Coastal Waters Forecast
Issued by NWS Boston, MA

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FZUS51 KBOX 201716
CWFBOX

Coastal Waters Forecast
National Weather Service Boston/Norton MA
116 PM EDT Fri Apr 20 2018

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

ANZ200-210600-
116 PM EDT Fri Apr 20 2018

.Synopsis for Massachusetts and Rhode Island coastal waters...
Low pressure heads NE towards New Foundland this afternoon with
gusty northwest winds wrapping around it. High pressure will build
over the waters this weekend lasting into Monday, then shifting
offshore on Tuesday. Low pressure will move north along the eastern
seaboard Tuesday night and Wednesday, lifting over the waters on
Thursday.

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.

$$

ANZ250-210600-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
116 PM EDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...NW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft.
.TONIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft.
.SAT...NW winds 10 to 15 kt with gusts up to 20 kt, becoming W
5 to 10 kt in the afternoon. Seas 2 to 4 ft.
.SAT NIGHT...NW winds 5 to 10 kt. Seas around 2 ft.
.SUN...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas
around 2 ft.
.SUN NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas around 2 ft.
.MON...W winds 5 to 10 kt. Seas around 2 ft.
.MON NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.TUE...SW winds 10 to 15 kt. Seas 2 to 4 ft.
.TUE NIGHT...S winds 10 to 15 kt. Seas 2 to 4 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.

$$

ANZ251-210600-
Massachusetts Bay and Ipswich Bay-
116 PM EDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...NW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft.
.TONIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft.
.SAT...NW winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. Gusts up to 20 kt. Seas around 2 ft.
.SAT NIGHT...NW winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft.
.SUN...NW winds 5 to 10 kt, becoming S in the afternoon. Seas
around 2 ft.
.SUN NIGHT...SW winds around 5 kt, becoming NW after midnight.
Seas 1 foot or less.
.MON...SW winds 5 to 10 kt. Seas around 2 ft.
.MON NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.TUE...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.TUE NIGHT...S winds 5 to 10 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.

$$

ANZ231-210600-
Cape Cod Bay-
116 PM EDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...NW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft.
.TONIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft.
.SAT...NW winds 10 to 15 kt with gusts up to 20 kt, diminishing
to 5 to 10 kt in the afternoon. Seas 2 to 3 ft.
.SAT NIGHT...NW winds 5 to 10 kt. Seas around 2 ft.
.SUN...NW winds 5 to 10 kt, becoming NE in the afternoon. Seas
around 2 ft.
.SUN NIGHT...SW winds around 5 kt, becoming NW after midnight.
Seas 1 foot or less.
.MON...NE winds 5 to 10 kt. Seas 1 foot or less.
.MON NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less.
.TUE...S winds 5 to 10 kt. Seas 1 foot or less.
.TUE NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. 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.

$$

ANZ254-210600-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
116 PM EDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...NW winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 5 ft.
.TONIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft.
.SAT...NW winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. Gusts up to 20 kt. Seas 2 to 4 ft.
.SAT NIGHT...NW winds 5 to 10 kt. Seas around 2 ft.
.SUN...NW winds 5 to 10 kt. Seas 2 to 3 ft.
.SUN NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas
around 2 ft.
.MON...N winds 5 to 10 kt. Seas around 2 ft.
.MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
.TUE...S winds 5 to 10 kt. Seas 2 to 3 ft.
.TUE NIGHT...S winds 10 to 15 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.

$$

ANZ255-210600-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
116 PM EDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...W winds 10 to 15 kt with gusts up to 25 kt.
Seas 4 to 6 ft.
.TONIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.SAT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft.
.SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
NW 5 to 10 kt after midnight. 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...NE winds 5 to 10 kt. Seas around 2 ft.
.MON NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.TUE...S winds 5 to 10 kt. Seas around 2 ft.
.TUE NIGHT...SE winds 10 to 15 kt with gusts up to 20 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.

$$

ANZ256-210600-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
116 PM EDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...W winds around 15 kt with gusts up to 25 kt.
Seas 4 to 6 ft.
.TONIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.SAT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft.
.SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
N after midnight. Seas 2 to 3 ft.
.SUN...NW winds 5 to 10 kt, becoming SW 10 to 15 kt in the
afternoon. Seas 2 to 3 ft.
.SUN NIGHT...SW winds 10 to 15 kt, becoming NW 5 to 10 kt after
midnight. Seas 2 to 3 ft.
.MON...SW winds 5 to 10 kt. Seas around 2 ft.
.MON NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.TUE...S winds 5 to 10 kt. Seas around 2 ft.
.TUE NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 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.

