Coastal Waters Forecast
Issued by NWS Boston, MA

Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary Off
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 231524
CWFBOX

Coastal Waters Forecast
National Weather Service Taunton MA
1024 AM EST Fri Feb 23 2018

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

ANZ200-240430-
1024 AM EST Fri Feb 23 2018

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pressure moves east of Nova Scotia this afternoon with a
series of frontal systems sweeping across the waters through the
weekend. High pres builds over the waters early next week.

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.

$$

ANZ250-240430-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1024 AM EST Fri Feb 23 2018

.THIS AFTERNOON...SE winds 10 to 15 kt. Gusts up to 20 kt. Seas
2 to 3 ft. A chance of rain.
.TONIGHT...S winds 10 to 15 kt, becoming W after midnight. Gusts
up to 25 kt. Seas 2 to 4 ft. Patchy fog. Rain likely. Vsby 1 to
3 NM.
.SAT...W winds 10 to 15 kt, becoming NW 5 to 10 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 4 ft.
.SAT NIGHT...N winds 10 to 15 kt, becoming NE 15 to 20 kt after
midnight. Gusts up to 25 kt. Seas 2 to 4 ft. A chance of rain.
.SUN...E winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to
8 ft. Patchy fog. Rain. Vsby 1 NM or less.
.SUN NIGHT...NE winds 10 to 15 kt, becoming NW after midnight.
Gusts up to 25 kt. Seas 6 to 9 ft. Patchy fog. A chance of rain.
Vsby 1 NM or less.
.MON...NW winds 10 to 15 kt. Seas 4 to 6 ft.
.MON NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas
4 to 6 ft.
.TUE...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft.
.TUE NIGHT...W winds 10 to 15 kt. Seas 2 to 4 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.

$$

ANZ251-240430-
Massachusetts Bay and Ipswich Bay-
1024 AM EST Fri Feb 23 2018

.THIS AFTERNOON...SE winds 5 to 10 kt, increasing to 10 to 15 kt
with gusts up to 20 kt. Seas 2 to 3 ft. Rain likely.
.TONIGHT...S winds 10 to 15 kt, becoming SW after midnight. Gusts
up to 25 kt. Seas 2 to 3 ft. Patchy fog. Rain likely. Vsby 1 to
3 NM.
.SAT...W winds 10 to 15 kt with gusts up to 20 kt, becoming NW
5 to 10 kt in the afternoon. Seas around 2 ft.
.SAT NIGHT...N winds 5 to 10 kt, becoming NE 15 to 20 kt with
gusts up to 25 kt after midnight. Seas 2 to 4 ft. A chance of
rain.
.SUN...E winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas 3 to 5 ft. Patchy fog. Rain.
Vsby 1 NM or less.
.SUN NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 4 to 7 ft. Patchy fog. Vsby 1 NM or less.
.MON...NW winds 5 to 10 kt. Seas 3 to 5 ft.
.MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft.
.TUE...W winds 5 to 10 kt. Seas 2 to 3 ft.
.TUE NIGHT...W 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.

$$

ANZ231-240430-
Cape Cod Bay-
1024 AM EST Fri Feb 23 2018

.THIS AFTERNOON...SE winds 5 to 10 kt. Seas around 2 ft. Rain
likely.
.TONIGHT...S winds 5 to 10 kt with gusts up to 20 kt, becoming W
10 to 15 kt after midnight. Seas 2 to 3 ft. Patchy fog. Rain
likely. Vsby 1 to 3 NM.
.SAT...NW winds 5 to 10 kt. Seas around 2 ft.
.SAT NIGHT...N winds 5 to 10 kt, becoming NE 10 to 15 kt with
gusts up to 25 kt after midnight. Seas 2 to 4 ft. A chance of
rain.
.SUN...E winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to
4 ft. Patchy fog. Rain. Vsby 1 NM or less.
.SUN NIGHT...SW winds 5 to 10 kt with gusts up to 20 kt, becoming
NW 10 to 15 kt after midnight. Seas 2 to 3 ft. Patchy fog. A
chance of rain. Vsby 1 to 3 NM.
.MON...NW winds 5 to 10 kt. Seas 2 to 3 ft.
.MON NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 3 ft.
.TUE...W winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft.
.TUE NIGHT...W 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.

