Coastal Waters Forecast
Issued by NWS Boston, MA

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000
FZUS51 KBOX 201245
CWFBOX

Coastal Waters Forecast
National Weather Service Boston/Norton MA
845 AM EDT Mon Aug 20 2018

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

ANZ200-210115-
845 AM EDT Mon Aug 20 2018

.Synopsis for Massachusetts and Rhode Island coastal waters...
A high pressure ridge builds slowly S across the region today
through Tue. The onshore flow will bring a few showers and patchy
fog especially across the southern waters today. The ridge will push
E Tue night, while low pres crosses the Great Lakes. As the low
moves across the St. Lawrence River valley Wed, its associated
fronts will cross the waters late Wed and Wed night. Large high pres
will build across the waters Thu and Fri.

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.

$$

ANZ250-210115-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
845 AM EDT Mon Aug 20 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.TODAY...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to
5 ft. A chance of showers this morning.
.TONIGHT...NE winds 5 to 10 kt. Seas 2 to 4 ft.
.TUE...E winds around 10 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 10 to 15 kt. Seas 2 to 4 ft. Showers and tstms
likely.
.WED NIGHT...W winds 10 to 15 kt. Seas 2 to 4 ft. A chance of
showers.
.THU...NW winds 5 to 10 kt. Seas 2 to 4 ft.
.THU NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI...W winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI NIGHT...SW 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.

$$

ANZ251-210115-
Massachusetts Bay and Ipswich Bay-
845 AM EDT Mon Aug 20 2018

.TODAY...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft.
.TONIGHT...NE winds 5 to 10 kt. 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 5 to 10 kt. Seas around 2 ft. Showers and tstms
likely.
.WED NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. A chance of
showers.
.THU...NW winds 5 to 10 kt. Seas around 2 ft.
.THU NIGHT...W winds around 5 kt. Seas around 2 ft.
.FRI...SW winds around 5 kt. Seas 1 foot or less.
.FRI NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less.

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.

$$

ANZ231-210115-
Cape Cod Bay-
845 AM EDT Mon Aug 20 2018

.TODAY...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft. A chance of showers with patchy drizzle this morning, then
a slight chance of showers this afternoon. Patchy fog this
morning with vsby 1 to 3 NM.
.TONIGHT...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 around 2 ft. Showers
likely.
.WED...S winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas around 2 ft. Showers and tstms
likely.
.WED NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. A chance of
showers.
.THU...NW winds 5 to 10 kt. Seas around 2 ft.
.THU NIGHT...W winds around 5 kt. Seas 1 foot or less.
.FRI...NE winds around 5 kt. Seas 1 foot or less.
.FRI NIGHT...SW winds around 5 kt. Seas 1 foot or less.

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.

$$

ANZ254-210115-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
845 AM EDT Mon Aug 20 2018

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

.TODAY...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to
6 ft. A chance of showers with patchy drizzle this morning, then
a slight chance of showers this afternoon. Patchy fog this
morning with vsby 1 NM or less.
.TONIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Gusts up to 20 kt. Seas 3 to 5 ft. Patchy fog. Vsby
1 NM or less.
.TUE...E winds around 10 kt. Seas 3 to 4 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. Gusts up to 20 kt in the afternoon.
Seas 3 to 5 ft. Showers and tstms likely.
.WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
becoming NW after midnight. Seas 4 to 6 ft. A chance of showers.
.THU...NW winds 5 to 10 kt. Seas 3 to 5 ft.
.THU NIGHT...W winds around 5 kt. Seas 2 to 4 ft.
.FRI...NW winds around 5 kt. Seas 2 to 4 ft.
.FRI NIGHT...S winds around 5 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.

$$

ANZ255-210115-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
845 AM EDT Mon Aug 20 2018

