Coastal Waters Forecast
Issued by NWS Boston, MA

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763
FZUS51 KBOX 190517
CWFBOX

Coastal Waters Forecast
National Weather Service Boston/Norton MA
116 AM EDT Mon Aug 19 2019

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

ANZ200-191800-
116 AM EDT Mon Aug 19 2019

.Synopsis for Massachusetts and Rhode Island coastal waters...
A series of weakening fronts will help maintain light winds and flat
seas today through Tue. A cold front should cross the waters Thu
night followed by high pres from the Great Lakes Fri into next
weekend.

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.

$$

ANZ250-191800-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
116 AM EDT Mon Aug 19 2019

.REST OF TONIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Patchy
fog. A chance of showers with isolated tstms. Vsby 1 NM or less.
.MON...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 4 ft. Patchy fog. Vsby 1 NM or less.
.MON NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 4 ft.
.TUE...NW winds 5 to 10 kt, becoming NE in the afternoon. Seas
2 to 3 ft. A chance of showers. Vsby 1 to 3 NM.
.TUE NIGHT THROUGH WED NIGHT...SW winds 10 to 15 kt. Seas 2 to
4 ft. A chance of showers.
.THU...SW winds 10 to 15 kt. Seas 2 to 4 ft. A chance of showers.
.THU NIGHT...W winds around 10 kt. Seas 2 to 4 ft. A chance of
showers.
.FRI...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.

$$

ANZ251-191800-
Massachusetts Bay and Ipswich Bay-
116 AM EDT Mon Aug 19 2019

.REST OF TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Patchy
fog. A slight chance of showers with isolated tstms. Vsby 1 NM or
less.
.MON...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft. Patchy fog. Vsby 1 NM or less.
.MON NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 NM.
.TUE...NW winds 5 to 10 kt, becoming E in the afternoon. Seas
1 foot or less. A chance of showers.
.TUE NIGHT AND WED...S winds 5 to 10 kt. Seas 2 to 3 ft. Patchy
fog. A chance of showers. Vsby 1 to 3 NM.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers.
.THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers.
.THU NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers.
.FRI...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.

$$

ANZ231-191800-
Cape Cod Bay-
116 AM EDT Mon Aug 19 2019

.REST OF TONIGHT...S winds 5 to 10 kt. Seas 1 foot or less.
Patchy fog. Vsby 1 NM or less.
.MON...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas around 2 ft. Patchy fog. Vsby 1 NM or less.
.MON NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft.
.TUE...NW winds 5 to 10 kt, becoming NE in the afternoon. Seas
1 foot or less. A chance of showers. Vsby 1 to 3 NM.
.TUE NIGHT...S winds around 5 kt. Seas 1 foot or less. Patchy
fog. A chance of showers. Vsby 1 to 3 NM.
.WED AND WED NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. A
chance of showers.
.THU...W winds 5 to 10 kt. Seas around 2 ft. A chance of showers.
.FRI...NW winds 5 to 10 kt. Seas around 2 ft. A chance of
showers.
.FRI NIGHT...W winds 5 to 10 kt. Seas 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.

$$

ANZ254-191800-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
116 AM EDT Mon Aug 19 2019

.REST OF TONIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Patchy
dense fog. Vsby 1 NM or less.
.MON...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. Patchy dense fog.
Vsby 1 NM or less.
.MON NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Seas 2 to 4 ft. Patchy fog. Vsby 1 to 3 NM.
.TUE...W winds 5 to 10 kt, becoming N in the afternoon. Seas 2 to
4 ft. Patchy fog. Vsby 1 to 3 NM.
.TUE NIGHT...S winds around 5 kt. Seas 2 to 4 ft. Patchy fog. A
chance of showers. Vsby 1 to 3 NM.
.WED...S winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers.
.WED NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. A chance of
showers.
.THU...W winds 10 to 15 kt. Seas 3 to 5 ft. A chance of showers.
.FRI...NW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers.
.FRI NIGHT...W 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.

$$

ANZ255-191800-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
116 AM EDT Mon Aug 19 2019

