Coastal Waters Forecast
Issued by NWS Boston, MA

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000
FZUS51 KBOX 181116
CWFBOX

Coastal Waters Forecast
National Weather Service Taunton MA
716 AM EDT Fri Aug 18 2017

COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT TO
25 NM

ANZ200-190000-
716 AM EDT Fri Aug 18 2017

.Synopsis for Massachusetts and Rhode Island coastal waters...
A warm front will lift north across the waters today. A cold front
will then cross New England later tonight and Saturday, passing
across the waters early Saturday night. This will bring showers and
thunderstorms along with areas of fog. High pressure will  return
with dry weather on Saturday night through Tuesday. A cold front
will approach the waters midweek.

For information on possible hazardous weather beyond the 24-36
hour forecast period, please visit www.weather.gov/boston and
follow the Current Hazards link above the map on the left.

$$

ANZ250-190000-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
716 AM EDT Fri Aug 18 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
SATURDAY AFTERNOON...

.TODAY...S winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts
up to 25 kt this afternoon. Seas 2 to 4 ft. A chance of showers
this morning, then showers likely this afternoon. Patchy fog this
afternoon with vsby 1 to 3 NM.
.TONIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to
6 ft. Patchy fog. Showers likely with a chance of tstms. Some
tstms may produce heavy rainfall. Vsby 1 NM or less.
.SAT...S winds 10 to 15 kt. Gusts up to 25 kt in the morning.
Seas 3 to 5 ft. A chance of showers and tstms. Some tstms may
produce heavy rainfall. Vsby 1 to 3 NM.
.SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft.
.SUN...W winds 5 to 10 kt. Seas 2 to 3 ft.
.SUN NIGHT...W winds 5 to 10 kt. Seas around 2 ft.
.MON...SW winds 5 to 10 kt. Seas 1 foot or less.
.MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
.TUE...SW winds 10 to 15 kt. Seas 2 to 3 ft.
.TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. A chance of showers.

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.

$$

ANZ251-190000-
Massachusetts Bay and Ipswich Bay-
716 AM EDT Fri Aug 18 2017

.TODAY...S winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts
up to 25 kt this afternoon. Seas 2 to 4 ft. Showers likely. A
chance of tstms this afternoon. Patchy fog this afternoon. Some
tstms may produce heavy rainfall this afternoon with vsby 1 to
3 NM.
.TONIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Patchy fog. Showers likely with a chance of tstms. Some
tstms may produce heavy rainfall. Vsby 1 NM or less.
.SAT...S winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers
and tstms. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM.
.SAT NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft.
.SUN...W winds 5 to 10 kt. Seas 1 foot or less.
.SUN NIGHT...W winds around 5 kt. Seas 1 foot or less.
.MON...W winds around 5 kt. Seas 1 foot or less.
.MON NIGHT...SW winds around 5 kt. Seas 1 foot or less.
.TUE...SW winds 5 to 10 kt. Seas around 2 ft.
.TUE NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. A chance of
showers.

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.

$$

ANZ231-190000-
Cape Cod Bay-
716 AM EDT Fri Aug 18 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 5 PM EDT THIS AFTERNOON
THROUGH SATURDAY MORNING...

.TODAY...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 25 kt this afternoon. Seas around 2 ft. Showers likely.
.TONIGHT...S winds 10 to 15 kt with gusts up to 30 kt. Seas 2 to
4 ft. Patchy fog. Showers likely with a chance of tstms. Some
tstms may produce heavy rainfall. Vsby 1 NM or less.
.SAT...S winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas
2 to 3 ft. Showers likely with a chance of tstms. Some tstms may
produce heavy rainfall. Vsby 1 to 3 NM.
.SAT NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. A chance
of showers.
.SUN...W winds 5 to 10 kt. Seas 1 foot or less.
.SUN NIGHT...W winds around 5 kt. Seas 1 foot or less.
.MON...W winds around 5 kt. Seas 1 foot or less.
.MON NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less.
.TUE...SW winds 5 to 10 kt. Seas around 2 ft.
.TUE NIGHT...SW winds 10 to 15 kt. Seas around 2 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.

$$

ANZ254-190000-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
716 AM EDT Fri Aug 18 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
SATURDAY AFTERNOON...

.TODAY...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt this afternoon. Seas 2 to 4 ft. A chance of showers.
Patchy fog this afternoon with vsby 1 to 3 NM.
.TONIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
5 ft. Patchy fog. Showers likely with a chance of tstms. Some
tstms may produce heavy rainfall. Vsby 1 NM or less.
.SAT...S winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 4 to 6 ft. A chance of
showers. Vsby 1 NM or less.
.SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
becoming W 5 to 10 kt after midnight. Seas 3 to 5 ft. A chance of
showers.
.SUN...W winds 5 to 10 kt. Seas 2 to 4 ft.
.SUN NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft.
.MON...W winds around 5 kt. Seas around 2 ft.
.MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
.TUE...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 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.

$$

ANZ255-190000-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
716 AM EDT Fri Aug 18 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH SATURDAY EVENING...

