Coastal Waters Forecast
Issued by NWS Boston, MA

Home | 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 222316
CWFBOX

Coastal Waters Forecast
National Weather Service Taunton MA
716 PM EDT Sat Jul 22 2017

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

ANZ200-231200-
716 PM EDT Sat Jul 22 2017

.Synopsis for Massachusetts and Rhode Island coastal waters...
A frontal boundary will remain south of the waters 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.

$$

ANZ250-231200-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
716 PM EDT Sat Jul 22 2017

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

$$

ANZ251-231200-
Massachusetts Bay and Ipswich Bay-
716 PM EDT Sat Jul 22 2017

.TONIGHT...S winds 5 to 10 kt, becoming NE 10 to 15 kt with gusts
up to 25 kt after midnight. Seas around 2 ft.
.SUN...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft.
.SUN NIGHT...E winds 5 to 10 kt. Seas around 2 ft. A chance of
showers.
.MON...E winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. Gusts up to 20 kt. Seas 2 to 3 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 2 to 4 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. Gusts up to 20 kt in the
evening. Seas 2 to 3 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.
.THU...S winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft.
.THU NIGHT...SW winds 5 to 10 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.

$$

ANZ231-231200-
Cape Cod Bay-
716 PM EDT Sat Jul 22 2017

.TONIGHT...SE winds around 5 kt. Seas 1 foot or less. A slight
chance of showers this evening.
.SUN...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft.
.SUN NIGHT...E winds 5 to 10 kt. Seas 1 foot or less. A chance of
showers.
.MON...E winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. Showers likely.
.MON NIGHT...NE winds 5 to 10 kt with gusts up to 25 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. 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 1 foot or less.
.THU...S winds 5 to 10 kt. Seas 1 foot or less.
.THU NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt. Seas
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.

$$

ANZ254-231200-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
716 PM EDT Sat Jul 22 2017

.TONIGHT...SE winds around 5 kt. Seas around 2 ft. Patchy fog
after midnight. A chance of showers after midnight with vsby 1 NM
or less.
.SUN...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Patchy fog. Vsby 1 to 3 NM.
.SUN NIGHT...E winds 5 to 10 kt. Seas 2 to 4 ft. A chance of
showers.
.MON...E winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Showers likely. Vsby 1 to 3 NM.
.MON NIGHT...E winds 10 to 15 kt, becoming NE 5 to 10 kt after
midnight. Gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers.
.TUE...N winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas
3 to 5 ft. A chance of showers.
.TUE NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt after
midnight. Seas 3 to 5 ft.
.WED...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to
5 ft.
.WED NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft.
.THU...S winds 5 to 10 kt. Seas 2 to 3 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.

$$

ANZ255-231200-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
716 PM EDT Sat Jul 22 2017

.TONIGHT...SE winds around 5 kt. Seas around 2 ft. A slight
chance of showers this evening, then a chance of showers after
midnight. Patchy fog after midnight with vsby 1 NM or less.
.SUN...NE winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. Seas 2 to 4 ft. Patchy fog. Vsby 1 to 3 NM.
.SUN NIGHT...E winds 5 to 10 kt. Gusts up to 20 kt after
midnight. Seas 2 to 4 ft. Patchy fog. A chance of showers.
.MON...E winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to
5 ft. Patchy fog. A chance of showers. Vsby 1 to 3 NM.
.MON NIGHT...NE winds 5 to 10 kt. Seas 3 to 5 ft. A chance of
showers.
.TUE...N winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 4 ft. A chance of showers.
.TUE NIGHT...NE winds around 10 kt with gusts up to 20 kt. Seas
3 to 5 ft.
.WED...NE winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to
5 ft.
.WED NIGHT...SE winds 5 to 10 kt. Seas 2 to 4 ft.
.THU...S winds 5 to 10 kt. Seas 2 to 3 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.

$$

ANZ256-231200-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
716 PM EDT Sat Jul 22 2017

.TONIGHT...SE winds around 5 kt. Seas around 2 ft. A chance of
showers. Patchy fog after midnight with vsby 1 NM or less.
.SUN...NE winds 5 to 10 kt, becoming E in the afternoon. Seas
2 to 4 ft.
.SUN NIGHT...E winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 25 kt after midnight. Seas 3 to 4 ft. Patchy fog. A
chance of showers.
.MON...E winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to
5 ft. Patchy fog. A chance of showers.
.MON NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt,
becoming N 5 to 10 kt after midnight. Seas 3 to 5 ft. A chance of
showers.
.TUE...N winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 4 ft.
.TUE NIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas
3 to 5 ft.
.WED...E winds around 10 kt with gusts up to 20 kt. Seas 3 to
5 ft.
.WED NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft.
.THU...S 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.

$$

ANZ232-231200-
Nantucket Sound-
716 PM EDT Sat Jul 22 2017

.TONIGHT...SE winds around 5 kt. Seas 1 foot or less. A chance of
showers after midnight.
.SUN...NE winds 5 to 10 kt. Seas 1 foot or less.
.SUN NIGHT...E winds 5 to 10 kt. Seas around 2 ft. A chance of
showers.
.MON...E winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Showers likely.
.MON NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. A chance of showers.
.TUE...N winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
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 2 to 3 ft.
.WED NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.THU...S winds 10 to 15 kt. Seas 1 foot or less.
.THU NIGHT...SW winds 5 to 10 kt. Seas 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.

