Coastal Waters Forecast
Issued by NWS Boston, MA

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FZUS51 KBOX 151217
CWFBOX

Coastal Waters Forecast
National Weather Service Taunton MA
716 AM EST Fri Dec 15 2017

Coastal waters from the Merrimack River MA to Watch Hill RI out to
25 NM

ANZ200-160100-
716 AM EST Fri Dec 15 2017

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pres moves offshore today. Low pres will develop off the mid
Atlc coast this afternoon and track well SE of Nantucket tonight.
Another low will track to the north Sat dragging a cold front
across the waters. High pressure builds over the waters on Sunday
into Monday.

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.

$$

ANZ250-160100-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
716 AM EST Fri Dec 15 2017

.TODAY...W winds 10 to 15 kt with gusts up to 20 kt, becoming SW
5 to 10 kt this afternoon. Seas 2 to 4 ft.
.TONIGHT...SW winds 5 to 10 kt, becoming NW 15 to 20 kt with
gusts up to 25 kt after midnight. Seas 2 to 4 ft. A chance of
snow. Vsby 1 NM or less.
.SAT...W winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. Gusts up to 30 kt. Seas 3 to 5 ft.
.SAT NIGHT...NW winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. Gusts up to 30 kt. Seas 3 to 5 ft.
.SUN...NW winds 10 to 15 kt with gusts up to 20 kt, becoming W
5 to 10 kt in the afternoon. Seas 2 to 3 ft.
.SUN NIGHT...W winds 5 to 10 kt. Seas around 2 ft. A chance of
snow. Vsby 1 to 3 NM.
.MON...W winds 5 to 10 kt. Seas 1 foot or less. A chance of rain
and snow. Vsby 1 to 3 NM.
.MON NIGHT...W winds 5 to 10 kt. Seas around 2 ft.
.TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. A chance of rain. Vsby 1 to 3 NM.
.TUE NIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas
4 to 6 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.

$$

ANZ251-160100-
Massachusetts Bay and Ipswich Bay-
716 AM EST Fri Dec 15 2017

.TODAY...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.TONIGHT...SW winds 5 to 10 kt, becoming W 10 to 15 kt with gusts
up to 20 kt after midnight. Seas around 2 ft. A chance of snow.
Vsby 1 NM or less.
.SAT...W winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas 2 to 4 ft.
.SAT NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 25 kt. Seas 2 to 4 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. A chance of
snow. Vsby 1 to 3 NM.
.MON...W winds around 5 kt. Seas 1 foot or less. A chance of rain
and snow. Vsby 1 to 3 NM.
.MON NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. A chance of rain. Vsby 1 to 3 NM.
.TUE NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas
2 to 3 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.

$$

ANZ231-160100-
Cape Cod Bay-
716 AM EST Fri Dec 15 2017

.TODAY...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.TONIGHT...SW winds 5 to 10 kt, becoming NW 10 to 15 kt with
gusts up to 25 kt after midnight. Seas around 2 ft. Snow. Vsby
1 NM or less.
.SAT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
5 ft.
.SAT NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt,
diminishing to 10 to 15 kt with gusts up to 20 kt after midnight.
Seas 2 to 4 ft.
.SUN...NW winds 5 to 10 kt. Seas around 2 ft.
.SUN NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. A chance of
snow. Vsby 1 to 3 NM.
.MON...SW winds 5 to 10 kt. Seas 1 foot or less. A chance of rain
and snow. Vsby 1 to 3 NM.
.MON NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. A chance of rain. Vsby 1 to 3 NM.
.TUE NIGHT...W winds 15 to 20 kt with gusts up to 30 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.

$$

ANZ254-160100-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
716 AM EST Fri Dec 15 2017

.TODAY...W winds 10 to 15 kt, becoming SW 5 to 10 kt this
afternoon. Seas 2 to 4 ft.
.TONIGHT...W winds 5 to 10 kt, becoming NW 15 to 20 kt with gusts
up to 25 kt after midnight. Seas 2 to 4 ft. Snow. Vsby 1 NM or
less.
.SAT...W winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. Gusts up to 30 kt. Seas 4 to 7 ft.
.SAT NIGHT...NW winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. Gusts up to 30 kt. Seas 4 to 7 ft.
.SUN...NW winds 5 to 10 kt. Seas 2 to 4 ft.
.SUN NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. A chance of rain
and snow. Vsby 1 to 3 NM.
.MON...SW winds 5 to 10 kt. Seas around 2 ft. A chance of rain
and snow. Vsby 1 to 3 NM.
.MON NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft.
.TUE...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. A chance of rain.
.TUE NIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas
4 to 7 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.

$$

ANZ255-160100-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
716 AM EST Fri Dec 15 2017

