Coastal Waters Forecast
Issued by NWS Boston, MA

Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FZUS51 KBOX 220815
CWFBOX

Coastal Waters Forecast
National Weather Service Taunton MA
415 AM EDT Sat Jul 22 2017

COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT TO
25 NM

ANZ200-222115-
415 AM EDT Sat Jul 22 2017

.Synopsis for Massachusetts and Rhode Island coastal waters...
Weak low pressure will remain along the Massachusetts coast today.
Late tonight and Sunday, the coastal waters will be in between
high pressure building from Canada to northern New England and low
pressure emerging off the Mid-Atlantic coast. The low will pass
southeast of the waters Sunday night. Additional waves of low
pressure will pass over the southern waters Monday...moving east
of the region Tuesday. Strong high pressure will be centered over
the waters Wednesday.

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.

$$

ANZ250-222115-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
415 AM EDT Sat Jul 22 2017

.TODAY...NW winds 5 to 10 kt, becoming S 10 to 15 kt this
afternoon. Seas 2 to 3 ft.
.TONIGHT...S winds 10 to 15 kt, becoming N 15 to 20 kt after
midnight. Seas 2 to 4 ft.
.SUN...NE winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 2 to 3 ft.
.SUN NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt with
gusts up to 20 kt after midnight. Seas 2 to 4 ft. A chance of
showers.
.MON...E winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to
5 ft. Showers likely.
.MON NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Gusts up to 25 kt. Seas 4 to 6 ft. A chance of
showers.
.TUE...N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft.
A chance of showers.
.TUE NIGHT...N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to
4 ft.
.WED...NE winds 5 to 10 kt. Seas 2 to 3 ft.
.WED NIGHT...S 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.

$$

ANZ251-222115-
Massachusetts Bay and Ipswich Bay-
415 AM EDT Sat Jul 22 2017

.TODAY...W winds 5 to 10 kt, becoming SE 10 to 15 kt this
afternoon. Seas 2 to 3 ft.
.TONIGHT...S winds 10 to 15 kt, becoming N 15 to 20 kt after
midnight. Seas 2 to 3 ft.
.SUN...NE winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 2 to 3 ft.
.SUN NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt with
gusts up to 20 kt after midnight. Seas 2 to 3 ft. A chance of
showers.
.MON...E winds 5 to 10 kt with gusts up to 25 kt. Seas 3 to 5 ft.
Showers likely.
.MON NIGHT...NE winds 5 to 10 kt with gusts up to 25 kt. Seas
3 to 5 ft. A chance of showers.
.TUE...N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft.
A chance of showers.
.TUE NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft.
.WED...NE winds 5 to 10 kt. Seas 2 to 3 ft.
.WED NIGHT...S 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.

$$

ANZ231-222115-
Cape Cod Bay-
415 AM EDT Sat Jul 22 2017

.TODAY...NW winds 5 to 10 kt, becoming SE 10 to 15 kt this
afternoon. Seas 1 foot or less.
.TONIGHT...SW winds 10 to 15 kt. Seas 1 foot or less.
.SUN...NE winds 10 to 15 kt. Seas around 2 ft.
.SUN NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt with
gusts up to 20 kt after midnight. Seas around 2 ft. A chance of
showers.
.MON...E winds 5 to 10 kt with gusts up to 25 kt. Seas 2 to 3 ft.
Showers likely.
.MON NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers.
.TUE...N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft.
A chance of showers.
.TUE NIGHT...N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to
3 ft.
.WED...NE winds 5 to 10 kt. Seas 1 foot or less.
.WED NIGHT...S 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.

$$

ANZ254-222115-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
415 AM EDT Sat Jul 22 2017

.TODAY...NW winds 5 to 10 kt, becoming S this afternoon. Seas
2 to 3 ft.
.TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Vsby
1 to 3 NM.
.SUN...NE winds 10 to 15 kt. Seas 2 to 4 ft.
.SUN NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt with
gusts up to 20 kt after midnight. Seas 2 to 4 ft. A chance of
showers. Vsby 1 to 3 NM.
.MON...E winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Showers likely.
.MON NIGHT...N winds 5 to 10 kt. Seas 3 to 5 ft. A chance of
showers.
.TUE...N winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 ft.
A chance of showers.
.TUE NIGHT...N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to
4 ft.
.WED...NE winds 5 to 10 kt. Seas 2 to 3 ft.
.WED NIGHT...S 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.

