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fzus51 kbox 301704
cwfbox
expires:202605010600;;790353

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

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


anz230-010600-
boston harbor-
104 pm edt thu apr 30 2026

.this afternoon...s winds around 5 kt. waves 1 foot or less.
patchy fog. a chance of showers. vsby 1 to 3 nm. 
.tonight...sw winds around 5 kt, becoming nw after midnight.
waves 1 foot or less, then around 2 ft after midnight. 
.fri...nw winds 5 to 10 kt. waves around 2 ft. 
.fri night...w winds 5 to 10 kt. waves 1 foot or less. 
.sat...w winds around 5 kt, becoming s in the afternoon. waves
1 foot or less. a chance of rain in the afternoon. 
.sat night...s winds 5 to 10 kt, becoming w after midnight. waves
1 foot or less. a chance of rain. 
.sun...nw winds 5 to 10 kt. waves 1 foot or less. a chance of
rain. 
.sun night through mon night...sw winds 15 to 20 kt with gusts up
to 25 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 301704
cwfbox
expires:202605010600;;790344

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

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


anz231-010600-
cape cod bay-
104 pm edt thu apr 30 2026

.this afternoon...w winds around 5 kt. seas 2 to 3 ft. wave
detail: ne 2 ft at 11 seconds and e 1 foot at 5 seconds. patchy
fog. a chance of showers. vsby 1 nm or less. 
.tonight...w winds 5 to 10 kt. seas 2 to 3 ft. wave detail: ne
2 ft at 11 seconds and sw 1 foot at 2 seconds. patchy fog. 
.fri...nw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: nw
1 foot at 3 seconds and e 1 foot at 6 seconds. 
.fri night...w winds 5 to 10 kt. seas around 2 ft. wave detail:
sw 1 foot at 2 seconds and e 1 foot at 5 seconds. 
.sat...w winds around 5 kt, becoming s in the afternoon. seas
around 2 ft. wave detail: w 1 foot at 3 seconds and se 1 foot at
5 seconds. 
.sat night...s winds 5 to 10 kt, becoming sw after midnight. seas
around 2 ft. wave detail: s 1 foot at 2 seconds and se 1 foot at
6 seconds. a chance of rain in the evening, then rain likely
after midnight. 
.sun...n winds 5 to 10 kt. seas around 2 ft. a chance of rain. 
.sun night through mon night...sw winds 15 to 20 kt with gusts up
to 25 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 kbox 301704
cwfbox
expires:202605010600;;790342

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

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


anz250-010600-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
104 pm edt thu apr 30 2026

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

.this afternoon...w winds around 5 kt. seas 4 to 6 ft. wave
detail: e 6 ft at 10 seconds and e 2 ft at 6 seconds. patchy fog.
a chance of showers. vsby 1 nm or less. 
.tonight...sw winds around 5 kt, becoming w after midnight. seas
4 to 6 ft. wave detail: e 6 ft at 10 seconds and ne 2 ft at
6 seconds. 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 and sw 2 ft at 3 seconds. 
.fri night...w winds 5 to 10 kt. seas 3 to 4 ft. wave detail: e
4 ft at 9 seconds and w 2 ft at 3 seconds. 
.sat...w winds around 5 kt, becoming s in the afternoon. seas
3 to 4 ft. wave detail: e 4 ft at 9 seconds and w 1 foot at
4 seconds. 
.sat night...s winds around 10 kt, becoming sw after midnight.
seas 3 to 4 ft. wave detail: e 4 ft at 10 seconds and s 2 ft at
4 seconds. a chance of rain. 
.sun...n winds around 10 kt. seas around 3 ft. a chance of rain. 
.sun night through mon night...sw winds 15 to 20 kt with gusts up
to 30 kt. seas 3 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 301203
cwfgyx
expires:202605010100;;780900

coastal waters forecast
national weather service gray me
803 am edt thu apr 30 2026

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


anz154-010100-
coastal waters from cape elizabeth, me to merrimack river, ma out
25 nm-
803 am edt thu apr 30 2026

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

.today...se winds 10 to 15 kt with gusts up to 20 kt, diminishing to
5 to 10 kt late this morning and afternoon. seas 6 to 7 ft. wave
detail: e 7 ft at 10 seconds. patchy dense fog early this morning.
isolated tstms early this morning. rain until late afternoon, then a
chance of showers late. vsby 1 nm or less early this morning. 
.tonight...nw winds around 5 kt, increasing to 5 to 10 kt after
midnight. seas 6 to 7 ft. wave detail: e 6 ft at 10 seconds. a
chance of showers in the evening. 
.fri...w winds around 10 kt with gusts up to 20 kt, becoming sw in
the afternoon. seas 5 to 6 ft. wave detail: e 5 ft at 10 seconds. 
.fri night...w winds 5 to 10 kt. seas 4 to 5 ft. wave detail: e 5 ft
at 9 seconds. 
.sat...w winds around 5 kt, becoming s in the afternoon. seas around
4 ft. wave detail: e 4 ft at 9 seconds. 
.sat night...s winds 5 to 10 kt, becoming nw after midnight. seas
3 to 4 ft. wave detail: se 4 ft at 9 seconds. a chance of showers. 
.sun...n winds 5 to 10 kt. seas 3 to 4 ft. a chance of showers. 
.sun night...w winds around 10 kt with gusts up to 20 kt. seas
around 3 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 2 to 4 ft. 
.mon night...s winds 15 to 20 kt with gusts up to 30 kt. seas 3 to
4 ft.  

winds and seas higher in and near tstms.

$$
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