fzus51 kbox 211104
cwfbox
expires:202603220000;;054422

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 am edt sat mar 21 2026

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


anz235-220000-
rhode island sound-
703 am edt sat mar 21 2026

.today...w winds 10 to 15 kt, becoming nw this afternoon. gusts
up to 20 kt. seas 4 to 6 ft. wave detail: s 6 ft at 8 seconds and
s 5 ft at 8 seconds. patchy fog this morning with vsby 1 to 3 nm.
.tonight...ne winds 5 to 10 kt, becoming se after midnight. seas
2 to 4 ft. wave detail: s 4 ft at 7 seconds and se 3 ft at
8 seconds. 
.sun...s winds 10 to 15 kt, becoming sw 15 to 20 kt in the
afternoon. seas 2 to 4 ft. wave detail: s 4 ft at 7 seconds.
patchy fog. a chance of rain in the afternoon. vsby 1 nm or less,
increasing to 1 to 3 nm in the afternoon. 
.sun night...w winds 10 to 15 kt, becoming n after midnight.
gusts up to 20 kt. seas 3 to 4 ft. wave detail: s 4 ft at
7 seconds. rain. patchy fog in the evening with vsby 1 nm or
less. 
.mon...n winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. wave detail: ne 5 ft at 7 seconds and sw 3 ft at 7 seconds.
rain, mainly in the morning. 
.mon night...n winds 15 to 20 kt. seas 2 to 4 ft. wave detail: n
4 ft at 6 seconds. 
.tue through wed night...w winds 15 to 20 kt with gusts up to
25 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 211104
cwfbox
expires:202603220000;;054425

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 am edt sat mar 21 2026

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


anz236-220000-
narragansett bay-
703 am edt sat mar 21 2026

.today...nw winds 5 to 10 kt with gusts up to 20 kt. waves 2 to
4 ft. 
.tonight...n winds 5 to 10 kt, becoming se after midnight. waves
2 to 3 ft. 
.sun...s winds 10 to 15 kt with gusts up to 20 kt. waves 2 to
3 ft. patchy fog. a chance of rain in the afternoon. vsby 1 to
3 nm. 
.sun night...w winds 5 to 10 kt, becoming n 10 to 15 kt with
gusts up to 20 kt after midnight. waves 2 to 3 ft. rain. patchy
fog in the evening with vsby 1 nm or less. 
.mon...n winds around 15 kt with gusts up to 20 kt. waves 2 to
3 ft. a chance of snow. rain in the morning, then a chance of
rain in the afternoon. 
.mon night...n winds 10 to 15 kt. gusts up to 20 kt in the
evening. waves 2 to 3 ft. 
.tue through wed night...w winds 10 to 15 kt with gusts up to
20 kt. waves 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 211104
cwfbox
expires:202603220000;;054423

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 am edt sat mar 21 2026

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


anz237-220000-
block island sound-
703 am edt sat mar 21 2026

.today...nw winds around 10 kt with gusts up to 20 kt. seas 4 to
6 ft. wave detail: se 5 ft at 8 seconds and sw 3 ft at 7 seconds.
patchy fog this morning with vsby 1 to 3 nm. 
.tonight...ne winds 5 to 10 kt, becoming se after midnight. seas
2 to 4 ft. wave detail: s 3 ft at 7 seconds and se 3 ft at
8 seconds. 
.sun...s winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: s 3 ft at 7 seconds. patchy fog. vsby 1 to
3 nm. 
.sun night...sw winds 10 to 15 kt, becoming n with gusts up to
20 kt after midnight. seas 2 to 4 ft. wave detail: s 4 ft at
7 seconds. rain. patchy fog in the evening with vsby 1 nm or
less. 
.mon...n winds around 15 kt with gusts up to 20 kt. seas 3 to
5 ft. wave detail: ne 5 ft at 7 seconds and sw 2 ft at 7 seconds.
rain, mainly in the morning. 
.mon night...n winds 10 to 15 kt with gusts up to 20 kt. seas
2 to 4 ft. wave detail: e 4 ft at 7 seconds and nw 2 ft at
5 seconds. 
.tue through wed night...w 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 211104
cwfbox
expires:202603220000;;054417

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
703 am edt sat mar 21 2026

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


anz255-220000-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
703 am edt sat mar 21 2026

...small craft advisory in effect through this evening...

.today...w winds 15 to 20 kt, becoming nw 10 to 15 kt this
afternoon. gusts up to 25 kt. seas 5 to 7 ft. wave detail: sw
7 ft at 8 seconds and e 3 ft at 8 seconds. patchy fog this
morning with vsby 1 nm or less. 
.tonight...ne winds 5 to 10 kt with gusts up to 20 kt, becoming
se after midnight. seas 3 to 5 ft. wave detail: sw 4 ft at
7 seconds and se 3 ft at 8 seconds. 
.sun...s winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. wave detail: s 5 ft at 7 seconds. patchy fog in the
afternoon with vsby 1 to 3 nm. 
.sun night...sw winds 10 to 15 kt, becoming nw after midnight.
gusts up to 20 kt. seas 4 to 5 ft. wave detail: s 5 ft at
7 seconds and se 2 ft at 8 seconds. rain likely. patchy fog in
the evening with vsby 1 nm or less. 
.mon...n winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. seas 4 to 6 ft. wave detail: ne 6 ft at 7 seconds and
w 5 ft at 7 seconds. rain likely, mainly in the morning. 
.mon night...n winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. seas 4 to 6 ft. wave detail: ne 6 ft at 8 seconds
and nw 4 ft at 4 seconds. 
.tue...n winds 15 to 20 kt. seas 3 to 5 ft. 
.tue night through wed night...nw winds 20 to 25 kt. seas 2 to
4 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.

$$