fzus51 kbox 180503
cwfbox
expires:202509181800;;171692

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

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


anz235-181800-
rhode island sound-
103 am edt thu sep 18 2025

.rest of tonight...ne winds 5 to 10 kt. seas 2 to 4 ft. wave
detail: e 4 ft at 8 seconds and s 1 foot at 7 seconds. patchy
fog. a chance of showers. vsby 1 nm or less. 
.thu...n winds 5 to 10 kt, becoming w in the afternoon. seas 2 to
3 ft. wave detail: s 3 ft at 7 seconds. 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, becoming w 10 to 15 kt after
midnight. seas 2 to 3 ft. wave detail: se 3 ft at 7 seconds and
sw 2 ft at 4 seconds. 
.fri...w 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, increasing to 15 to 20 kt after
midnight. seas 2 to 3 ft. wave detail: ne 3 ft at 5 seconds and w
2 ft at 6 seconds. 
.sat and sat night...se winds 15 to 20 kt. seas 2 to 3 ft. wave
detail: ne 3 ft at 5 seconds and sw 1 foot at 5 seconds. 
.sun through mon night...sw winds 5 to 10 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 180503
cwfbox
expires:202509181800;;171695

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

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


anz236-181800-
narragansett bay-
103 am edt thu sep 18 2025

.rest of tonight...ne winds 5 to 10 kt. waves around 2 ft. patchy
fog. a chance of showers with isolated tstms. vsby 1 to 3 nm. 
.thu...n winds 5 to 10 kt, becoming w 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. patchy fog
after midnight. 
.fri...nw winds around 10 kt. waves around 2 ft. 
.fri night...n winds 10 to 15 kt. waves around 2 ft. 
.sat and sat night...se winds 10 to 15 kt. waves around 2 ft. 
.sun through mon night...sw winds 5 to 10 kt. waves 2 to 3 ft.  

winds and waves 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 180503
cwfbox
expires:202509181800;;171693

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

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


anz237-181800-
block island sound-
103 am edt thu sep 18 2025

.rest of tonight...ne winds 5 to 10 kt. seas 3 to 4 ft. wave
detail: e 4 ft at 8 seconds and s 1 foot at 7 seconds. patchy
fog. a chance of showers. vsby 1 nm or less. 
.thu...n winds 5 to 10 kt, becoming w in the afternoon. seas 2 to
3 ft. wave detail: s 3 ft at 7 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...w 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. gusts up to 20 kt after
midnight. seas 2 to 3 ft. wave detail: ne 3 ft at 6 seconds and w
2 ft at 4 seconds. 
.sat and sat night...se winds 15 to 20 kt. seas 2 to 3 ft. wave
detail: ne 3 ft at 5 seconds and sw 1 foot at 5 seconds. 
.sun through mon night...sw winds 5 to 10 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 180503
cwfbox
expires:202509181800;;171687

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

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


anz255-181800-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
103 am edt thu sep 18 2025

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

$$