.REST OF TONIGHT...S winds around 10 kt. Seas 2 to 3 ft. Patchy
dense fog. Vsby 1 NM or less.
.MON...SW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy dense fog.
Vsby 1 NM or less.
.MON NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog.
Vsby 1 NM or less.
.TUE...W winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog. Vsby 1 to
3 NM.
.TUE NIGHT AND WED...S winds 5 to 10 kt. Seas 2 to 4 ft. A chance
of showers.
.WED NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. A chance of
showers.
.THU...W winds 10 to 15 kt. Seas 4 to 6 ft. A chance of showers.
.FRI...NW winds 5 to 10 kt. Seas 3 to 5 ft. A chance of showers.
.FRI NIGHT...W winds 5 to 10 kt. Seas 3 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.

$$

ANZ256-191800-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
116 AM EDT Mon Aug 19 2019

.REST OF TONIGHT...S winds around 10 kt. Seas around 3 ft. Patchy
fog. Vsby 1 NM or less.
.MON...SW winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog. Vsby 1 NM
or less.
.MON NIGHT...SW winds 5 to 10 kt. Seas 3 to 4 ft. Patchy fog.
Vsby 1 NM or less.
.TUE...W winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to
3 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM.
.TUE NIGHT AND WED...S winds 5 to 10 kt. Seas 2 to 4 ft. A chance
of showers.
.WED NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. A chance of
showers.
.THU...W winds 10 to 15 kt. Seas 4 to 5 ft. A chance of showers.
.FRI...NW winds 5 to 10 kt. Seas around 4 ft. A chance of
showers.
.FRI NIGHT...NW winds around 10 kt. Seas 3 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.

$$

ANZ232-191800-
Nantucket Sound-
116 AM EDT Mon Aug 19 2019

.REST OF TONIGHT...S winds 10 to 15 kt. Seas around 2 ft. Patchy
dense fog. Vsby 1 NM or less.
.MON...SW winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby
1 NM or less.
.MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Patchy fog.
Vsby 1 to 3 NM.
.TUE...W winds 5 to 10 kt, becoming E in the afternoon. Seas
around 2 ft. A chance of showers. Vsby 1 to 3 NM.
.TUE NIGHT...S winds around 5 kt. Seas around 2 ft. Patchy fog. A
chance of showers. Vsby 1 to 3 NM.
.WED AND WED NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A
chance of showers.
.THU...SW winds 10 to 15 kt, becoming W 5 to 10 kt. Seas 2 to
3 ft. A chance of showers.
.FRI...NW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers.
.FRI NIGHT...W winds 5 to 10 kt. Seas around 2 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.

$$

ANZ233-191800-
Vineyard Sound-
116 AM EDT Mon Aug 19 2019

.REST OF TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Patchy
fog. Vsby 1 to 3 NM.
.MON...SW winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby
1 NM or less.
.MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Patchy fog.
Vsby 1 to 3 NM.
.TUE...NW winds around 5 kt, becoming S in the afternoon. Seas
around 2 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM.
.TUE NIGHT...S winds around 5 kt. Seas around 2 ft. Patchy fog. A
chance of showers. Vsby 1 to 3 NM.
.WED AND WED NIGHT...SW winds 10 to 15 kt. Seas 2 to 4 ft. A
chance of showers.
.THU...W winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers.
.FRI...NW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers.
.FRI NIGHT...NW 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.

$$

ANZ234-191800-
Buzzards Bay-
116 AM EDT Mon Aug 19 2019

.REST OF TONIGHT...S winds around 10 kt. Seas around 2 ft. Patchy
fog. Vsby 1 NM or less.
.MON...SW winds around 10 kt. Seas 1 foot or less. Patchy fog.
Vsby 1 to 3 NM.
.MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Patchy fog.
Vsby 1 NM or less.
.TUE...NW winds around 5 kt, becoming SE around 5 kt in the
afternoon. Seas 1 foot or less. Patchy fog. A chance of showers.
.TUE NIGHT AND WED...S winds 5 to 10 kt. Seas 2 to 3 ft. Patchy
fog. A chance of showers. Vsby 1 to 3 NM.
.WED NIGHT...SW winds around 10 kt. Seas 2 to 3 ft. A chance of
showers.
.THU...W winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers.
.FRI...NW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers.
.FRI NIGHT...NW 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.

