Coastal Waters Forecast
Issued by NWS Boston, MA

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FZUS51 KBOX 131401
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1001 AM EDT Wed Mar 13 2024

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

ANZ200-140300-
1001 AM EDT Wed Mar 13 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pres builds over the region supporting dry and quiet weather
over the coastal waters through Thursday. Low pressure approaches
Thursday night through Friday bringing increased winds and rain
showers to the waters. High pres builds back in on Saturday.

$$

ANZ250-140300-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1001 AM EDT Wed Mar 13 2024

.THIS AFTERNOON...N winds 5 to 10 kt, becoming NE. Seas 2 to
3 ft.
.TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft.
.THU...SE winds 5 to 10 kt. Seas around 2 ft.
.THU NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. A chance of
showers after midnight.
.FRI AND FRI NIGHT...NE winds around 10 kt with gusts up to
20 kt. Seas 2 to 4 ft. A chance of showers.
.SAT...N winds around 10 kt. Seas 2 to 4 ft. A chance of showers.
.SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft.
.SUN...S winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
5 ft. A chance of showers.
.SUN NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 4 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.

$$

ANZ251-140300-
Massachusetts Bay and Ipswich Bay-
1001 AM EDT Wed Mar 13 2024

.THIS AFTERNOON...N winds around 5 kt, becoming E. Seas around
2 ft.
.TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft.
.THU...S winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft.
.THU NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. A chance of
showers after midnight.
.FRI AND FRI NIGHT...N winds 10 to 15 kt. Seas 2 to 3 ft. A
chance of showers.
.SAT...N winds around 10 kt. Seas 2 to 3 ft. A chance of showers.
.SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft.
.SUN AND SUN NIGHT...S winds 10 to 15 kt, becoming W. 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.

$$

ANZ231-140300-
Cape Cod Bay-
1001 AM EDT Wed Mar 13 2024

.THIS AFTERNOON...N winds around 5 kt, becoming NE. Seas around
2 ft.
.TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft.
.THU...SE winds 5 to 10 kt. Seas around 2 ft.
.THU NIGHT...SE winds 5 to 10 kt. Seas around 2 ft in the
evening, then 1 foot or less. A chance of showers after midnight.
.FRI...SE winds around 10 kt, becoming NE in the afternoon. Gusts
up to 20 kt. Seas 1 foot or less, then around 2 ft in the
afternoon. A chance of showers.
.FRI NIGHT...NE winds around 10 kt. Seas around 2 ft. A chance of
showers.
.SAT...N winds around 10 kt. Seas around 2 ft. A chance of
showers.
.SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft.
.SUN AND SUN NIGHT...S winds 15 to 20 kt, becoming W 10 to 15 kt.
Gusts up to 25 kt. Seas 2 to 4 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.

$$

ANZ254-140300-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1001 AM EDT Wed Mar 13 2024

.THIS AFTERNOON...N winds 5 to 10 kt. Seas 2 to 4 ft.
.TONIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft.
.THU...SE winds 5 to 10 kt. Seas around 2 ft.
.THU NIGHT...SE winds around 5 kt. Seas around 2 ft.
.FRI...S winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Gusts up to 20 kt. Seas 2 to 4 ft. A chance of
showers.
.FRI NIGHT...N winds around 10 kt. Seas 3 to 5 ft. A chance of
showers.
.SAT...N winds around 10 kt with gusts up to 20 kt. Seas 3 to
5 ft. A chance of showers.
.SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 4 ft.
.SUN AND SUN NIGHT...S winds 15 to 20 kt, becoming SW. Gusts up
to 30 kt. Seas 3 to 5 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.

$$

ANZ255-140300-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1001 AM EDT Wed Mar 13 2024

