fzus51 kbox 162031
cwfbox
expires:202604170900;;484226

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
431 pm edt thu apr 16 2026

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


anz231-170900-
cape cod bay-
431 pm edt thu apr 16 2026

.tonight...sw winds 5 to 10 kt. seas around 2 ft. patchy fog. a
chance of showers with a slight chance of tstms after midnight.
vsby 1 nm or less, increasing to 1 to 3 nm after midnight. 
.fri...w winds 5 to 10 kt, becoming n in the afternoon. seas
1 foot or less. patchy fog in the morning. a chance of showers in
the morning with vsby 1 nm or less. 
.fri night...ne winds 5 to 10 kt. seas 1 foot or less. 
.sat...ne winds 5 to 10 kt. seas 1 foot or less. patchy fog in
the morning. 
.sat night...e winds around 5 kt, becoming s after midnight. seas
1 foot or less, then around 2 ft after midnight.
.sun and sun night...w winds 10 to 15 kt with gusts up to 20 kt.
seas 2 to 3 ft. a chance of showers in the morning, then showers
likely through the night. a chance of showers after midnight. 
.mon through tue night...sw winds 10 to 15 kt with gusts up to
20 kt. seas 2 to 3 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.

$$

fzus51 kbox 162031
cwfbox
expires:202604170900;;484230

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
431 pm edt thu apr 16 2026

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


anz232-170900-
nantucket sound-
431 pm edt thu apr 16 2026

.tonight...sw winds 10 to 15 kt. gusts up to 20 kt after
midnight. seas 2 to 3 ft. patchy fog. vsby 1 nm or less. 
.fri...w winds 5 to 10 kt, becoming nw in the afternoon. seas
2 to 3 ft. patchy fog in the morning with vsby 1 nm or less. 
.fri night...ne winds 5 to 10 kt. seas around 2 ft. patchy fog
after midnight. 
.sat...ne winds 5 to 10 kt. seas around 2 ft. patchy fog in the
morning. 
.sat night...e winds 5 to 10 kt, becoming s after midnight. seas
around 2 ft. 
.sun and sun night...nw winds 15 to 20 kt. seas 2 to 3 ft. a
chance of showers in the morning, then showers likely through the
night. a chance of showers after midnight. 
.mon through tue night...sw 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 162031
cwfbox
expires:202604170900;;484231

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
431 pm edt thu apr 16 2026

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


anz233-170900-
vineyard sound-
431 pm edt thu apr 16 2026

.tonight...sw winds 10 to 15 kt. seas 2 to 3 ft. a chance of with
patchy fog. a chance of. vsby 1 nm or less. 
.fri...sw winds 5 to 10 kt, becoming nw in the afternoon. seas
2 to 3 ft. a chance of showers in the morning, then a chance of
rain in the afternoon. patchy fog in the morning with vsby 1 to
3 nm. 
.fri night...ne winds 5 to 10 kt. seas 2 to 3 ft. patchy fog
after midnight. 
.sat...ne winds around 10 kt. seas around 2 ft. patchy fog in the
morning. 
.sat night...e winds 5 to 10 kt, becoming s after midnight. seas
around 2 ft. 
.sun and sun night...nw winds 15 to 20 kt. seas 2 to 3 ft. a
chance of showers in the morning, then showers likely through the
night. a chance of showers after midnight. 
.mon through tue night...sw 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.

$$

fzus51 kbox 162031
cwfbox
expires:202604170900;;484232

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
431 pm edt thu apr 16 2026

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


anz234-170900-
buzzards bay-
431 pm edt thu apr 16 2026

.tonight...sw winds 10 to 15 kt. seas around 2 ft. patchy fog. a
slight chance of tstms. a chance of showers after midnight. vsby
1 nm or less. 
.fri...sw winds 5 to 10 kt, becoming nw in the afternoon. seas
around 2 ft. patchy fog in the morning. a chance of rain in the
afternoon. vsby 1 nm or less in the morning. 
.fri night...ne winds 5 to 10 kt. seas around 2 ft. 
.sat...ne winds around 10 kt. seas around 2 ft. patchy fog in the
morning. 
.sat night...e winds 5 to 10 kt, becoming s after midnight. seas
around 2 ft in the evening, then 1 foot or less.
.sun and sun night...w winds 15 to 20 kt. seas 2 to 3 ft. a
chance of showers in the morning, then showers likely through the
night. a chance of showers after midnight. 
.mon through tue night...sw winds 15 to 20 kt with gusts up to
25 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.

$$

fzus51 kbox 162031
cwfbox
expires:202604170900;;484233

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
431 pm edt thu apr 16 2026

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


anz235-170900-
rhode island sound-
431 pm edt thu apr 16 2026

.tonight...sw winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
4 ft. patchy fog. vsby 1 nm or less. 
.fri...w winds 5 to 10 kt. seas 3 to 4 ft. a chance of rain.
patchy fog in the morning with vsby 1 to 3 nm. 
.fri night...ne winds around 10 kt. seas 2 to 3 ft. 
.sat...ne winds around 10 kt. seas 2 to 3 ft. patchy fog in the
morning. 
.sat night...e winds 5 to 10 kt, becoming s after midnight. seas
around 2 ft. 
.sun and sun night...nw winds 15 to 20 kt. seas 2 to 4 ft. a
chance of showers in the morning, then showers likely through the
night. a chance of showers after midnight. 
.mon through tue...w winds 15 to 20 kt. seas 2 to 4 ft. 
.tue night...sw winds 20 to 25 kt. seas 3 to 5 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 162031
cwfbox
expires:202604170900;;484236

