Coastal Waters Forecast
Issued by NWS Boston, MA

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000
FZUS51 KBOX 181116
CWFBOX

Coastal Waters Forecast
National Weather Service Taunton MA
716 AM EDT Tue Jul 18 2017

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

ANZ200-190000-
716 AM EDT Tue Jul 18 2017

.Synopsis for Massachusetts and Rhode Island coastal waters...
Weak high pressure shifts offshore, providing a light south to
southwest flow of warm humid air over the waters for much of the
week. Locally dense fog may limit visibility each night. A weak
cold front will move across the waters Thursday. A warm front will
move north of the waters by Sunday.

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.

$$

ANZ250-190000-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
716 AM EDT Tue Jul 18 2017

.TODAY...S winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog this
morning, then areas of fog this afternoon. Isolated showers and
tstms this afternoon. Some tstms may produce heavy rainfall this
afternoon. Vsby 1 NM or less.
.TONIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. Areas of fog.
Vsby 1 NM or less.
.WED...SW winds 5 to 10 kt, becoming S 15 to 20 kt in the
afternoon. Seas 2 to 3 ft. Areas of fog. Vsby 1 to 3 NM.
.WED NIGHT...S winds 10 to 15 kt with gusts up to 20 kt, becoming
SW 5 to 10 kt after midnight. Seas 2 to 4 ft. Patchy fog. Vsby
1 NM or less.
.THU...W winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to
3 ft. Patchy fog. Vsby 1 NM or less.
.THU NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
.FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft.
.SAT...SW winds 5 to 10 kt. Seas around 2 ft.
.SAT NIGHT...S 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.

$$

ANZ251-190000-
Massachusetts Bay and Ipswich Bay-
716 AM EDT Tue Jul 18 2017

.TODAY...S winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts
up to 20 kt this afternoon. Seas 2 to 3 ft. Patchy fog this
morning. Scattered showers with isolated tstms this afternoon.
Some tstms may produce heavy rainfall this afternoon. Vsby 1 NM
or less this morning.
.TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Scattered
showers.
.WED...SW winds around 5 kt, becoming S 15 to 20 kt in the
afternoon. Seas 2 to 3 ft.
.WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft.
.THU...W winds around 5 kt, becoming S in the afternoon. Seas
around 2 ft.
.THU NIGHT...SW winds around 5 kt. Seas around 2 ft.
.FRI...W winds around 5 kt. Seas 1 foot or less.
.FRI NIGHT...W winds around 5 kt. Seas 1 foot or less.
.SAT...SW winds around 5 kt. Seas 1 foot or less. A chance of
showers.
.SAT 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.

$$

ANZ231-190000-
Cape Cod Bay-
716 AM EDT Tue Jul 18 2017

.TODAY...S winds around 5 kt, increasing to 5 to 10 kt with gusts
up to 20 kt this afternoon. Seas 1 to 2 ft. Areas of fog this
morning with vsby 1 NM or less.
.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Areas of fog.
Vsby 1 to 3 NM.
.WED...SW winds around 5 kt, becoming S 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas around 2 ft. Areas of fog. Vsby
1 to 3 NM.
.WED NIGHT...SW 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 NM or less.
.THU...W winds around 5 kt, becoming S in the afternoon. Seas
around 2 ft. Patchy fog. Vsby 1 NM or less.
.THU NIGHT...SW winds around 5 kt. Seas 1 foot or less. A chance
of showers. Vsby 1 to 3 NM.
.FRI...SW winds around 5 kt. Seas 1 foot or less.
.FRI NIGHT...W winds 5 to 10 kt. Seas 1 foot or less.
.SAT...SW winds around 5 kt. Seas 1 foot or less. A chance of
showers.
.SAT NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. A chance of
showers.

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.

$$

ANZ254-190000-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
716 AM EDT Tue Jul 18 2017

.TODAY...S winds around 5 kt, increasing to 5 to 10 kt this
afternoon. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less.
.TONIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. Areas of fog.
Vsby 1 NM or less.
.WED...SW 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. Areas of fog. Vsby
1 to 3 NM.
.WED NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Seas 2 to 4 ft. Areas of fog. Vsby 1 NM or less.
.THU...SW winds 5 to 10 kt. Seas 2 to 4 ft. Areas of fog. Vsby
1 NM or less.
.THU NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to
3 ft.
.FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft.
.SAT...W winds around 5 kt. Seas 2 to 3 ft. A chance of showers.
.SAT NIGHT...S winds 5 to 10 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.

