Coastal Waters Forecast
Issued by NWS Boston, MA

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348
FZUS51 KBOX 221340
CWFBOX

Coastal Waters Forecast
National Weather Service Boston/Norton MA
940 AM EDT Tue May 22 2018

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

ANZ200-230215-
940 AM EDT Tue May 22 2018

.Synopsis for Massachusetts and Rhode Island coastal waters...
Low pressure will track across northern New England this evening.
A cold front will move southward across the waters Wed evening.
High pres builds over the waters Thu, the SE of the waters Fri. A
cold front may pass southward across the waters late in the day on
Sat.


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.

$$

ANZ250-230215-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
940 AM EDT Tue May 22 2018

.THIS AFTERNOON...SE winds around 5 kt, increasing to 5 to 10 kt.
Seas around 2 ft. A chance of showers.
.TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog.
Showers likely. Vsby 1 to 3 NM.
.WED...W winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby
1 to 3 NM.
.WED NIGHT...SW winds 5 to 10 kt, becoming NE with gusts up to
20 kt after midnight. Seas 2 to 3 ft. A chance of showers. Vsby
1 to 3 NM.
.THU...NE winds 5 to 10 kt, becoming SE with gusts up to 20 kt in
the afternoon. Seas 2 to 3 ft.
.THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft.
.FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft.
.FRI NIGHT...SW winds 15 to 20 kt. Seas 3 to 5 ft.
.SAT...SW winds 10 to 15 kt. Seas 2 to 4 ft. A chance of showers.
.SAT NIGHT...E winds 5 to 10 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.

$$

ANZ251-230215-
Massachusetts Bay and Ipswich Bay-
940 AM EDT Tue May 22 2018

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

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.

$$

ANZ231-230215-
Cape Cod Bay-
940 AM EDT Tue May 22 2018

.THIS AFTERNOON...S winds around 5 kt, increasing to 10 to 15 kt.
Seas around 2 ft. A chance of showers.
.TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Patchy fog.
Showers. Vsby 1 to 3 NM.
.WED...NW winds around 5 kt. Seas 1 foot or less. Patchy fog.
Vsby 1 to 3 NM.
.WED NIGHT...SW winds 5 to 10 kt, becoming NE after midnight.
Seas 1 foot or less.
.THU...NE winds 5 to 10 kt, becoming E in the afternoon. Seas
1 foot or less.
.THU NIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt after
midnight. Seas around 2 ft.
.FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft.
.FRI NIGHT...SW winds 15 to 20 kt. Seas 2 to 3 ft.
.SAT...SW winds 10 to 15 kt. Seas around 2 ft.
.SAT NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. A chance of
showers. Vsby 1 to 3 NM.

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.

$$

ANZ254-230215-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
940 AM EDT Tue May 22 2018

.THIS AFTERNOON...S winds 5 to 10 kt. Seas 2 to 3 ft. A slight
chance of showers.
.TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog.
Showers. Vsby 1 NM or less.
.WED...W winds around 5 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 to
3 NM.
.WED NIGHT...SW winds around 5 kt, becoming N after midnight.
Seas 2 to 4 ft.
.THU...E winds 5 to 10 kt. Seas 2 to 4 ft.
.THU NIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt with
gusts up to 20 kt after midnight. Seas 2 to 3 ft.
.FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 6 ft.
.SAT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft.
.SAT NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. A chance of
showers. Vsby 1 to 3 NM.

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.

$$

ANZ255-230215-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
940 AM EDT Tue May 22 2018

.THIS AFTERNOON...S winds 5 to 10 kt. Seas 2 to 3 ft. A slight
chance of showers.
.TONIGHT...SE winds 5 to 10 kt, becoming SW after midnight. Seas
2 to 3 ft. Patchy fog. Showers. Vsby 1 NM or less.
.WED...W winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 to
3 NM.
.WED NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas 2 to 4 ft.
.THU...E winds 5 to 10 kt. Seas 2 to 4 ft.
.THU NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 7 ft.
.SAT...SW winds around 15 kt with gusts up to 20 kt. Seas 4 to
6 ft.
.SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 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.

$$

ANZ256-230215-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
940 AM EDT Tue May 22 2018

.THIS AFTERNOON...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers.
.TONIGHT...SE winds 5 to 10 kt, becoming SW after midnight. Seas
2 to 3 ft. Patchy fog. Showers likely. Vsby 1 NM or less.
.WED...W winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 NM
or less.
.WED NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas 2 to 4 ft.
.THU...NE winds 5 to 10 kt, becoming E in the afternoon. Seas
2 to 4 ft.
.THU NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
5 to 7 ft.
.SAT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to
6 ft.
.SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 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.

$$

ANZ232-230215-
Nantucket Sound-
940 AM EDT Tue May 22 2018

.THIS AFTERNOON...S winds 5 to 10 kt. Seas around 2 ft. A chance
of showers.
.TONIGHT...S winds 5 to 10 kt. Seas 1 to 2 ft. Patchy fog.
Showers. Vsby 1 NM or less.
.WED...W winds 5 to 10 kt. Seas 1 foot or less. Patchy fog. Vsby
1 to 3 NM.
.WED NIGHT...SW winds 5 to 10 kt, becoming N after midnight. Seas
around 2 ft.
.THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft.
.THU NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
.FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft.
.FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 4 ft.
.SAT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft.
.SAT NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers. Vsby 1 to 3 NM.

