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FZUS51 KBOX 211402
CWFBOX

Coastal Waters Forecast
National Weather Service Boston/Norton MA
1002 AM EDT Tue Aug 21 2018

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

ANZ200-220315-
1002 AM EDT Tue Aug 21 2018

.Synopsis for Massachusetts and Rhode Island coastal waters...
A ridge of high pressure from the maritimes to New England will
provide northeast winds across the waters this afternoon. A warm
front approaches tonight from the southwest and is accompanied by
areas of fog and heavy showers late. The front lifts north Wed
followed by it's attending cold front Wed afternoon which will be
accompanied by another round of tstms. High pressure over the Ohio
Valley Thu builds east into New England late week and the
weekend, providing dry pleasant boating this period.

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.

$$

ANZ250-220315-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1002 AM EDT Tue Aug 21 2018

.THIS AFTERNOON...E winds 5 to 10 kt. Seas around 4 ft.
.TONIGHT...SE 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 NM or less.
.WED...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Patchy fog. A chance of showers and tstms. Some tstms may
produce heavy rainfall. Vsby 1 NM or less.
.WED NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 ft.
.THU...NW winds 10 to 15 kt, becoming W 5 to 10 kt in the
afternoon. 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 2 to 3 ft.
.SAT...S winds 5 to 10 kt. Seas around 2 ft.
.SAT NIGHT...S winds 10 to 15 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.

$$

ANZ251-220315-
Massachusetts Bay and Ipswich Bay-
1002 AM EDT Tue Aug 21 2018

.THIS AFTERNOON...E winds 5 to 10 kt. Seas 2 to 4 ft.
.TONIGHT...SE 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 NM or less.
.WED...SE winds 10 to 15 kt, becoming SW 5 to 10 kt in the
afternoon. 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.
.WED NIGHT...NW winds 5 to 10 kt. Seas 2 to 4 ft.
.THU...NW winds 5 to 10 kt. Seas around 2 ft.
.THU NIGHT...W winds 5 to 10 kt. Seas 1 foot or less.
.FRI...SW winds 5 to 10 kt. Seas around 2 ft.
.FRI NIGHT...SW winds 5 to 10 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 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.

$$

ANZ231-220315-
Cape Cod Bay-
1002 AM EDT Tue Aug 21 2018

.THIS AFTERNOON...NE winds 5 to 10 kt. Seas around 2 ft. A slight
chance of showers.
.TONIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. Patchy fog.
Showers likely with a chance of tstms. Some tstms may produce
heavy rainfall. Vsby 1 NM or less.
.WED...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft. Patchy fog. Showers likely with a chance of
tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less.
.WED NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft.
.THU...NW winds 5 to 10 kt. Seas 2 to 3 ft.
.THU NIGHT...W winds 5 to 10 kt. Seas 1 foot or less.
.FRI...W winds 5 to 10 kt. Seas 1 foot or less.
.FRI NIGHT...SW winds 5 to 10 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.

$$

ANZ254-220315-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1002 AM EDT Tue Aug 21 2018

.THIS AFTERNOON...NE winds 5 to 10 kt. Seas 3 to 5 ft. A chance
of showers. A slight chance of showers. Patchy fog. Vsby 1 to
3 NM.
.TONIGHT...SE winds 5 to 10 kt. Seas 3 to 5 ft. Patchy fog. A
chance of showers and tstms. Some tstms may produce heavy
rainfall. Vsby 1 NM or less.
.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. Patchy fog. Showers
likely with a chance of tstms. Some tstms may produce heavy
rainfall. Vsby 1 NM or less.
.WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
becoming NW after midnight. Seas 4 to 7 ft. Patchy fog.
.THU...N winds 10 to 15 kt, becoming NW 5 to 10 kt in the
afternoon. Seas 3 to 5 ft.
.THU NIGHT...W winds 5 to 10 kt. Seas 2 to 4 ft.
.FRI...NW winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI NIGHT...SW winds 5 to 10 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 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.

$$

ANZ255-220315-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1002 AM EDT Tue Aug 21 2018

.THIS AFTERNOON...NE winds 5 to 10 kt. Seas 3 to 5 ft. A slight
chance of showers. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM
or less.
.TONIGHT...E winds 5 to 10 kt, becoming SE 10 to 15 kt after
midnight. Seas 2 to 4 ft. Patchy fog. A chance of showers and
tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less.
.WED...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
7 ft. Patchy fog. Showers likely with a chance of tstms. Some
tstms may produce heavy rainfall. Vsby 1 NM or less.
.WED NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt,
becoming NW 10 to 15 kt after midnight. Seas 5 to 8 ft. Patchy
fog.
.THU...N winds 10 to 15 kt, becoming NW 5 to 10 kt in the
afternoon. Seas 4 to 6 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...SW winds 5 to 10 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 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.

