fzus51 kbox 270507
cwfbox
expires:202603271800;;358775

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
107 am edt fri mar 27 2026

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


anz231-271800-
cape cod bay-
107 am edt fri mar 27 2026

...small craft advisory in effect until 8 am edt this morning...

.rest of tonight...sw winds 20 to 25 kt with gusts up to 30 kt.
seas 2 to 4 ft. wave detail: sw 3 ft at 5 seconds and se 1 foot
at 9 seconds. patchy fog. showers with isolated tstms. vsby 1 to
3 nm. 
.fri...n winds 15 to 20 kt with gusts up to 25 kt. seas 2 to
3 ft. wave detail: n 2 ft at 4 seconds and s 2 ft at 7 seconds.
patchy fog in the morning. a chance of showers in the morning
with vsby 1 to 3 nm. 
.fri night...n winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt after midnight. seas 2 to 3 ft. wave detail: n
2 ft at 4 seconds and s 2 ft at 8 seconds. 
.sat...n winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: n 3 ft at 5 seconds and s 2 ft at 7 seconds. 
.sat night...nw winds 5 to 10 kt. seas around 2 ft. wave detail:
n 2 ft at 5 seconds and s 1 foot at 7 seconds. 
.sun and sun night...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 3 ft. wave detail: sw 2 ft at 3 seconds and ne 2 ft at
5 seconds. 
.mon and mon night...sw winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. 
.tue and tue night...s winds 10 to 15 kt, increasing to 15 to
20 kt. seas 2 to 3 ft. a chance of 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 270507
cwfbox
expires:202603271800;;358779

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
107 am edt fri mar 27 2026

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


anz232-271800-
nantucket sound-
107 am edt fri mar 27 2026

...small craft advisory in effect until 8 am edt this morning...

.rest of tonight...sw winds 25 to 30 kt with gusts up to 35 kt.
seas 4 to 6 ft. wave detail: sw 5 ft at 8 seconds and sw 3 ft at
4 seconds. patchy fog. showers with isolated tstms. vsby 1 to
3 nm. 
.fri...n winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. wave detail: nw 3 ft at 4 seconds and sw 3 ft at 9 seconds.
patchy fog in the morning. a chance of showers in the morning
with vsby 1 to 3 nm. 
.fri night...ne winds 10 to 15 kt. seas 2 to 3 ft. wave detail: n
2 ft at 4 seconds and s 2 ft at 8 seconds. 
.sat...n winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. wave detail: n 2 ft at 4 seconds and s 1 foot at 8 seconds.
.sat night...nw winds 5 to 10 kt. seas around 2 ft in the
evening, then 1 foot or less. wave detail: n 1 foot at 4 seconds
and s 1 foot at 7 seconds, becoming nw 1 foot at 2 seconds and ne
1 foot at 5 seconds. 
.sun and sun night...sw winds 15 to 20 kt with gusts up to 25 kt.
seas around 2 ft. wave detail: sw 2 ft at 4 seconds and s 2 ft at
7 seconds. 
.mon through tue...s winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. 
.tue night...s winds 20 to 25 kt. seas 2 to 4 ft. a chance of
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 270507
cwfbox
expires:202603271800;;358780

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
107 am edt fri mar 27 2026

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


anz233-271800-
vineyard sound-
107 am edt fri mar 27 2026

...small craft advisory in effect until 8 am edt this morning...