.TODAY...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt this afternoon. Seas 2 to 4 ft. A chance of showers.
Isolated tstms this afternoon. Patchy fog this afternoon. Some
tstms may produce heavy rainfall this afternoon.
.TONIGHT...S winds 10 to 15 kt with gusts up to 30 kt. Seas 4 to
6 ft. Patchy fog. Showers likely with a chance of tstms. Some
tstms may produce heavy rainfall. Vsby 1 NM or less.
.SAT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to
6 ft. A chance of showers. Vsby 1 NM or less.
.SAT NIGHT...SW winds 5 to 10 kt. Seas 3 to 5 ft. A chance of
showers.
.SUN...W winds 5 to 10 kt. Seas 2 to 4 ft.
.SUN NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft.
.MON...W winds 5 to 10 kt. Seas around 2 ft.
.MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
.TUE...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 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.

$$

ANZ256-190000-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
716 AM EDT Fri Aug 18 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH SATURDAY EVENING...

.TODAY...S winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to
5 ft. Patchy fog. A chance of showers with a slight chance of
tstms. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM this
morning.
.TONIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to
6 ft. Patchy fog. Showers likely with a chance of tstms. Some
tstms may produce heavy rainfall. Vsby 1 NM or less.
.SAT...S winds 15 to 20 kt with gusts up to 25 kt, becoming SW
10 to 15 kt in the afternoon. Seas 4 to 6 ft. Showers likely with
a chance of tstms. Some tstms may produce heavy rainfall. Vsby
1 to 3 NM.
.SAT NIGHT...W winds 5 to 10 kt. Seas 3 to 5 ft.
.SUN...W winds 5 to 10 kt. Seas 2 to 3 ft.
.SUN NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft.
.MON...W winds 5 to 10 kt. Seas around 2 ft.
.MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
.TUE...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
3 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.

$$

ANZ232-190000-
Nantucket Sound-
716 AM EDT Fri Aug 18 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 5 PM EDT THIS AFTERNOON
THROUGH SATURDAY MORNING...

.TODAY...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt this afternoon. Seas around 2 ft. Showers likely this
morning, then a chance of showers with isolated tstms this
afternoon. Some tstms may produce heavy rainfall this afternoon.
.TONIGHT...S winds 10 to 15 kt with gusts up to 30 kt. Seas 2 to
4 ft. Patchy fog. Showers with a chance of tstms. Some tstms may
produce heavy rainfall. Vsby 1 NM or less.
.SAT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Showers likely with a chance of tstms. Some tstms may
produce heavy rainfall. Vsby 1 NM or less.
.SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers.
.SUN...W winds 5 to 10 kt. Seas around 2 ft.
.SUN NIGHT...W winds 5 to 10 kt. Seas around 2 ft.
.MON...W winds 5 to 10 kt. Seas around 2 ft.
.MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
.TUE...SW winds 5 to 10 kt. Seas around 2 ft.
.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.

$$

ANZ233-190000-
Vineyard Sound-
716 AM EDT Fri Aug 18 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 5 PM EDT THIS AFTERNOON
THROUGH SATURDAY MORNING...

.TODAY...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt this afternoon. Seas 2 to 3 ft. Showers likely. A
slight chance of tstms this afternoon. Some tstms may produce
heavy rainfall this afternoon.
.TONIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
5 ft. Patchy fog. Showers likely with a chance of tstms. Some
tstms may produce heavy rainfall. Vsby 1 NM or less.
.SAT...SW winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 2 to 4 ft. Showers likely with a chance of tstms. Some tstms
may produce heavy rainfall. Vsby 1 to 3 NM.
.SAT NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft.
.SUN...W winds 5 to 10 kt. Seas around 2 ft.
.SUN NIGHT...W winds 5 to 10 kt. Seas around 2 ft.
.MON...W winds 5 to 10 kt. Seas around 2 ft.
.MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
.TUE...SW winds 5 to 10 kt. Seas around 2 ft.
.TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft. A chance of showers.

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.

$$

ANZ234-190000-
Buzzards Bay-
716 AM EDT Fri Aug 18 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 5 PM EDT THIS AFTERNOON
THROUGH SATURDAY MORNING...

.TODAY...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 25 kt this afternoon. Seas around 2 ft. Showers likely. A
slight chance of tstms this afternoon. Some tstms may produce
heavy rainfall this afternoon.
.TONIGHT...S winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. Gusts up to 30 kt. Seas 2 to 4 ft. Patchy fog. Showers
with a chance of tstms. Some tstms may produce heavy rainfall.
Vsby 1 NM or less.
.SAT...SW winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 2 to 3 ft. Showers likely with a chance of tstms. Some tstms
may produce heavy rainfall. Vsby 1 to 3 NM.
.SAT NIGHT...W winds 5 to 10 kt. Seas around 2 ft.
.SUN...W winds 5 to 10 kt. Seas 1 foot or less.
.SUN NIGHT...W winds 5 to 10 kt. Seas 1 foot or less.
.MON...W winds 5 to 10 kt. Seas 1 foot or less.
.MON NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less.
.TUE...SW winds 5 to 10 kt. Seas 1 foot or less.
.TUE NIGHT...SW winds 10 to 15 kt. Seas 1 foot or less. A chance
of showers.