$$

ANZ254-240430-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1024 AM EST Fri Feb 23 2018

.THIS AFTERNOON...SE winds 10 to 15 kt. Gusts up to 20 kt. Seas
2 to 3 ft. Rain likely.
.TONIGHT...S winds 10 to 15 kt, becoming W after midnight. Gusts
up to 25 kt. Seas 2 to 4 ft. Patchy fog. Rain likely. Vsby 1 to
3 NM.
.SAT...W winds 10 to 15 kt, becoming NW 5 to 10 kt in the
afternoon. Gusts up to 20 kt. Seas 2 to 4 ft.
.SAT NIGHT...N winds 5 to 10 kt, becoming NE 15 to 20 kt after
midnight. Gusts up to 25 kt. Seas 2 to 4 ft. A chance of rain.
.SUN...E winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. Gusts up to 30 kt. Seas 4 to 7 ft. Patchy fog. Rain.
Vsby 1 NM or less.
.SUN NIGHT...SW winds 10 to 15 kt, becoming NW after midnight.
Gusts up to 25 kt. Seas 5 to 8 ft. Patchy fog. A chance of rain.
Vsby 1 to 3 NM.
.MON...NW winds 10 to 15 kt. Seas 4 to 6 ft.
.MON NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas
4 to 6 ft.
.TUE...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft.
.TUE NIGHT...W winds 10 to 15 kt. Seas 3 to 5 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.

$$

ANZ255-240430-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1024 AM EST Fri Feb 23 2018

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 2 to 3 ft. Rain
likely.
.TONIGHT...SE winds 10 to 15 kt, becoming W 15 to 20 kt with
gusts up to 25 kt after midnight. Seas 2 to 4 ft. Patchy fog.
Rain likely. Vsby 1 NM or less.
.SAT...W winds 10 to 15 kt with gusts up to 20 kt, becoming NW
5 to 10 kt in the afternoon. Seas 2 to 4 ft.
.SAT NIGHT...NE winds 5 to 10 kt, increasing to 15 to 20 kt with
gusts up to 25 kt after midnight. Seas 2 to 4 ft. Rain likely.
.SUN...E winds 20 to 25 kt, becoming SE 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas 4 to 7 ft. Patchy fog. Rain.
Vsby 1 NM or less.
.SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
NW 5 to 10 kt after midnight. Seas 4 to 6 ft. Patchy fog. A
chance of rain. Vsby 1 to 3 NM.
.MON...NW winds 5 to 10 kt. Seas 4 to 6 ft.
.MON NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas
4 to 6 ft.
.TUE...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft.
.TUE NIGHT...W winds 10 to 15 kt. Seas 3 to 5 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.

$$

ANZ256-240430-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1024 AM EST Fri Feb 23 2018

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 2 to 3 ft. Patchy
fog. Rain likely with vsby 1 to 3 NM.
.TONIGHT...S winds 5 to 10 kt, becoming W 10 to 15 kt with gusts
up to 20 kt after midnight. Seas 2 to 4 ft. Patchy fog. Rain
likely. Vsby 1 NM or less.
.SAT...W winds 10 to 15 kt with gusts up to 20 kt, diminishing to
5 to 10 kt in the afternoon. Seas 2 to 4 ft.
.SAT NIGHT...NE winds 10 to 15 kt, becoming E 15 to 20 kt with
gusts up to 30 kt after midnight. Seas 3 to 5 ft. Rain likely.
today
.SUN...E winds 25 to 30 kt, becoming SE 15 to 20 kt in the
afternoon. Seas 5 to 8 ft. Patchy fog. Rain. Vsby 1 NM or less.
.SUN NIGHT...W winds 10 to 15 kt, becoming NW 5 to 10 kt after
midnight. Seas 4 to 6 ft. Patchy fog. A chance of rain. Vsby 1 NM
or less.
.MON...NW winds 5 to 10 kt. Seas 3 to 5 ft.
.MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 ft.
.TUE...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft.
.TUE NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 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.

