Coastal Waters Forecast
Issued by NWS Boston, MA

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000
FZUS51 KBOX 190212
CWFBOX

Coastal Waters Forecast
National Weather Service Boston/Norton MA
1012 PM EDT Sat May 18 2019

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

ANZ200-191515-
1012 PM EDT Sat May 18 2019

.Synopsis for Massachusetts and Rhode Island coastal waters...
High presume will shift east of the waters Sun, followed by low
pres tracking well to our N on Mon. This low pres system will drag a
cold front across the waters Mon night followed high pres  building
in from the west Tue into Wed.

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.

$$

ANZ250-191515-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1012 PM EDT Sat May 18 2019

...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH
MONDAY MORNING...

.OVERNIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft.
.SUN...S winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas 4 to 5 ft.
.SUN NIGHT...S winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 25 kt. Seas around 5 ft. A chance of
showers.
.MON...SW winds 10 to 15 kt, becoming S 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas 4 to 5 ft. A chance of
showers. Vsby 1 NM or less in the morning.
.MON NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt,
becoming W 10 to 15 kt with gusts up to 20 kt after midnight.
Seas 4 to 5 ft. A chance of showers in the evening.
.TUE...W winds 10 to 15 kt, becoming NW 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas around 4 ft.
.TUE NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas
around 4 ft.
.WED...N winds 10 to 15 kt with gusts up to 20 kt, diminishing to
5 to 10 kt in the afternoon. Seas 3 to 4 ft.
.WED NIGHT...NE winds 5 to 10 kt, becoming W after midnight. Seas
around 2 ft.
.THU...W winds 5 to 10 kt, becoming S in the afternoon. Seas
around 2 ft.
.THU NIGHT...SW 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.

$$

ANZ251-191515-
Massachusetts Bay and Ipswich Bay-
1012 PM EDT Sat May 18 2019

.OVERNIGHT...SE winds 5 to 10 kt, becoming S 10 to 15 kt. Seas
around 2 ft.
.SUN...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft.
.SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
around 4 ft. A chance of showers.
.MON...S winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to
4 ft. A chance of showers. Vsby 1 NM or less in the morning.
.MON NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 3 ft. A chance of showers in the evening.
.TUE...NW 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 20 kt, becoming NE
5 to 10 kt in the afternoon. Seas around 2 ft in the morning,
then 1 foot or less.
.WED NIGHT...SE winds around 5 kt, becoming W after midnight.
Seas 1 foot or less.
.THU...W winds around 5 kt, becoming S in the afternoon. Seas
1 foot or less.
.THU NIGHT...SW 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.

$$

ANZ231-191515-
Cape Cod Bay-
1012 PM EDT Sat May 18 2019

.OVERNIGHT...S winds 5 to 10 kt. Seas 1 foot or less.
.SUN...S winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas around 2 ft.
.SUN NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 3 ft. A chance of showers after midnight.
.MON...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas 3 to 4 ft. A chance of
showers. Vsby 1 NM or less in the morning.
.MON NIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt after
midnight. Gusts up to 25 kt. Seas around 4 ft, subsiding to 2 ft
after midnight. A chance of showers in the evening.
.TUE...NW 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
around 3 ft.
.WED...N winds 10 to 15 kt. Gusts up to 25 kt in the morning.
Seas 2 to 3 ft.
.WED NIGHT...N winds around 5 kt, becoming W after midnight. Seas
1 foot or less.
.THU...W winds around 5 kt, becoming S in the afternoon. Seas
1 foot or less.
.THU NIGHT...SW 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.

$$

ANZ254-191515-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1012 PM EDT Sat May 18 2019

.OVERNIGHT...S winds 5 to 10 kt. Seas around 3 ft.
.SUN...S winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas 3 to 4 ft.
.SUN NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas
around 5 ft. A chance of showers after midnight.
.MON...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas around 5 ft. A chance of
showers. Vsby 1 NM or less in the morning.
.MON NIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt after
midnight. Gusts up to 30 kt. Seas around 6 ft. A chance of
showers in the evening.
.TUE...W winds 10 to 15 kt with gusts up to 25 kt. Seas around
5 ft.
.TUE NIGHT...NW winds 10 to 15 kt, increasing to 15 to 20 kt
after midnight. Gusts up to 25 kt. Seas around 5 ft.
.WED...N winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to
5 ft.
.WED NIGHT...N winds 5 to 10 kt, becoming W after midnight. Seas
around 3 ft.
.THU...W winds 5 to 10 kt. Seas around 2 ft.
.THU NIGHT...SW 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.

$$

ANZ255-191515-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1012 PM EDT Sat May 18 2019