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
431 pm edt thu apr 16 2026

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


anz236-170900-
narragansett bay-
431 pm edt thu apr 16 2026

.tonight...s winds 10 to 15 kt, becoming sw 5 to 10 kt after
midnight. waves around 2 ft. a chance of with patchy fog. a
chance of. vsby 1 to 3 nm. 
.fri...sw winds around 5 kt, becoming nw in the afternoon. waves
around 2 ft. a chance of rain. patchy fog in the morning with
vsby 1 to 3 nm. 
.fri night...ne winds 5 to 10 kt. waves around 2 ft. a chance of
rain in the evening. 
.sat...ne winds 5 to 10 kt. waves around 2 ft. 
.sat night...e winds 5 to 10 kt, becoming s after midnight. waves
around 2 ft. 
.sun and sun night...w winds 10 to 15 kt with gusts up to 20 kt.
waves around 2 ft. a chance of showers in the morning, then
showers likely through the night. a chance of showers after
midnight. 
.mon through tue...w winds 10 to 15 kt with gusts up to 20 kt.
waves around 2 ft. 
.tue night...sw winds 15 to 20 kt. waves 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.

$$

fzus51 kbox 162031
cwfbox
expires:202604170900;;484224

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
431 pm edt thu apr 16 2026

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


anz250-170900-
coastal waters east of ipswich bay and the stellwagen bank
national marine sanctuary-
431 pm edt thu apr 16 2026

.tonight...s winds 5 to 10 kt, becoming sw after midnight. seas
around 2 ft. patchy fog. showers likely with a chance of tstms
this evening, then a chance of showers with a slight chance of
tstms after midnight. vsby 1 nm or less. 
.fri...w winds 5 to 10 kt, becoming ne in the afternoon. seas
around 2 ft. patchy fog in the morning. a chance of showers in
the morning with vsby 1 nm or less. 
.fri night...ne winds 5 to 10 kt. seas around 2 ft. 
.sat...ne winds 5 to 10 kt. seas around 2 ft. 
.sat night...e winds 5 to 10 kt, becoming s after midnight. seas
2 to 3 ft. 
.sun...s winds 10 to 15 kt, becoming sw 15 to 20 kt in the
afternoon. seas 2 to 4 ft. a chance of showers in the morning,
then showers likely in the afternoon. 
.sun night...w winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. showers likely, mainly in the evening. 
.mon and mon night...nw winds 15 to 20 kt with gusts up to 25 kt.
seas 3 to 5 ft. 
.tue and tue night...w winds 10 to 15 kt, becoming s 15 to 20 kt.
gusts up to 25 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.

$$

fzus51 kbox 162031
cwfbox
expires:202604170900;;484227

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
431 pm edt thu apr 16 2026

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


anz254-170900-
coastal waters from provincetown ma to chatham ma to nantucket ma
out 20 nm-
431 pm edt thu apr 16 2026

.tonight...sw winds 10 to 15 kt with gusts up to 20 kt. seas 2 to
4 ft. patchy fog. a slight chance of tstms. a chance of showers
after midnight. vsby 1 nm or less. 
.fri...w winds 5 to 10 kt, becoming n in the afternoon. seas 2 to
4 ft. patchy fog. a chance of showers in the morning. vsby 1 nm
or less, increasing to 1 to 3 nm in the afternoon. 
.fri night...ne winds 5 to 10 kt. seas 2 to 3 ft. patchy fog
after midnight. 
.sat...ne winds 5 to 10 kt. seas 2 to 3 ft. patchy fog in the
morning. 
.sat night...e winds 5 to 10 kt, becoming s after midnight. seas
2 to 3 ft. 
.sun...s winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. seas 2 to 4 ft. showers likely in the afternoon. 
.sun night...nw winds 15 to 20 kt with gusts up to 25 kt. seas
3 to 5 ft. showers likely, mainly in the evening. 
.mon...nw winds 15 to 20 kt. seas 3 to 5 ft. 
.mon night through tue night...sw winds 15 to 20 kt with gusts up
to 25 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.

$$

fzus51 kbox 162031
cwfbox
expires:202604170900;;484228

coastal waters forecast for massachusetts and rhode island
national weather service boston/norton ma
431 pm edt thu apr 16 2026

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


anz255-170900-
coastal waters extending out to 25 nm south of marthas vineyard
and nantucket-
431 pm edt thu apr 16 2026

.tonight...sw winds 10 to 15 kt with gusts up to 20 kt. seas 3 to
5 ft. patchy fog. vsby 1 nm or less. 
.fri...w winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. seas 3 to 5 ft. patchy fog. vsby 1 nm or less,
increasing to 1 to 3 nm in the afternoon. 
.fri night...ne winds 5 to 10 kt. seas 3 to 4 ft. patchy fog. 
.sat...ne winds 5 to 10 kt. seas 2 to 3 ft. patchy fog in the
morning. 
.sat night...e winds 5 to 10 kt, becoming s after midnight. seas
2 to 3 ft. 
.sun...s winds 10 to 15 kt, becoming sw 15 to 20 kt in the
afternoon. gusts up to 25 kt. seas 3 to 5 ft. showers likely in
the afternoon. 
.sun night...nw winds 20 to 25 kt. seas 4 to 6 ft. showers
likely, mainly in the evening. 
.mon...w winds 15 to 20 kt with gusts up to 25 kt. seas 4 to
6 ft. 
.mon night...nw winds 15 to 20 kt. seas 3 to 5 ft.
.tue...nw winds 10 to 15 kt. seas 2 to 4 ft. 
.tue night...sw winds 20 to 25 kt. seas 3 to 5 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.

$$