fzus51 kbox 180805
cwfbox
expires:202604182100;;570188

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

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


anz230-182100-
boston harbor-
404 am edt sat apr 18 2026

.today...ne winds 10 to 15 kt. waves 1 foot or less, then around
2 ft this afternoon. areas of fog. vsby 1 nm or less this
morning. 
.tonight...e winds 5 to 10 kt, becoming se after midnight. waves
1 foot or less. areas of fog in the evening, then patchy fog
after midnight. vsby 1 nm or less, increasing to 1 to 3 nm after
midnight. 
.sun...s winds 5 to 10 kt, becoming w 10 to 15 kt with gusts up
to 20 kt in the afternoon. waves 1 foot or less, then around 2 ft
in the afternoon. patchy fog. rain. vsby 1 to 3 nm. 
.sun night...nw winds 15 to 20 kt, becoming w 10 to 15 kt after
midnight. waves around 2 ft. rain, mainly in the evening. 
.mon...w winds around 10 kt. waves 1 foot or less. 
.mon night...n winds 10 to 15 kt. waves 1 foot or less, then
around 2 ft after midnight. 
.tue through wed night...w 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 180805
cwfbox
expires:202604182100;;570179

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

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


anz231-182100-
cape cod bay-
404 am edt sat apr 18 2026

.today...ne winds 10 to 15 kt with gusts up to 20 kt. seas around
2 ft. wave detail: n 1 foot at 3 seconds and s 1 foot at
8 seconds. areas of fog. vsby 1 nm or less, increasing to 1 to
3 nm this afternoon. 
.tonight...e winds 5 to 10 kt, becoming s after midnight. seas
around 2 ft. wave detail: ne 1 foot at 3 seconds and s 1 foot at
7 seconds. areas of fog in the evening, then patchy fog after
midnight. vsby 1 nm or less, increasing to 1 to 3 nm after
midnight. 
.sun...s winds 5 to 10 kt, becoming w 10 to 15 kt with gusts up
to 20 kt in the afternoon. seas around 2 ft. wave detail: n 2 ft
at 5 seconds and s 1 foot at 7 seconds. patchy fog. a chance of
rain in the morning, then rain in the afternoon. vsby 1 to 3 nm. 
.sun night...nw winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft. wave detail: nw 2 ft at 4 seconds and s 1 foot at
5 seconds. rain, mainly in the evening. patchy fog in the
evening. 
.mon...nw winds 5 to 10 kt. seas around 2 ft. wave detail: nw
2 ft 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 through wed night...w winds 10 to 15 kt with gusts up to
20 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 180805
cwfbox
expires:202604182100;;570177

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

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


anz250-182100-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
404 am edt sat apr 18 2026

.today...ne winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: n 3 ft at 4 seconds and se 2 ft at 8 seconds.
areas of fog. vsby 1 nm or less, increasing to 1 to 3 nm this
afternoon. 
.tonight...e winds 5 to 10 kt, becoming se after midnight. seas
3 to 5 ft. wave detail: e 4 ft at 7 seconds and n 1 foot at
3 seconds. areas of fog in the evening, then patchy fog after
midnight. vsby 1 nm or less, increasing to 1 to 3 nm after
midnight. 
.sun...s winds 5 to 10 kt, becoming w 10 to 15 kt with gusts up
to 20 kt in the afternoon. seas 3 to 5 ft. wave detail: e 4 ft at
8 seconds and s 1 foot at 8 seconds. patchy fog. a chance of rain
in the morning, then rain in the afternoon. vsby 1 to 3 nm,
decreasing to 1 nm or less in the afternoon. 
.sun night...nw winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 4 ft. wave detail: se 4 ft at 7 seconds and nw 3 ft at
4 seconds. rain, mainly in the evening. patchy fog 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: 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 3 ft. wave detail: n 3 ft at 4 seconds and e
3 ft at 8 seconds. 
.tue through wed night...w winds 15 to 20 kt. seas 2 to 4 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 180627
cwfgyx
expires:202604182030;;564975

coastal waters forecast
national weather service gray me
227 am edt sat apr 18 2026

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


anz154-182030-
coastal waters from cape elizabeth, me to merrimack river, ma out
25 nm-
227 am edt sat apr 18 2026

.today...e winds 10 to 15 kt. seas 2 to 3 ft. wave detail: e 2 ft at
5 seconds and se 2 ft at 8 seconds. areas of dense fog this morning
with vsby 1 nm or less. 
.tonight...e winds 5 to 10 kt, becoming se after midnight. seas 2 to
3 ft. wave detail: e 3 ft at 6 seconds. patchy fog after midnight
with vsby 1 nm or less. 
.sun...s winds 5 to 10 kt, becoming w 10 to 15 kt with gusts up to
20 kt in the afternoon. seas 3 to 4 ft. wave detail: e 4 ft at
7 seconds. areas of dense fog in the morning. rain. vsby 1 nm or
less in the morning. 
.sun night...w winds 10 to 15 kt with gusts up to 25 kt. seas 3 to
5 ft. wave detail: e 4 ft at 8 seconds and nw 3 ft at 3 seconds.
rain 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
7 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: w 2 ft at 3 seconds and e 2 ft at 7 seconds. 
.tue...n winds 10 to 15 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 30 kt. seas 3 to
5 ft. 
.wed...sw winds 10 to 15 kt. gusts up to 25 kt in the morning. seas
2 to 4 ft. 
.wed night...w winds around 10 kt, becoming nw after midnight. seas
around 2 ft.  

$$