Coastal Waters Forecast
Issued by NWS Boston, MA

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FZUS51 KBOX 230517
CWFBOX

Coastal Waters Forecast
National Weather Service Boston/Norton MA
117 AM EDT Tue Jul 23 2019

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

ANZ200-231800-
117 AM EDT Tue Jul 23 2019

.Synopsis for Massachusetts and Rhode Island coastal waters...
A stationary front will remain near or just south of the southern
waters overnight. Areas of low pres will move along this boundary
tonight and Tue, bringing showers and scattered thunderstorms,  some
with gusty winds and tropical downpours. Dry and more  seasonable
conditions return Wed through Fri as high pres builds  across the
waters.

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.

$$

ANZ250-231800-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
117 AM EDT Tue Jul 23 2019

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

.REST OF TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt.
Seas 3 to 5 ft. Patchy fog. A chance of showers with a slight
chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 to
3 NM.
.TUE...NE winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 3 to 5 ft. Patchy fog. Showers likely. Vsby 1 NM
or less.
.TUE NIGHT...N winds 10 to 15 kt, becoming NW around 5 kt after
midnight. Seas 2 to 3 ft.
.WED...N winds around 5 kt, becoming NE around 5 kt in the
afternoon. Seas 2 to 3 ft.
.WED NIGHT...S winds around 5 kt, becoming NW after midnight.
Seas 2 to 3 ft.
.THU...N winds 5 to 10 kt, becoming E in the afternoon. Seas 2 to
3 ft.
.THU NIGHT...S winds around 5 kt, becoming SW after midnight.
Seas 2 to 3 ft.
.FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft.
.SAT...S winds 5 to 10 kt. Seas 2 to 4 ft.
.SAT NIGHT...S 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.

$$

ANZ251-231800-
Massachusetts Bay and Ipswich Bay-
117 AM EDT Tue Jul 23 2019

.REST OF TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt.
Seas 3 to 5 ft. Patchy fog. Showers likely. Vsby 1 to 3 NM.
.TUE...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 3 to 5 ft. Patchy fog. Showers likely. Vsby 1 NM or less.
.TUE NIGHT...N winds 5 to 10 kt, becoming W after midnight. Seas
2 to 3 ft.
.WED...N winds around 5 kt, becoming E around 5 kt in the
afternoon. Seas around 2 ft.
.WED NIGHT...S winds around 5 kt, becoming NW after midnight.
Seas 1 foot or less.
.THU...N winds 5 to 10 kt, becoming E in the afternoon. Seas
around 2 ft.
.THU NIGHT...S winds around 5 kt, becoming SW after midnight.
Seas around 2 ft.
.FRI...S winds around 5 kt. Seas around 2 ft.
.FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.SAT...S winds 5 to 10 kt. Seas 2 to 3 ft.
.SAT NIGHT...S winds 5 to 10 kt. Seas 2 to 4 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.

$$

ANZ231-231800-
Cape Cod Bay-
117 AM EDT Tue Jul 23 2019

.REST OF TONIGHT...N winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Patchy fog. A chance of showers with a slight
chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 to
3 NM.
.TUE...NE winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 4 ft. Patchy fog. Showers with tstms likely. Some tstms
may produce heavy rainfall. Vsby 1 NM or less.
.TUE NIGHT...N winds 5 to 10 kt, diminishing to around 5 kt after
midnight. Seas 2 to 3 ft.
.WED...NE winds around 5 kt. Seas 1 foot or less.
.WED NIGHT...S winds around 5 kt, becoming W around 5 kt after
midnight. Seas 1 foot or less.
.THU...N winds around 5 kt, becoming E in the afternoon. Seas
1 foot or less.
.THU NIGHT...S winds around 5 kt, becoming SW after midnight.
Seas 1 foot or less.
.FRI...S winds around 5 kt. Seas 1 foot or less.
.FRI NIGHT...S winds around 5 kt. Seas 1 foot or less.
.SAT...S winds 5 to 10 kt. Seas 1 foot or less.
.SAT NIGHT...S 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.

$$

ANZ254-231800-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
117 AM EDT Tue Jul 23 2019

