fzus51 kbox 171703
cwfbox
expires:202509180600;;143119

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt wed sep 17 2025

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


anz235-180600-
rhode island sound-
103 pm edt wed sep 17 2025

.this afternoon...ne winds 10 to 15 kt with gusts up to 20 kt.
seas 3 to 4 ft. wave detail: e 4 ft at 8 seconds and s 1 foot at
7 seconds. showers.
.tonight...ne winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. seas 2 to 4 ft. wave
detail: e 4 ft at 8 seconds and s 1 foot at 7 seconds. a chance
of showers. patchy fog after midnight with vsby 1 nm or less. 
.thu...ne winds around 5 kt, becoming w in the afternoon. seas
2 to 3 ft. wave detail: e 3 ft at 7 seconds and s 1 foot at
6 seconds. patchy fog in the morning. a chance of showers in the
morning with vsby 1 nm or less. 
.thu night...w winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se
3 ft at 7 seconds and sw 2 ft at 5 seconds. 
.fri...nw winds around 10 kt. seas 2 to 3 ft. wave detail: w 2 ft
at 3 seconds and se 2 ft at 7 seconds. 
.fri night...n winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. seas 2 to 3 ft. wave detail: ne 3 ft at 8 seconds and
sw 2 ft at 6 seconds. 
.sat through sun night...s winds 15 to 20 kt. seas 2 to 3 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 171703
cwfbox
expires:202509180600;;143122

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt wed sep 17 2025

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


anz236-180600-
narragansett bay-
103 pm edt wed sep 17 2025

.this afternoon...e winds 5 to 10 kt with gusts up to 20 kt.
waves around 2 ft. showers likely. 
.tonight...ne winds 5 to 10 kt. gusts up to 20 kt in the evening.
waves around 2 ft. a chance of showers. patchy fog after midnight
with vsby 1 nm or less. 
.thu...n winds around 5 kt, becoming sw around 5 kt in the
afternoon. waves around 2 ft. patchy fog in the morning. a chance
of showers in the morning with vsby 1 nm or less. 
.thu night...sw winds 5 to 10 kt. waves around 2 ft. 
.fri and fri night...n winds 10 to 15 kt with gusts up to 20 kt.
waves around 2 ft. 
.sat through sun night...s winds 10 to 15 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 171703
cwfbox
expires:202509180600;;143120

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt wed sep 17 2025

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


anz237-180600-
block island sound-
103 pm edt wed sep 17 2025

.this afternoon...ne winds around 15 kt with gusts up to 20 kt.
seas 3 to 4 ft. wave detail: se 4 ft at 7 seconds. showers likely
with isolated tstms. 
.tonight...ne winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. seas 3 to 4 ft. wave
detail: se 4 ft at 7 seconds. a chance of showers. patchy fog
after midnight. vsby 1 to 3 nm, decreasing to 1 nm or less after
midnight. 
.thu...ne winds around 5 kt, becoming w in the afternoon. seas
2 to 3 ft. wave detail: e 3 ft at 7 seconds and s 1 foot at
6 seconds. patchy fog in the morning. a chance of showers in the
morning with vsby 1 nm or less. 
.thu night...w winds 5 to 10 kt. seas 2 to 3 ft. wave detail: s
3 ft at 6 seconds. 
.fri...nw winds around 10 kt. seas 2 to 3 ft. wave detail: w 2 ft
at 4 seconds and se 2 ft at 7 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 5 seconds and w
2 ft at 5 seconds. 
.sat through sun night...s winds 15 to 20 kt. seas 2 to 3 ft.  

winds and seas higher in and near tstms.

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 171703
cwfbox
expires:202509180600;;143114

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
103 pm edt wed sep 17 2025

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


anz255-180600-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
103 pm edt wed sep 17 2025

.this afternoon...e winds 10 to 15 kt with gusts up to 20 kt.
seas 3 to 4 ft. wave detail: e 4 ft at 8 seconds and s 1 foot at
7 seconds. showers likely. 
.tonight...e winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. seas 3 to 4 ft. wave
detail: e 4 ft at 8 seconds and s 1 foot at 7 seconds. a chance
of showers. patchy fog after midnight with vsby 1 nm or less. 
.thu...e winds around 5 kt, becoming w in the afternoon. seas
2 to 3 ft. wave detail: s 3 ft at 7 seconds. patchy fog. a chance
of showers in the morning with vsby 1 nm or less. 
.thu night...w winds 5 to 10 kt, increasing to 10 to 15 kt after
midnight. seas 2 to 3 ft. wave detail: se 3 ft at 7 seconds and
sw 2 ft at 5 seconds. 
.fri and fri night...ne winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. wave detail: ne 4 ft at 5 seconds and w 2 ft at
4 seconds. 
.sat through sun night...se winds 15 to 20 kt with gusts up to
25 kt. seas 2 to 4 ft. wave detail: ne 4 ft at 5 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.

$$