Coastal Waters Forecast
Issued by NWS Boston, MA

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845
FZUS51 KBOX 221116
CWFBOX

Coastal Waters Forecast
National Weather Service Boston/Norton MA
716 AM EDT Sun Apr 22 2018

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

ANZ200-230000-
716 AM EDT Sun Apr 22 2018

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pressure remains over the waters through Monday, then shifts
the the east on Tuesday. Low pressure will move north along the
eastern seaboard Tuesday night and Wednesday, lifting over the
waters on Thursday.

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.

$$

ANZ250-230000-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
716 AM EDT Sun Apr 22 2018

.TODAY...NW winds 5 to 10 kt, becoming SW this afternoon. Seas
1 foot or less.
.TONIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas
around 2 ft.
.MON...N winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft.
.MON NIGHT...S winds 10 to 15 kt, becoming SW 5 to 10 kt after
midnight. Seas 2 to 3 ft.
.TUE...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the
afternoon. Seas 2 to 4 ft.
.TUE NIGHT...S winds 10 to 15 kt. Seas 2 to 4 ft. A chance of
rain.
.WED...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. Rain.
.WED NIGHT...SE winds 15 to 20 kt with gusts up to 25 kt. Seas
5 to 8 ft. A chance of rain.
.THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to
7 ft. A chance of showers.
.THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas
4 to 7 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.

$$

ANZ251-230000-
Massachusetts Bay and Ipswich Bay-
716 AM EDT Sun Apr 22 2018

.TODAY...NW winds 5 to 10 kt, becoming SE this afternoon. Seas
1 foot or less.
.TONIGHT...S winds 5 to 10 kt, becoming NW after midnight. Seas
1 foot or less.
.MON...N winds around 5 kt, becoming SE in the afternoon. Seas
1 foot or less.
.MON NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft.
.TUE...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the
afternoon. Seas 2 to 3 ft.
.TUE NIGHT...S winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Seas 2 to 3 ft. A chance of rain.
.WED...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Rain.
.WED NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 ft. A chance of rain.
.THU...SW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers.
.THU NIGHT...W 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.

$$

ANZ231-230000-
Cape Cod Bay-
716 AM EDT Sun Apr 22 2018

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

$$

ANZ254-230000-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
716 AM EDT Sun Apr 22 2018

.TODAY...W winds 5 to 10 kt. Seas 2 to 3 ft.
.TONIGHT...W winds 5 to 10 kt. Seas around 2 ft.
.MON...N winds around 5 kt, becoming E around 5 kt in the
afternoon. Seas around 2 ft.
.MON NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.TUE...S winds 5 to 10 kt. Seas around 2 ft.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 2 to 4 ft. A chance of
rain.
.WED...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to
8 ft. Rain.
.WED NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas
6 to 9 ft. Rain likely.
.THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to
8 ft.
.THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
4 to 7 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.

$$

ANZ255-230000-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
716 AM EDT Sun Apr 22 2018

.TODAY...NW winds 5 to 10 kt, becoming W this afternoon. Seas
2 to 3 ft.
.TONIGHT...W winds 5 to 10 kt. Seas around 2 ft.
.MON...N winds around 5 kt, becoming E in the afternoon. Seas
around 2 ft.
.MON NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.TUE...S winds 5 to 10 kt. Seas around 2 ft.
.TUE NIGHT...SE winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 3 to 5 ft. A chance of rain.
.WED...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to
9 ft. Rain.
.WED NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas
8 to 11 ft. A chance of rain.
.THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 6 to
9 ft.
.THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
4 to 7 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.

$$

ANZ256-230000-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
716 AM EDT Sun Apr 22 2018

.TODAY...NW winds 5 to 10 kt, becoming SW this afternoon. Seas
around 2 ft.
.TONIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas
around 2 ft.
.MON...N winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft.
.MON NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.TUE...S winds 5 to 10 kt. Seas around 2 ft.
.TUE NIGHT...SE winds 10 to 15 kt, increasing to 15 to 20 kt
after midnight. Seas 3 to 5 ft. A chance of rain.
.WED...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 7 to
10 ft. Rain.
.WED NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas
8 to 11 ft. A chance of rain.
.THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 6 to
9 ft. A chance of showers.
.THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas
5 to 7 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.

$$

ANZ232-230000-
Nantucket Sound-
716 AM EDT Sun Apr 22 2018

.TODAY...NW winds 5 to 10 kt, becoming SW this afternoon. Seas
1 foot or less.
.TONIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas
1 foot or less.
.MON...N winds around 5 kt, becoming E in the afternoon. Seas
1 foot or less.
.MON NIGHT...S winds 5 to 10 kt. Seas 1 foot or less.
.TUE...S winds 5 to 10 kt. Seas 1 foot or less.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
rain.
.WED...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Rain.
.WED NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 4 ft. A chance of rain.
.THU...SW 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 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.

