fzus51 kbox 181405
cwfbox
expires:202509190300;;194073

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 am edt thu sep 18 2025

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


anz235-190300-
rhode island sound-
1005 am edt thu sep 18 2025

.this afternoon...n winds 5 to 10 kt, becoming nw. seas 2 to
3 ft. wave detail: s 3 ft at 7 seconds and ne 1 foot at
3 seconds. isolated showers with patchy drizzle, then patchy
drizzle. patchy fog. vsby 1 nm or less. 
.tonight...w winds 5 to 10 kt. seas 2 to 3 ft. wave detail: s
3 ft at 7 seconds and w 2 ft at 3 seconds. 
.fri...nw winds 5 to 10 kt, becoming w in the afternoon. seas
2 to 3 ft. wave detail: s 3 ft at 7 seconds and w 1 foot at
3 seconds. 
.fri night...ne winds 10 to 15 kt, increasing to 15 to 20 kt
after midnight. seas 2 to 3 ft. wave detail: ne 3 ft at 3 seconds
and s 2 ft at 7 seconds. 
.sat and sat night...e winds 15 to 20 kt. seas 2 to 3 ft. wave
detail: ne 3 ft at 4 seconds and se 2 ft at 8 seconds. 
.sun through mon night...sw winds 10 to 15 kt. seas 2 to 3 ft.
wave detail: se 3 ft at 12 seconds and se 2 ft at 4 seconds.  

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 181405
cwfbox
expires:202509190300;;194076

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 am edt thu sep 18 2025

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


anz236-190300-
narragansett bay-
1005 am edt thu sep 18 2025

.this afternoon...n winds 5 to 10 kt, becoming w. waves around
2 ft. patchy drizzle. patchy fog. 
.tonight...sw winds 5 to 10 kt, becoming w after midnight. waves
around 2 ft. 
.fri...nw winds 5 to 10 kt. waves around 2 ft. 
.fri night...n winds 5 to 10 kt, increasing to 10 to 15 kt after
midnight. waves around 2 ft. 
.sat and sat night...e winds 10 to 15 kt. waves around 2 ft. 
.sun through mon night...sw winds 5 to 10 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 181405
cwfbox
expires:202509190300;;194074

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 am edt thu sep 18 2025

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


anz237-190300-
block island sound-
1005 am edt thu sep 18 2025

.this afternoon...n winds 5 to 10 kt, becoming w. seas 2 to 3 ft.
wave detail: s 3 ft at 7 seconds and ne 1 foot at 3 seconds.
patchy drizzle. patchy fog. 
.tonight...w winds 5 to 10 kt. seas 2 to 3 ft. wave detail: s
3 ft at 6 seconds and w 1 foot at 2 seconds. 
.fri...w winds 5 to 10 kt. seas 2 to 3 ft. wave detail: s 2 ft at
6 seconds and w 1 foot at 3 seconds. 
.fri night...n winds 10 to 15 kt, becoming ne 15 to 20 kt after
midnight. seas 2 to 3 ft. wave detail: ne 3 ft at 4 seconds and s
2 ft at 6 seconds. 
.sat and sat night...e winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. wave detail: ne 3 ft at 5 seconds and se 2 ft at
8 seconds. 
.sun through mon night...sw winds 10 to 15 kt. seas 2 to 3 ft.
wave detail: se 3 ft at 12 seconds and e 2 ft at 4 seconds.  

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 181405
cwfbox
expires:202509190300;;194068

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1005 am edt thu sep 18 2025

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


anz255-190300-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
1005 am edt thu sep 18 2025

.this afternoon...nw winds around 5 kt. seas 2 to 4 ft. wave
detail: s 3 ft at 7 seconds. patchy fog. patchy drizzle. vsby
1 nm or less. 
.tonight...w winds 5 to 10 kt. seas 2 to 3 ft. wave detail: s
3 ft at 7 seconds and w 2 ft at 4 seconds. patchy fog. vsby 1 nm
or less. 
.fri...nw winds 5 to 10 kt. seas 2 to 3 ft. wave detail: s 3 ft
at 7 seconds and w 2 ft at 4 seconds. patchy fog in the morning
with vsby 1 nm or less. 
.fri night...ne winds 5 to 10 kt, increasing to 15 to 20 kt after
midnight. seas 2 to 4 ft. wave detail: ne 3 ft at 4 seconds and s
2 ft at 7 seconds. 
.sat and sat night...e winds 15 to 20 kt. seas 2 to 4 ft. wave
detail: n 3 ft at 4 seconds and se 2 ft at 8 seconds. 
.sun through mon night...sw winds 10 to 15 kt. seas 2 to 4 ft.
wave detail: se 4 ft at 12 seconds and sw 2 ft at 3 seconds.  

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.

$$