Coastal Waters Forecast
Issued by NWS Boston, MA

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FZUS51 KBOX 141402
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1001 AM EDT Thu Mar 14 2024

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

ANZ200-150300-
1001 AM EDT Thu Mar 14 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pres builds over the region today bringing dry and quiet
weather. Low pres approaches Thursday night and slides through on
Friday bringing increased winds and rain showers. High pres builds
back in on Saturday. A frontal system pushes in on Sunday bringing
more showers and perhaps gusty winds.

$$

ANZ250-150300-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1001 AM EDT Thu Mar 14 2024

.THIS AFTERNOON...SE winds 5 to 10 kt. Seas around 2 ft.
.TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft. A chance of
showers after midnight with vsby 1 to 3 NM.
.FRI...SE winds 10 to 15 kt, becoming NE in the afternoon. Gusts
up to 20 kt. Seas 2 to 3 ft. Patchy fog. Showers likely with
patchy drizzle in the morning, then patchy drizzle in the
afternoon. Vsby 1 to 3 NM.
.FRI NIGHT...N winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 4 ft.
.SAT...NW winds 5 to 10 kt, becoming W in the afternoon. Seas
2 to 4 ft.
.SAT NIGHT...S winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. Gusts up to 25 kt. Seas 2 to 4 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.
.MON AND MON NIGHT...W winds 10 to 15 kt, increasing to 15 to
20 kt. Gusts up to 25 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.

$$

ANZ251-150300-
Massachusetts Bay and Ipswich Bay-
1001 AM EDT Thu Mar 14 2024

.THIS AFTERNOON...SE winds around 5 kt. Seas around 2 ft.
.TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Patchy fog
after midnight. A chance of showers after midnight with vsby 1 to
3 NM.
.FRI...E winds 5 to 10 kt, becoming N 10 to 15 kt in the
afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. Patchy fog. A
chance of showers with patchy drizzle in the morning, then patchy
drizzle in the afternoon. Vsby 1 to 3 NM in the morning.
.FRI NIGHT...N winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft.
.SAT AND SAT NIGHT...S winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 3 ft.
.SUN AND SUN NIGHT...SW winds around 15 kt, becoming W. Gusts up
to 25 kt. Seas 2 to 4 ft. A chance of showers.
.MON AND MON NIGHT...W winds 10 to 15 kt with gusts up to 25 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.

$$

ANZ231-150300-
Cape Cod Bay-
1001 AM EDT Thu Mar 14 2024

.THIS AFTERNOON...SE winds 5 to 10 kt. Seas around 2 ft.
.TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Patchy fog. A
chance of showers after midnight. Vsby 1 to 3 NM.
.FRI...S winds 10 to 15 kt, becoming NW in the afternoon. Gusts
up to 20 kt. Seas around 2 ft. Patchy fog. Showers likely with
patchy drizzle in the morning, then patchy drizzle in the
afternoon. Vsby 1 to 3 NM in the morning.
.FRI NIGHT...N winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas around 2 ft.
Patchy fog in the evening.
.SAT...N winds 5 to 10 kt, becoming NE in the afternoon. Seas
around 2 ft.
.SAT NIGHT...S winds 10 to 15 kt. Gusts up to 25 kt after
midnight. Seas 2 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 2 to 4 ft. A chance of showers.
.MON AND MON NIGHT...W winds 10 to 15 kt with gusts up to 25 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.

$$

ANZ254-150300-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1001 AM EDT Thu Mar 14 2024

.THIS AFTERNOON...SE winds 5 to 10 kt with gusts up to 20 kt.
Seas around 2 ft.
.TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Patchy fog in
the evening. A chance of showers after midnight. Vsby 1 to 3 NM
in the evening.
.FRI...S winds 10 to 15 kt, becoming NW in the afternoon. Gusts
up to 20 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers with
patchy drizzle in the morning, then patchy drizzle in the
afternoon. Vsby 1 NM or less, increasing to 1 to 3 NM in the
afternoon.
.FRI NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 ft. Patchy fog in the evening.
.SAT...NW winds 5 to 10 kt. Seas 3 to 5 ft.
.SAT NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas
3 to 4 ft.
.SUN AND SUN NIGHT...S winds 15 to 20 kt, becoming W. Gusts up to
30 kt. Seas 3 to 5 ft. A chance of showers.
.MON AND MON NIGHT...W winds 10 to 15 kt, increasing to 15 to
20 kt. Gusts up to 30 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.

$$

ANZ255-150300-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1001 AM EDT Thu Mar 14 2024

.THIS AFTERNOON...SE winds 5 to 10 kt with gusts up to 20 kt.
Seas around 2 ft. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM
or less.
.TONIGHT...SE winds 5 to 10 kt. Gusts up to 20 kt after midnight.
Seas around 2 ft. Patchy fog. A chance of showers after midnight.
Vsby 1 NM or less.
.FRI...S winds 10 to 15 kt, becoming W in the afternoon. Gusts up
to 20 kt. Seas 2 to 4 ft. Patchy fog. Patchy drizzle. Vsby 1 NM
or less in the morning.
.FRI NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 ft. Patchy fog in the evening.
.SAT...N winds 10 to 15 kt, becoming W in the afternoon. Seas
3 to 5 ft.
.SAT NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 4 ft.
.SUN...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. A chance of showers.
.SUN NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 6 ft. A chance of showers.
.MON AND MON NIGHT...W winds 15 to 20 kt with gusts up to 30 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.

$$

ANZ256-150300-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1001 AM EDT Thu Mar 14 2024