.rest of tonight...sw winds 25 to 30 kt with gusts up to 35 kt.
seas 4 to 6 ft. wave detail: sw 6 ft at 8 seconds and w 2 ft at
4 seconds. patchy fog. showers with isolated tstms. vsby 1 to
3 nm. 
.fri...nw winds 15 to 20 kt, becoming n in the afternoon. gusts
up to 25 kt. seas 4 to 6 ft, subsiding to 2 to 4 ft in the
afternoon. wave detail: sw 6 ft at 8 seconds and nw 2 ft at
4 seconds, becoming sw 4 ft at 8 seconds and n 2 ft at 4 seconds.
patchy fog in the morning. a chance of showers in the morning. 
.fri night...ne winds 10 to 15 kt. seas 2 to 4 ft. wave detail:
sw 3 ft at 8 seconds and n 1 foot at 4 seconds. 
.sat...n winds 10 to 15 kt. gusts up to 20 kt in the morning.
seas 2 to 3 ft. wave detail: n 2 ft at 4 seconds and sw 2 ft at
8 seconds. 
.sat night...nw winds 5 to 10 kt. seas 1 foot or less. wave
detail: nw 1 foot at 2 seconds and ne 1 foot at 3 seconds. 
.sun and sun night...sw winds 20 to 25 kt. seas 2 to 4 ft. wave
detail: sw 4 ft at 7 seconds and sw 3 ft at 4 seconds. 
.mon and mon night...sw winds 20 to 25 kt, diminishing to 15 to
20 kt. seas 2 to 4 ft. 
.tue and tue night...s winds 15 to 20 kt, increasing to 20 to
25 kt with gusts up to 30 kt. seas 2 to 4 ft. a chance of 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 270507
cwfbox
expires:202603271800;;358781

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
107 am edt fri mar 27 2026

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


anz234-271800-
buzzards bay-
107 am edt fri mar 27 2026

...small craft advisory in effect until 8 am edt this morning...

.rest of tonight...sw winds 25 to 30 kt. seas 4 to 5 ft. wave
detail: sw 5 ft at 7 seconds and w 2 ft at 4 seconds. patchy fog.
showers with isolated tstms. 
.fri...n winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft, subsiding to 2 to 3 ft in the afternoon. wave detail: sw
4 ft at 8 seconds and nw 2 ft at 4 seconds, becoming sw 3 ft at
8 seconds and n 2 ft at 4 seconds. a chance of showers in the
morning. 
.fri night...n winds 10 to 15 kt. seas 2 to 3 ft. wave detail: sw
3 ft at 8 seconds and n 1 foot at 4 seconds. 
.sat...n winds 10 to 15 kt. gusts up to 20 kt in the morning.
seas around 2 ft. wave detail: n 2 ft at 4 seconds and sw 2 ft at
8 seconds. 
.sat night...nw winds 5 to 10 kt. seas 1 foot or less. wave
detail: n 1 foot at 3 seconds and s 1 foot at 7 seconds. 
.sun and sun night...sw winds 20 to 25 kt. seas around 2 ft. wave
detail: sw 2 ft at 4 seconds and sw 2 ft at 7 seconds. 
.mon and mon night...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 2 to 4 ft. 
.tue and tue night...s winds 15 to 20 kt, increasing to 20 to
25 kt. seas 2 to 4 ft. a chance of 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 270507
cwfbox
expires:202603271800;;358782