$$

ANZ232-240430-
Nantucket Sound-
1024 AM EST Fri Feb 23 2018

.THIS AFTERNOON...SE winds 5 to 10 kt. Seas around 2 ft. Rain
likely.
.TONIGHT...S winds around 10 kt, becoming W after midnight. Gusts
up to 20 kt. Seas 2 to 3 ft. Patchy fog. Rain likely. Vsby 1 to
3 NM.
.SAT...W winds 10 to 15 kt, becoming NW 5 to 10 kt in the
afternoon. Seas 2 to 3 ft.
.SAT NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 25 kt after midnight. Seas 2 to 3 ft. A chance of
rain.
.SUN...E winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
5 ft. Patchy fog. Rain. Vsby 1 NM or less.
.SUN NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas 2 to 3 ft. Patchy fog. A chance of rain. Vsby 1 to 3 NM.
.MON...NW winds 5 to 10 kt. Seas 2 to 3 ft.
.MON NIGHT...NW 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...W winds 5 to 10 kt. Seas 2 to 4 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.

$$

ANZ233-240430-
Vineyard Sound-
1024 AM EST Fri Feb 23 2018

.THIS AFTERNOON...E winds around 10 kt. Seas 1 foot or less. Rain
likely.
.TONIGHT...S winds around 10 kt, becoming W after midnight. Seas
around 2 ft. Patchy fog. Rain likely. Vsby 1 to 3 NM.
.SAT...W winds 5 to 10 kt. Seas around 2 ft.
.SAT NIGHT...NE winds 5 to 10 kt, increasing to 15 to 20 kt with
gusts up to 25 kt after midnight. Seas 2 to 4 ft. Rain likely.
.SUN...E winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Seas 2 to 3 ft. Patchy fog. Rain. Vsby 1 NM or less.
.SUN NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas
2 to 3 ft. Patchy fog. Vsby 1 to 3 NM.
.MON...NW winds 5 to 10 kt. Seas 2 to 3 ft.
.MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft.
.TUE...W winds around 10 kt. Seas 2 to 4 ft.
.TUE NIGHT...W winds around 10 kt. Seas 2 to 4 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.

$$

ANZ234-240430-
Buzzards Bay-
1024 AM EST Fri Feb 23 2018

.THIS AFTERNOON...SE winds 5 to 10 kt. Seas 1 foot or less. Rain
likely.
.TONIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas
1 foot or less. Patchy fog. Rain likely. Vsby 1 to 3 NM.
.SAT...W winds 5 to 10 kt. Seas 1 foot or less.
.SAT NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt after midnight. Seas around 2 ft. Rain likely.
.SUN...E winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
3 ft. Patchy fog. Rain. Vsby 1 NM or less.
.SUN NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Patchy fog. A
chance of rain. Vsby 1 to 3 NM.
.MON...NW winds 5 to 10 kt. Seas 2 to 3 ft.
.MON NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft.
.TUE...W winds 5 to 10 kt. Seas 2 to 3 ft.
.TUE NIGHT...W 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.

$$

ANZ235-240430-
Rhode Island Sound-
1024 AM EST Fri Feb 23 2018

.THIS AFTERNOON...E winds around 10 kt. Seas 2 to 3 ft. Patchy
fog. Rain likely.
.TONIGHT...S winds 5 to 10 kt, becoming W 10 to 15 kt with gusts
up to 20 kt after midnight. Seas 2 to 3 ft. Patchy fog. Rain
likely. Vsby 1 to 3 NM.
.SAT...W winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. Seas 2 to 3 ft.
.SAT NIGHT...NE winds 10 to 15 kt, increasing to 15 to 20 kt with
gusts up to 25 kt after midnight. Seas 2 to 4 ft. Rain likely.
.SUN...E winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas 3 to 5 ft. Patchy fog. Rain.
Vsby 1 NM or less.
.SUN NIGHT...NW winds 5 to 10 kt. Seas 3 to 5 ft. Patchy fog. A
chance of rain. Vsby 1 to 3 NM.
.MON...NW winds 5 to 10 kt. Seas 3 to 5 ft.
.MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 ft.
.TUE...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft.
.TUE NIGHT...W winds 10 to 15 kt. Seas 3 to 5 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.