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

.TODAY...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to
6 ft. A chance of showers with patchy drizzle this morning, then
a slight chance of showers this afternoon. Patchy fog this
morning with vsby 1 NM or less.
.TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Patchy fog. Vsby 1 NM or less.
.TUE...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Patchy fog. Vsby 1 NM or less.
.TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 4 ft. A chance of
showers.
.WED...S winds 10 to 15 kt, becoming SW 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas 4 to 6 ft. Showers and tstms
likely.
.WED NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
NW after midnight. Seas 5 to 7 ft. A chance of showers.
.THU...N winds 5 to 10 kt. Seas 4 to 6 ft.
.THU NIGHT...W winds around 5 kt. Seas 3 to 5 ft.
.FRI...W winds around 5 kt. Seas 2 to 4 ft.
.FRI NIGHT...S winds around 5 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.

$$

ANZ256-210115-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
845 AM EDT Mon Aug 20 2018

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

.TODAY...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to
5 ft. A chance of showers with patchy drizzle this morning, then
a slight chance of showers this afternoon. Patchy fog this
morning with vsby 1 to 3 NM.
.TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft.
.TUE...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft.
.TUE NIGHT...SE winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 4 ft. Showers and tstms likely.
.WED...SW winds 15 to 20 kt. Seas 4 to 6 ft. Showers and tstms
likely.
.WED NIGHT...W winds 15 to 20 kt, becoming NW 10 to 15 kt after
midnight. Seas 5 to 8 ft. A chance of showers.
.THU...NW winds 10 to 15 kt. Seas 4 to 6 ft.
.THU NIGHT...NW winds 5 to 10 kt. Seas 3 to 4 ft.
.FRI...W winds 5 to 10 kt. Seas 2 to 4 ft.
.FRI NIGHT...S 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.

$$

ANZ232-210115-
Nantucket Sound-
845 AM EDT Mon Aug 20 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON...

.TODAY...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft. A chance of showers with patchy drizzle this morning, then
a slight chance of showers this afternoon. Patchy fog this
morning with vsby 1 NM or less.
.TONIGHT...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. Patchy
fog. Vsby 1 NM or less.
.TUE...E winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby
1 to 3 NM.
.TUE NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Showers
likely.
.WED...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 4 ft. Showers and tstms likely.
.WED NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
NW after midnight. Seas 2 to 4 ft. A chance of showers.
.THU...NW winds 5 to 10 kt. Seas 2 to 3 ft.
.THU NIGHT...W winds around 5 kt. Seas 2 to 3 ft.
.FRI...W winds around 5 kt. Seas around 2 ft.
.FRI NIGHT...S winds around 5 kt. Seas 1 foot or less.

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.

$$

ANZ233-210115-
Vineyard Sound-
845 AM EDT Mon Aug 20 2018

.TODAY...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. A chance of showers with patchy drizzle this morning, then
a slight chance of showers this afternoon. Patchy fog this
morning with vsby 1 to 3 NM.
.TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas around 2 ft.
Patchy fog. Vsby 1 to 3 NM.
.TUE...E winds 5 to 10 kt with gusts up to 20 kt. Seas around
2 ft. Patchy fog. Vsby 1 to 3 NM.
.TUE NIGHT...SE winds around 10 kt. Seas around 2 ft. Showers
likely.
.WED...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 4 ft. Showers and tstms likely.
.WED NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 4 ft. A chance of showers.
.THU...NW winds 5 to 10 kt. Seas 2 to 3 ft.
.THU NIGHT...W winds 5 to 10 kt. Seas around 2 ft.
.FRI...W winds around 5 kt. Seas around 2 ft.
.FRI NIGHT...SW 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.

$$

ANZ234-210115-
Buzzards Bay-
845 AM EDT Mon Aug 20 2018

.TODAY...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. Showers likely with patchy drizzle this morning, then a
slight chance of showers this afternoon. Patchy fog this morning
with vsby 1 to 3 NM.
.TONIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt in the evening.
Seas 1 foot or less. Patchy fog. Vsby 1 to 3 NM.
.TUE...E winds 5 to 10 kt. Seas 1 foot or less. Patchy fog. Vsby
1 to 3 NM.
.TUE NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. Showers
likely.
.WED...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft. Showers and tstms likely.
.WED NIGHT...W winds 10 to 15 kt, becoming NW 5 to 10 kt after
midnight. Seas 2 to 3 ft. A chance of showers.
.THU...NW winds 5 to 10 kt. Seas 2 to 3 ft.
.THU NIGHT...W winds 5 to 10 kt. Seas around 2 ft.
.FRI...W winds around 5 kt. Seas around 2 ft.
.FRI NIGHT...SW winds around 5 kt. Seas 1 foot or less.