$$

ANZ255-222115-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
415 AM EDT Sat Jul 22 2017

.TODAY...NW winds 5 to 10 kt, becoming SW this afternoon. Seas
2 to 3 ft. A slight chance of showers this morning.
.TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Vsby
1 to 3 NM.
.SUN...NE winds 10 to 15 kt. Seas 2 to 4 ft. Patchy fog. A chance
of showers. Vsby 1 to 3 NM.
.SUN NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt with
gusts up to 25 kt after midnight. Seas 2 to 4 ft. A chance of
showers.
.MON...E winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft.
Showers likely.
.MON NIGHT...N winds 5 to 10 kt. Seas 3 to 5 ft. A chance of
showers.
.TUE...N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft.
A chance of showers.
.TUE NIGHT...N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to
4 ft.
.WED...NE winds 5 to 10 kt. Seas 2 to 3 ft.
.WED NIGHT...S 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.

$$

ANZ256-222115-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
415 AM EDT Sat Jul 22 2017

.TODAY...NW winds 5 to 10 kt, becoming SW this afternoon. Seas
around 3 ft. A slight chance of showers this morning.
.TONIGHT...S winds 5 to 10 kt. Seas around 3 ft. A chance of
showers.
.SUN...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 2 to 4 ft. A chance of showers. Vsby 1 to 3 NM.
.SUN NIGHT...E winds 10 to 15 kt with gusts up to 25 kt. Seas
3 to 4 ft. A chance of showers.
.MON...E winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 4 ft.
Showers likely.
.MON NIGHT...N winds 5 to 10 kt. Seas 3 to 5 ft. A chance of
showers.
.TUE...N winds around 10 kt with gusts up to 20 kt. Seas 2 to
4 ft. A chance of showers.
.TUE NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt. Seas
2 to 4 ft.
.WED...E winds 5 to 10 kt. Seas 2 to 3 ft.
.WED NIGHT...S 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.

$$

ANZ232-222115-
Nantucket Sound-
415 AM EDT Sat Jul 22 2017

.TODAY...NW winds 5 to 10 kt, becoming S this afternoon. Seas
1 foot or less.
.TONIGHT...S winds 5 to 10 kt. Seas 1 foot or less.
.SUN...NE winds 10 to 15 kt. Seas around 2 ft. A chance of
showers.
.SUN NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt with
gusts up to 20 kt after midnight. Seas 2 to 3 ft. A chance of
showers.
.MON...E winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Showers likely.
.MON NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers.
.TUE...N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft.
A chance of showers.
.TUE NIGHT...N winds 5 to 10 kt with gusts up to 20 kt. Seas
around 2 ft.
.WED...NE winds 5 to 10 kt. Seas 1 foot or less.
.WED NIGHT...S 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.

$$

ANZ233-222115-
Vineyard Sound-
415 AM EDT Sat Jul 22 2017

.TODAY...NW winds 5 to 10 kt, becoming SW 10 to 15 kt this
afternoon. Seas around 2 ft.
.TONIGHT...S winds around 10 kt, becoming W after midnight. Seas
around 2 ft. Patchy fog. Vsby 1 to 3 NM.
.SUN...NE winds 10 to 15 kt. Seas around 2 ft. A chance of
showers. Vsby 1 to 3 NM.
.SUN NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 3 ft. A chance of showers.
.MON...E winds around 10 kt with gusts up to 20 kt. Seas 2 to
3 ft. Showers likely.
.MON NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers.
.TUE...N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft.
A chance of showers.
.TUE NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt. Seas
around 2 ft.
.WED...E winds 5 to 10 kt. Seas 1 foot or less.
.WED NIGHT...S 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.

$$

ANZ234-222115-
Buzzards Bay-
415 AM EDT Sat Jul 22 2017

.TODAY...W winds 5 to 10 kt, becoming S 10 to 15 kt this
afternoon. Seas 1 foot or less.
.TONIGHT...S winds 5 to 10 kt, becoming NW after midnight. Seas
1 foot or less. A chance of showers. Vsby 1 to 3 NM.
.SUN...NE winds 10 to 15 kt. Seas around 2 ft. A chance of
showers.
.SUN NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt with
gusts up to 20 kt after midnight. Seas around 2 ft. A chance of
showers.
.MON...E winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Showers likely.
.MON NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers.
.TUE...N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft.
A chance of showers.
.TUE NIGHT...N winds 5 to 10 kt with gusts up to 20 kt. Seas
around 2 ft.
.WED...E winds 5 to 10 kt. Seas 1 foot or less.
.WED NIGHT...S 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.