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

.REST OF TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 5 ft. Patchy fog. A chance of showers with a slight
chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 NM
or less.
.TUE...N winds 10 to 15 kt, becoming NE 15 to 20 kt with gusts up
to 25 kt in the afternoon. 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.
.TUE NIGHT...N winds 10 to 15 kt with gusts up to 20 kt,
diminishing to around 5 kt after midnight. Seas 3 to 5 ft. A
chance of showers. Vsby 1 to 3 NM.
.WED...NE winds 5 to 10 kt. Seas 2 to 4 ft.
.WED NIGHT...E winds around 5 kt, becoming NW after midnight.
Seas 2 to 4 ft.
.THU...N winds around 5 kt. Seas 2 to 4 ft.
.THU NIGHT...S winds around 5 kt, becoming SW after midnight.
Seas 2 to 3 ft.
.FRI...S winds around 5 kt. Seas 2 to 3 ft.
.FRI NIGHT...S winds around 5 kt. Seas 2 to 3 ft.
.SAT...SE winds 5 to 10 kt. Seas 2 to 3 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.

$$

ANZ255-231800-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
117 AM EDT Tue Jul 23 2019

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING...

.REST OF TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 4 to 5 ft. Patchy fog. A chance of showers with a slight
chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 NM
or less.
.TUE...N winds around 10 kt, becoming W 15 to 20 kt with gusts up
to 25 kt in the afternoon. Seas 4 to 6 ft. Patchy fog. Showers
likely with a chance of tstms. Some tstms may produce heavy
rainfall. Vsby 1 NM or less.
.TUE NIGHT...N winds 10 to 15 kt with gusts up to 20 kt, becoming
NE 5 to 10 kt after midnight. Seas 4 to 6 ft. Showers likely.
.WED...NE winds 5 to 10 kt. Seas 3 to 5 ft. A chance of showers.
.WED NIGHT...E winds around 5 kt, becoming NW after midnight.
Seas 3 to 5 ft.
.THU...N winds around 5 kt, becoming E in the afternoon. Seas
2 to 4 ft.
.THU NIGHT...S winds around 5 kt. Seas around 3 ft.
.FRI...SE winds around 5 kt. Seas 2 to 3 ft.
.FRI NIGHT...SE winds around 5 kt. Seas around 2 ft.
.SAT...SE winds around 5 kt. Seas 2 to 3 ft.
.SAT NIGHT...SE 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.

$$

ANZ256-231800-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
117 AM EDT Tue Jul 23 2019

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING...

.REST OF TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 5 ft. Patchy fog. A chance of showers with a slight
chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 to
3 NM.
.TUE...NE winds 10 to 15 kt, becoming NW 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas 4 to 6 ft. Patchy fog. Showers
with tstms likely. Some tstms may produce heavy rainfall. Vsby
1 NM or less.
.TUE NIGHT...N winds 10 to 15 kt, becoming NE 5 to 10 kt after
midnight. Seas 4 to 6 ft. A chance of showers.
.WED...NE winds 5 to 10 kt. Seas 3 to 5 ft.
.WED NIGHT...S winds around 5 kt, becoming NW after midnight.
Seas 3 to 4 ft.
.THU...N winds around 5 kt, becoming SE in the afternoon. Seas
3 to 4 ft.
.THU NIGHT...S winds around 5 kt. Seas around 3 ft.
.FRI...S winds around 5 kt. Seas 2 to 3 ft.
.FRI NIGHT...S winds around 5 kt. Seas 2 to 3 ft.
.SAT...SE winds 5 to 10 kt. Seas 2 to 3 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.