.THIS AFTERNOON...N winds 5 to 10 kt, becoming E. Seas 2 to 3 ft.
.TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft.
.THU...SE winds 5 to 10 kt, becoming SW in the afternoon. Seas
around 2 ft.
.THU NIGHT...SE winds 5 to 10 kt. Seas around 2 ft.
.FRI...S winds 10 to 15 kt, becoming W in the afternoon. Gusts up
to 25 kt. Seas 2 to 4 ft. A chance of showers.
.FRI NIGHT...NW winds 10 to 15 kt, becoming NE after midnight.
Gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers.
.SAT AND SAT NIGHT...N winds 10 to 15 kt, becoming SW. Gusts up
to 20 kt. Seas 3 to 5 ft.
.SUN AND SUN NIGHT...S winds 15 to 20 kt, becoming W. Gusts up to
25 kt. Seas 3 to 5 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.

$$

ANZ256-140300-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1001 AM EDT Wed Mar 13 2024

.THIS AFTERNOON...NE winds around 5 kt, becoming SE. Seas around
2 ft.
.TONIGHT...SE winds 5 to 10 kt. Gusts up to 20 kt after midnight.
Seas around 2 ft.
.THU...SE winds 5 to 10 kt, becoming W in the afternoon. Seas
around 2 ft.
.THU NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.FRI...SW winds 10 to 15 kt, becoming W in the afternoon. Gusts
up to 25 kt. Seas 2 to 4 ft. A chance of showers.
.FRI NIGHT...N winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 3 to 5 ft. A chance of showers.
.SAT AND SAT NIGHT...NW winds 10 to 15 kt, becoming SW with gusts
up to 20 kt. Seas 3 to 4 ft.
.SUN AND SUN NIGHT...S winds 15 to 20 kt, becoming W 10 to 15 kt.
Gusts up to 25 kt. Seas 3 to 5 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.

$$

ANZ232-140300-
Nantucket Sound-
1001 AM EDT Wed Mar 13 2024

.THIS AFTERNOON...N winds around 5 kt, becoming E around 5 kt.
Seas around 2 ft.
.TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft.
.THU...SE winds 5 to 10 kt. Seas around 2 ft.
.THU NIGHT...SE winds 5 to 10 kt. Seas around 2 ft in the
evening, then 1 foot or less.
.FRI...S winds 10 to 15 kt, becoming W in the afternoon. Gusts up
to 20 kt. Seas around 2 ft. A chance of showers.
.FRI NIGHT...N winds around 10 kt. Seas around 2 ft. A chance of
showers.
.SAT...N winds around 10 kt. Seas around 2 ft. A chance of
showers.
.SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft.
.SUN AND SUN NIGHT...S winds 15 to 20 kt, becoming W 10 to 15 kt.
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.

$$

ANZ233-140300-
Vineyard Sound-
1001 AM EDT Wed Mar 13 2024

.THIS AFTERNOON...N winds around 5 kt, becoming SE. Seas around
2 ft.
.TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft.
.THU...SE winds 5 to 10 kt, becoming S in the afternoon. Seas
around 2 ft.
.THU NIGHT...S winds 5 to 10 kt. Seas around 2 ft in the evening,
then 1 foot or less.
.FRI...S winds 10 to 15 kt, becoming W in the afternoon. Gusts up
to 20 kt. Seas around 2 ft. A chance of showers.
.FRI NIGHT...N winds around 10 kt. Seas 2 to 3 ft. A chance of
showers.
.SAT...NW winds around 10 kt. Seas around 2 ft. A chance of
showers.
.SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft.
.SUN AND SUN NIGHT...S winds 10 to 15 kt, becoming W. Gusts up to
25 kt. Seas 2 to 4 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.

$$

ANZ234-140300-
Buzzards Bay-
1001 AM EDT Wed Mar 13 2024

.THIS AFTERNOON...N winds around 5 kt, becoming S. Seas around
2 ft.
.TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft.
.THU...SE winds around 5 kt. Seas around 2 ft.
.THU NIGHT...SE winds 5 to 10 kt. Seas around 2 ft in the
evening, then 1 foot or less. A chance of showers after midnight.
.FRI...S winds 10 to 15 kt, becoming W in the afternoon. Gusts up
to 20 kt. Seas around 2 ft. A chance of showers.
.FRI NIGHT...N winds around 10 kt. Seas around 2 ft. A chance of
showers.
.SAT...NW winds around 10 kt. Seas around 2 ft. A chance of
showers.
.SAT NIGHT...SW winds around 10 kt with gusts up to 20 kt. Seas
around 2 ft.
.SUN AND SUN NIGHT...S winds 10 to 15 kt, becoming W. Gusts up to
25 kt. Seas 2 to 4 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.