.OVERNIGHT...S winds 5 to 10 kt. Seas around 3 ft.
.SUN...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft.
.SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
4 to 5 ft. A chance of showers after midnight.
.MON...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas 5 to 6 ft. A chance of
showers. Vsby 1 to 3 NM in the morning.
.MON NIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt after
midnight. Gusts up to 30 kt. Seas around 7 ft. A chance of
showers in the evening.
.TUE...W winds 10 to 15 kt with gusts up to 25 kt. Seas around
6 ft.
.TUE NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas
around 6 ft.
.WED...N winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to
5 ft.
.WED NIGHT...E winds 5 to 10 kt, becoming W after midnight. Seas
around 2 ft.
.THU...SW winds 5 to 10 kt. Seas around 2 ft.
.THU NIGHT...SW winds around 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.

$$

ANZ256-191515-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1012 PM EDT Sat May 18 2019

.OVERNIGHT...S winds 5 to 10 kt. Seas around 3 ft.
.SUN...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 3 to 4 ft.
.SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
around 4 ft. A chance of showers after midnight.
.MON...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas 5 to 6 ft. A chance of
showers. Vsby 1 to 3 NM in the morning.
.MON NIGHT...W winds 15 to 20 kt with gusts up to 30 kt. Seas
around 7 ft. A chance of showers in the evening.
.TUE...W winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas around 6 ft.
.TUE NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas
around 5 ft.
.WED...NW winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 3 to 4 ft.
.WED NIGHT...S winds 5 to 10 kt. Seas around 2 ft in the evening,
then 1 foot or less.
.THU...SW winds 5 to 10 kt. Seas 1 foot or less.
.THU NIGHT...SW winds around 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.

$$

ANZ232-191515-
Nantucket Sound-
1012 PM EDT Sat May 18 2019

.OVERNIGHT...S winds 5 to 10 kt. Seas 1 foot or less.
.SUN...S winds 10 to 15 kt with gusts up to 25 kt. Seas around
2 ft.
.SUN NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas
around 3 ft. A chance of showers after midnight.
.MON...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas around 3 ft. A chance of
showers. Vsby 1 to 3 NM in the morning.
.MON NIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt after
midnight. Gusts up to 30 kt. Seas around 4 ft. A chance of
showers in the evening.
.TUE...W winds 10 to 15 kt with gusts up to 20 kt. Seas around
3 ft.
.TUE NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
around 3 ft.
.WED...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft.
.WED NIGHT...NE winds 5 to 10 kt, becoming W after midnight. Seas
1 foot or less.
.THU...SW winds 5 to 10 kt. Seas 1 foot or less.
.THU NIGHT...SW 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.

$$

ANZ233-191515-
Vineyard Sound-
1012 PM EDT Sat May 18 2019

.OVERNIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.SUN...S winds 10 to 15 kt with gusts up to 20 kt. Seas around
3 ft.
.SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
around 3 ft. A chance of showers after midnight.
.MON...SW winds 10 to 15 kt with gusts up to 30 kt. Seas 4 to
5 ft. A chance of showers. Vsby 1 NM or less in the morning.
.MON NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt,
becoming W 10 to 15 kt with gusts up to 20 kt after midnight.
Seas 4 to 5 ft. A chance of showers in the evening.
.TUE...W winds 10 to 15 kt with gusts up to 20 kt. Seas around
3 ft.
.TUE NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
around 3 ft.
.WED...NW winds 10 to 15 kt with gusts up to 20 kt, becoming N
5 to 10 kt in the afternoon. Seas around 2 ft.
.WED NIGHT...SE winds 5 to 10 kt, becoming SW after midnight.
Seas 1 foot or less.
.THU...SW winds 5 to 10 kt. Seas 1 foot or less.
.THU NIGHT...SW winds around 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.

$$

ANZ234-191515-
Buzzards Bay-
1012 PM EDT Sat May 18 2019

.OVERNIGHT...S winds 5 to 10 kt. Seas 1 foot or less.
.SUN...S winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft.
.SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft. A chance of showers after midnight.
.MON...SW winds 10 to 15 kt. Gusts up to 20 kt, increasing to
30 kt in the afternoon. Seas around 2 ft, building to 4 ft in the
afternoon. A chance of showers. Vsby 1 NM or less in the morning.
.MON NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt,
becoming W 10 to 15 kt with gusts up to 20 kt after midnight.
Seas 3 to 4 ft. A chance of showers in the evening.
.TUE...W winds 10 to 15 kt with gusts up to 25 kt. Seas around
2 ft.
.TUE NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas
around 2 ft.
.WED...NW winds 10 to 15 kt with gusts up to 20 kt, becoming N
5 to 10 kt in the afternoon. Seas around 2 ft in the morning,
then 1 foot or less.
.WED NIGHT...SE winds 5 to 10 kt, becoming SW after midnight.
Seas 1 foot or less.
.THU...SW winds 5 to 10 kt. Seas 1 foot or less.
.THU NIGHT...SW 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.