$$

ANZ232-231800-
Nantucket Sound-
117 AM EDT Tue Jul 23 2019

.REST OF TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Patchy fog. A chance of showers with a slight
chance of tstms. Some tstms may produce heavy rainfall. Vsby 1 NM
or less.
.TUE...N winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 25 kt in the afternoon. Seas 2 to 4 ft. Patchy fog. Showers
with tstms likely. Some tstms may produce heavy rainfall. Vsby
1 NM or less.
.TUE NIGHT...N winds 5 to 10 kt, becoming NE after midnight. Seas
2 to 3 ft. A chance of showers. Vsby 1 to 3 NM.
.WED...NE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers.
.WED NIGHT...SE winds around 5 kt, becoming NW after midnight.
Seas 2 to 3 ft.
.THU...N winds around 5 kt, becoming E in the afternoon. Seas
around 2 ft.
.THU NIGHT...SW winds around 5 kt. Seas around 2 ft.
.FRI...SW winds around 5 kt. Seas 1 foot or less.
.FRI NIGHT...S winds around 5 kt. Seas 1 foot or less.
.SAT...SE winds 5 to 10 kt. Seas 1 foot or less.
.SAT 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.

$$

ANZ233-231800-
Vineyard Sound-
117 AM EDT Tue Jul 23 2019

.REST OF TONIGHT...W winds around 10 kt. Seas 2 to 3 ft. Patchy
fog. A chance of showers with a slight chance of tstms. Some
tstms may produce heavy rainfall. Vsby 1 to 3 NM.
.TUE...N winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft. Patchy fog. Showers with tstms likely. Some tstms
may produce heavy rainfall. Vsby 1 NM or less.
.TUE NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers.
.WED...NE winds around 5 kt. Seas 2 to 3 ft.
.WED NIGHT...S winds around 5 kt, becoming W after midnight. Seas
2 to 3 ft.
.THU...N winds around 5 kt, becoming SE in the afternoon. Seas
2 to 3 ft.
.THU NIGHT...SW winds around 5 kt. Seas 2 to 3 ft.
.FRI...SW winds around 5 kt. Seas around 2 ft.
.FRI NIGHT...S winds around 5 kt. Seas around 2 ft.
.SAT...S winds 5 to 10 kt. Seas around 2 ft.
.SAT 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.

$$

ANZ234-231800-
Buzzards Bay-
117 AM EDT Tue Jul 23 2019

.REST OF TONIGHT...NW winds around 10 kt. Seas around 2 ft.
Patchy fog. A chance of showers with a slight chance of tstms.
Some tstms may produce heavy rainfall. Vsby 1 to 3 NM.
.TUE...N winds around 10 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft. Patchy fog. Showers with tstms likely. Some tstms
may produce heavy rainfall. Vsby 1 to 3 NM.
.TUE NIGHT...N winds 5 to 10 kt, becoming NE after midnight. Seas
around 2 ft. A chance of showers.
.WED...NE winds around 5 kt, becoming E around 5 kt in the
afternoon. Seas 2 to 3 ft.
.WED NIGHT...S winds around 5 kt, becoming W around 5 kt after
midnight. Seas 2 to 3 ft.
.THU...N winds around 5 kt, becoming SE in the afternoon. Seas
around 2 ft.
.THU NIGHT...SW winds around 5 kt. Seas around 2 ft.
.FRI...SW winds 5 to 10 kt. Seas 1 foot or less.
.FRI NIGHT...S winds around 5 kt. Seas 1 foot or less.
.SAT...S winds 5 to 10 kt. Seas 1 foot or less.
.SAT NIGHT...S 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.

$$

ANZ235-231800-
Rhode Island Sound-
117 AM EDT Tue Jul 23 2019

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT THIS MORNING
THROUGH LATE TONIGHT...

.REST OF TONIGHT...NW winds 10 to 15 kt. Seas 2 to 4 ft. Patchy
fog. A chance of showers with a slight chance of tstms. Some
tstms may produce heavy rainfall. Vsby 1 NM or less.
.TUE...N winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 3 to 5 ft. Patchy fog. Showers with tstms likely. Some tstms
may produce heavy rainfall. Vsby 1 NM or less.
.TUE NIGHT...NE winds 5 to 10 kt. Seas 3 to 5 ft. A chance of
showers.
.WED...NE winds 5 to 10 kt, becoming E in the afternoon. Seas
2 to 4 ft.
.WED NIGHT...S winds around 5 kt, becoming NW after midnight.
Seas around 3 ft.
.THU...N winds around 5 kt, becoming SE in the afternoon. Seas
2 to 3 ft.
.THU NIGHT...SW winds around 5 kt. Seas 2 to 3 ft.
.FRI...SW winds 5 to 10 kt. Seas around 2 ft.
.FRI NIGHT...S winds around 5 kt. Seas around 2 ft.
.SAT...S winds 5 to 10 kt. Seas around 2 ft.
.SAT 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.

$$

ANZ237-231800-
Block Island Sound-
117 AM EDT Tue Jul 23 2019

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT THIS MORNING
THROUGH LATE TONIGHT...

