fzus51 kbox 120506
cwfbox
expires:202603121800;;054669

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
106 am edt thu mar 12 2026

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


anz235-121800-
rhode island sound-
106 am edt thu mar 12 2026

...small craft advisory in effect through friday morning...

.rest of tonight...sw winds 20 to 25 kt with gusts up to 30 kt.
seas 5 to 7 ft. wave detail: s 7 ft at 7 seconds and e 1 foot at
7 seconds. showers likely with a slight chance of tstms. 
.thu...sw winds around 15 kt, becoming nw in the afternoon. gusts
up to 25 kt. seas 5 to 8 ft. wave detail: s 8 ft at 7 seconds and
w 2 ft at 4 seconds. rain. snow in the afternoon. 
.thu night...nw winds 15 to 20 kt with gusts up to 25 kt. seas
4 to 6 ft. wave detail: s 5 ft at 8 seconds and w 3 ft at
4 seconds. snow likely in the evening. 
.fri...w winds 10 to 15 kt, becoming sw 15 to 20 kt in the
afternoon. gusts up to 25 kt. seas 3 to 5 ft. wave detail: sw
4 ft at 8 seconds and s 3 ft at 10 seconds. 
.fri night...s winds 20 to 25 kt, becoming sw 25 to 30 kt after
midnight. seas 5 to 7 ft, building to 6 to 9 ft after midnight.
wave detail: sw 7 ft at 6 seconds and se 3 ft at 9 seconds,
becoming s 9 ft at 9 seconds and se 4 ft at 9 seconds. 
.sat...w winds 25 to 30 kt with gusts up to 35 kt. seas 7 to
10 ft. wave detail: s 10 ft at 10 seconds and w 3 ft at
5 seconds. 
.sat night...nw winds 15 to 20 kt with gusts up to 25 kt. seas
4 to 6 ft, subsiding to 2 to 4 ft after midnight. 
.sun...e winds 10 to 15 kt. seas 2 to 3 ft. 
.sun night...se winds 25 to 30 kt with gusts up to 35 kt. seas
4 to 6 ft. rain likely. 
.mon...s winds 30 to 35 kt with gusts up to 40 kt. seas 7 to
10 ft. rain.
.mon night...sw winds 25 to 30 kt with gusts up to 45 kt. seas
8 to 11 ft. rain. 

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 120506
cwfbox
expires:202603121800;;054672

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
106 am edt thu mar 12 2026

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


anz236-121800-
narragansett bay-
106 am edt thu mar 12 2026

.rest of tonight...sw winds 15 to 20 kt with gusts up to 25 kt.
waves 3 to 5 ft. showers likely with a slight chance of tstms. 
.thu...sw winds 10 to 15 kt, becoming nw in the afternoon. gusts
up to 25 kt. waves 3 to 5 ft. rain. snow in the afternoon. 
.thu night...nw winds 10 to 15 kt with gusts up to 20 kt. waves
2 to 3 ft. snow likely in the evening. 
.fri...w winds 5 to 10 kt, becoming sw 15 to 20 kt with gusts up
to 25 kt in the afternoon. waves 2 to 3 ft. 
.fri night...sw winds 20 to 25 kt with gusts up to 30 kt. waves
4 to 6 ft. 
.sat...w winds 20 to 25 kt with gusts up to 35 kt. waves 4 to
6 ft. 
.sat night...w winds 15 to 20 kt with gusts up to 25 kt, becoming
nw 5 to 10 kt after midnight. waves 2 to 3 ft. 
.sun...e winds 5 to 10 kt. waves around 2 ft. 
.sun night...se winds 20 to 25 kt with gusts up to 35 kt. waves
3 to 5 ft. rain likely. 
.mon...s winds 25 to 30 kt with gusts up to 40 kt. waves 5 to
8 ft. rain.
.mon night...sw winds 20 to 25 kt with gusts up to 40 kt. waves
5 to 7 ft. rain. 

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 120506
cwfbox
expires:202603121800;;054670

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
106 am edt thu mar 12 2026

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


anz237-121800-
block island sound-
106 am edt thu mar 12 2026

...small craft advisory in effect through friday morning...