$$

ANZ235-222115-
Rhode Island Sound-
415 AM EDT Sat Jul 22 2017

.TODAY...W winds 5 to 10 kt, becoming SW 10 to 15 kt this
afternoon. Seas 2 to 3 ft.
.TONIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Patchy fog. A
chance of showers.
.SUN...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM.
.SUN NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 4 ft. A chance of showers.
.MON...E winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Showers likely.
.MON NIGHT...N winds 5 to 10 kt. Seas 2 to 4 ft. A chance of
showers.
.TUE...N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft.
A chance of showers.
.TUE NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt. Seas
2 to 3 ft.
.WED...E winds 5 to 10 kt. Seas around 2 ft.
.WED NIGHT...S 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.

$$

ANZ237-222115-
Block Island Sound-
415 AM EDT Sat Jul 22 2017

.TODAY...NW winds 5 to 10 kt, becoming SW 10 to 15 kt this
afternoon. Seas 2 to 3 ft.
.TONIGHT...SW winds 5 to 10 kt, becoming E after midnight. Seas
2 to 3 ft. A chance of showers.
.SUN...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 2 to 4 ft. A chance of showers. Vsby 1 to 3 NM.
.SUN NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers.
.MON...E winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas
2 to 3 ft. Showers likely.
.MON NIGHT...N winds 5 to 10 kt. Seas 2 to 4 ft. A chance of
showers.
.TUE...N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft.
A chance of showers.
.TUE NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt. Seas
2 to 3 ft.
.WED...E winds 5 to 10 kt. Seas around 2 ft.
.WED NIGHT...S 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.

$$

ANZ230-222115-
Boston Harbor-
415 AM EDT Sat Jul 22 2017

.TODAY...W winds 5 to 10 kt, becoming SE this afternoon. Waves
1 foot or less.
.TONIGHT...S winds 5 to 10 kt, becoming N 10 to 15 kt with gusts
up to 20 kt after midnight. Waves 1 foot or less.
.SUN...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Waves around 2 ft.
.SUN NIGHT...E winds 5 to 10 kt. Gusts up to 20 kt after
midnight. Waves around 2 ft. A chance of showers.
.MON...E winds 5 to 10 kt with gusts up to 25 kt. Seas 2 to 3 ft.
Showers likely.
.MON NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Waves around 2 ft. A chance of showers.
.TUE...N winds around 5 kt. Waves around 2 ft. A chance of
showers.
.TUE NIGHT...N winds around 5 kt. Waves 1 foot or less.
.WED...S winds around 5 kt. Waves 1 foot or less.
.WED NIGHT...S 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.

$$

ANZ236-222115-
Narragansett Bay-
415 AM EDT Sat Jul 22 2017

.TODAY...W winds 5 to 10 kt, becoming S 10 to 15 kt this
afternoon. Waves around 2 ft.
.TONIGHT...S winds 5 to 10 kt, becoming NE after midnight. Waves
around 2 ft.
.SUN...NE winds 10 to 15 kt. Waves around 2 ft. A chance of
showers.
.SUN NIGHT...E winds 5 to 10 kt. Gusts up to 20 kt after
midnight. Waves 2 to 3 ft. A chance of showers.
.MON...NE winds 5 to 10 kt with gusts up to 20 kt. Waves around 2
ft. Showers likely.
.MON NIGHT...N winds 5 to 10 kt. Waves around 2 ft. A chance of
showers.
.TUE...N winds 5 to 10 kt with gusts up to 20 kt. Waves around 2
ft. A chance of showers.
.TUE NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt. Seas
around 2 ft.
.WED...E winds around 5 kt. Waves 1 foot or less.
.WED NIGHT...S 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.

$$

For the latest updates...please visit our webpage at
www.weather.gov/boston

You can follow us on Facebook at
www.facebook.com/NWSBoston

You can follow us on Twitter at
@NWSBoston



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.