$$

ANZ235-191515-
Rhode Island Sound-
1012 PM EDT Sat May 18 2019

.OVERNIGHT...S winds 10 to 15 kt, diminishing to 5 to 10 kt. Seas
around 3 ft.
.SUN...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 3 to 4 ft.
.SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
around 4 ft. A chance of showers after midnight.
.MON...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas 4 to 5 ft. A chance of
showers. Vsby 1 NM or less in the morning.
.MON NIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt after
midnight. Gusts up to 30 kt. Seas around 5 ft. A chance of
showers in the evening.
.TUE...W winds 10 to 15 kt with gusts up to 20 kt. Seas around
4 ft.
.TUE NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
around 3 ft.
.WED...NW winds 10 to 15 kt with gusts up to 20 kt, becoming N
5 to 10 kt in the afternoon. Seas 2 to 3 ft.
.WED NIGHT...SE winds 5 to 10 kt, becoming SW after midnight.
Seas 1 foot or less.
.THU...SW winds 5 to 10 kt. Seas 1 foot or less.
.THU NIGHT...SW 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.

$$

ANZ237-191515-
Block Island Sound-
1012 PM EDT Sat May 18 2019

.OVERNIGHT...S winds 10 to 15 kt, becoming SW 5 to 10 kt. Seas
around 3 ft.
.SUN...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. Seas around 3 ft.
.SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
around 3 ft. A chance of showers.
.MON...SW winds 10 to 15 kt with gusts up to 20 kt, increasing to
15 to 20 kt with gusts up to 30 kt in the afternoon. Seas around
4 ft. A chance of showers. Vsby 1 to 3 NM in the morning.
.MON NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt,
becoming W 10 to 15 kt with gusts up to 20 kt after midnight.
Seas around 5 ft. A chance of showers in the evening.
.TUE...W winds 10 to 15 kt with gusts up to 20 kt. Seas around
4 ft.
.TUE NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas around 3 ft.
.WED...NW winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. Seas around 2 ft.
.WED NIGHT...S winds 5 to 10 kt. Seas 1 foot or less.
.THU...SW winds 5 to 10 kt. Seas 1 foot or less.
.THU NIGHT...SW 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.

$$

ANZ230-191515-
Boston Harbor-
1012 PM EDT Sat May 18 2019

.OVERNIGHT...SE winds 5 to 10 kt, becoming S 10 to 15 kt. Waves
1 foot or less.
.SUN...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Waves around 2 ft.
.SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves
around 2 ft. A chance of showers.
.MON...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 25 kt in the afternoon. Waves around 2 ft. A chance of
showers. Vsby 1 NM or less in the morning.
.MON NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Waves
around 2 ft. A chance of showers in the evening.
.TUE...NW winds 10 to 15 kt with gusts up to 30 kt. Waves around
2 ft.
.TUE NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Waves
around 2 ft in the evening, then 1 foot or less.
.WED...N winds 5 to 10 kt. Gusts up to 20 kt in the morning.
Waves 1 foot or less.
.WED NIGHT...SE winds around 5 kt, becoming W after midnight.
Waves 1 foot or less.
.THU...W winds around 5 kt, becoming S in the afternoon. Waves
1 foot or less.
.THU NIGHT...SW winds around 5 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.

$$

ANZ236-191515-
Narragansett Bay-
1012 PM EDT Sat May 18 2019

.OVERNIGHT...S winds 5 to 10 kt. Waves around 2 ft.
.SUN...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. Waves around 3 ft.
.SUN NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Waves around 3 ft. A chance of showers.
.MON...SW winds 10 to 15 kt with gusts up to 25 kt. Waves around
3 ft. A chance of showers. Vsby 1 NM or less in the morning.
.MON NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Waves
around 3 ft. A chance of showers in the evening.
.TUE...NW winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to
3 ft.
.TUE NIGHT...NW winds 10 to 15 kt. Gusts up to 25 kt in the
evening. Waves around 2 ft.
.WED...N winds 5 to 10 kt. Gusts up to 20 kt in the morning.
Waves around 2 ft in the morning, then 1 foot or less.
.WED NIGHT...SE winds around 5 kt, becoming SW after midnight.
Waves 1 foot or less.
.THU...SW winds 5 to 10 kt. Waves 1 foot or less.
.THU NIGHT...SW 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.

$$

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