Coastal Waters Forecast
Issued by NWS Boston, MA

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000
FZUS51 KBOX 180516
CWFBOX

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

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

ANZ200-181800-
116 AM EDT Fri Aug 18 2017

.Synopsis for Massachusetts and Rhode Island coastal waters...
Weak high pressure off the coast will move farther offshore tonight.
A warm front will lift north across the region Friday morning and a
cold front will pass from west to east across the waters early
Saturday. Showers and thunderstorms will be widespread Friday into
Saturday morning across the waters, along with areas of fog. High
pressure will return on Sunday 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.

$$

ANZ250-181800-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
116 AM EDT Fri Aug 18 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...

.REST OF TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI...S winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up
to 25 kt in the afternoon. Seas 2 to 4 ft. Patchy fog. A chance
of showers. Vsby 1 to 3 NM.
.FRI NIGHT...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 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog. A
chance of showers. 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. Gusts up to 20 kt in the morning. 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 around 2 ft.
.MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
.TUE...SW winds 10 to 15 kt. Seas around 2 ft.
.TUE NIGHT...SW winds 10 to 15 kt with gusts up to 25 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.

$$

ANZ251-181800-
Massachusetts Bay and Ipswich Bay-
116 AM EDT Fri Aug 18 2017

.REST OF TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI...S winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up
to 25 kt in the afternoon. Seas around 2 ft. Patchy fog. A chance
of showers. Vsby 1 to 3 NM.
.FRI NIGHT...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 3 ft. Patchy fog. Vsby 1 to
3 NM.
.SAT NIGHT...W winds 5 to 10 kt. Seas around 2 ft.
.SUN...W winds 5 to 10 kt. Gusts up to 20 kt in the morning. 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 1 foot or less.
.TUE NIGHT...SW winds 5 to 10 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.

$$

ANZ231-181800-
Cape Cod Bay-
116 AM EDT Fri Aug 18 2017

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

.REST OF TONIGHT...S winds 5 to 10 kt. Seas 1 foot or less.
.FRI...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 25 kt in the afternoon. Seas around 2 ft. A chance of
showers.
.FRI NIGHT...S winds 10 to 15 kt with gusts up to 30 kt. Seas
2 to 4 ft. Patchy fog. Showers with tstms likely. Some tstms may
produce heavy rainfall. Vsby 1 NM or less.
.SAT...S winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. Gusts up to 20 kt. Seas around 2 ft. Patchy fog. A
chance of showers. Vsby 1 to 3 NM.
.SAT NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the
evening. 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 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 1 foot or less.
.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.

$$

ANZ254-181800-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
116 AM EDT Fri Aug 18 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE
TONIGHT...

.REST OF TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. Seas 2 to 3 ft.
.FRI NIGHT...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 30 kt. Seas 4 to 6 ft. Patchy fog. A
chance of showers. Vsby 1 NM or less.
.SAT NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Seas 3 to 5 ft.
.SUN...W winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas
2 to 4 ft.
.SUN NIGHT...W winds 5 to 10 kt. Seas around 2 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 around 2 ft.
.TUE NIGHT...SW winds 10 to 15 kt with gusts up to 25 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.

$$

ANZ255-181800-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
116 AM EDT Fri Aug 18 2017

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

.REST OF TONIGHT...S winds around 5 kt. Seas 2 to 3 ft.
.FRI...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. Seas 2 to 4 ft.
.FRI NIGHT...S winds 10 to 15 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 10 to 15 kt with gusts up to 30 kt. Seas 4 to
6 ft. Patchy fog. A chance of showers. Vsby 1 NM or less.
.SAT NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Seas 3 to 5 ft.
.SUN...W winds 5 to 10 kt. Seas 2 to 4 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 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.

$$

ANZ256-181800-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
116 AM EDT Fri Aug 18 2017