.rest of tonight...sw winds around 20 kt with gusts up to 25 kt.
seas 4 to 6 ft. wave detail: s 5 ft at 7 seconds and w 1 foot at
4 seconds. showers likely with a slight chance of tstms. 
.thu...sw winds 10 to 15 kt, becoming nw in the afternoon. gusts
up to 25 kt. seas 5 to 7 ft. wave detail: s 5 ft at 7 seconds and
w 2 ft at 4 seconds. rain. snow in the afternoon. 
.thu night...nw winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. wave detail: s 4 ft at 8 seconds and w 3 ft at
4 seconds. snow likely in the evening. 
.fri...w winds 10 to 15 kt, becoming sw 15 to 20 kt in the
afternoon. gusts up to 25 kt. seas 3 to 4 ft. wave detail: s 3 ft
at 8 seconds and s 3 ft at 9 seconds. 
.fri night...sw winds 20 to 25 kt with gusts up to 30 kt. seas
4 to 6 ft, building to 5 to 8 ft after midnight. wave detail: sw
6 ft at 6 seconds and se 3 ft at 9 seconds, becoming s 7 ft at
8 seconds and se 5 ft at 9 seconds. 
.sat...w winds 20 to 25 kt with gusts up to 35 kt. seas 6 to
9 ft, subsiding to 5 to 7 ft in the afternoon. wave detail: s
6 ft at 9 seconds and w 4 ft at 5 seconds, becoming s 5 ft at
10 seconds and w 4 ft at 5 seconds.
.sat night...nw winds 10 to 15 kt. gusts up to 25 kt in the
evening. seas 3 to 5 ft. 
.sun...e winds 10 to 15 kt. seas around 2 ft. 
.sun night...se winds 25 to 30 kt with gusts up to 35 kt. seas
4 to 6 ft. rain likely. 
.mon...s winds 25 to 30 kt with gusts up to 40 kt. seas 6 to
9 ft. rain.
.mon night...sw winds 25 to 30 kt with gusts up to 45 kt. seas
7 to 10 ft. rain. 

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 120506
cwfbox
expires:202603121800;;054664

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
106 am edt thu mar 12 2026

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


anz255-121800-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
106 am edt thu mar 12 2026

...small craft advisory in effect through friday morning...

.rest of tonight...s winds 25 to 30 kt. seas 6 to 9 ft. wave
detail: s 9 ft at 7 seconds and ne 1 foot at 7 seconds. a chance
of showers with a slight chance of tstms. 
.thu...sw winds 15 to 20 kt, becoming nw in the afternoon. gusts
up to 30 kt. seas 7 to 10 ft. wave detail: s 9 ft at 7 seconds
and w 2 ft at 4 seconds. a chance of rain in the morning, then
rain in the afternoon. 
.thu night...nw winds 20 to 25 kt with gusts up to 30 kt. seas
5 to 8 ft. wave detail: w 6 ft at 7 seconds and s 4 ft at
9 seconds. rain likely with a chance of snow in the evening. 
.fri...w winds 15 to 20 kt, becoming sw in the afternoon. gusts
up to 25 kt. seas 5 to 7 ft, subsiding to 4 to 5 ft in the
afternoon. wave detail: nw 5 ft at 6 seconds and s 4 ft at
9 seconds, becoming sw 4 ft at 7 seconds and se 3 ft at
9 seconds. 
.fri night...s winds 20 to 25 kt, becoming sw 25 to 30 kt after
midnight. seas 5 to 7 ft, building to 8 to 11 ft after midnight.
wave detail: sw 7 ft at 6 seconds and se 2 ft at 9 seconds,
becoming sw 11 ft at 9 seconds and w 1 foot at 4 seconds. 
.sat...w winds 25 to 30 kt with gusts up to 40 kt. seas 9 to
12 ft. wave detail: sw 11 ft at 10 seconds and w 2 ft at
4 seconds. 
.sat night...w winds 20 to 25 kt, becoming nw 15 to 20 kt after
midnight. gusts up to 30 kt. seas 6 to 9 ft, subsiding to 4 to
6 ft after midnight. 
.sun...ne winds 10 to 15 kt. seas 2 to 4 ft. 
.sun night...se winds 25 to 30 kt with gusts up to 35 kt. seas
4 to 6 ft. a chance of rain. 
.mon...s winds 30 to 35 kt with gusts up to 40 kt. seas 8 to
11 ft. rain.
.mon night...sw winds 25 to 35 kt with gusts up to 45 kt. seas
9 to 13 ft. rain. 

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.

$$