$$

ANZ235-191800-
Rhode Island Sound-
116 AM EDT Mon Aug 19 2019

.REST OF TONIGHT...SW winds around 10 kt. Seas 2 to 3 ft. Patchy
fog. Vsby 1 NM or less.
.MON...SW winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby
1 NM or less.
.MON NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog.
Vsby 1 to 3 NM.
.TUE...W winds around 5 kt, becoming S around 5 kt in the
afternoon. Seas around 2 ft. Patchy fog. A chance of showers.
Vsby 1 to 3 NM.
.TUE NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. A
chance of showers. Vsby 1 to 3 NM.
.WED...S winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers.
.WED NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. A chance of
showers.
.THU...SW winds around 10 kt. Seas 3 to 5 ft. A chance of
showers.
.THU NIGHT...W winds 5 to 10 kt. Seas 3 to 5 ft. A chance of
showers.
.FRI...NW winds 5 to 10 kt. Seas 3 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.

$$

ANZ237-191800-
Block Island Sound-
116 AM EDT Mon Aug 19 2019

.REST OF TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy
fog. A slight chance of showers with isolated tstms. Vsby 1 NM or
less.
.MON...SW winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby
1 to 3 NM.
.MON NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog.
Vsby 1 to 3 NM.
.TUE...NW winds around 5 kt, becoming S in the afternoon. Seas
around 2 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM.
.TUE NIGHT...SW winds around 5 kt. Seas 2 to 3 ft. Patchy fog. A
chance of showers. Vsby 1 to 3 NM.
.WED...S winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers.
.WED NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. A chance of
showers.
.THU...SW winds around 10 kt. Seas 3 to 5 ft. A chance of
showers.
.THU NIGHT...W winds 5 to 10 kt. Seas 2 to 4 ft. A chance of
showers.
.FRI...NW 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.

$$

ANZ230-191800-
Boston Harbor-
116 AM EDT Mon Aug 19 2019

.REST OF TONIGHT...S winds 5 to 10 kt. Waves 1 foot or less.
Patchy fog. A chance of showers with isolated tstms.
.MON...SW winds 5 to 10 kt. Waves 1 foot or less. Patchy fog.
Vsby 1 to 3 NM.
.MON NIGHT...W winds 5 to 10 kt. Waves 1 foot or less. A chance
of showers.
.TUE...NW winds around 5 kt, becoming E in the afternoon. Waves
1 foot or less. A chance of showers.
.TUE NIGHT AND WED...S winds 5 to 10 kt. Waves 1 foot or less.
Patchy fog. A chance of showers. Vsby 1 to 3 NM.
.WED NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. A chance
of showers.
.THU...SW winds 5 to 10 kt. Waves 1 foot or less. A chance of
showers.
.THU NIGHT...W winds around 5 kt. Waves 1 foot or less. A chance
of showers.
.FRI...NW 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.

$$

ANZ236-191800-
Narragansett Bay-
116 AM EDT Mon Aug 19 2019

.REST OF TONIGHT...S winds 5 to 10 kt. Waves around 2 ft. Patchy
fog. A slight chance of showers with isolated tstms. Vsby 1 NM or
less.
.MON...S winds 5 to 10 kt. Waves around 2 ft. Patchy fog. Vsby
1 to 3 NM.
.MON NIGHT...SW winds 5 to 10 kt. Waves around 2 ft.
.TUE...NW winds around 5 kt, becoming S in the afternoon. Waves
around 2 ft. A chance of showers.
.TUE NIGHT AND WED...S winds 5 to 10 kt. Waves 2 to 3 ft. Patchy
fog. A chance of showers. Vsby 1 to 3 NM.
.WED NIGHT...SW winds 5 to 10 kt. Waves 2 to 3 ft. A chance of
showers.
.THU...SW winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers.
.THU NIGHT...W winds 5 to 10 kt. Waves 2 to 3 ft. A chance of
showers.
.FRI...NW 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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