$$

ANZ256-220315-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1002 AM EDT Tue Aug 21 2018

.THIS AFTERNOON...NE winds 5 to 10 kt. Seas 2 to 4 ft.
.TONIGHT...SE winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt after midnight. Seas 2 to 4 ft. Patchy fog.
Showers likely with a chance of tstms. Some tstms may produce
heavy rainfall. Vsby 1 to 3 NM.
.WED...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
7 ft. Patchy fog. A chance of showers and tstms. Some tstms may
produce heavy rainfall. Vsby 1 NM or less.
.WED NIGHT...W winds 15 to 20 kt, becoming NW 10 to 15 kt after
midnight. Gusts up to 25 kt. Seas 5 to 8 ft.
.THU...NW winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 4 to 6 ft.
.THU NIGHT...NW winds 10 to 15 kt. Seas 3 to 4 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.
.SAT...S winds 5 to 10 kt. Seas around 2 ft.
.SAT 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.

$$

ANZ232-220315-
Nantucket Sound-
1002 AM EDT Tue Aug 21 2018

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

$$

ANZ233-220315-
Vineyard Sound-
1002 AM EDT Tue Aug 21 2018

.THIS AFTERNOON...NE winds 5 to 10 kt. Seas 1 foot or less. A
slight chance of showers.
.TONIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. Patchy fog.
Showers likely with a chance of tstms. Some tstms may produce
heavy rainfall. Vsby 1 to 3 NM.
.WED...SW winds 10 to 15 kt with gusts up to 20 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.
.WED NIGHT...W winds 10 to 15 kt, becoming NW after midnight.
Gusts up to 20 kt. Seas 2 to 4 ft.
.THU...NW winds 10 to 15 kt. Seas 2 to 3 ft.
.THU NIGHT...NW winds 5 to 10 kt. Seas around 2 ft.
.FRI...W winds 5 to 10 kt. Seas around 2 ft.
.FRI NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
.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.

$$

ANZ234-220315-
Buzzards Bay-
1002 AM EDT Tue Aug 21 2018

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

$$

ANZ235-220315-
Rhode Island Sound-
1002 AM EDT Tue Aug 21 2018

.THIS AFTERNOON...NE winds 5 to 10 kt. Seas 2 to 3 ft.
.TONIGHT...SE winds 5 to 10 kt, increasing to 10 to 15 kt after
midnight. Seas 2 to 4 ft. Patchy fog. A chance of showers and
tstms. Some tstms may produce heavy rainfall. Vsby 1 NM or less.
.WED...S winds 10 to 15 kt, becoming SW 15 to 20 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.
.WED NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
4 to 7 ft.
.THU...NW winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 3 to 5 ft.
.THU NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI...W winds 5 to 10 kt. Seas around 2 ft.
.FRI NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
.SAT...SW winds 5 to 10 kt. Seas around 2 ft.
.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.

$$

ANZ237-220315-
Block Island Sound-
1002 AM EDT Tue Aug 21 2018

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

$$

ANZ230-220315-
Boston Harbor-
1002 AM EDT Tue Aug 21 2018

.THIS AFTERNOON...NE winds 5 to 10 kt. Waves 2 to 3 ft.
.TONIGHT...SE winds 5 to 10 kt. Waves 2 to 3 ft. Patchy fog. A
chance of showers and tstms. Some tstms may produce heavy
rainfall. Vsby 1 NM or less.
.WED...S 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 NM or less.
.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 1 foot or less.
.THU NIGHT...W winds around 5 kt. Waves 1 foot or less.
.FRI...W winds around 5 kt. Waves 1 foot or less.
.FRI NIGHT...SW winds around 5 kt. Waves 1 foot or less.
.SAT...S winds around 5 kt. Waves 1 foot or less.
.SAT NIGHT...S winds 5 to 10 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.

$$

ANZ236-220315-
Narragansett Bay-
1002 AM EDT Tue Aug 21 2018

.THIS AFTERNOON...NE winds 5 to 10 kt. Waves around 2 ft.
.TONIGHT...SE 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 NM or less.
.WED...S winds 5 to 10 kt, becoming SW 10 to 15 kt in the
afternoon. Gusts up to 20 kt. Waves 2 to 4 ft. Patchy fog. A
chance of showers and tstms. Some tstms may produce heavy
rainfall. Vsby 1 NM or less.
.WED NIGHT...NW winds 5 to 10 kt. Waves 2 to 4 ft. A chance of
showers.
.THU...NW winds 5 to 10 kt. Waves 2 to 3 ft.
.THU NIGHT...NW winds 5 to 10 kt. Waves around 2 ft.
.FRI...W winds around 5 kt. Waves around 2 ft.
.FRI NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less.
.SAT...SW winds 5 to 10 kt. Waves 1 foot or less.
.SAT NIGHT...S winds 5 to 10 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.

$$

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