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
107 am edt fri mar 27 2026

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


anz235-271800-
rhode island sound-
107 am edt fri mar 27 2026

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

.rest of tonight...sw winds 25 to 30 kt with gusts up to 35 kt.
seas 6 to 8 ft. wave detail: s 8 ft at 8 seconds and w 2 ft at
5 seconds. patchy fog. showers with isolated tstms. vsby 1 to
3 nm. 
.fri...n winds 15 to 20 kt with gusts up to 25 kt. seas 5 to
7 ft, subsiding to 3 to 5 ft in the afternoon. wave detail: s
7 ft at 8 seconds and nw 1 foot at 4 seconds, becoming s 5 ft at
8 seconds and n 1 foot at 4 seconds. patchy fog in the morning. a
chance of showers in the morning with vsby 1 to 3 nm. 
.fri night...ne winds 10 to 15 kt. seas 3 to 5 ft, subsiding to
2 to 3 ft after midnight. wave detail: s 5 ft at 8 seconds and n
1 foot at 4 seconds, becoming s 3 ft at 8 seconds and ne 2 ft at
3 seconds. 
.sat...n winds 10 to 15 kt. gusts up to 20 kt in the morning.
seas 2 to 4 ft. wave detail: n 3 ft at 4 seconds and s 3 ft at
8 seconds. 
.sat night...nw winds 10 to 15 kt. seas around 2 ft. wave detail:
s 2 ft at 7 seconds and nw 1 foot at 3 seconds. 
.sun...w winds 10 to 15 kt, becoming sw 15 to 20 kt with gusts up
to 25 kt in the afternoon. seas 2 to 3 ft. wave detail: sw 3 ft
at 4 seconds and s 3 ft at 7 seconds. 
.sun night...sw winds 20 to 25 kt. seas 3 to 5 ft.
.mon and mon night...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 5 ft. 
.tue and tue night...s winds 15 to 20 kt, increasing to 20 to
25 kt with gusts up to 30 kt. seas 3 to 5 ft. a chance of 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 270507
cwfbox
expires:202603271800;;358785

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
107 am edt fri mar 27 2026

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


anz236-271800-
narragansett bay-
107 am edt fri mar 27 2026

.rest of tonight...sw winds 20 to 25 kt with gusts up to 30 kt.
waves 5 to 6 ft. patchy fog. showers with isolated tstms. 
.fri...n winds 10 to 15 kt with gusts up to 25 kt. waves 3 to
5 ft. a chance of showers in the morning. 
.fri night...n winds 5 to 10 kt. waves 2 to 3 ft. 
.sat...n winds 10 to 15 kt. gusts up to 20 kt in the morning.
waves around 2 ft. 
.sat night...nw winds 5 to 10 kt. waves around 2 ft in the
evening, then 1 foot or less. 
.sun and sun night...sw winds 15 to 20 kt with gusts up to 25 kt.
waves 2 to 4 ft. 
.mon and mon night...sw winds 15 to 20 kt, diminishing to 10 to
15 kt. gusts up to 25 kt. waves 2 to 4 ft. 
.tue and tue night...s winds 10 to 15 kt, increasing to 15 to
20 kt. gusts up to 25 kt. waves 2 to 4 ft. a chance of 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 270507
cwfbox
expires:202603271800;;358773

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
107 am edt fri mar 27 2026

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


anz250-271800-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
107 am edt fri mar 27 2026

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

.rest of tonight...sw winds 15 to 20 kt with gusts up to 30 kt.
seas 4 to 6 ft. wave detail: se 4 ft at 7 seconds and sw 3 ft at
4 seconds. patchy fog. showers. vsby 1 to 3 nm. 
.fri...n winds 15 to 20 kt with gusts up to 25 kt. seas 3 to
5 ft. wave detail: n 3 ft at 5 seconds and se 3 ft at 9 seconds.
a chance of showers in the morning. 
.fri night...n winds 10 to 15 kt with gusts up to 20 kt. seas
3 to 4 ft. wave detail: n 4 ft at 6 seconds and se 3 ft at
9 seconds. 
.sat...n winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
4 ft. wave detail: ne 4 ft at 6 seconds and se 2 ft at 8 seconds.
.sat night...nw winds 5 to 10 kt, becoming w 10 to 15 kt after
midnight. seas 2 to 4 ft. wave detail: se 3 ft at 7 seconds and
nw 2 ft at 3 seconds. 
.sun...w winds 10 to 15 kt, becoming sw 15 to 20 kt in the
afternoon. gusts up to 25 kt. seas 2 to 4 ft. wave detail: sw
3 ft at 5 seconds and ne 2 ft at 5 seconds. 
.sun night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. 
.mon and mon night...sw winds 15 to 20 kt, diminishing to 10 to
15 kt. seas 2 to 4 ft. 
.tue...se winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
3 ft. a chance of rain. 
.tue night...s winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. a chance of rain.  