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.

$$

ANZ233-230215-
Vineyard Sound-
940 AM EDT Tue May 22 2018

.THIS AFTERNOON...SW winds 5 to 10 kt. Seas 1 to 2 ft. A chance
of showers.
.TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Patchy fog.
Showers. Vsby 1 NM or less.
.WED...W winds 5 to 10 kt. Seas 1 foot or less. Patchy fog. Vsby
1 NM or less.
.WED NIGHT...SW winds 5 to 10 kt, becoming N after midnight. Seas
around 2 ft.
.THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft.
.THU NIGHT...SW winds around 10 kt. Seas around 2 ft.
.FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft.
.FRI NIGHT...SW winds 15 to 20 kt. Seas 2 to 4 ft.
.SAT...SW winds 10 to 15 kt. Seas 2 to 3 ft.
.SAT NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers. Vsby 1 to 3 NM.

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.

$$

ANZ234-230215-
Buzzards Bay-
940 AM EDT Tue May 22 2018

.THIS AFTERNOON...SW winds 5 to 10 kt. Seas around 2 ft. A chance
of showers.
.TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Patchy fog.
Showers. Vsby 1 to 3 NM.
.WED...W winds 5 to 10 kt. Seas 1 foot or less. Patchy fog. Vsby
1 NM or less.
.WED NIGHT...SW winds 5 to 10 kt, becoming N after midnight. Seas
around 2 ft.
.THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft.
.THU NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
.FRI...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft.
.FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft.
.SAT...SW winds around 10 kt. Seas 2 to 3 ft.
.SAT NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. A chance of
showers. Vsby 1 to 3 NM.

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.

$$

ANZ235-230215-
Rhode Island Sound-
940 AM EDT Tue May 22 2018

.THIS AFTERNOON...SW winds around 5 kt, becoming S. Seas 2 to
3 ft. A chance of showers.
.TONIGHT...SE winds 5 to 10 kt, becoming SW after midnight. Seas
around 2 ft. Patchy fog. Showers likely. Vsby 1 NM or less.
.WED...SW winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby
1 NM or less.
.WED NIGHT...SW winds 5 to 10 kt, becoming N after midnight. Seas
2 to 3 ft.
.THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
2 to 3 ft.
.THU NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.FRI NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 ft.
.SAT...SW winds 10 to 15 kt. Seas 2 to 4 ft.
.SAT NIGHT...NW winds 10 to 15 kt. Seas 2 to 4 ft. A chance of
showers. Vsby 1 to 3 NM.

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.

$$

ANZ237-230215-
Block Island Sound-
940 AM EDT Tue May 22 2018

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

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.

$$

ANZ230-230215-
Boston Harbor-
940 AM EDT Tue May 22 2018

.THIS AFTERNOON...NE winds around 5 kt, becoming SE. Waves 1 foot
or less. Showers likely.
.TONIGHT...S winds 5 to 10 kt. Waves 1 foot or less. Patchy fog.
Showers likely.
.WED...NW winds around 5 kt, becoming E in the afternoon. Waves
1 foot or less. Patchy fog.
.WED NIGHT...W winds around 5 kt, becoming NE after midnight.
Waves 1 foot or less. A chance of showers.
.THU...E winds 5 to 10 kt. Waves 1 foot or less.
.THU NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less.
.FRI...W winds 5 to 10 kt with gusts up to 20 kt. Waves around
2 ft.
.FRI NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less.
.SAT...SW winds around 5 kt. Waves 1 foot or less. A chance of
showers.
.SAT NIGHT...E winds around 5 kt. Waves 1 foot or less. A chance
of showers. Vsby 1 to 3 NM.

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.

$$

ANZ236-230215-
Narragansett Bay-
940 AM EDT Tue May 22 2018

.THIS AFTERNOON...S winds 5 to 10 kt. Waves around 2 ft. Showers
likely.
.TONIGHT...SE winds 5 to 10 kt, becoming SW after midnight. Waves
around 2 ft. Patchy fog. Showers. Vsby 1 NM or less.
.WED...W winds around 5 kt, increasing to 5 to 10 kt in the
afternoon. Waves around 2 ft. Patchy fog. Vsby 1 NM or less.
.WED NIGHT...SW winds around 5 kt, becoming N after midnight.
Waves around 2 ft.
.THU...NE winds around 5 kt, becoming SE in the afternoon. Waves
around 2 ft.
.THU NIGHT...SW winds 5 to 10 kt. Waves around 2 ft.
.FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to
3 ft.
.FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves
2 to 3 ft.
.SAT...SW winds 5 to 10 kt. Waves 2 to 3 ft.
.SAT NIGHT...NW winds 5 to 10 kt. Waves around 2 ft. A chance of
showers. Vsby 1 to 3 NM.

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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