$$

ANZ232-210600-
Nantucket Sound-
116 PM EDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...NW winds around 10 kt with gusts up to 20 kt.
Seas 2 to 3 ft.
.TONIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft.
.SAT...NW winds 10 to 15 kt, becoming W 5 to 10 kt in the
afternoon. Gusts up to 20 kt. Seas around 2 ft.
.SAT NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas
around 2 ft.
.SUN...NW winds 5 to 10 kt, becoming W in the afternoon. Seas
1 foot or less.
.SUN NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas 1 foot or less.
.MON...NE winds 5 to 10 kt. Seas 1 foot or less.
.MON NIGHT...S winds 5 to 10 kt. Seas 1 foot or less.
.TUE...S winds 5 to 10 kt. Seas 1 foot or less.
.TUE NIGHT...S winds 10 to 15 kt. Seas 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.

$$

ANZ233-210600-
Vineyard Sound-
116 PM EDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...NW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft.
.TONIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft.
.SAT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft.
.SAT NIGHT...NW winds 5 to 10 kt. Seas around 2 ft.
.SUN...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas
around 2 ft.
.SUN NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas around 2 ft.
.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...S winds 5 to 10 kt. Seas 1 foot or less.
.TUE NIGHT...S winds 10 to 15 kt. Seas 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.

$$

ANZ234-210600-
Buzzards Bay-
116 PM EDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...NW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft.
.TONIGHT...NW winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Gusts up to 20 kt. Seas 2 to 3 ft.
.SAT...W winds 5 to 10 kt with gusts up to 20 kt. Seas 1 foot or
less.
.SAT NIGHT...NW winds 5 to 10 kt. Seas 1 foot or less.
.SUN...NW winds 5 to 10 kt, becoming W in the afternoon. Seas
1 foot or less.
.SUN NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
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...S winds 5 to 10 kt. Seas 1 foot or less.
.TUE NIGHT...S winds 5 to 10 kt. Seas 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.

$$

ANZ235-210600-
Rhode Island Sound-
116 PM EDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...

.THIS AFTERNOON...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 5 ft.
.TONIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft.
.SAT...NW winds 10 to 15 kt, becoming W in the afternoon. Gusts
up to 20 kt. Seas 2 to 3 ft.
.SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
NW 5 to 10 kt after midnight. Seas around 2 ft.
.SUN...NW winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 2 to 3 ft.
.SUN NIGHT...W winds 10 to 15 kt, becoming NW 5 to 10 kt after
midnight. 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...S winds 5 to 10 kt. Seas around 2 ft.
.TUE NIGHT...SE winds 10 to 15 kt with gusts up to 20 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.

$$

ANZ237-210600-
Block Island Sound-
116 PM EDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...

.THIS AFTERNOON...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft.
.TONIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft.
.SAT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft.
.SAT NIGHT...NW winds 5 to 10 kt. Seas around 2 ft.
.SUN...NW winds 5 to 10 kt, becoming SW 10 to 15 kt in the
afternoon. Seas around 2 ft.
.SUN NIGHT...W winds 5 to 10 kt, becoming NW after midnight. 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...S winds 5 to 10 kt. Seas around 2 ft.
.TUE NIGHT...SE winds 10 to 15 kt with gusts up to 20 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.

$$

ANZ230-210600-
Boston Harbor-
116 PM EDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...

.THIS AFTERNOON...NW winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft.
.TONIGHT...NW winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Gusts up to 25 kt. Waves around 2 ft.
.SAT...NW winds 5 to 10 kt with gusts up to 20 kt. Waves 1 foot
or less.
.SAT NIGHT...NW winds 5 to 10 kt. Waves 1 foot or less.
.SUN...NW winds 5 to 10 kt. Waves 1 foot or less.
.SUN NIGHT...NW winds around 5 kt. Waves 1 foot or less.
.MON...SW winds around 5 kt. Waves 1 foot or less.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 foot or less.
.TUE...SW winds 5 to 10 kt. Waves 1 foot or less.
.TUE NIGHT...S winds 5 to 10 kt. Waves 1 foot or less. 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.

$$

ANZ236-210600-
Narragansett Bay-
116 PM EDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING...

.THIS AFTERNOON...NW winds 10 to 15 kt with gusts up to 20 kt.
Waves 2 to 3 ft.
.TONIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to
3 ft.
.SAT...NW winds 5 to 10 kt. Gusts up to 20 kt in the morning.
Waves around 2 ft.
.SAT NIGHT...NW winds 5 to 10 kt. Waves 1 foot or less.
.SUN...W winds 5 to 10 kt. Waves around 2 ft.
.SUN NIGHT...W winds 5 to 10 kt, becoming NW after midnight.
Waves around 2 ft.
.MON...W winds around 5 kt. Waves 1 foot or less.
.MON NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less.
.TUE...S winds 5 to 10 kt. Waves around 2 ft.
.TUE NIGHT...S winds 5 to 10 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.

$$

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