$$

ANZ235-140300-
Rhode Island Sound-
1001 AM EDT Wed Mar 13 2024

.THIS AFTERNOON...N winds around 5 kt, becoming SE. Seas around
2 ft.
.TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft.
.THU...E winds 5 to 10 kt, becoming SW in the afternoon. Seas
around 2 ft.
.THU NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.FRI...SW winds 10 to 15 kt, becoming W in the afternoon. Gusts
up to 20 kt. Seas 2 to 3 ft. A chance of showers.
.FRI NIGHT...N winds around 10 kt. Seas 3 to 4 ft. A chance of
showers.
.SAT AND SAT NIGHT...NW winds 10 to 15 kt, becoming SW with gusts
up to 20 kt. Seas 2 to 3 ft.
.SUN AND SUN NIGHT...S winds 15 to 20 kt, becoming W 10 to 15 kt.
Gusts up to 25 kt. Seas 2 to 4 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.

$$

ANZ237-140300-
Block Island Sound-
1001 AM EDT Wed Mar 13 2024

.THIS AFTERNOON...NE winds around 5 kt, becoming SE. Seas around
2 ft.
.TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft.
.THU...NE winds around 5 kt, becoming SW around 5 kt in the
afternoon. Seas around 2 ft.
.THU NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.FRI...SW winds around 10 kt with gusts up to 20 kt, becoming W
in the afternoon. Seas 2 to 3 ft. A chance of showers.
.FRI NIGHT...N winds around 10 kt. Seas 2 to 3 ft. A chance of
showers.
.SAT AND SAT NIGHT...NW winds around 10 kt, becoming SW with
gusts up to 20 kt. Seas 2 to 3 ft.
.SUN AND SUN NIGHT...S winds 10 to 15 kt, becoming W. Gusts up to
25 kt. Seas 2 to 4 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.

$$

ANZ230-140300-
Boston Harbor-
1001 AM EDT Wed Mar 13 2024

.THIS AFTERNOON...N winds around 5 kt, becoming E. Waves 1 foot
or less, then around 2 ft.
.TONIGHT...SE winds 5 to 10 kt. Waves around 2 ft in the evening,
then 1 foot or less.
.THU...S winds around 5 kt, becoming E around 5 kt in the
afternoon. Waves 1 foot or less.
.THU NIGHT...SE winds 5 to 10 kt. Waves 1 foot or less. A chance
of showers after midnight.
.FRI AND FRI NIGHT...N winds 10 to 15 kt. Waves around 2 ft. A
chance of showers.
.SAT...N winds around 10 kt. Waves 1 foot or less. A chance of
showers.
.SAT NIGHT...S winds around 10 kt. Waves around 2 ft.
.SUN AND SUN NIGHT...S winds 10 to 15 kt, becoming W. Gusts up to
25 kt. Waves around 2 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.

$$

ANZ236-140300-
Narragansett Bay-
1001 AM EDT Wed Mar 13 2024

.THIS AFTERNOON...N winds around 5 kt, becoming S. Waves around
2 ft.
.TONIGHT...SE winds 5 to 10 kt. Waves 1 foot or less.
.THU...E winds around 5 kt, becoming W around 5 kt in the
afternoon. Waves around 2 ft in the morning, then 1 foot or less.
.THU NIGHT...S winds 5 to 10 kt. Waves 1 foot or less, then
around 2 ft after midnight. A chance of showers after midnight.
.FRI...S winds around 10 kt, becoming NW in the afternoon. Waves
2 to 3 ft. A chance of showers.
.FRI NIGHT...N winds around 10 kt. Waves 2 to 3 ft. A chance of
showers.
.SAT AND SAT NIGHT...NW winds around 10 kt, becoming SW with
gusts up to 20 kt. Waves 2 to 3 ft.
.SUN AND SUN NIGHT...S winds 10 to 15 kt, becoming W. Gusts up to
25 kt. Waves 2 to 4 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.

$$

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