.REST OF TONIGHT...NW winds 5 to 10 kt. Seas 2 to 4 ft. Patchy
fog. A chance of showers and tstms. Some tstms may produce heavy
rainfall. Vsby 1 to 3 NM.
.TUE...N winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Patchy fog. Showers with tstms likely. Some tstms may
produce heavy rainfall. Vsby 1 NM or less.
.TUE NIGHT...NE winds 5 to 10 kt, diminishing to around 5 kt
after midnight. Seas 2 to 4 ft. A chance of showers.
.WED...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
2 to 4 ft.
.WED NIGHT...S winds around 5 kt, becoming NW around 5 kt after
midnight. Seas 2 to 4 ft.
.THU...N winds around 5 kt, becoming SE in the afternoon. Seas
2 to 3 ft.
.THU NIGHT...SW winds around 5 kt. Seas 2 to 3 ft.
.FRI...S winds 5 to 10 kt. Seas around 2 ft.
.FRI NIGHT...S winds around 5 kt. Seas around 2 ft.
.SAT...S 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.

$$

ANZ230-231800-
Boston Harbor-
117 AM EDT Tue Jul 23 2019

.REST OF TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt.
Waves 2 to 3 ft. Patchy fog. Showers.
.TUE...NE winds around 10 kt. Waves 2 to 3 ft. Patchy fog.
Showers. Vsby 1 NM or less.
.TUE NIGHT...N winds 5 to 10 kt, becoming W after midnight. Waves
1 foot or less.
.WED...N winds around 5 kt, becoming E in the afternoon. Waves
1 foot or less.
.WED NIGHT...S winds around 5 kt, becoming NW after midnight.
Waves 1 foot or less.
.THU...N winds around 5 kt, becoming E in the afternoon. Waves
1 foot or less.
.THU NIGHT...S winds around 5 kt, becoming SW after midnight.
Waves 1 foot or less.
.FRI...S winds around 5 kt. Waves 1 foot or less.
.FRI NIGHT...S winds around 5 kt. Waves 1 foot or less.
.SAT...S winds 5 to 10 kt. Waves 1 foot or less.
.SAT NIGHT...S winds 5 to 10 kt. Waves 1 foot or less.

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.

$$

ANZ236-231800-
Narragansett Bay-
117 AM EDT Tue Jul 23 2019

.REST OF TONIGHT...N winds 5 to 10 kt. Waves 2 to 3 ft. Patchy
fog. Showers likely with a chance of tstms. Some tstms may
produce heavy rainfall. Vsby 1 to 3 NM.
.TUE...N winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Waves 2 to 3 ft. Patchy fog. Showers with tstms likely. Some
tstms may produce heavy rainfall. Vsby 1 to 3 NM.
.TUE NIGHT...N winds 5 to 10 kt, diminishing to around 5 kt after
midnight. Waves 2 to 3 ft.
.WED...N winds around 5 kt, becoming E in the afternoon. Waves
2 to 3 ft.
.WED NIGHT...S winds around 5 kt, becoming NW around 5 kt after
midnight. Waves 2 to 3 ft.
.THU...N winds around 5 kt, becoming SE in the afternoon. Waves
around 2 ft.
.THU NIGHT...SW winds around 5 kt. Waves 2 to 3 ft.
.FRI...SW winds around 5 kt. Waves around 2 ft.
.FRI NIGHT...S winds around 5 kt. Waves around 2 ft.
.SAT...S winds 5 to 10 kt. Waves around 2 ft.
.SAT NIGHT...S winds around 5 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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