$$

ANZ233-231200-
Vineyard Sound-
716 PM EDT Sat Jul 22 2017

.TONIGHT...S winds around 5 kt, becoming E around 5 kt after
midnight. Seas 1 foot or less. A chance of showers after
midnight.
.SUN...NE winds 5 to 10 kt. Seas around 2 ft.
.SUN NIGHT...E winds around 10 kt. Gusts up to 20 kt after
midnight. Seas around 2 ft. Patchy fog. A chance of showers.
.MON...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. A chance of showers.
.MON NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. A chance of showers.
.TUE...N winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas around 2 ft. A chance of showers.
.TUE NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Gusts up to 20 kt. Seas around 2 ft.
.WED...E winds 5 to 10 kt. Seas around 2 ft.
.WED NIGHT...S winds 5 to 10 kt. Seas 1 foot or less.
.THU...S winds 10 to 15 kt. Seas 1 foot or less.
.THU NIGHT...SW winds 5 to 10 kt. Seas 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.

$$

ANZ234-231200-
Buzzards Bay-
716 PM EDT Sat Jul 22 2017

.TONIGHT...S winds 5 to 10 kt, becoming E after midnight. Seas
1 foot or less. A slight chance of showers after midnight.
.SUN...NE winds 5 to 10 kt. Seas 1 foot or less.
.SUN NIGHT...E winds 5 to 10 kt. Seas around 2 ft. A chance of
showers.
.MON...E winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. A chance of
showers.
.MON NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft. A chance of showers.
.TUE...N winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Seas around 2 ft. A chance of showers.
.TUE NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt. Seas
1 foot or less.
.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.
.THU...S winds 5 to 10 kt. Seas 1 foot or less.
.THU NIGHT...SW winds 5 to 10 kt. Seas 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.

$$

ANZ235-231200-
Rhode Island Sound-
716 PM EDT Sat Jul 22 2017

.TONIGHT...S winds around 5 kt, becoming E after midnight. Seas
around 2 ft. A chance of showers.
.SUN...NE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers.
.SUN NIGHT...E winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt after midnight. Seas 2 to 3 ft. Patchy fog. A
chance of showers.
.MON...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Patchy fog. A chance of showers.
.MON NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. A
chance of showers.
.TUE...N 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. A chance of
showers.
.TUE NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Gusts up to 20 kt. Seas 2 to 3 ft.
.WED...E winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft.
.WED NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft.
.THU...S winds 5 to 10 kt. Seas 1 foot or less.
.THU NIGHT...SW winds 5 to 10 kt. Seas 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.

$$

ANZ237-231200-
Block Island Sound-
716 PM EDT Sat Jul 22 2017

.TONIGHT...S winds around 5 kt, becoming E after midnight. Seas
around 2 ft. A chance of showers.
.SUN...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
2 to 3 ft. A chance of showers.
.SUN NIGHT...E winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt after midnight. Seas 2 to 3 ft. Patchy fog. A
chance of showers.
.MON...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Patchy fog. A chance of showers.
.MON NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. A
chance of showers.
.TUE...N 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.
.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 with gusts up to 20 kt. Seas 2 to 3 ft.
.WED NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.THU...S winds 5 to 10 kt. Seas 1 foot or less.
.THU NIGHT...SW winds 5 to 10 kt. Seas 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.

$$

ANZ230-231200-
Boston Harbor-
716 PM EDT Sat Jul 22 2017

.TONIGHT...S winds around 5 kt, becoming N with gusts up to 20 kt
after midnight. Waves 1 foot or less.
.SUN...NE winds around 10 kt. Gusts up to 20 kt in the morning.
Waves around 2 ft.
.SUN NIGHT...E winds around 5 kt. Waves 1 foot or less. A chance
of showers.
.MON...E winds 5 to 10 kt. Gusts up to 20 kt in the morning.
Waves around 2 ft. Showers likely.
.MON NIGHT...NE winds 5 to 10 kt with gusts up to 20 kt. Waves
2 to 3 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...N winds around 5 kt. Waves 1 foot or less.
.WED...E winds around 5 kt. Waves 1 foot or less.
.WED NIGHT...S winds around 5 kt. Waves 1 foot or less.
.THU...S winds 5 to 10 kt. Waves 1 foot or less.
.THU NIGHT...SW winds 5 to 10 kt with gusts up to 20 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.

$$

ANZ236-231200-
Narragansett Bay-
716 PM EDT Sat Jul 22 2017

.TONIGHT...S winds 5 to 10 kt, becoming NE after midnight. Waves
1 foot or less. A slight chance of showers after midnight.
.SUN...NE winds 5 to 10 kt. Waves 1 foot or less.
.SUN NIGHT...E winds 5 to 10 kt. Waves around 2 ft. Patchy fog. A
chance of showers.
.MON...E winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to
3 ft. A chance of showers.
.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 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Waves around 2 ft. A chance of showers.
.TUE NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Waves 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.
.THU...S winds 5 to 10 kt. Waves 1 foot or less.
.THU NIGHT...SW winds 5 to 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.

$$

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.