.TODAY...W winds 5 to 10 kt, becoming SW this afternoon. Seas
3 to 5 ft. A chance of snow this afternoon.
.TONIGHT...NW winds 5 to 10 kt, increasing to 15 to 20 kt with
gusts up to 30 kt after midnight. Seas 2 to 4 ft. Snow. Vsby 1 NM
or less.
.SAT...W winds 20 to 25 kt with gusts up to 35 kt. Seas 6 to
9 ft.
.SAT NIGHT...NW winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. Gusts up to 30 kt. Seas 5 to 8 ft.
.SUN...NW winds 5 to 10 kt. Seas 2 to 4 ft.
.SUN NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
rain.
.MON...SW winds 5 to 10 kt. Seas around 2 ft. A chance of rain.
Vsby 1 to 3 NM.
.MON NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft.
.TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. A chance of rain.
.TUE NIGHT...W winds 20 to 25 kt with gusts up to 35 kt. Seas
5 to 8 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.

$$

ANZ256-160100-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
716 AM EST Fri Dec 15 2017

.TODAY...W winds 5 to 10 kt, becoming SW this afternoon. Seas
3 to 5 ft. A chance of snow this afternoon with vsby 1 NM or
less.
.TONIGHT...NW winds 10 to 15 kt, increasing to 15 to 20 kt with
gusts up to 30 kt after midnight. Seas 3 to 5 ft. Snow. Vsby 1 NM
or less.
.SAT...W winds 20 to 25 kt with gusts up to 35 kt. Seas 6 to
9 ft.
.SAT NIGHT...NW winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. Gusts up to 30 kt. Seas 4 to 7 ft.
.SUN...NW winds 5 to 10 kt. Seas 2 to 4 ft.
.SUN NIGHT...W winds 5 to 10 kt. Seas around 2 ft. A chance of
rain.
.MON...W winds 5 to 10 kt. Seas around 2 ft. A chance of rain.
.MON NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft.
.TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. A chance of rain.
.TUE NIGHT...W winds 20 to 25 kt with gusts up to 35 kt. Seas
5 to 8 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.

$$

ANZ232-160100-
Nantucket Sound-
716 AM EST Fri Dec 15 2017

.TODAY...W winds 5 to 10 kt, becoming SW this afternoon. Seas
2 to 3 ft. A slight chance of snow this afternoon.
.TONIGHT...NW winds 5 to 10 kt, increasing to 15 to 20 kt with
gusts up to 25 kt after midnight. Seas 2 to 3 ft. Snow. Vsby 1 NM
or less.
.SAT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
4 ft.
.SAT NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt,
diminishing to 10 to 15 kt with gusts up to 20 kt after midnight.
Seas 2 to 4 ft.
.SUN...NW winds 5 to 10 kt. Seas around 2 ft.
.SUN NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. A chance of
snow. Vsby 1 to 3 NM.
.MON...SW winds 5 to 10 kt. Seas 1 foot or less. A chance of rain
and snow. Vsby 1 to 3 NM.
.MON NIGHT...W winds 5 to 10 kt. Seas 1 foot or less.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. A chance of rain.
.TUE NIGHT...W winds 15 to 20 kt with gusts up to 30 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.

$$

ANZ233-160100-
Vineyard Sound-
716 AM EST Fri Dec 15 2017

.TODAY...W winds 5 to 10 kt, becoming SW this afternoon. Seas
2 to 3 ft. A slight chance of snow this afternoon.
.TONIGHT...NW winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 25 kt after midnight. Seas 2 to 3 ft. Snow. Vsby 1 NM
or less.
.SAT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
5 ft.
.SAT NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 25 kt. Seas 2 to 4 ft.
.SUN...NW winds 5 to 10 kt. Seas around 2 ft.
.SUN NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. A chance of
snow. Vsby 1 to 3 NM.
.MON...SW winds 5 to 10 kt. Seas 1 foot or less. A chance of rain
and snow. Vsby 1 to 3 NM.
.MON NIGHT...W winds 5 to 10 kt. Seas around 2 ft.
.TUE...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft. A chance of rain.
.TUE NIGHT...W winds 15 to 20 kt with gusts up to 30 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.

$$

ANZ234-160100-
Buzzards Bay-
716 AM EST Fri Dec 15 2017

.TODAY...W winds 5 to 10 kt, becoming SW this afternoon. Seas
around 2 ft. A slight chance of snow this afternoon.
.TONIGHT...NW winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 25 kt after midnight. Seas around 2 ft. Snow. Vsby
1 NM or less.
.SAT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to
4 ft.
.SAT NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 25 kt. Seas 2 to 4 ft.
.SUN...NW winds 5 to 10 kt. Seas 1 foot or less.
.SUN NIGHT...W winds around 5 kt. Seas 1 foot or less. A chance
of snow. Vsby 1 to 3 NM.
.MON...SW winds 5 to 10 kt. Seas 1 foot or less. A chance of
snow. Vsby 1 to 3 NM.
.MON NIGHT...W winds 5 to 10 kt. Seas 1 foot or less.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. A chance of rain.
.TUE 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.

