fzus51 kbox 170805
cwfbox
expires:202603172100;;833158

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt tue mar 17 2026

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


anz235-172100-
rhode island sound-
405 am edt tue mar 17 2026

...storm warning in effect until 8 am edt this morning...

.today...w winds 25 to 30 kt, diminishing to 20 to 25 kt this
afternoon. seas 9 to 13 ft, subsiding to 8 to 11 ft this
afternoon. wave detail: s 13 ft at 11 seconds and w 3 ft at
5 seconds, becoming s 11 ft at 11 seconds and w 4 ft at
5 seconds. 
.tonight...w winds 20 to 25 kt, becoming nw 15 to 20 kt after
midnight. seas 6 to 9 ft. wave detail: s 9 ft at 11 seconds and w
3 ft at 5 seconds. 
.wed...nw winds 10 to 15 kt with gusts up to 20 kt, becoming w
5 to 10 kt in the afternoon. seas 4 to 6 ft. wave detail: s 6 ft
at 10 seconds and w 2 ft at 4 seconds. 
.wed night...s winds 5 to 10 kt. seas 3 to 4 ft. wave detail: s
4 ft at 10 seconds. 
.thu and thu night...sw winds 5 to 10 kt. seas 2 to 4 ft. wave
detail: se 4 ft at 9 seconds. 
.fri...sw winds 10 to 15 kt. seas 2 to 4 ft. wave detail: se 3 ft
at 8 seconds and sw 2 ft at 3 seconds. 
.fri night through sat night...s winds 20 to 25 kt. seas 2 to
4 ft. a chance of rain.  

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 170805
cwfbox
expires:202603172100;;833161

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt tue mar 17 2026

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


anz236-172100-
narragansett bay-
405 am edt tue mar 17 2026

...storm warning in effect until 5 am edt early this morning...

.today...w winds 20 to 25 kt, diminishing to 15 to 20 kt this
afternoon. gusts up to 35 kt. waves 5 to 7 ft. at the bay
entrance, waves 7 to 10 ft, subsiding to 5 to 7 ft this
afternoon. scattered sprinkles this afternoon. 
.tonight...w winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. gusts up to 25 kt. waves 3 to 5 ft, subsiding to 2 to
3 ft after midnight. at the bay entrance, waves 4 to 6 ft. 
.wed...nw winds 5 to 10 kt, becoming sw in the afternoon. waves
2 to 3 ft. 
.wed night...s winds 5 to 10 kt, diminishing to around 5 kt after
midnight. waves 2 to 3 ft. 
.thu and thu night...sw winds 5 to 10 kt. waves 2 to 3 ft. 
.fri...sw winds 10 to 15 kt. waves around 2 ft. 
.fri night through sat night...sw winds 15 to 20 kt. waves 2 to
3 ft. a chance of rain.  

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 170805
cwfbox
expires:202603172100;;833159

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt tue mar 17 2026

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


anz237-172100-
block island sound-
405 am edt tue mar 17 2026

...storm warning in effect until 8 am edt this morning...

.today...w winds 20 to 25 kt with gusts up to 35 kt. seas 9 to
12 ft, subsiding to 7 to 10 ft this afternoon. wave detail: s
12 ft at 11 seconds and w 4 ft at 5 seconds, becoming s 9 ft at
11 seconds and w 5 ft at 5 seconds.
.tonight...w winds 15 to 20 kt with gusts up to 25 kt. seas 6 to
9 ft. wave detail: s 8 ft at 11 seconds and w 4 ft at 5 seconds. 
.wed...nw winds 10 to 15 kt with gusts up to 20 kt, becoming w
5 to 10 kt in the afternoon. seas 4 to 6 ft. wave detail: se 6 ft
at 10 seconds and w 2 ft at 4 seconds. 
.wed night...s winds 5 to 10 kt. seas 3 to 4 ft. wave detail: se
4 ft at 10 seconds. 
.thu...se winds 5 to 10 kt. seas 3 to 4 ft. wave detail: se 4 ft
at 9 seconds. 
.thu night...s winds 5 to 10 kt. seas 2 to 4 ft. wave detail: se
4 ft at 9 seconds. 
.fri...sw winds 5 to 10 kt. seas 2 to 3 ft. 
.fri night through sat night...s winds 20 to 25 kt. seas 2 to
4 ft. a chance of rain.  

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 170805
cwfbox
expires:202603172100;;833153

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
405 am edt tue mar 17 2026

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


anz255-172100-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
405 am edt tue mar 17 2026

...storm warning in effect until 8 am edt this morning...

.today...w winds 25 to 30 kt with gusts up to 40 kt. seas 11 to
15 ft, subsiding to 9 to 13 ft this afternoon. wave detail: s
15 ft at 11 seconds and w 2 ft at 5 seconds, becoming sw 13 ft at
11 seconds and w 2 ft at 5 seconds. a chance of rain this
morning. 
.tonight...w winds 20 to 25 kt with gusts up to 30 kt. seas 9 to
12 ft, subsiding to 7 to 10 ft after midnight. wave detail: sw
12 ft at 11 seconds and w 3 ft at 6 seconds, becoming sw 10 ft at
10 seconds and nw 2 ft at 5 seconds. 
.wed...nw winds 15 to 20 kt, becoming w 5 to 10 kt in the
afternoon. seas 5 to 8 ft, subsiding to 4 to 6 ft in the
afternoon. wave detail: s 8 ft at 10 seconds and nw 3 ft at
5 seconds, becoming s 6 ft at 10 seconds and w 1 foot at
5 seconds. 
.wed night...s winds 5 to 10 kt. seas 3 to 5 ft. wave detail: s
5 ft at 10 seconds and w 1 foot at 5 seconds. 
.thu...se winds 5 to 10 kt. seas 3 to 4 ft. wave detail: s 4 ft
at 9 seconds. 
.thu night...s winds 5 to 10 kt. seas 3 to 4 ft. wave detail: se
4 ft at 9 seconds. 
.fri and fri night...sw winds 5 to 10 kt, increasing to 15 to
20 kt. seas 2 to 4 ft. 
.sat and sat night...w winds 15 to 20 kt, becoming sw 25 to
30 kt. seas 3 to 5 ft. a chance of rain.  

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.

$$