$$

ANZ255-190000-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
716 AM EDT Tue Jul 18 2017

.TODAY...S winds around 5 kt, increasing to 5 to 10 kt this
afternoon. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less.
.TONIGHT...SW winds 5 to 10 kt. Seas around 3 ft. Areas of fog.
Vsby 1 NM or less.
.WED...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft. Areas of fog. Vsby 1 to 3 NM.
.WED NIGHT...SW winds 5 to 10 kt with gusts up to 25 kt. Seas
2 to 4 ft. Areas of fog. Vsby 1 NM or less.
.THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. Areas of fog. Vsby
1 NM or less.
.THU NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Areas of fog.
Vsby 1 to 3 NM.
.FRI...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to
3 ft.
.FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft.
.SAT...W winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers.
.SAT NIGHT...S winds around 5 kt. Seas 2 to 4 ft. A chance of
showers.

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.

$$

ANZ256-190000-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
716 AM EDT Tue Jul 18 2017

.TODAY...SW winds around 5 kt, becoming S this afternoon. Seas
around 3 ft. Areas of fog. Vsby 1 NM or less.
.TONIGHT...SW winds 5 to 10 kt. Seas around 3 ft. Areas of fog.
Vsby 1 NM or less.
.WED...SW 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. Areas of fog. Vsby
1 to 3 NM.
.WED NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Gusts up to 20 kt. Seas 3 to 4 ft. Areas of fog.
Vsby 1 NM or less.
.THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. Areas of fog. Vsby
1 NM or less.
.THU NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Areas of fog.
Vsby 1 to 3 NM.
.FRI...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to
3 ft.
.FRI NIGHT...W winds 5 to 10 kt. Seas around 3 ft.
.SAT...W winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers.
.SAT NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. A chance of
showers.

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.

$$

ANZ232-190000-
Nantucket Sound-
716 AM EDT Tue Jul 18 2017

.TODAY...S winds around 5 kt, increasing to 5 to 10 kt with gusts
up to 20 kt this afternoon. Seas 1 to 2 ft. Areas of dense fog
this morning, then areas of fog this afternoon. Vsby 1 NM or
less.
.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Areas of fog.
Vsby 1 NM or less.
.WED...SW 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. Areas of fog. Vsby
1 to 3 NM.
.WED NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas
2 to 3 ft. Areas of fog. Vsby 1 NM or less.
.THU...SW winds 5 to 10 kt. Seas around 2 ft. Areas of fog. Vsby
1 NM or less.
.THU NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
.FRI...SW winds 5 to 10 kt with gusts up to 20 kt. Seas around
2 ft.
.FRI NIGHT...W winds 5 to 10 kt. Seas around 2 ft.
.SAT...SW winds around 5 kt. Seas 1 foot or less. A chance of
showers.
.SAT NIGHT...S winds around 5 kt. Seas 1 foot or less. A chance
of showers.

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.

$$

ANZ233-190000-
Vineyard Sound-
716 AM EDT Tue Jul 18 2017

.TODAY...SW winds around 5 kt, increasing to 5 to 10 kt with
gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Areas of fog.
Vsby 1 NM or less.
.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Areas of fog.
Vsby 1 NM or less.
.WED...SW 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. Areas of fog. Vsby
1 to 3 NM.
.WED NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas
2 to 3 ft. Areas of fog. Vsby 1 to 3 NM.
.THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. Areas of fog. Vsby
1 to 3 NM.
.THU NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI...SW winds 5 to 10 kt. Seas around 2 ft.
.FRI NIGHT...W winds 5 to 10 kt. Seas around 2 ft.
.SAT...W winds 5 to 10 kt. Seas around 2 ft. A chance of showers.
.SAT NIGHT...S winds around 5 kt. Seas around 2 ft. A chance of
showers.

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.

$$

ANZ234-190000-
Buzzards Bay-
716 AM EDT Tue Jul 18 2017

.TODAY...S winds around 5 kt, becoming SW with gusts up to 20 kt
this afternoon. Seas 2 to 3 ft. Areas of dense fog this morning
with vsby 1 NM or less.
.TONIGHT...SW winds 5 to 10 kt, diminishing to around 5 kt after
midnight. Seas around 2 ft. Areas of fog. Vsby 1 NM or less.
.WED...SW 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. Areas of fog. Vsby
1 to 3 NM.
.WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas around 2 ft. Areas
of fog. Vsby 1 to 3 NM.
.THU...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft. Areas of fog. Vsby 1 to 3 NM.
.THU NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
.FRI...SW winds 5 to 10 kt with gusts up to 20 kt. Seas around
2 ft.
.FRI NIGHT...W winds 5 to 10 kt. Seas around 2 ft.
.SAT...W winds around 5 kt. Seas 1 foot or less. A chance of
showers.
.SAT NIGHT...S winds around 5 kt. Seas 1 foot or less. A chance
of showers.