$$

ANZ235-160100-
Rhode Island Sound-
716 AM EST Fri Dec 15 2017

.TODAY...W winds 5 to 10 kt, becoming SW this afternoon. Seas
2 to 4 ft. A chance of snow this afternoon.
.TONIGHT...NW winds 10 to 15 kt, increasing to 15 to 20 kt with
gusts up to 25 kt after midnight. Seas 2 to 4 ft. Snow. Vsby 1 NM
or less.
.SAT...W winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to
6 ft.
.SAT NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 30 kt. Seas 3 to 5 ft.
.SUN...NW winds 5 to 10 kt. Seas around 2 ft.
.SUN NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. A chance of
rain and snow. Vsby 1 to 3 NM.
.MON...SW winds 5 to 10 kt. Seas 1 foot or less. A chance of
rain. Vsby 1 to 3 NM.
.MON NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft.
.TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. A chance of rain.
.TUE NIGHT...W winds 20 to 25 kt with gusts up to 35 kt. Seas
4 to 6 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.

$$

ANZ237-160100-
Block Island Sound-
716 AM EST Fri Dec 15 2017

.TODAY...NW winds 5 to 10 kt, becoming SW this afternoon. Seas
2 to 3 ft. A chance of snow this afternoon.
.TONIGHT...NW winds 10 to 15 kt, increasing to 15 to 20 kt with
gusts up to 30 kt after midnight. Seas 2 to 3 ft. Snow. Vsby 1 NM
or less.
.SAT...W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
5 ft.
.SAT NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt,
diminishing to 10 to 15 kt with gusts up to 20 kt after midnight.
Seas 2 to 4 ft.
.SUN...NW winds 5 to 10 kt. Seas around 2 ft.
.SUN NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. A chance of
rain.
.MON...W winds 5 to 10 kt. Seas 1 foot or less. A chance of rain.
Vsby 1 to 3 NM.
.MON NIGHT...W winds 5 to 10 kt. Seas around 2 ft.
.TUE...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. A chance of rain.
.TUE NIGHT...W winds 20 to 25 kt with gusts up to 30 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.

$$

ANZ230-160100-
Boston Harbor-
716 AM EST Fri Dec 15 2017

.TODAY...SW winds 5 to 10 kt. Waves 1 foot or less.
.TONIGHT...W winds 5 to 10 kt. Gusts up to 20 kt after midnight.
Waves 1 foot or less. Snow likely. Vsby 1 NM or less.
.SAT...W winds 10 to 15 kt with gusts up to 25 kt. Waves around
2 ft.
.SAT NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt,
diminishing to 5 to 10 kt after midnight. Waves around 2 ft.
.SUN...W winds 5 to 10 kt. Waves 1 foot or less.
.SUN NIGHT...W winds around 5 kt. Waves 1 foot or less. A chance
of snow. Vsby 1 to 3 NM.
.MON...W winds around 5 kt. Waves 1 foot or less. A chance of
snow. Vsby 1 to 3 NM.
.MON NIGHT...SW winds around 5 kt. Waves 1 foot or less.
.TUE...SW winds 5 to 10 kt. Waves 1 foot or less. A chance of
rain. Vsby 1 to 3 NM.
.TUE NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Waves
around 2 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.

$$

ANZ236-160100-
Narragansett Bay-
716 AM EST Fri Dec 15 2017

.TODAY...W winds around 5 kt, becoming SW this afternoon. Waves
around 2 ft. A slight chance of snow this afternoon.
.TONIGHT...NW winds 5 to 10 kt. Gusts up to 25 kt after midnight.
Waves around 2 ft. Snow. Vsby 1 NM or less.
.SAT...W winds 10 to 15 kt with gusts up to 30 kt. Waves 2 to
3 ft.
.SAT NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt,
diminishing to 5 to 10 kt after midnight. Waves 2 to 3 ft.
.SUN...NW winds 5 to 10 kt. Waves 1 foot or less.
.SUN NIGHT...NW winds around 5 kt. Waves 1 foot or less. A chance
of snow. Vsby 1 to 3 NM.
.MON...SW winds around 5 kt. Waves 1 foot or less. A chance of
snow. Vsby 1 to 3 NM.
.MON NIGHT...W winds 5 to 10 kt. Waves 1 foot or less.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to
3 ft. A chance of rain.
.TUE NIGHT...W winds 15 to 20 kt with gusts up to 25 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.

$$

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