fzus51 kbox 302005
cwfbox
expires:202605010900;;799282

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

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


anz235-010900-
rhode island sound-
404 pm edt thu apr 30 2026

.tonight...w winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se
3 ft at 10 seconds and se 2 ft at 5 seconds. patchy fog after
midnight. 
.fri...nw winds around 10 kt, becoming sw in the afternoon. seas
2 to 4 ft. wave detail: se 3 ft at 10 seconds and w 2 ft at
3 seconds. 
.fri night...sw winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. seas 2 to 4 ft. wave detail: se 3 ft at 9 seconds
and sw 2 ft at 4 seconds. 
.sat...sw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: sw 2 ft
at 5 seconds and se 2 ft at 9 seconds. a chance of showers in the
afternoon. 
.sat night...s winds 5 to 10 kt, becoming n after midnight. seas
2 to 3 ft. wave detail: se 3 ft at 5 seconds and se 2 ft at
9 seconds. a chance of showers in the evening, then showers
likely after midnight. 
.sun...n winds 10 to 15 kt, becoming nw in the afternoon. seas
2 to 3 ft. wave detail: nw 2 ft at 4 seconds and se 2 ft at
9 seconds. showers likely, mainly in the morning. 
.sun night...w winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 3 ft. 
.mon...sw winds 20 to 25 kt. seas 2 to 4 ft. 
.mon night...sw winds 20 to 25 kt with gusts up to 30 kt. seas
3 to 5 ft. 
.tue and tue night...sw 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 kbox 302005
cwfbox
expires:202605010900;;799285

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

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


anz236-010900-
narragansett bay-
404 pm edt thu apr 30 2026

.tonight...sw winds around 5 kt, becoming nw after midnight.
waves around 2 ft. 
.fri...nw winds 5 to 10 kt, becoming w in the afternoon. waves
around 2 ft. 
.fri night...sw winds 5 to 10 kt. waves around 2 ft. 
.sat...sw winds 5 to 10 kt. waves around 2 ft. a chance of
showers in the afternoon. 
.sat night and sun...nw winds 5 to 10 kt. waves around 2 ft. a
chance of showers. 
.sun night...w winds 5 to 10 kt. waves around 2 ft. 
.mon through tue...sw winds 15 to 20 kt with gusts up to 25 kt.
waves 2 to 4 ft. 
.tue night...sw winds 20 to 25 kt. waves 3 to 5 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 302005
cwfbox
expires:202605010900;;799283

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

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


anz237-010900-
block island sound-
404 pm edt thu apr 30 2026

.tonight...w winds 5 to 10 kt. seas 2 to 4 ft. wave detail: se
4 ft at 10 seconds and ne 1 foot at 6 seconds. 
.fri...nw winds around 10 kt, becoming sw in the afternoon. seas
2 to 4 ft. wave detail: se 3 ft at 10 seconds and w 2 ft at
3 seconds. 
.fri night...sw winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. seas 2 to 3 ft. wave detail: se 3 ft at 9 seconds
and sw 2 ft at 3 seconds. 
.sat...sw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se 2 ft
at 9 seconds and sw 1 foot at 5 seconds. a chance of showers in
the afternoon. 
.sat night...s winds 5 to 10 kt, becoming n after midnight. seas
2 to 3 ft. wave detail: se 2 ft at 9 seconds and s 1 foot at
4 seconds. a chance of showers in the evening, then showers
likely after midnight. 
.sun...nw winds around 10 kt, becoming w in the afternoon. seas
2 to 3 ft. wave detail: nw 2 ft at 3 seconds and se 2 ft at
9 seconds. a chance of showers.
.sun night...w winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. seas 2 to 3 ft. 
.mon...sw winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
4 ft. 
.mon night...sw winds around 20 kt with gusts up to 30 kt. seas
3 to 5 ft. 
.tue and tue night...sw 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 kbox 302005
cwfbox
expires:202605010900;;799277

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

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


anz255-010900-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
404 pm edt thu apr 30 2026

...small craft advisory in effect through late friday night...

.tonight...w winds 5 to 10 kt. seas 3 to 5 ft. wave detail: se
5 ft at 10 seconds and s 3 ft at 9 seconds. patchy fog. a slight
chance of showers this evening. vsby 1 nm or less, increasing to
1 to 3 nm after midnight. 
.fri...w winds around 10 kt. seas 3 to 5 ft. wave detail: se 5 ft
at 10 seconds and sw 3 ft at 9 seconds. 
.fri night...w winds 10 to 15 kt, becoming sw 5 to 10 kt after
midnight. seas 3 to 5 ft. wave detail: se 4 ft at 9 seconds and w
2 ft at 4 seconds. 
.sat...s winds 5 to 10 kt. seas 3 to 4 ft. wave detail: e 3 ft at
9 seconds and sw 2 ft at 4 seconds. 
.sat night...s winds 5 to 10 kt, becoming ne after midnight. seas
3 to 4 ft. wave detail: e 3 ft at 9 seconds and s 2 ft at
6 seconds. a chance of showers in the evening, then showers
likely after midnight. 
.sun...n winds 10 to 15 kt, becoming nw with gusts up to 20 kt in
the afternoon. seas 3 to 4 ft. wave detail: n 3 ft at 4 seconds
and e 3 ft at 9 seconds. showers likely, mainly in the morning. 
.sun night...w winds 10 to 15 kt with gusts up to 20 kt. seas
3 to 5 ft. 
.mon...sw winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. 
.mon night...sw winds 20 to 25 kt with gusts up to 30 kt. seas
4 to 6 ft. 
.tue and tue night...s winds 20 to 25 kt with gusts up to 30 kt.
seas 5 to 7 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.

$$