fzus51 kbox 170805
cwfbox
expires:202603172100;;833160

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


anz230-172100-
boston harbor-
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 30 kt. waves around 2 ft, except 3 to 5 ft
at the outer harbor entrance. scattered sprinkles this morning. 
.tonight...w winds 15 to 20 kt with gusts up to 25 kt. waves
around 2 ft. 
.wed...w winds 15 to 20 kt, diminishing to 5 to 10 kt in the
afternoon. waves around 2 ft in the morning, then 1 foot or less.
.wed night...s winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. waves around 2 ft in the evening, then 1 foot or less. 
.thu...s winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. waves 1 foot or less, then around 2 ft in the
afternoon. 
.thu night...s winds 10 to 15 kt. waves around 2 ft in the
evening, then 1 foot or less. 
.fri...sw winds 10 to 15 kt. waves around 2 ft. 
.fri night through sat night...sw winds 20 to 25 kt. waves around
2 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;;833149

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


anz250-172100-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
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, diminishing
to 20 to 25 kt with gusts up to 30 kt this afternoon. seas 8 to
11 ft, subsiding to 6 to 9 ft this afternoon. wave detail: se
11 ft at 10 seconds and sw 6 ft at 6 seconds, becoming se 8 ft at
11 seconds and w 5 ft at 5 seconds. a slight chance of rain this
morning. 
.tonight...w winds 20 to 25 kt with gusts up to 30 kt. seas 6 to
9 ft. wave detail: se 8 ft at 11 seconds and w 6 ft at 5 seconds.
.wed...w winds 15 to 20 kt with gusts up to 25 kt, diminishing to
5 to 10 kt in the afternoon. seas 5 to 7 ft. wave detail: se 6 ft
at 11 seconds and w 5 ft at 5 seconds. 
.wed night...s winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. seas 3 to 5 ft. wave detail: se 4 ft at 10 seconds and
w 2 ft at 4 seconds. 
.thu...s winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. seas 3 to 4 ft. wave detail: se 4 ft at 10 seconds and
sw 2 ft at 3 seconds.
.thu night...s winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas 3 to 4 ft. wave detail: se 3 ft at 9 seconds and s
2 ft at 3 seconds. 
.fri...sw winds 10 to 15 kt. seas 3 to 4 ft. 
.fri night through sat night...sw winds 20 to 25 kt with gusts up
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.

$$