$$

ANZ237-240430-
Block Island Sound-
1024 AM EST Fri Feb 23 2018

.THIS AFTERNOON...E winds around 10 kt. Seas 2 to 3 ft. Patchy
fog. Rain likely with vsby 1 to 3 NM.
.TONIGHT...S winds 5 to 10 kt, becoming W 10 to 15 kt with gusts
up to 20 kt after midnight. Seas 2 to 3 ft. Patchy fog. A chance
of rain. Vsby 1 NM or less.
.SAT...W winds 5 to 10 kt. Seas 2 to 3 ft.
.SAT NIGHT...NE winds 5 to 10 kt, increasing to 15 to 20 kt with
gusts up to 30 kt after midnight. Seas 2 to 4 ft. Rain likely.
.SUN...E winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas 3 to 5 ft. Patchy fog. Rain.
Vsby 1 NM or less.
.SUN NIGHT...NW winds 5 to 10 kt. Seas 3 to 5 ft. Patchy fog. A
chance of rain. Vsby 1 to 3 NM.
.MON...NW winds 5 to 10 kt. Seas 2 to 4 ft.
.MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft.
.TUE...W winds around 10 kt. Seas 2 to 4 ft.
.TUE NIGHT...W winds 10 to 15 kt. Seas 2 to 4 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.

$$

ANZ230-240430-
Boston Harbor-
1024 AM EST Fri Feb 23 2018

.THIS AFTERNOON...SE winds 5 to 10 kt. Gusts up to 20 kt. Waves
around 2 ft. Rain likely.
.TONIGHT...S winds 5 to 10 kt, becoming W after midnight. Gusts
up to 20 kt. Waves around 2 ft. Patchy fog. Rain likely. Vsby
1 to 3 NM.
.SAT...NW winds 5 to 10 kt. Gusts up to 20 kt in the morning.
Waves 1 foot or less.
.SAT NIGHT...N winds 5 to 10 kt, becoming NE 10 to 15 kt with
gusts up to 20 kt after midnight. Waves 2 to 3 ft. A chance of
rain.
.SUN...E winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Waves 2 to 4 ft. Patchy fog. Rain.
Vsby 1 to 3 NM.
.SUN NIGHT...NW winds 5 to 10 kt. Waves 1 foot or less, except
2 to 4 ft at the outer harbor entrance. Patchy fog. Vsby 1 to
3 NM.
.MON...W winds 5 to 10 kt. Waves 1 foot or less, except 2 to 4 ft
at the outer harbor entrance.
.MON NIGHT...NW winds 5 to 10 kt. Waves 1 foot or less.
.TUE...W winds 5 to 10 kt. Waves 1 foot or less.
.TUE NIGHT...W 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.

$$

ANZ236-240430-
Narragansett Bay-
1024 AM EST Fri Feb 23 2018

.THIS AFTERNOON...SE winds 5 to 10 kt. Waves around 2 ft. Patchy
fog. Rain likely.
.TONIGHT...S winds 5 to 10 kt, becoming W after midnight. Waves
around 2 ft. Patchy fog. Rain likely. Vsby 1 to 3 NM.
.SAT...NW winds 5 to 10 kt. Waves around 2 ft.
.SAT NIGHT...N winds 5 to 10 kt, becoming NE 10 to 15 kt with
gusts up to 20 kt after midnight. Waves around 2 ft. Rain likely.
.SUN...E winds 15 to 20 kt, becoming NE 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Waves 2 to 3 ft. Patchy fog. Rain.
Vsby 1 to 3 NM.
.SUN NIGHT...NW winds around 5 kt. Waves 2 to 3 ft. Patchy fog.
Vsby 1 to 3 NM.
.MON...NW winds 5 to 10 kt. Waves 2 to 3 ft.
.MON NIGHT...NW winds 5 to 10 kt. Waves 2 to 3 ft.
.TUE...W winds 5 to 10 kt. Waves 2 to 3 ft.
.TUE NIGHT...W winds 5 to 10 kt. Waves 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.

$$

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.