230-190900-
boston harbor-
404 pm edt sat apr 18 2026

.tonight...e winds 5 to 10 kt, becoming se after midnight. waves
1 foot or less. patchy fog. patchy drizzle after midnight. vsby
1 to 3 nm, decreasing to 1 nm or less after midnight. 
.sun...se winds 5 to 10 kt, becoming nw 15 to 20 kt with gusts up
to 25 kt in the afternoon. waves around 2 ft. patchy fog.
showers. vsby 1 nm or less, increasing to 1 to 3 nm in the
afternoon. 
.sun night...nw winds 15 to 20 kt with gusts up to 25 kt,
becoming w 10 to 15 kt after midnight. waves around 2 ft. a
chance of showers in the evening. 
.mon...w winds 5 to 10 kt. waves 1 foot or less. 
.mon night...nw winds 5 to 10 kt, becoming n 10 to 15 kt after
midnight. waves 1 foot or less, then around 2 ft after midnight. 
.tue and tue night...sw winds 10 to 15 kt. waves around 2 ft. 
.wed through thu night...nw winds 10 to 15 kt. waves around 2 ft.
 

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 182005
cwfbox
expires:202604190900;;598267

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

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz231-190900-
cape cod bay-
404 pm edt sat apr 18 2026

.tonight...e winds around 5 kt, becoming s after midnight. seas
around 2 ft. wave detail: ne 1 foot at 4 seconds and s 1 foot at
8 seconds. patchy fog. patchy drizzle. vsby 1 nm or less. 
.sun...s winds 10 to 15 kt, becoming w in the afternoon. gusts up
to 25 kt. seas 2 to 3 ft. wave detail: n 1 foot at 5 seconds and
s 1 foot at 7 seconds. patchy fog. a chance of showers in the
morning, then showers in the afternoon. vsby 1 nm or less,
increasing to 1 to 3 nm in the afternoon. 
.sun night...nw winds 15 to 20 kt, becoming w 10 to 15 kt after
midnight. gusts up to 25 kt. seas 2 to 3 ft. wave detail: nw 2 ft
at 4 seconds and s 1 foot at 6 seconds. a chance of showers in
the evening. 
.mon...w winds 5 to 10 kt, becoming n in the afternoon. seas
around 2 ft. wave detail: nw 1 foot at 4 seconds and ne 1 foot at
6 seconds. 
.mon night...n winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt after midnight. seas around 2 ft. wave detail:
n 2 ft at 5 seconds and s 1 foot at 7 seconds. 
.tue and tue night...sw winds 10 to 15 kt. seas around 2 ft. wave
detail: n 2 ft at 5 seconds and s 1 foot at 7 seconds. 
.wed...sw winds 10 to 15 kt with gusts up to 20 kt. seas around
2 ft. a chance of showers. 
.wed night through thu night...nw winds 5 to 10 kt. seas around
2 ft.  

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 182005
cwfbox
expires:202604190900;;598265

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

coastal waters from the merrimack river ma to watch hill ri out
to 25 nm


anz250-190900-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
404 pm edt sat apr 18 2026

.tonight...e winds 5 to 10 kt, becoming se after midnight. seas
3 to 4 ft. wave detail: e 4 ft at 7 seconds and n 1 foot at
3 seconds. patchy fog. patchy drizzle. vsby 1 nm or less. 
.sun...s winds 10 to 15 kt, becoming w 15 to 20 kt in the
afternoon. gusts up to 25 kt. seas 3 to 4 ft. wave detail: e 4 ft
at 8 seconds and sw 1 foot at 3 seconds. patchy fog. a chance of
showers in the morning, then showers in the afternoon. vsby 1 nm
or less. 
.sun night...nw winds 15 to 20 kt, becoming w 10 to 15 kt after
midnight. gusts up to 25 kt. seas 3 to 4 ft. wave detail: se 4 ft
at 6 seconds and w 3 ft at 4 seconds. patchy fog in the evening.
showers likely in the evening. 
.mon...w winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. seas 2 to 4 ft. wave detail: w 2 ft at 4 seconds and
se 2 ft at 7 seconds. 
.mon night...n winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas 2 to 4 ft. wave detail: n 3 ft at 4 seconds and e
3 ft at 8 seconds. 
.tue and tue night...sw winds 15 to 20 kt. seas 2 to 4 ft. wave
detail: s 3 ft at 4 seconds and n 3 ft at 6 seconds. 
.wed through thu night...nw winds 10 to 15 kt with gusts up to
20 kt. seas 2 to 3 ft.  

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 181839
cwfgyx
expires:202604190845;;595229

coastal waters forecast
national weather service gray me
239 pm edt sat apr 18 2026

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


anz154-190845-
coastal waters from cape elizabeth, me to merrimack river, ma out
25 nm-
239 pm edt sat apr 18 2026

.tonight...e winds 5 to 10 kt, becoming s towards daybreak. seas
2 to 3 ft. patchy fog late this evening and overnight with vsby 1 nm
or less. 
.sun...s winds 5 to 10 kt, becoming w 15 to 20 kt with gusts up to
25 kt in the afternoon. seas 3 to 4 ft. rain. vsby 1 nm or less in
the morning. 
.sun night...nw winds 15 to 20 kt, becoming w 10 to 15 kt after
midnight. gusts up to 30 kt. seas 3 to 5 ft. wave detail: e 4 ft at
3 seconds and nw 2 ft at 3 seconds. rain likely in the evening. 
.mon...w winds 10 to 15 kt with gusts up to 20 kt, diminishing to
5 to 10 kt in the afternoon. seas 2 to 4 ft. wave detail: e 3 ft at
3 seconds and w 2 ft at 3 seconds. 
.mon night...n winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: e 2 ft at 3 seconds and nw 2 ft at 3 seconds. 
.tue...n winds 10 to 15 kt with gusts up to 20 kt, becoming se 5 to
10 kt in the afternoon. seas 2 to 3 ft.
.tue night...s winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. 
.wed...sw winds 10 to 15 kt with gusts up to 25 kt. seas 2 to 4 ft. 
.wed night...w winds 10 to 15 kt with gusts up to 20 kt. seas around
2 ft. 
.thu...nw winds 10 to 15 kt with gusts up to 20 kt, diminishing to
5 to 10 kt in the afternoon. seas 2 to 3 ft. 
.thu night...nw winds 5 to 10 kt. seas around 2 ft. 

$$