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

.REST OF TONIGHT...S winds 5 to 10 kt. Seas around 3 ft.
.FRI...S winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to
5 ft. Patchy fog. Vsby 1 to 3 NM.
.FRI NIGHT...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 15 to 20 kt, diminishing to 5 to 10 kt in the
afternoon. Gusts up to 25 kt. Seas 4 to 6 ft. Patchy fog. A
chance of showers. Vsby 1 to 3 NM.
.SAT NIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the
evening. 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 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 25 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.

$$

ANZ232-181800-
Nantucket Sound-
116 AM EDT Fri Aug 18 2017

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

.REST OF TONIGHT...S winds 5 to 10 kt. Seas 1 foot or less.
.FRI...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. Seas around 2 ft.
.FRI NIGHT...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 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Patchy fog. A chance of showers. Vsby 1 NM or less.
.SAT NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 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 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.

$$

ANZ233-181800-
Vineyard Sound-
116 AM EDT Fri Aug 18 2017

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

.REST OF TONIGHT...S winds 5 to 10 kt. Seas 1 foot or less.
.FRI...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. Seas around 2 ft. A chance of
showers.
.FRI NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas
3 to 5 ft. Patchy fog. Showers with tstms likely. 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. Patchy fog. A chance of showers. Vsby 1 to 3 NM.
.SAT NIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the
evening. 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 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 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.

$$

ANZ234-181800-
Buzzards Bay-
116 AM EDT Fri Aug 18 2017

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

.REST OF TONIGHT...S winds around 5 kt. Seas 1 foot or less.
.FRI...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 25 kt in the afternoon. Seas around 2 ft. A chance of
showers.
.FRI NIGHT...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 tstms likely. Some tstms may produce heavy rainfall.
Vsby 1 NM or less.
.SAT...S winds 10 to 15 kt with gusts up to 20 kt, becoming SW
5 to 10 kt in the afternoon. Seas around 2 ft. Patchy fog. A
chance of showers. Vsby 1 to 3 NM.
.SAT NIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the
evening. 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 with gusts up to 20 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.

$$

ANZ235-181800-
Rhode Island Sound-
116 AM EDT Fri Aug 18 2017

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

.REST OF TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. A chance of showers.
.FRI NIGHT...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, becoming SW 5 to 10 kt in the
afternoon. Seas 3 to 5 ft. Patchy fog. A chance of showers. 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 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. 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.

$$

ANZ237-181800-
Block Island Sound-
116 AM EDT Fri Aug 18 2017

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

.REST OF TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM.
.FRI NIGHT...S winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. 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, diminishing to 5 to 10 kt in the
afternoon. Gusts up to 20 kt. Seas 3 to 5 ft. Patchy fog. 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...NW 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 25 kt. Seas
2 to 3 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.

$$

ANZ230-181800-
Boston Harbor-
116 AM EDT Fri Aug 18 2017

.REST OF TONIGHT...SW winds 5 to 10 kt. Waves 1 foot or less.
.FRI...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Waves around 2 ft. Patchy fog. A chance of showers. Vsby 1 to
3 NM.
.FRI NIGHT...S winds 5 to 10 kt with gusts up to 20 kt. Waves
around 2 ft. Patchy fog. Showers likely 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. Patchy fog. 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...NW 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 with gusts up to 20 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.

$$

ANZ236-181800-
Narragansett Bay-
116 AM EDT Fri Aug 18 2017

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

.REST OF TONIGHT...S winds around 5 kt. Waves around 2 ft.
.FRI...S winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Gusts up to 20 kt. Waves around 2 ft. Patchy fog. A
chance of showers. Vsby 1 to 3 NM.
.FRI NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Waves
2 to 3 ft. Patchy fog. Showers likely with a chance of tstms.
Some tstms may produce heavy rainfall. Vsby 1 NM or less.
.SAT...SW winds 5 to 10 kt. Waves 2 to 3 ft. Patchy fog. A chance
of showers. Vsby 1 to 3 NM.
.SAT NIGHT...W winds 5 to 10 kt. 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.
.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 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.

$$

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