Coastal Waters Forecast
Issued by NWS Boston, MA

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000
FZUS51 KBOX 210517
CWFBOX

Coastal Waters Forecast
National Weather Service Boston/Norton MA
117 AM EDT Tue May 21 2019

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

ANZ200-211800-
117 AM EDT Tue May 21 2019

.Synopsis for Massachusetts and Rhode Island coastal waters...
As low pres moves E of southern Quebec, it will drag a cold front
across the waters overnight. Low pres will continue to intensify
Tue as it moves E across the Canadian Maritimes, resulting in a
period of strong NW wind gusts. High pres then builds in from the W
Tue night and Wed before moving E of the waters Wed night and  Thu.
Low pres then may track across the waters late Thu into early Fri,
with brief high pres following later on Fri before shifting  E of
the waters 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.

$$

ANZ250-211800-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
117 AM EDT Tue May 21 2019

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
WEDNESDAY MORNING...

.REST OF TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft.
.TUE...W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.TUE NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas
4 to 7 ft.
.WED...N winds 15 to 20 kt with gusts up to 25 kt, diminishing to
10 to 15 kt in the afternoon. Seas 4 to 6 ft.
.WED NIGHT...SE winds around 5 kt, becoming SW after midnight.
Seas around 2 ft.
.THU...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 2 to 3 ft.
.THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 ft. A chance of showers.
.FRI...E winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to
6 ft. A chance of showers.
.FRI NIGHT...E winds 5 to 10 kt. Seas 3 to 5 ft.
.SAT...SE winds 10 to 15 kt. Seas 2 to 4 ft. A chance of showers.
.SAT NIGHT...S 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.

$$

ANZ251-211800-
Massachusetts Bay and Ipswich Bay-
117 AM EDT Tue May 21 2019

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
WEDNESDAY MORNING...

.REST OF TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft.
.TUE...W winds 10 to 15 kt, becoming NW 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas 2 to 4 ft.
.TUE NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 30 kt. Seas 2 to 4 ft.
.WED...NW winds 10 to 15 kt with gusts up to 25 kt, becoming NE
5 to 10 kt in the afternoon. Seas 2 to 4 ft.
.WED NIGHT...SE winds around 5 kt, becoming SW after midnight.
Seas around 2 ft.
.THU...S winds 5 to 10 kt. Seas around 2 ft.
.THU NIGHT...S winds 5 to 10 kt, becoming SE 10 to 15 kt with
gusts up to 20 kt after midnight. Seas 2 to 4 ft. A chance of
showers.
.FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. A chance of showers.
.FRI NIGHT...E winds 5 to 10 kt. Seas 2 to 4 ft.
.SAT...S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers.
.SAT NIGHT...SW winds 10 to 15 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.

$$

ANZ231-211800-
Cape Cod Bay-
117 AM EDT Tue May 21 2019

.REST OF TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft.
.TUE...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft.
.TUE NIGHT...NW winds 10 to 15 kt with gusts up to 30 kt. Seas
2 to 4 ft.
.WED...N winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 4 ft.
.WED NIGHT...SE winds around 5 kt, becoming SW after midnight.
Seas 2 to 3 ft.
.THU...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas around 2 ft.
.THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. A chance of showers.
.FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. A chance of showers.
.FRI NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft.
.SAT...SE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers.
.SAT NIGHT...S winds 10 to 15 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.

$$

ANZ254-211800-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
117 AM EDT Tue May 21 2019

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
WEDNESDAY MORNING...

.REST OF TONIGHT...W winds 10 to 15 kt with gusts up to 25 kt.
Seas 3 to 5 ft. Patchy fog. A slight chance of showers. Vsby 1 NM
or less.
.TUE...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.TUE NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas
4 to 7 ft.
.WED...N winds 15 to 20 kt with gusts up to 30 kt, diminishing to
10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 4 to
7 ft.
.WED NIGHT...N winds around 5 kt, becoming W after midnight. Seas
2 to 4 ft.
.THU...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the
afternoon. Seas 2 to 3 ft.
.THU NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas
3 to 5 ft. A chance of showers.
.FRI...E winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to
8 ft. A chance of showers.
.FRI NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas
4 to 7 ft.
.SAT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...S 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.

$$

ANZ255-211800-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
117 AM EDT Tue May 21 2019

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

.REST OF TONIGHT...W winds 10 to 15 kt with gusts up to 25 kt.
Seas 4 to 5 ft. Patchy fog. Vsby 1 NM or less.
.TUE...W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft.
.TUE NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 25 kt. Seas 4 to 6 ft.
.WED...N winds 10 to 15 kt, becoming NW 5 to 10 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 4 ft.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.THU...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 2 to 3 ft.
.THU NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas
3 to 5 ft. A chance of showers.
.FRI...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to
8 ft. A chance of showers.
.FRI NIGHT...E winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 7 ft.
.SAT...SE winds around 10 kt. Seas 3 to 5 ft.
.SAT NIGHT...S winds 10 to 15 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.

$$

ANZ256-211800-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
117 AM EDT Tue May 21 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.
.TUE...W winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas 3 to 5 ft.
.TUE NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas
3 to 5 ft.
.WED...NW winds 10 to 15 kt with gusts up to 25 kt, becoming W
5 to 10 kt in the afternoon. Seas 3 to 5 ft.
.WED NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.THU...S 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.
.THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
4 to 6 ft. A chance of showers.
.FRI...N winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to
7 ft.
.FRI NIGHT...E winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 7 ft.
.SAT...SE winds 10 to 15 kt. Seas 3 to 5 ft.
.SAT NIGHT...S winds 10 to 15 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.