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.

$$

ANZ235-190000-
Rhode Island Sound-
716 AM EDT Tue Jul 18 2017

.TODAY...SW winds around 5 kt, becoming S with gusts up to 20 kt
this afternoon. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less.
.TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Areas of fog.
Vsby 1 NM or less.
.WED...SW 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. Areas of fog. Vsby
1 to 3 NM.
.WED NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas
2 to 4 ft. Areas of fog. Vsby 1 to 3 NM.
.THU...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft. Areas of fog. Vsby 1 to 3 NM.
.THU NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
.FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft.
.SAT...W winds 5 to 10 kt. Seas around 2 ft. A chance of showers.
.SAT NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers.

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.

$$

ANZ237-190000-
Block Island Sound-
716 AM EDT Tue Jul 18 2017

.TODAY...S winds around 5 kt, becoming SW with gusts up to 20 kt
this afternoon. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less.
.TONIGHT...SW winds 5 to 10 kt, diminishing to around 5 kt after
midnight. Seas 2 to 3 ft. Areas of fog. Vsby 1 NM or less.
.WED...SW 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. Areas of fog. Vsby
1 to 3 NM.
.WED NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Gusts up to 20 kt. Seas 2 to 4 ft. Patchy fog.
Vsby 1 NM or less.
.THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 NM
or less.
.THU NIGHT...W winds 5 to 10 kt. Seas around 2 ft.
.FRI...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft.
.FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft.
.SAT...W winds 5 to 10 kt. Seas around 2 ft. A chance of showers.
.SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers.

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.

$$

ANZ230-190000-
Boston Harbor-
716 AM EDT Tue Jul 18 2017

.TODAY...S winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts
up to 20 kt this afternoon. Seas around 2 ft. Isolated showers
this morning. Scattered showers with isolated tstms this
afternoon. Patchy fog this morning. Some tstms may produce heavy
rainfall this afternoon. Vsby 1 NM or less this morning.
.TONIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Scattered
showers.
.WED...SW winds around 5 kt, becoming SE 10 to 15 kt with gusts
up to 20 kt in the afternoon. Seas around 2 ft.
.WED NIGHT...SW winds 10 to 15 kt, diminishing to around 5 kt
after midnight. Seas around 2 ft.
.THU...W winds around 5 kt, becoming SE in the afternoon. Seas
1 foot or less. A chance of showers.
.THU NIGHT...S winds around 5 kt, becoming W around 5 kt after
midnight. Seas 1 foot or less. A chance of showers.
.FRI...W winds around 5 kt. Seas 1 foot or less.
.FRI NIGHT...W winds around 5 kt. Seas 1 foot or less.
.SAT...W winds around 5 kt. Seas 1 foot or less. A chance of
showers.
.SAT 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.

$$

ANZ236-190000-
Narragansett Bay-
716 AM EDT Tue Jul 18 2017

.TODAY...S winds around 5 kt, increasing to 10 to 15 kt with
gusts up to 20 kt this afternoon. Seas 1 to 2 ft. Areas of fog.
Isolated showers and tstms this afternoon. Some tstms may produce
heavy rainfall this afternoon. Vsby 1 NM or less.
.TONIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas
around 2 ft. Areas of fog. Vsby 1 NM or less.
.WED...SW winds around 5 kt, becoming S 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 2 to 3 ft. Areas of fog. Vsby
1 to 3 NM.
.WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
diminishing to around 5 kt after midnight. Seas 2 to 3 ft. Patchy
fog. Vsby 1 to 3 NM.
.THU...W winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM.
.THU NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas
1 foot or less.
.FRI...W winds 5 to 10 kt with gusts up to 20 kt. Seas around
2 ft.
.FRI NIGHT...W winds around 5 kt. Seas 1 foot or less.
.SAT...W winds around 5 kt. Seas 1 foot or less. A chance of
showers.
.SAT NIGHT...SW winds around 5 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.

$$

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