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 270507
cwfbox
expires:202603271800;;358776

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
107 am edt fri mar 27 2026

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


anz254-271800-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
107 am edt fri mar 27 2026

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

.rest of tonight...sw winds 25 to 30 kt with gusts up to 40 kt.
seas 6 to 9 ft. wave detail: s 9 ft at 8 seconds and w 3 ft at
5 seconds. patchy fog. showers with isolated tstms. vsby 1 to
3 nm. 
.fri...nw winds 20 to 25 kt, becoming n 15 to 20 kt in the
afternoon. gusts up to 30 kt. seas 5 to 8 ft, subsiding to 5 to
6 ft in the afternoon. wave detail: s 7 ft at 9 seconds and nw
2 ft at 4 seconds, becoming s 5 ft at 9 seconds and n 3 ft at
5 seconds. patchy fog in the morning. a chance of showers in the
morning with vsby 1 to 3 nm. 
.fri night...n winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas 3 to 5 ft. wave detail: s 4 ft at 8 seconds and n
3 ft at 6 seconds. 
.sat...n winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
5 ft. wave detail: n 4 ft at 6 seconds and s 3 ft at 8 seconds. 
.sat night...nw winds 5 to 10 kt. seas 3 to 4 ft. wave detail: ne
3 ft at 6 seconds and s 2 ft at 7 seconds. 
.sun...w winds around 10 kt, becoming sw 15 to 20 kt with gusts
up to 25 kt in the afternoon. seas 2 to 4 ft. wave detail: sw
3 ft at 4 seconds and s 3 ft at 7 seconds. 
.sun night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. 
.mon and mon night...sw winds 15 to 20 kt with gusts up to 25 kt.
seas 4 to 6 ft. 
.tue...s winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
4 ft. 
.tue night...s winds 20 to 25 kt. seas 4 to 6 ft. a chance of
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 270507
cwfbox
expires:202603271800;;358777

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
107 am edt fri mar 27 2026

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


anz255-271800-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
107 am edt fri mar 27 2026

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

.rest of tonight...sw winds 25 to 30 kt with gusts up to 40 kt.
seas 7 to 10 ft. wave detail: sw 10 ft at 8 seconds and w 2 ft at
4 seconds. patchy fog. showers with isolated tstms. vsby 1 to
3 nm. 
.fri...nw winds 20 to 25 kt, becoming n 15 to 20 kt in the
afternoon. gusts up to 30 kt. seas 6 to 9 ft, subsiding to 5 to
7 ft in the afternoon. wave detail: sw 9 ft at 9 seconds and nw
1 foot at 4 seconds, becoming sw 7 ft at 8 seconds and n 2 ft at
4 seconds. patchy fog in the morning. showers likely in the
morning with vsby 1 to 3 nm. 
.fri night...ne winds 10 to 15 kt. gusts up to 20 kt in the
evening. seas 4 to 6 ft. wave detail: sw 6 ft at 8 seconds and n
2 ft at 4 seconds. 
.sat...n winds 15 to 20 kt. seas 2 to 4 ft. wave detail: s 4 ft
at 8 seconds and n 3 ft at 4 seconds. 
.sat night...n winds 5 to 10 kt, becoming nw 10 to 15 kt after
midnight. seas 2 to 4 ft. wave detail: w 2 ft at 3 seconds and ne
2 ft at 5 seconds. 
.sun...w winds 10 to 15 kt, becoming sw 15 to 20 kt with gusts up
to 25 kt in the afternoon. seas 2 to 3 ft. wave detail: sw 3 ft
at 5 seconds and sw 3 ft at 7 seconds. 
.sun night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. 
.mon...sw winds around 20 kt with gusts up to 25 kt. seas 5 to
7 ft. 
.mon night...sw winds 15 to 20 kt with gusts up to 25 kt. seas
4 to 6 ft. 
.tue...s winds 15 to 20 kt. seas 3 to 5 ft. 
.tue night...s winds 25 to 30 kt. seas 4 to 6 ft. a chance of
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.

$$