$$

ANZ232-211800-
Nantucket Sound-
117 AM EDT Tue May 21 2019

.REST OF TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft.
.TUE...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft.
.TUE NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 4 ft.
.WED...N winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 4 ft.
.WED NIGHT...S winds around 5 kt. Seas 1 foot or less.
.THU...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas around 2 ft.
.THU NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 4 ft. A chance of showers.
.FRI...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to
4 ft. A chance of showers.
.FRI NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft.
.SAT...SE winds 5 to 10 kt. Seas 2 to 3 ft.
.SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 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.

$$

ANZ233-211800-
Vineyard Sound-
117 AM EDT Tue May 21 2019

.REST OF TONIGHT...W winds around 10 kt with gusts up to 20 kt.
Seas 2 to 3 ft.
.TUE...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft.
.TUE NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 3 ft.
.WED...N winds 10 to 15 kt with gusts up to 25 kt, becoming NW
5 to 10 kt in the afternoon. Seas around 2 ft.
.WED NIGHT...S winds around 5 kt. Seas 1 foot or less.
.THU...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas around 2 ft.
.THU NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. A chance of showers.
.FRI...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to
4 ft. A chance of showers.
.FRI NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft.
.SAT...SE winds 5 to 10 kt. Seas around 2 ft.
.SAT NIGHT...S winds 10 to 15 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.

$$

ANZ234-211800-
Buzzards Bay-
117 AM EDT Tue May 21 2019

.REST OF TONIGHT...W winds 5 to 10 kt with gusts up to 20 kt.
Seas 2 to 3 ft.
.TUE...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft.
.TUE NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 3 ft.
.WED...N winds 10 to 15 kt with gusts up to 25 kt, becoming NW
5 to 10 kt in the afternoon. Seas around 2 ft.
.WED NIGHT...S winds around 5 kt. Seas 1 foot or less.
.THU...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas around 2 ft.
.THU NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. A chance of showers.
.FRI...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. A chance of showers.
.FRI NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft.
.SAT...SE winds 5 to 10 kt. Seas around 2 ft.
.SAT NIGHT...S winds 10 to 15 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.

$$

ANZ235-211800-
Rhode Island Sound-
117 AM EDT Tue May 21 2019

.REST OF TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 4 ft.
.TUE...W winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas 3 to 4 ft.
.TUE NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 4 ft.
.WED...N winds 10 to 15 kt with gusts up to 25 kt, becoming W
5 to 10 kt in the afternoon. Seas 2 to 4 ft.
.WED NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.THU...SW winds 5 to 10 kt, becoming S 10 to 15 kt 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 4 ft. A chance of showers.
.FRI...N winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
5 ft. A chance of showers.
.FRI NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 ft.
.SAT...SE winds 5 to 10 kt. Seas 2 to 3 ft.
.SAT NIGHT...S winds 10 to 15 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.

$$

ANZ237-211800-
Block Island Sound-
117 AM EDT Tue May 21 2019

.REST OF TONIGHT...NW winds around 10 kt with gusts up to 20 kt.
Seas 2 to 4 ft.
.TUE...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft.
.TUE NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 4 ft.
.WED...NW winds 10 to 15 kt with gusts up to 25 kt, becoming W
5 to 10 kt in the afternoon. Seas 2 to 3 ft.
.WED NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.THU...S 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.
.THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 4 ft. A chance of showers.
.FRI...N winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.FRI NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 ft.
.SAT...SE winds 5 to 10 kt. Seas 2 to 3 ft.
.SAT NIGHT...S winds 10 to 15 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.

$$

ANZ230-211800-
Boston Harbor-
117 AM EDT Tue May 21 2019

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
LATE TONIGHT...

.REST OF TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft.
.TUE...W winds 15 to 20 kt with gusts up to 30 kt. Waves around
2 ft.
.TUE NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 30 kt. Waves around 2 ft.
.WED...NW winds 10 to 15 kt with gusts up to 25 kt, becoming N
5 to 10 kt in the afternoon. Waves around 2 ft.
.WED NIGHT...SE winds around 5 kt, becoming SW after midnight.
Waves 1 foot or less.
.THU...S winds 5 to 10 kt. Waves 1 foot or less.
.THU NIGHT...S winds 5 to 10 kt. Waves around 2 ft. A chance of
showers.
.FRI...NE winds around 10 kt with gusts up to 20 kt. Waves 2 to
3 ft. A chance of showers.
.FRI NIGHT...E winds 5 to 10 kt. Waves 1 foot or less, except
2 to 4 ft at the outer harbor entrance.
.SAT...S winds 5 to 10 kt. Waves 1 foot or less. A chance of
showers.
.SAT NIGHT...SW winds around 10 kt. Waves 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.

$$

ANZ236-211800-
Narragansett Bay-
117 AM EDT Tue May 21 2019

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
THIS EVENING...

.REST OF TONIGHT...NW winds 5 to 10 kt with gusts up to 20 kt.
Waves 2 to 3 ft.
.TUE...NW winds 10 to 15 kt with gusts up to 30 kt. Waves 2 to
3 ft.
.TUE NIGHT...NW winds 10 to 15 kt with gusts up to 30 kt. Waves
2 to 3 ft.
.WED...NW winds 5 to 10 kt. Gusts up to 25 kt in the morning.
Waves around 2 ft.
.WED NIGHT...S winds 5 to 10 kt. Waves 1 foot or less.
.THU...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the
afternoon. Waves around 2 ft.
.THU NIGHT...SW winds 10 to 15 kt. Waves 2 to 3 ft. A chance of
showers.
.FRI...N winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to
3 ft. A chance of showers.
.FRI NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Waves
2 to 3 ft.
.SAT...SE winds 5 to 10 kt. Waves around 2 ft.
.SAT NIGHT...SW winds around 10 kt. Waves 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.

$$

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