Coastal Waters Forecast
Issued by NWS Boston, MA

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FZUS51 KBOX 142302
CWFBOX

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

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

ANZ200-151200-
701 PM EDT Thu Mar 14 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
Low pres approaches tonight and move through Fri, bringing increased
winds and rain showers. High pres returns Sat. A frontal system
pushes in on Sun, bringing more showers and perhaps gusty winds.
Lingering showers possible early next week.

$$

ANZ250-151200-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
701 PM EDT Thu Mar 14 2024

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

$$

ANZ251-151200-
Massachusetts Bay and Ipswich Bay-
701 PM EDT Thu Mar 14 2024

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

$$

ANZ231-151200-
Cape Cod Bay-
701 PM EDT Thu Mar 14 2024

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

$$

ANZ254-151200-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
701 PM EDT Thu Mar 14 2024

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

$$

ANZ255-151200-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
701 PM EDT Thu Mar 14 2024

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

$$

ANZ256-151200-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
701 PM EDT Thu Mar 14 2024

.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...SW winds 10 to 15 kt, becoming W in the afternoon. Gusts
up to 20 kt. Seas 2 to 4 ft. Patchy fog in the morning. A chance
of showers 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 3 to 4 ft.
.SAT...N winds 5 to 10 kt, becoming SW in the afternoon. Seas
2 to 4 ft.
.SAT NIGHT...S winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. Seas 3 to 4 ft.
.SUN AND SUN NIGHT...NW winds 15 to 20 kt with gusts up to 30 kt.
Seas 3 to 5 ft. A chance of showers.
.MON THROUGH TUE 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.

$$

ANZ232-151200-
Nantucket Sound-
701 PM EDT Thu Mar 14 2024

.TONIGHT...SE winds 5 to 10 kt. Gusts up to 20 kt after midnight.
Seas 1 foot or less. Patchy fog. A slight chance of showers after
midnight. Vsby 1 to 3 NM, decreasing to 1 NM or less after
midnight.
.FRI...S winds 10 to 15 kt, becoming NW in the afternoon. Gusts
up to 25 kt. Seas 2 to 3 ft. Patchy fog in the morning. A chance
of showers in the morning with vsby 1 NM or less.
.FRI NIGHT...N winds 10 to 15 kt with gusts up to 25 kt,
diminishing to 5 to 10 kt after midnight. 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 around 2 ft.
.SUN AND SUN NIGHT...W winds 15 to 20 kt with gusts up to 30 kt.
Seas 2 to 3 ft. A chance of showers.
.MON THROUGH TUE NIGHT...W winds 15 to 20 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.

$$

ANZ233-151200-
Vineyard Sound-
701 PM EDT Thu Mar 14 2024

.TONIGHT...SE winds 5 to 10 kt. Gusts up to 20 kt after midnight.
Seas 1 foot or less. Patchy fog. A chance of showers after
midnight. Vsby 1 to 3 NM, decreasing to 1 NM or less after
midnight.
.FRI...S winds 10 to 15 kt, becoming NW in the afternoon. Gusts
up to 20 kt. Seas 2 to 3 ft. Patchy fog in the morning. Showers
likely 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, increasing to 15 to 20 kt after
midnight. Seas 2 to 3 ft.
.SUN AND SUN NIGHT...W winds 15 to 20 kt with gusts up to 30 kt.
Seas 2 to 4 ft. A chance of showers.
.MON THROUGH TUE 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.

$$

ANZ234-151200-
Buzzards Bay-
701 PM EDT Thu Mar 14 2024

.TONIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. Patchy fog.
A chance of showers after midnight. Vsby 1 to 3 NM, decreasing to
1 NM or less after midnight.
.FRI...S winds around 10 kt, becoming NW in the afternoon. Gusts
up to 20 kt. Seas around 2 ft. Patchy fog in the morning. Showers
likely in the morning.
.FRI NIGHT...N winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft.
.SAT...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas
1 foot or less.
.SAT NIGHT...S winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. Seas around 2 ft.
.SUN AND SUN NIGHT...W winds 15 to 20 kt with gusts up to 30 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.
.TUE AND TUE NIGHT...W winds around 15 kt with gusts up to 25 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.

$$

ANZ235-151200-
Rhode Island Sound-
701 PM EDT Thu Mar 14 2024

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

$$

ANZ237-151200-
Block Island Sound-
701 PM EDT Thu Mar 14 2024

.TONIGHT...SE winds 5 to 10 kt. Gusts up to 20 kt after midnight.
Seas 1 foot or less, then around 2 ft after midnight. Patchy fog.
Showers likely after midnight. Vsby 1 to 3 NM.
.FRI...SW winds around 10 kt, becoming NW in the afternoon. Seas
2 to 3 ft. A chance of showers in the morning.
.FRI NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft.
.SAT...NW 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...NW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft. A chance of showers.
.MON THROUGH TUE NIGHT...W winds 15 to 20 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.

$$

ANZ230-151200-
Boston Harbor-
701 PM EDT Thu Mar 14 2024

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

$$

ANZ236-151200-
Narragansett Bay-
701 PM EDT Thu Mar 14 2024

.TONIGHT...SE winds 5 to 10 kt. Waves 1 foot or less, then around
2 ft after midnight. Patchy fog. Showers likely after midnight.
Vsby 1 to 3 NM.
.FRI...SW winds 5 to 10 kt, becoming NW 10 to 15 kt with gusts up
to 20 kt in the afternoon. Waves 2 to 3 ft. Patchy fog in the
morning. A chance of showers in the morning.
.FRI NIGHT...N winds 5 to 10 kt. Waves 2 to 3 ft.
.SAT...NW winds around 5 kt, becoming SW 10 to 15 kt in the
afternoon. Waves around 2 ft.
.SAT NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Waves 2 to 3 ft.
.SUN AND SUN NIGHT...W winds 15 to 20 kt with gusts up to 30 kt.
Waves 2 to 4 ft. A chance of showers.
.MON THROUGH TUE 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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