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

$$

ANZ232-150300-
Nantucket Sound-
1001 AM EDT Thu Mar 14 2024

.THIS AFTERNOON...SE winds 5 to 10 kt. Seas around 2 ft. Patchy
fog with vsby 1 NM or less.
.TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Patchy fog. A
chance of showers after midnight. Vsby 1 NM or less.
.FRI...S winds 10 to 15 kt, becoming NW in the afternoon. Gusts
up to 20 kt. Seas around 2 ft. Patchy fog. A chance of showers
with patchy drizzle in the morning, then patchy drizzle in the
afternoon. Vsby 1 to 3 NM in the morning.
.FRI NIGHT...N winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Patchy fog in the evening.
.SAT...N winds 5 to 10 kt, becoming NW in the afternoon. Seas
around 2 ft.
.SAT NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas around 2 ft.
.SUN AND SUN NIGHT...SW 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.
.MON AND MON NIGHT...W winds 10 to 15 kt, increasing to 15 to
20 kt. Gusts up to 25 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.

$$

ANZ233-150300-
Vineyard Sound-
1001 AM EDT Thu Mar 14 2024

.THIS AFTERNOON...SE winds around 5 kt. Seas around 2 ft.
.TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Patchy fog. A
chance of showers after midnight. Vsby 1 NM or less.
.FRI...S winds around 10 kt, becoming NW in the afternoon. Gusts
up to 20 kt. Seas around 2 ft. Patchy fog. Patchy drizzle. A
chance of showers in the morning.
.FRI NIGHT...N winds around 10 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft.
.SAT...N winds 5 to 10 kt, becoming SW in the afternoon. Seas
around 2 ft.
.SAT NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 4 ft.
.SUN AND SUN NIGHT...SW 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.
.MON AND MON NIGHT...W winds 10 to 15 kt with gusts up to 25 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.

$$

ANZ234-150300-
Buzzards Bay-
1001 AM EDT Thu Mar 14 2024

.THIS AFTERNOON...SE winds around 5 kt. Seas around 2 ft.
.TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Patchy fog. A
chance of showers after midnight. Vsby 1 NM or less.
.FRI...S winds 5 to 10 kt, becoming NW in the afternoon. Gusts up
to 20 kt. Seas around 2 ft. Patchy fog. A chance of showers with
patchy drizzle in the morning, then patchy drizzle in the
afternoon. Vsby 1 to 3 NM in the morning.
.FRI NIGHT...N winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft.
.SAT...N winds 5 to 10 kt, becoming SW in the afternoon. Seas
around 2 ft.
.SAT NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 4 ft.
.SUN AND SUN NIGHT...SW winds around 15 kt, becoming W. Gusts up
to 25 kt. Seas 2 to 4 ft. A chance of showers.
.MON AND MON NIGHT...W winds 10 to 15 kt with gusts up to 25 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.

$$

ANZ235-150300-
Rhode Island Sound-
1001 AM EDT Thu Mar 14 2024

.THIS AFTERNOON...E winds around 5 kt. Seas around 2 ft. Patchy
fog with vsby 1 NM or less.
.TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Patchy fog. A
chance of showers after midnight. Vsby 1 NM or less.
.FRI...S winds 10 to 15 kt, becoming NW 5 to 10 kt in the
afternoon. Gusts up to 20 kt. Seas 2 to 3 ft. Patchy fog. Patchy
drizzle. Vsby 1 NM or less in the morning.
.FRI NIGHT...N winds around 10 kt. Gusts up to 20 kt in the
evening. Seas 2 to 4 ft.
.SAT AND SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft.
.SUN AND SUN NIGHT...SW 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.
.MON AND MON NIGHT...W winds 10 to 15 kt, increasing to 15 to
20 kt. Gusts up to 25 kt. Seas 3 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.

$$

ANZ237-150300-
Block Island Sound-
1001 AM EDT Thu Mar 14 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. Patchy fog. A
chance of showers after midnight. Vsby 1 NM or less.
.FRI...S winds 5 to 10 kt, becoming W in the afternoon. Gusts up
to 20 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 NM or less in the
morning.
.FRI NIGHT...N winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. A chance of showers in the evening.
.SAT AND SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft.
.SUN...SW winds around 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. A chance of showers.
.SUN NIGHT THROUGH MON NIGHT...W winds 10 to 15 kt with gusts up
to 25 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.

$$

ANZ230-150300-
Boston Harbor-
1001 AM EDT Thu Mar 14 2024

.THIS AFTERNOON...E winds around 5 kt. Waves 1 foot or less.
.TONIGHT...SE winds 5 to 10 kt. Waves 1 foot or less. Patchy fog
after midnight. A chance of showers after midnight with vsby 1 to
3 NM.
.FRI...E winds 5 to 10 kt, becoming N in the afternoon. Gusts up
to 20 kt. Waves around 2 ft. Showers likely with patchy drizzle
in the morning, then patchy drizzle in the afternoon. Patchy fog
in the morning with vsby 1 to 3 NM.
.FRI NIGHT...N winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Waves around 2 ft in the evening, then 1 foot or less.
.SAT...NW winds 5 to 10 kt, becoming NE in the afternoon. Waves
1 foot or less.
.SAT NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Waves around 2 ft.
.SUN AND SUN NIGHT...SW winds around 15 kt, becoming W. Gusts up
to 20 kt. Waves around 2 ft. A chance of showers.
.MON AND MON NIGHT...W 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.

$$

ANZ236-150300-
Narragansett Bay-
1001 AM EDT Thu Mar 14 2024

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

$$

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