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.

$$

ANZ235-190000-
Rhode Island Sound-
716 AM EDT Fri Aug 18 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH SATURDAY MORNING...

.TODAY...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Showers likely. A slight chance of tstms this afternoon.
Patchy fog this afternoon. Some tstms may produce heavy rainfall
this afternoon.
.TONIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to
6 ft. Patchy fog. Showers likely with a chance of tstms. Some
tstms may produce heavy rainfall. Vsby 1 NM or less.
.SAT...S winds 15 to 20 kt, becoming SW 10 to 15 kt in the
afternoon. Seas 4 to 6 ft. A chance of showers and tstms. Some
tstms may produce heavy rainfall. Vsby 1 to 3 NM.
.SAT NIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after
midnight. Seas 2 to 4 ft.
.SUN...W winds 5 to 10 kt. Seas 2 to 3 ft.
.SUN NIGHT...W winds 5 to 10 kt. Seas around 2 ft.
.MON...W winds 5 to 10 kt. Seas around 2 ft.
.MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
.TUE...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.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.

$$

ANZ237-190000-
Block Island Sound-
716 AM EDT Fri Aug 18 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH SATURDAY MORNING...

.TODAY...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Patchy fog. A chance of showers with a slight chance of
tstms. Some tstms may produce heavy rainfall. Vsby 1 to 3 NM.
.TONIGHT...S winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. Gusts up to 30 kt. Seas 4 to 6 ft. Patchy fog. Showers
likely with a chance of tstms. Some tstms may produce heavy
rainfall. Vsby 1 to 3 NM.
.SAT...SW winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 3 to 5 ft. A chance of showers and tstms. Some tstms may
produce heavy rainfall. Vsby 1 to 3 NM.
.SAT NIGHT...W winds 5 to 10 kt. Seas 2 to 4 ft.
.SUN...W winds 5 to 10 kt. Seas 2 to 3 ft.
.SUN NIGHT...W winds 5 to 10 kt. Seas around 2 ft.
.MON...W winds 5 to 10 kt. Seas around 2 ft.
.MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
.TUE...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.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.

$$

ANZ230-190000-
Boston Harbor-
716 AM EDT Fri Aug 18 2017

.TODAY...S winds 5 to 10 kt. Gusts up to 20 kt this afternoon.
Waves around 2 ft. Showers. A chance of tstms this afternoon.
Patchy fog this afternoon. Some tstms may produce heavy rainfall
this afternoon with vsby 1 to 3 NM.
.TONIGHT...S winds 5 to 10 kt with gusts up to 20 kt. Waves
around 2 ft. Patchy fog. Showers with a chance of tstms. Some
tstms may produce heavy rainfall. Vsby 1 to 3 NM.
.SAT...S winds 5 to 10 kt. Waves 1 foot or less. A chance of
showers and tstms. Some tstms may produce heavy rainfall. Vsby
1 to 3 NM.
.SAT NIGHT...W winds around 5 kt. Waves 1 foot or less.
.SUN...W winds around 5 kt. Waves 1 foot or less.
.SUN NIGHT...W winds around 5 kt. Waves 1 foot or less.
.MON...W winds around 5 kt. Waves 1 foot or less.
.MON NIGHT...SW winds around 5 kt. Waves 1 foot or less.
.TUE...SW winds around 5 kt. Waves 1 foot or less.
.TUE NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. A chance
of showers.

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.

$$

ANZ236-190000-
Narragansett Bay-
716 AM EDT Fri Aug 18 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 5 PM EDT THIS AFTERNOON
THROUGH LATE TONIGHT...

.TODAY...S winds 5 to 10 kt, increasing to 10 to 15 kt this
afternoon. Gusts up to 20 kt. Waves 2 to 3 ft. A chance of
showers and tstms this morning, then showers likely with a slight
chance of tstms this afternoon. Patchy fog this afternoon. Some
tstms may produce heavy rainfall. Vsby 1 to 3 NM this afternoon.
.TONIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to
4 ft. Patchy fog. Showers with a chance of tstms. Some tstms may
produce heavy rainfall. Vsby 1 NM or less.
.SAT...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Waves 2 to 3 ft. A chance of showers and tstms. Some tstms may
produce heavy rainfall. Vsby 1 to 3 NM.
.SAT NIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Waves 2 to 3 ft. Patchy fog. Vsby 1 to 3 NM.
.SUN...W winds 5 to 10 kt. Waves 1 foot or less.
.SUN NIGHT...W winds 5 to 10 kt. Waves 1 foot or less.
.MON...W winds around 5 kt. Waves 1 foot or less.
.MON NIGHT...SW winds around 5 kt. Waves 1 foot or less.
.TUE...SW winds 5 to 10 kt. Waves 1 foot or less.
.TUE NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. A chance of
showers.

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.

$$

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