Coastal Waters Forecast
Issued by NWS Boston, MA

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000
FZUS51 KBOX 181406
CWFBOX

Coastal Waters Forecast
National Weather Service Boston/Norton MA
1006 AM EDT Sat Aug 18 2018

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

ANZ200-190315-
1006 AM EDT Sat Aug 18 2018

.Synopsis for Massachusetts and Rhode Island coastal waters...
Low pres will move across northern New England today, pushing its
associated cold front across the waters. The front will stall
across the southern waters tonight through Mon, with weak low pres
waves moving along it. However the low will generate NE winds up
to 25 kt at times especially across the southern waters. The high
will build N of the waters through Tue. Another front will
approach the waters during Wed.

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.

$$

ANZ250-190315-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1006 AM EDT Sat Aug 18 2018

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

.THIS AFTERNOON...SW winds 10 to 15 kt, diminishing to 5 to
10 kt. Seas 2 to 3 ft. A slight chance of showers with isolated
tstms, then showers likely with a chance of tstms. Some tstms may
produce gusty winds and heavy rainfall with vsby 1 to 3 NM.
.TONIGHT...NE 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 gusty winds and heavy rainfall. Vsby 1 to 3 NM.
.SUN...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. A chance of showers.
.SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 ft.
.MON...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft.
.MON NIGHT...NE winds 5 to 10 kt. Seas 3 to 4 ft.
.TUE...E winds 5 to 10 kt. Seas 2 to 4 ft.
.TUE NIGHT...SE winds 5 to 10 kt. Seas 3 to 4 ft. A chance of
showers.
.WED...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. A chance of showers.
.WED NIGHT...W winds 10 to 15 kt. Seas 3 to 5 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.

$$

ANZ251-190315-
Massachusetts Bay and Ipswich Bay-
1006 AM EDT Sat Aug 18 2018

...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH
SUNDAY AFTERNOON...

.THIS AFTERNOON...W winds 5 to 10 kt. Seas 1 foot or less. A
slight chance of showers with isolated tstms, then showers likely
with a chance of tstms. Some tstms may produce gusty winds and
heavy rainfall.
.TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Showers likely with a chance of tstms. Some tstms may
produce gusty winds and heavy rainfall. Vsby 1 to 3 NM.
.SUN...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. A chance of showers.
.SUN NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Gusts up to 20 kt. Seas 2 to 4 ft.
.MON...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft.
.MON NIGHT...NE winds 5 to 10 kt. Seas 2 to 4 ft.
.TUE...E winds around 5 kt. Seas 2 to 4 ft.
.TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 4 ft. A chance of
showers.
.WED...S winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers
and tstms.
.WED NIGHT...W winds 5 to 10 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.

$$

ANZ231-190315-
Cape Cod Bay-
1006 AM EDT Sat Aug 18 2018

.THIS AFTERNOON...SW winds 5 to 10 kt. Seas 1 foot or less. A
chance of showers with a slight chance of tstms. Some tstms may
produce gusty winds and heavy rainfall.
.TONIGHT...N winds 5 to 10 kt, becoming NE 10 to 15 kt with gusts
up to 20 kt after midnight. Seas 2 to 3 ft. A chance of showers
and tstms. Some tstms may produce gusty winds and heavy rainfall.
Vsby 1 to 3 NM.
.SUN...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. A chance of showers.
.SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. A chance of showers.
.MON...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft.
.MON NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft.
.TUE...E winds 5 to 10 kt. Seas around 2 ft.
.TUE NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. A chance
of showers.
.WED...S winds 10 to 15 kt with gusts up to 20 kt. Seas 1 foot or
less. A chance of showers.
.WED NIGHT...W winds 5 to 10 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.

$$

ANZ254-190315-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1006 AM EDT Sat Aug 18 2018

...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH
SUNDAY AFTERNOON...

.THIS AFTERNOON...SW winds 10 to 15 kt. Gusts up to 20 kt. Seas
2 to 4 ft. A slight chance of showers with isolated tstms. A
chance of showers with a slight chance of tstms. Some tstms may
produce gusty winds and heavy rainfall.
.TONIGHT...W winds 5 to 10 kt, becoming N 10 to 15 kt with gusts
up to 20 kt after midnight. Seas 2 to 4 ft. Patchy fog. A chance
of showers. Vsby 1 NM or less.
.SUN...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to
5 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM.
.SUN NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas
3 to 5 ft. A chance of showers. Vsby 1 to 3 NM.
.MON...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to
6 ft. A chance of showers.
.MON NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas 3 to 5 ft.
.TUE...NE winds 5 to 10 kt. Seas 3 to 5 ft.
.TUE NIGHT...SE winds 5 to 10 kt. Seas 3 to 4 ft.
.WED...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. A chance of showers.
.WED NIGHT...W winds 10 to 15 kt. Seas 4 to 6 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.

$$

ANZ255-190315-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1006 AM EDT Sat Aug 18 2018

...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH
SUNDAY AFTERNOON...

.THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. A slight chance of showers. Isolated tstms. Some
tstms may produce gusty winds and heavy rainfall.
.TONIGHT...W winds 5 to 10 kt, becoming N 10 to 15 kt after
midnight. Gusts up to 20 kt. Seas 2 to 4 ft. Patchy fog. A chance
of showers. Vsby 1 NM or less.
.SUN...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to
5 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM.
.SUN NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas
3 to 5 ft. A chance of showers. Vsby 1 to 3 NM.
.MON...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to
6 ft. A chance of showers.
.MON NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas 3 to 5 ft.
.TUE...NE winds 5 to 10 kt. Seas 3 to 5 ft.
.TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 4 ft. A chance of
showers.
.WED...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. A chance of showers and tstms.
.WED NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas
4 to 7 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.

$$

ANZ256-190315-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1006 AM EDT Sat Aug 18 2018

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

.THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas around 3 ft. A slight chance of showers with isolated tstms.
A chance of showers with a slight chance of tstms. Some tstms may
produce gusty winds and heavy rainfall.
.TONIGHT...W winds 10 to 15 kt, becoming N after midnight. Gusts
up to 25 kt. Seas 3 to 4 ft. Patchy fog. A chance of showers.
Vsby 1 NM or less.
.SUN...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. A chance of showers.
.SUN NIGHT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. A chance of
showers.
.MON...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. A chance of showers.
.MON NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 3 to 5 ft.
.TUE...E winds 5 to 10 kt. Seas 3 to 4 ft.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. A chance of
showers.
.WED...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. A chance of showers and tstms.
.WED NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas
4 to 7 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.

$$

ANZ232-190315-
Nantucket Sound-
1006 AM EDT Sat Aug 18 2018

.THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 1 to 2 ft. A chance of showers with a slight chance of
tstms. Some tstms may produce gusty winds and heavy rainfall.
.TONIGHT...NW winds 5 to 10 kt, becoming N 10 to 15 kt with gusts
up to 20 kt after midnight. Seas around 2 ft. Patchy fog. A
chance of showers. Vsby 1 to 3 NM.
.SUN...NE winds 10 to 15 kt with gusts up to 25 kt. Seas around
2 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM.
.SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. A chance of showers.
.MON...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. A chance of showers.
.MON NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft.
.TUE...E winds 5 to 10 kt. Seas 2 to 3 ft.
.TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers.
.WED...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. A chance of showers and tstms.
.WED NIGHT...W winds 10 to 15 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.

$$

ANZ233-190315-
Vineyard Sound-
1006 AM EDT Sat Aug 18 2018

...SMALL CRAFT ADVISORY IN EFFECT SUNDAY AFTERNOON...

.THIS AFTERNOON...SW winds 10 to 15 kt. Gusts up to 20 kt. Seas
2 to 3 ft. A chance of showers with a slight chance of tstms.
Some tstms may produce gusty winds and heavy rainfall.
.TONIGHT...NW winds 5 to 10 kt, becoming NE 10 to 15 kt with
gusts up to 20 kt after midnight. Seas around 2 ft. Patchy fog.
Showers likely with a chance of tstms. Some tstms may produce
gusty winds and heavy rainfall. Vsby 1 to 3 NM.
.SUN...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft. A chance of showers.
.SUN NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 3 ft. A chance of showers.
.MON...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. A chance of showers.
.MON NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft.
.TUE...E winds 5 to 10 kt. Seas around 2 ft.
.TUE NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. A chance of
showers.
.WED...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. A chance of showers and tstms.
.WED NIGHT...W winds 10 to 15 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.

$$

ANZ234-190315-
Buzzards Bay-
1006 AM EDT Sat Aug 18 2018

...SMALL CRAFT ADVISORY IN EFFECT SUNDAY AFTERNOON...

