fzus51 kbox 301404
cwfbox
expires:202605010300;;784573

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu apr 30 2026

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


anz230-010300-
boston harbor-
1004 am edt thu apr 30 2026

.this afternoon...se winds around 5 kt. waves 1 foot or less.
patchy fog. numerous showers this morning. 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...w winds 5 to 10 kt. gusts up to 20 kt in the morning.
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 301404
cwfbox
expires:202605010300;;784562

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1004 am edt thu apr 30 2026

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


anz250-010300-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
1004 am edt thu apr 30 2026

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

.this afternoon...s winds around 5 kt. seas 5 to 7 ft. wave
detail: e 6 ft at 10 seconds and e 2 ft at 6 seconds. patchy fog.
scattered showers. vsby 1 nm or less. 
.tonight...w winds 5 to 10 kt with gusts up to 20 kt. seas 4 to
6 ft. wave detail: e 6 ft at 10 seconds and ne 2 ft at 6 seconds.
patchy fog. vsby 1 nm or less, increasing to 1 to 3 nm after
midnight. 
.fri...nw winds around 10 kt with gusts up to 20 kt, becoming sw
in the afternoon. seas 4 to 5 ft. wave detail: e 5 ft at
10 seconds and sw 2 ft at 3 seconds. 
.fri night...sw winds 5 to 10 kt, becoming w after midnight. 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.

$$