fzus51 kbox 201403
cwfbox
expires:202605210300;;348960

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt wed may 20 2026

coastal waters from the merrimack river ma to watch hill ri out
to 60 nm


anz235-210300-
rhode island sound-
1003 am edt wed may 20 2026

...small craft advisory in effect until 8 pm edt this evening...

.this afternoon...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 5 ft. wave detail: sw 5 ft at 7 seconds and se 1 foot
at 15 seconds. a chance of showers and tstms. 
.tonight...w winds 10 to 15 kt with gusts up to 20 kt, becoming n
after midnight. seas 3 to 4 ft. wave detail: sw 4 ft at 7 seconds
and se 1 foot at 15 seconds. a chance of showers and tstms in the
evening, then showers likely after midnight. patchy fog in the
evening. 
.thu...ne winds 10 to 15 kt, becoming e in the afternoon. seas
2 to 4 ft. wave detail: s 3 ft at 7 seconds and ne 2 ft at
12 seconds. a chance of showers in the morning. 
.thu night...s winds 5 to 10 kt, becoming nw after midnight. seas
2 to 3 ft. wave detail: se 2 ft at 7 seconds. 
.fri and fri night...se winds 10 to 15 kt. seas around 2 ft. wave
detail: s 2 ft at 6 seconds and ne 2 ft at 8 seconds. 
.sat...e winds 10 to 15 kt. seas 2 to 3 ft. wave detail: se 3 ft
at 7 seconds. a chance of showers. 
.sat night...e winds 15 to 20 kt with gusts up to 25 kt. seas
2 to 3 ft. showers likely. 
.sun and sun night...e winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 5 ft. showers likely.  

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 201403
cwfbox
expires:202605210300;;348963

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt wed may 20 2026

coastal waters from the merrimack river ma to watch hill ri out
to 60 nm


anz236-210300-
narragansett bay-
1003 am edt wed may 20 2026

.this afternoon...sw winds 10 to 15 kt with gusts up to 25 kt.
waves 2 to 3 ft. a chance of showers and tstms. 
.tonight...w winds 5 to 10 kt with gusts up to 20 kt, becoming n
after midnight. waves 2 to 3 ft. a chance of showers. a chance of
tstms in the evening. 
.thu...n winds around 10 kt, becoming e in the afternoon. waves
around 2 ft. 
.thu night...s winds 5 to 10 kt, becoming n after midnight. waves
around 2 ft. 
.fri and fri night...s winds 5 to 10 kt. waves around 2 ft. 
.sat...e winds 5 to 10 kt. waves around 2 ft. a chance of
showers. 
.sat night through sun night...e winds 10 to 15 kt with gusts up
to 20 kt. waves 2 to 3 ft. showers likely.  

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 201403
cwfbox
expires:202605210300;;348961

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt wed may 20 2026

coastal waters from the merrimack river ma to watch hill ri out
to 60 nm


anz237-210300-
block island sound-
1003 am edt wed may 20 2026

...small craft advisory in effect until 8 pm edt this evening...

.this afternoon...sw winds 10 to 15 kt with gusts up to 25 kt.
seas 3 to 4 ft. wave detail: sw 4 ft at 7 seconds and se 1 foot
at 10 seconds. a chance of showers and tstms. 
.tonight...w winds 10 to 15 kt with gusts up to 20 kt, becoming
nw 5 to 10 kt after midnight. seas 2 to 4 ft. wave detail: sw
4 ft at 7 seconds and se 1 foot at 12 seconds. a chance of
showers. a chance of tstms in the evening. patchy fog in the
evening. 
.thu...ne winds around 10 kt, becoming e in the afternoon. seas
2 to 3 ft. wave detail: s 3 ft at 7 seconds and e 2 ft at
9 seconds. a chance of showers in the morning. 
.thu night...s winds 5 to 10 kt, becoming ne after midnight. seas
around 2 ft. wave detail: se 2 ft at 7 seconds. 
.fri...ne winds 5 to 10 kt, becoming se in the afternoon. seas
around 2 ft. wave detail: s 2 ft at 6 seconds and e 2 ft at
7 seconds. 
.fri night...se winds 5 to 10 kt, diminishing to around 5 kt
after midnight. seas around 2 ft. wave detail: se 2 ft at
7 seconds. a chance of showers after midnight. 
.sat and sat night...e winds 10 to 15 kt, increasing to 15 to
20 kt. gusts up to 25 kt. seas 2 to 4 ft. showers likely. 
.sun and sun night...e winds 15 to 20 kt, diminishing to 10 to
15 kt. gusts up to 25 kt. seas 3 to 5 ft. showers likely.  

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 201403
cwfbox
expires:202605210300;;348955

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
1003 am edt wed may 20 2026

coastal waters from the merrimack river ma to watch hill ri out
to 60 nm


anz255-210300-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
1003 am edt wed may 20 2026

...small craft advisory in effect through late tonight...

.this afternoon...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 4 to 6 ft. wave detail: sw 5 ft at 7 seconds and se 1 foot
at 15 seconds. patchy fog. vsby 1 nm or less. 
.tonight...w winds 15 to 20 kt with gusts up to 25 kt, becoming
nw 10 to 15 kt after midnight. seas 3 to 5 ft. wave detail: sw
5 ft at 7 seconds and se 1 foot at 15 seconds. patchy fog. a
chance of showers in the evening. showers likely after midnight.
vsby 1 to 3 nm. 
.thu...ne winds 10 to 15 kt. gusts up to 20 kt in the morning.
seas 2 to 4 ft. wave detail: sw 4 ft at 7 seconds and ne 3 ft at
11 seconds. a chance of showers in the morning. 
.thu night...e winds 5 to 10 kt, becoming n after midnight. seas
2 to 3 ft. wave detail: s 2 ft at 6 seconds and e 2 ft at
7 seconds. 
.fri and fri night...se winds 10 to 15 kt. seas around 2 ft. wave
detail: s 2 ft at 6 seconds and ne 2 ft at 8 seconds. 
.sat...e winds 10 to 15 kt. seas 2 to 3 ft. wave detail: se 2 ft
at 6 seconds and e 2 ft at 9 seconds. a chance of showers. 
.sat night...e winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 4 ft. showers likely. 
.sun and sun night...e winds 15 to 20 kt with gusts up to 25 kt.
seas 4 to 6 ft. showers likely.  

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.

$$