.THIS AFTERNOON...SW winds 10 to 15 kt. Gusts up to 20 kt. Seas
2 to 3 ft. A chance of showers with a slight chance of tstms.
Some tstms may produce gusty winds and heavy rainfall.
.TONIGHT...NW winds 5 to 10 kt, becoming NE 10 to 15 kt with
gusts up to 20 kt after midnight. Seas around 2 ft. Patchy fog.
Showers likely with a chance of tstms. Some tstms may produce
gusty winds and heavy rainfall. Vsby 1 to 3 NM.
.SUN...NE winds 10 to 15 kt with gusts up to 25 kt. Seas around
2 ft. A chance of showers.
.SUN NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Gusts up to 25 kt. Seas around 2 ft. A chance of
showers.
.MON...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. A chance of showers.
.MON NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft.
.TUE...E winds 5 to 10 kt. Seas 1 foot or less.
.TUE NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. A chance
of showers.
.WED...S winds 10 to 15 kt. Seas around 2 ft. A chance of showers
and tstms.
.WED NIGHT...W winds 5 to 10 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.

$$

ANZ235-190315-
Rhode Island Sound-
1006 AM EDT Sat Aug 18 2018

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

.THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. A chance of showers with a slight chance of
tstms. Some tstms may produce gusty winds and heavy rainfall.
.TONIGHT...W winds 5 to 10 kt, becoming NE 10 to 15 kt after
midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Patchy fog. Showers
likely with a chance of tstms. Some tstms may produce gusty winds
and heavy rainfall. Vsby 1 NM or less.
.SUN...NE winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. A chance of
showers.
.SUN NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 4 ft. A chance of showers.
.MON...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. A chance of showers.
.MON NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft.
.TUE...E winds 5 to 10 kt. Seas 2 to 4 ft.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers.
.WED...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. A chance of showers and tstms.
.WED NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 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.

$$

ANZ237-190315-
Block Island Sound-
1006 AM EDT Sat Aug 18 2018

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

.THIS AFTERNOON...SW winds around 10 kt. Gusts up to 20 kt. Seas
2 to 3 ft. A slight chance of showers with isolated tstms, then a
chance of showers with a slight chance of tstms. Some tstms may
produce gusty winds and heavy rainfall.
.TONIGHT...W winds 5 to 10 kt, becoming NE 10 to 15 kt with gusts
up to 20 kt after midnight. Seas 2 to 3 ft. Patchy fog. Showers
likely with a chance of tstms. Some tstms may produce gusty winds
and heavy rainfall. Vsby 1 NM or less.
.SUN...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. A chance of showers.
.SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. A chance of showers.
.MON...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. A chance of showers.
.MON NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Seas 2 to 4 ft.
.TUE...E winds 5 to 10 kt. Seas 2 to 4 ft.
.TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers.
.WED...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. A chance of showers and tstms.
.WED NIGHT...W winds 5 to 10 kt. Seas 3 to 5 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.

$$

ANZ230-190315-
Boston Harbor-
1006 AM EDT Sat Aug 18 2018

.THIS AFTERNOON...W winds 5 to 10 kt. Waves 1 foot or less. A
slight chance of showers with isolated tstms, then showers likely
with a chance of tstms. Some tstms may produce gusty winds and
heavy rainfall.
.TONIGHT...NE winds 5 to 10 kt. Waves around 2 ft. Showers likely
with a chance of tstms. Some tstms may produce gusty winds and
heavy rainfall. Vsby 1 to 3 NM.
.SUN...NE winds 10 to 15 kt with gusts up to 20 kt. Waves around
2 ft. A chance of showers.
.SUN NIGHT...NE winds 5 to 10 kt. Waves around 2 ft. A chance of
showers.
.MON...NE winds 5 to 10 kt with gusts up to 20 kt. Waves around
2 ft.
.MON NIGHT...NE winds around 5 kt. Waves 1 foot or less.
.TUE...E winds around 5 kt. Waves 1 foot or less.
.TUE NIGHT...SE winds around 5 kt. Waves 1 foot or less. A chance
of showers.
.WED...S winds 5 to 10 kt. Waves 1 foot or less. Showers likely
with a chance of tstms.
.WED NIGHT...W winds around 5 kt. Waves 1 foot or less.

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.

$$

ANZ236-190315-
Narragansett Bay-
1006 AM EDT Sat Aug 18 2018

.THIS AFTERNOON...SW winds 5 to 10 kt. Waves 1 to 2 ft. A slight
chance of showers with isolated tstms, then a chance of showers
with a slight chance of tstms. Some tstms may produce gusty winds
and heavy rainfall.
.TONIGHT...NW winds 5 to 10 kt, becoming NE after midnight. Waves
around 2 ft. Showers likely with a chance of tstms. Some tstms
may produce gusty winds and heavy rainfall. Vsby 1 to 3 NM.
.SUN...NE winds 10 to 15 kt with gusts up to 20 kt. Waves around
2 ft. A chance of showers.
.SUN NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt. Waves
around 2 ft. A chance of showers.
.MON...NE winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to
3 ft.
.MON NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Waves 2 to 3 ft.
.TUE...E winds around 5 kt. Waves around 2 ft.
.TUE NIGHT...SE winds 5 to 10 kt. Waves around 2 ft. A chance of
showers.
.WED...S winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers
and tstms.
.WED NIGHT...W winds 5 to 10 kt. Waves 2 to 3 ft.

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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