Coastal Waters Forecast
Issued by NWS Boston, MA

Current Version | Previous Version | Text Only | 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 030916
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
416 AM EST Wed Mar 3 2021

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

ANZ200-032200-
416 AM EST Wed Mar 3 2021

.Synopsis for Massachusetts and Rhode Island coastal waters...
Warm front moves across the waters this morning. Gusty west winds
take over by midday and the afternoon before diminishing this
evening. A cold front then sweeps south tonight. High pressure
returns for Thursday through the weekend.

For additional information on possible hazardous weather for the
week ahead, please visit www.weather.gov/boston/ehwo.

$$

ANZ250-032200-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
416 AM EST Wed Mar 3 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM EST THIS AFTERNOON...

.TODAY...W winds 15 to 20 kt, diminishing to 10 to 15 kt this
afternoon. Gusts up to 30 kt. Seas 2 to 4 ft.
.TONIGHT...NW winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. Seas 2 to 4 ft.
.THU...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to
6 ft.
.THU NIGHT...NW winds 25 to 30 kt, diminishing to 20 to 25 kt
after midnight. Seas 4 to 7 ft. A chance of light freezing spray.
.FRI AND FRI NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt.
Seas 4 to 7 ft. A chance of light freezing spray.
.SAT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. A chance of light freezing spray.
.SAT NIGHT THROUGH SUN NIGHT...N winds 15 to 20 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.

$$

ANZ251-032200-
Massachusetts Bay and Ipswich Bay-
416 AM EST Wed Mar 3 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

.TODAY...W winds 15 to 20 kt, diminishing to 10 to 15 kt this
afternoon. Gusts up to 25 kt. Seas 2 to 3 ft.
.TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft.
.THU...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to
3 ft.
.THU NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas
3 to 4 ft. A chance of light freezing spray.
.FRI AND FRI NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft. A chance of light freezing spray.
.SAT THROUGH SUN NIGHT...NW winds 15 to 20 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.

$$

ANZ231-032200-
Cape Cod Bay-
416 AM EST Wed Mar 3 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

.TODAY...W winds 15 to 20 kt with gusts up to 30 kt, diminishing
to 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 2 to
4 ft.
.TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft.
.THU...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft.
.THU NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas
3 to 5 ft. A chance of light freezing spray.
.FRI AND FRI NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt.
Seas 3 to 5 ft. A chance of light freezing spray.
.SAT THROUGH SUN NIGHT...N winds 10 to 15 kt with gusts up to
20 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.

$$

ANZ254-032200-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
416 AM EST Wed Mar 3 2021

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

.TODAY...W winds 20 to 25 kt, diminishing to 15 to 20 kt this
afternoon. Gusts up to 30 kt. Seas 3 to 5 ft.
.TONIGHT...NW winds around 15 kt with gusts up to 25 kt. Seas
2 to 4 ft.
.THU...NW winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. Gusts up to 30 kt. Seas 4 to 6 ft.
.THU NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas
5 to 8 ft. A chance of light freezing spray.
.FRI AND FRI NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt.
Seas 5 to 8 ft. A chance of light freezing spray.
.SAT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. A chance of light freezing spray.
.SAT NIGHT THROUGH SUN NIGHT...N winds 10 to 15 kt with gusts up
to 20 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.

$$

ANZ255-032200-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
416 AM EST Wed Mar 3 2021

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

.TODAY...W winds 20 to 25 kt, diminishing to 15 to 20 kt this
afternoon. Gusts up to 30 kt. Seas 4 to 7 ft.
.TONIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.THU...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.THU NIGHT...NW winds 20 to 25 kt. Seas 4 to 7 ft. A chance of
light freezing spray.
.FRI...NW winds around 20 kt with gusts up to 25 kt. Seas 5 to
7 ft. A chance of light freezing spray.
.FRI NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas
5 to 8 ft.
.SAT AND SAT NIGHT...W winds 15 to 20 kt, becoming NW 10 to
15 kt. Seas 4 to 6 ft.
.SUN AND SUN NIGHT...NW winds 10 to 15 kt. Gusts up to 20 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.

$$

ANZ256-032200-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
416 AM EST Wed Mar 3 2021