$$

ANZ233-230000-
Vineyard Sound-
716 AM EDT Sun Apr 22 2018

.TODAY...NW winds 5 to 10 kt, becoming SW this afternoon. Seas
1 foot or less.
.TONIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas
1 foot or less.
.MON...N winds 5 to 10 kt, becoming SE in the afternoon. Seas
1 foot or less.
.MON NIGHT...S winds 5 to 10 kt. Seas 1 foot or less.
.TUE...S winds 5 to 10 kt. Seas 1 foot or less.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
rain.
.WED...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Rain.
.WED NIGHT...S winds 15 to 20 kt. Seas 2 to 4 ft. A chance of
rain.
.THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. A chance of showers.
.THU NIGHT...W 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.

$$

ANZ234-230000-
Buzzards Bay-
716 AM EDT Sun Apr 22 2018

.TODAY...NW winds around 5 kt, becoming SW this afternoon. Seas
1 foot or less.
.TONIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas
1 foot or less.
.MON...N winds around 5 kt, becoming SE in the afternoon. Seas
1 foot or less.
.MON NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Patchy fog.
Vsby 1 to 3 NM.
.TUE...S winds 5 to 10 kt. Seas 1 foot or less.
.TUE NIGHT...S winds 5 to 10 kt, becoming SE 10 to 15 kt after
midnight. Seas around 2 ft. A chance of rain.
.WED...SE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Rain.
.WED NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. A chance of rain.
.THU...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers.
.THU NIGHT...W 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.

$$

ANZ235-230000-
Rhode Island Sound-
716 AM EDT Sun Apr 22 2018

.TODAY...NW winds 5 to 10 kt, becoming SW this afternoon. Seas
around 2 ft.
.TONIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas
around 2 ft.
.MON...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
1 foot or less.
.MON NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.TUE...S winds 5 to 10 kt. Seas around 2 ft.
.TUE NIGHT...SE winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 4 ft. A chance of rain.
.WED...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to
8 ft. Rain.
.WED NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas
7 to 10 ft. A chance of rain.
.THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to
8 ft. A chance of showers.
.THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas
4 to 7 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.

$$

ANZ237-230000-
Block Island Sound-
716 AM EDT Sun Apr 22 2018

.TODAY...NW winds around 5 kt, becoming SW this afternoon. Seas
around 2 ft.
.TONIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas
around 2 ft.
.MON...NE winds around 5 kt, becoming SE in the afternoon. Seas
1 foot or less.
.MON NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.TUE...S winds 5 to 10 kt. Seas around 2 ft.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 2 to 4 ft. A chance of
rain.
.WED...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to
8 ft. Rain.
.WED NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
5 to 8 ft. A chance of rain.
.THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to
7 ft. A chance of showers.
.THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas
4 to 6 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.

$$

ANZ230-230000-
Boston Harbor-
716 AM EDT Sun Apr 22 2018

.TODAY...NW winds 5 to 10 kt, becoming NE this afternoon. Waves
1 foot or less.
.TONIGHT...S winds around 5 kt, becoming NW around 5 kt after
midnight. Waves 1 foot or less.
.MON...N winds around 5 kt, becoming SE in the afternoon. Waves
1 foot or less.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 foot or less.
.TUE...S winds 5 to 10 kt. Waves 1 foot or less.
.TUE NIGHT...S winds 5 to 10 kt. Waves 1 foot or less. A chance
of rain.
.WED...SE winds 5 to 10 kt. Waves 2 to 3 ft. Rain.
.WED NIGHT...SE winds 5 to 10 kt. Waves 2 to 3 ft. A chance of
rain.
.THU...SW winds 5 to 10 kt. Waves around 2 ft. A chance of
showers.
.THU NIGHT...W winds 5 to 10 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.

$$

ANZ236-230000-
Narragansett Bay-
716 AM EDT Sun Apr 22 2018

.TODAY...NW winds around 5 kt, becoming SW this afternoon. Waves
1 foot or less.
.TONIGHT...SW winds 5 to 10 kt, becoming N after midnight. Waves
1 foot or less.
.MON...N winds around 5 kt, becoming SE in the afternoon. Waves
1 foot or less.
.MON NIGHT...S winds 5 to 10 kt, diminishing to around 5 kt after
midnight. Waves 1 foot or less.
.TUE...S winds around 5 kt, increasing to 5 to 10 kt in the
afternoon. Waves around 2 ft.
.TUE NIGHT...S winds 5 to 10 kt, becoming SE 10 to 15 kt after
midnight. Waves 2 to 4 ft. A chance of rain.
.WED...SE winds 10 to 15 kt with gusts up to 20 kt. Waves 4 to
6 ft. Rain.
.WED NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Waves
4 to 6 ft. A chance of rain.
.THU...SW winds 5 to 10 kt. Waves 3 to 5 ft. A chance of showers.
.THU NIGHT...W winds 5 to 10 kt. Waves 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.

$$

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