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.

$$

ANZ235-210115-
Rhode Island Sound-
845 AM EDT Mon Aug 20 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON...

.TODAY...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. A chance of showers with patchy drizzle this morning, then
a slight chance of showers this afternoon. Patchy fog this
morning with vsby 1 to 3 NM.
.TONIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Gusts up to 20 kt. Seas 2 to 4 ft.
.TUE...E winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft.
.TUE NIGHT...SE winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft. Showers and tstms likely.
.WED...S winds 10 to 15 kt, becoming SW 15 to 20 kt in the
afternoon. Seas 3 to 5 ft. Showers and tstms likely.
.WED NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 4 to 6 ft. A chance of showers.
.THU...NW winds 10 to 15 kt. Seas 3 to 5 ft.
.THU NIGHT...NW winds 5 to 10 kt. Seas 2 to 4 ft.
.FRI...W winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI NIGHT...S 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.

$$

ANZ237-210115-
Block Island Sound-
845 AM EDT Mon Aug 20 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON...

.TODAY...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. A slight chance of showers this morning.
.TONIGHT...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. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft.
.TUE NIGHT...SE winds around 10 kt. Seas around 2 ft. Showers and
tstms likely.
.WED...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 3 to 5 ft. Showers and tstms likely.
.WED NIGHT...NW winds 10 to 15 kt. Seas 3 to 5 ft.
.THU...NW winds 5 to 10 kt. Seas 2 to 4 ft.
.THU NIGHT...NW winds 5 to 10 kt. Seas 2 to 4 ft.
.FRI...W winds around 5 kt. Seas 2 to 3 ft.
.FRI NIGHT...S winds around 5 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.

$$

ANZ230-210115-
Boston Harbor-
845 AM EDT Mon Aug 20 2018

.TODAY...NE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to
4 ft.
.TONIGHT...NE winds 5 to 10 kt. Waves 2 to 3 ft.
.TUE...E winds 5 to 10 kt. Waves 1 foot or less.
.TUE NIGHT...SE winds around 5 kt. Waves 1 foot or less. A chance
of showers.
.WED...SW winds 5 to 10 kt. Waves 1 foot or less. Showers and
tstms likely.
.WED NIGHT...NW winds 5 to 10 kt. Waves 1 foot or less.
.THU...NW winds around 5 kt. Waves 1 foot or less.
.THU NIGHT...W winds around 5 kt. Waves 1 foot or less.
.FRI...SW winds around 5 kt. Waves 1 foot or less.
.FRI NIGHT...SW 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.

$$

ANZ236-210115-
Narragansett Bay-
845 AM EDT Mon Aug 20 2018

.TODAY...NE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to
3 ft. Patchy fog this morning. A slight chance of showers this
morning with vsby 1 to 3 NM.
.TONIGHT...NE winds 5 to 10 kt. Waves around 2 ft.
.TUE...E winds 5 to 10 kt. Waves around 2 ft.
.TUE NIGHT...SE winds 5 to 10 kt. Waves around 2 ft. Showers and
tstms likely.
.WED...S winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up
to 20 kt in the afternoon. Waves 2 to 3 ft. Showers and tstms
likely.
.WED NIGHT...NW winds 5 to 10 kt. Waves 2 to 3 ft. A chance of
showers.
.THU...NW winds 5 to 10 kt. Waves 2 to 3 ft.
.THU NIGHT...NW winds around 5 kt. Waves around 2 ft.
.FRI...W winds around 5 kt. Waves around 2 ft.
.FRI NIGHT...SW winds around 5 kt. Waves around 2 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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