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

.TODAY...W winds 20 to 25 kt, diminishing to 15 to 20 kt this
afternoon. Gusts up to 30 kt. Seas 4 to 7 ft.
.TONIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 3 to 5 ft.
.THU...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft.
.THU NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas
4 to 6 ft. A chance of light freezing spray.
.FRI...NW winds 20 to 25 kt. Seas 5 to 7 ft. A chance of light
freezing spray.
.FRI NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas
4 to 7 ft.
.SAT AND SAT NIGHT...NW winds 15 to 20 kt. Seas 3 to 5 ft.
.SUN AND SUN NIGHT...NW winds 10 to 15 kt. Gusts up to 20 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.

$$

ANZ232-032200-
Nantucket Sound-
416 AM EST Wed Mar 3 2021

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

.TODAY...W winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to
3 ft.
.TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft.
.THU...NW winds around 15 kt with gusts up to 20 kt. Seas around
2 ft.
.THU NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas
2 to 4 ft. A chance of light freezing spray.
.FRI...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft. A chance of light freezing spray.
.FRI NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 4 ft.
.SAT THROUGH SUN NIGHT...N winds 10 to 15 kt with gusts up to
20 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.

$$

ANZ233-032200-
Vineyard Sound-
416 AM EST Wed Mar 3 2021

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

.TODAY...W winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to
4 ft.
.TONIGHT...NW winds around 10 kt. Seas 2 to 3 ft.
.THU...NW winds around 10 kt, increasing to around 15 kt in the
afternoon. Gusts up to 20 kt. Seas around 2 ft.
.THU NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 4 ft. A chance of light freezing spray.
.FRI AND FRI NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft.
.SAT THROUGH SUN NIGHT...N winds 10 to 15 kt with gusts up to
20 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.

$$

ANZ234-032200-
Buzzards Bay-
416 AM EST Wed Mar 3 2021

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

.TODAY...W winds 15 to 20 kt, diminishing to 10 to 15 kt this
afternoon. Gusts up to 25 kt. Seas 2 to 4 ft.
.TONIGHT...NW winds around 10 kt. Seas around 2 ft.
.THU...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft.
.THU NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 3 ft.
.FRI AND FRI NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 3 ft.
.SAT THROUGH SUN NIGHT...N winds 10 to 15 kt with gusts up to
20 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.

$$

ANZ235-032200-
Rhode Island Sound-
416 AM EST Wed Mar 3 2021

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

.TODAY...W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
5 ft.
.TONIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 4 ft.
.THU...NW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 3 ft.
.THU NIGHT...NW winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. Gusts up to 30 kt. Seas 3 to 5 ft. A chance of
light freezing spray.
.FRI...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. A chance of light freezing spray.
.FRI NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas
3 to 5 ft.
.SAT AND SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft.
.SUN AND SUN NIGHT...NW winds 5 to 10 kt, becoming N 10 to 15 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.

$$

ANZ237-032200-
Block Island Sound-
416 AM EST Wed Mar 3 2021

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

.TODAY...W winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to
4 ft.
.TONIGHT...NW winds around 10 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft.
.THU...NW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 3 ft.
.THU NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas
3 to 5 ft. A chance of light freezing spray.
.FRI...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
5 ft. A chance of light freezing spray.
.FRI NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas
3 to 5 ft.
.SAT AND SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft.
.SUN AND SUN NIGHT...NW winds 10 to 15 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.

$$

ANZ230-032200-
Boston Harbor-
416 AM EST Wed Mar 3 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

.TODAY...W winds 10 to 15 kt with gusts up to 25 kt. Waves around
2 ft.
.TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Waves
1 foot or less.
.THU...NW winds 10 to 15 kt with gusts up to 25 kt. Waves around
2 ft.
.THU NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Waves
around 2 ft.
.FRI AND FRI NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt.
Waves around 2 ft.
.SAT THROUGH SUN NIGHT...NW winds 10 to 15 kt with gusts up to
20 kt. Waves 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.

$$

ANZ236-032200-
Narragansett Bay-
416 AM EST Wed Mar 3 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

.TODAY...W winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to
3 ft.
.TONIGHT...NW winds 5 to 10 kt. Waves around 2 ft.
.THU...NW winds 10 to 15 kt with gusts up to 20 kt. Waves around
2 ft.
.THU NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Waves
2 to 3 ft.
.FRI AND FRI NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt.
Waves around 2 ft.
.SAT THROUGH SUN NIGHT...NW winds 10 to 15 kt with gusts up to
20 kt. Waves 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.

$$

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

You can follow us on Facebook at
www.facebook.com/us.nationalweatherservice.boston.gov

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.