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fzus51 kbox 302304
cwfbox
expires:202605011200;;805990

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
704 pm edt thu apr 30 2026

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


anz230-011200-
boston harbor-
704 pm edt thu apr 30 2026

.tonight...sw winds around 5 kt, becoming nw after midnight.
waves 1 foot or less, except 2 to 4 ft at the outer harbor
entrance. 
.fri...nw winds 5 to 10 kt. waves 1 foot or less. 
.fri night...w winds 5 to 10 kt, becoming sw after midnight.
waves 1 foot or less. 
.sat...sw winds around 5 kt, becoming s in the afternoon. waves
1 foot or less. a chance of showers in the afternoon. 
.sat night...s winds 5 to 10 kt, becoming w after midnight. waves
1 foot or less. a chance of showers. 
.sun...n winds 5 to 10 kt. waves 1 foot or less. a chance of
showers. 
.sun night...w winds around 10 kt. waves around 2 ft. 
.mon through tue night...s winds 20 to 25 kt with gusts up to
30 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 302304
cwfbox
expires:202605011200;;805981

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
704 pm edt thu apr 30 2026

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


anz231-011200-
cape cod bay-
704 pm edt thu apr 30 2026

.tonight...w winds around 5 kt, increasing to 5 to 10 kt after
midnight. seas 2 to 3 ft. wave detail: ne 2 ft at 11 seconds and
ne 1 foot at 5 seconds. 
.fri...nw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: nw
1 foot at 3 seconds and ne 1 foot at 5 seconds. 
.fri night...sw winds around 5 kt. seas around 2 ft. wave detail:
e 2 ft at 10 seconds and sw 1 foot at 2 seconds. 
.sat...s winds 5 to 10 kt. seas around 2 ft. wave detail: sw
1 foot at 2 seconds and e 1 foot at 4 seconds. 
.sat night...s winds 5 to 10 kt. seas around 2 ft. wave detail: s
1 foot at 3 seconds and s 1 foot at 8 seconds. a chance of
showers in the evening, then showers likely after midnight. 
.sun...n winds 5 to 10 kt. seas around 2 ft. wave detail: n 2 ft
at 3 seconds and s 1 foot at 9 seconds. showers likely, mainly in
the morning. 
.sun night...w winds 5 to 10 kt. seas around 2 ft. 
.mon through tue night...sw winds 15 to 20 kt with gusts up to
30 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 kbox 302304
cwfbox
expires:202605011200;;805979

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
704 pm edt thu apr 30 2026

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


anz250-011200-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
704 pm edt thu apr 30 2026

...small craft advisory in effect through friday afternoon...

.tonight...w winds around 5 kt, increasing to 5 to 10 kt after
midnight. seas 4 to 6 ft. wave detail: e 6 ft at 10 seconds and
ne 3 ft at 6 seconds. patchy fog. vsby 1 to 3 nm. 
.fri...w winds 5 to 10 kt. seas 3 to 5 ft. wave detail: e 5 ft at
10 seconds and w 1 foot at 2 seconds. 
.fri night...sw winds 5 to 10 kt. seas 3 to 4 ft. wave detail: e
4 ft at 9 seconds and w 1 foot at 2 seconds. 
.sat...s winds 5 to 10 kt. seas 3 to 4 ft. wave detail: e 4 ft at
9 seconds and sw 1 foot at 2 seconds. 
.sat night...s winds 5 to 10 kt. seas 3 to 4 ft. wave detail: e
4 ft at 9 seconds and s 1 foot at 4 seconds. a chance of showers.
.sun...n winds around 10 kt. seas 3 to 4 ft. wave detail: e 4 ft
at 9 seconds and n 3 ft at 3 seconds. showers likely, mainly in
the morning. 
.sun night...w winds 10 to 15 kt with gusts up to 20 kt. seas
around 3 ft. 
.mon through tue...s winds 20 to 25 kt with gusts up to 30 kt.
seas 3 to 4 ft. 
.tue night...s winds 20 to 25 kt with gusts up to 30 kt. seas
4 to 6 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 302103
cwfgyx
expires:202605011000;;801627

coastal waters forecast
national weather service gray me
502 pm edt thu apr 30 2026

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


anz154-011000-
coastal waters from cape elizabeth, me to merrimack river, ma out
25 nm-
502 pm edt thu apr 30 2026

...small craft advisory in effect through friday evening...

.tonight...w winds around 5 kt, increasing to 5 to 10 kt after
midnight. seas 5 to 6 ft. wave detail: e 6 ft at 10 seconds. a
slight chance of showers early this evening. patchy fog. vsby 1 to
3 nm. 
.fri...w winds 5 to 10 kt. seas 4 to 5 ft. wave detail: e 5 ft at
10 seconds. 
.fri night...w winds 5 to 10 kt, becoming n after midnight. seas
4 to 5 ft. wave detail: e 5 ft at 9 seconds. 
.sat...e winds around 5 kt, becoming s in the afternoon. seas 3 to
4 ft. wave detail: e 4 ft at 9 seconds. a chance of showers in the
afternoon. 
.sat night...s winds 5 to 10 kt. seas 3 to 4 ft. wave detail: se
4 ft at 9 seconds. a chance of showers after midnight. 
.sun...n winds 5 to 10 kt. seas 3 to 4 ft. wave detail: e 4 ft at
9 seconds. a chance of showers. 
.sun night...w winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
4 ft. 
.mon...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 4 to 6 ft. 
.mon night...s winds 15 to 20 kt with gusts up to 30 kt. seas 5 to
7 ft. 
.tue...s winds 15 to 20 kt, increasing to 25 to 30 kt in the
afternoon. gusts up to 40 kt. seas 5 to 7 ft. 
.tue night...s winds 25 to 30 kt with gusts up to 40 kt. seas 5 to
8 ft.  

$$
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