Coastal Waters Forecast
Issued by NWS Boston, MA

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FZUS51 KBOX 281402
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1001 AM EDT Thu Mar 28 2024

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

ANZ200-290300-
1001 AM EDT Thu Mar 28 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
A stalled frontal boundary remains along the eastern seaboard
this afternoon. Low pressure develops on this front over FL/GA and
tracks northeast tonight, intensifying into a gale center as it
tracks across Georges Bank Fri. This gale center will intensify into
a sub 980 mb low across the Maritimes Friday night and Saturday. A
weak clipper low moves rapidly across southern New England Saturday
night and Sunday morning. High pressure then builds over the MA/RI
waters later Sunday into Monday.

$$

ANZ250-290300-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1001 AM EDT Thu Mar 28 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING...
...GALE WATCH IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY
MORNING...

.THIS AFTERNOON...N winds 5 to 10 kt. Seas 3 to 5 ft. Patchy fog.
Rain. Vsby 1 NM or less.
.TONIGHT...N winds 10 to 15 kt with gusts up to 20 kt, increasing
to 15 to 20 kt with gusts up to 30 kt after midnight. Seas 3 to
5 ft, building to 5 to 7 ft after midnight. Rain. Patchy fog in
the evening. Vsby 1 NM or less, increasing to 1 to 3 NM after
midnight.
.FRI...NW winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to
7 ft. Rain likely. Vsby 1 to 3 NM in the morning.
.FRI NIGHT...NW winds 25 to 30 kt with gusts up to 40 kt. Seas
5 to 8 ft. A chance of rain in the evening.
.SAT...W winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to
7 ft.
.SAT NIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas
3 to 5 ft.
.SUN THROUGH MON 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.

$$

ANZ251-290300-
Massachusetts Bay and Ipswich Bay-
1001 AM EDT Thu Mar 28 2024

...GALE WATCH IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY
MORNING...

.THIS AFTERNOON...N winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog.
Rain. Vsby 1 NM or less.
.TONIGHT...N winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Rain. Patchy fog in
the evening. Vsby 1 NM or less, increasing to 1 to 3 NM after
midnight.
.FRI...NW winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to
4 ft. Rain likely, mainly in the morning with vsby 1 to 3 NM.
.FRI NIGHT...NW winds 25 to 30 kt with gusts up to 35 kt. Seas
4 to 6 ft.
.SAT...W winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to
5 ft.
.SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft.
.SUN THROUGH MON NIGHT...SW 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.

$$

ANZ231-290300-
Cape Cod Bay-
1001 AM EDT Thu Mar 28 2024

...GALE WATCH IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY
MORNING...

.THIS AFTERNOON...N winds 5 to 10 kt. Seas around 2 ft. Patchy
fog. Rain. Vsby 1 NM or less.
.TONIGHT...N winds 10 to 15 kt with gusts up to 20 kt, increasing
to 15 to 20 kt with gusts up to 30 kt after midnight. Seas 2 to
4 ft. Rain. Patchy fog in the evening. Vsby 1 NM or less,
increasing to 1 to 3 NM after midnight.
.FRI...NW winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to
5 ft. Rain. Vsby 1 to 3 NM in the morning.
.FRI NIGHT...NW winds 20 to 25 kt with gusts up to 35 kt. Seas
4 to 6 ft. A chance of rain in the evening.
.SAT...W winds 20 to 25 kt, diminishing to 10 to 15 kt in the
afternoon. Gusts up to 30 kt. Seas 3 to 5 ft.
.SAT NIGHT...W winds around 10 kt with gusts up to 20 kt. Seas
2 to 3 ft.
.SUN THROUGH MON...N winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft.
.MON NIGHT...S winds around 10 kt. Seas around 2 ft. A chance of
rain.

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.

$$

ANZ254-290300-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1001 AM EDT Thu Mar 28 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...GALE WATCH IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY
MORNING...

.THIS AFTERNOON...N winds 5 to 10 kt. Seas 4 to 6 ft. Patchy fog.
Rain. Vsby 1 NM or less.
.TONIGHT...N winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. Gusts up to 25 kt. Seas 5 to 7 ft. Rain. Patchy fog in
the evening. Vsby 1 NM or less, increasing to 1 to 3 NM after
midnight.
.FRI...NW winds 20 to 25 kt with gusts up to 35 kt. Seas 6 to
9 ft. Rain. Vsby 1 to 3 NM in the morning.
.FRI NIGHT...NW winds 20 to 25 kt with gusts up to 35 kt. Seas
6 to 9 ft. A chance of rain in the evening.
.SAT...W winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas 5 to 8 ft.
.SAT NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas
4 to 6 ft.
.SUN THROUGH MON NIGHT...S 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.

$$

ANZ255-290300-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1001 AM EDT Thu Mar 28 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...GALE WATCH IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY
MORNING...

.THIS AFTERNOON...NE winds 5 to 10 kt. Seas 3 to 5 ft. Patchy
fog. Rain. Vsby 1 NM or less.
.TONIGHT...N winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. Gusts up to 25 kt. Seas 4 to 6 ft. Rain. Patchy fog in
the evening. Vsby 1 NM or less, increasing to 1 to 3 NM after
midnight.
.FRI...NW winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to
7 ft. Rain likely, mainly in the morning with vsby 1 to 3 NM.
.FRI NIGHT...W winds 25 to 30 kt with gusts up to 35 kt. Seas
5 to 7 ft.
.SAT...W winds 25 to 30 kt, diminishing to 20 to 25 kt in the
afternoon. Seas 5 to 7 ft.
.SAT NIGHT...W winds 15 to 20 kt with gusts up to 30 kt,
diminishing to 10 to 15 kt with gusts up to 20 kt after midnight.
Seas 4 to 6 ft.
.SUN THROUGH MON...N winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft.
.MON NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
rain.

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.

$$

ANZ256-290300-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1001 AM EDT Thu Mar 28 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...GALE WATCH IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY
MORNING...

.THIS AFTERNOON...N winds 5 to 10 kt. Seas 3 to 4 ft. Patchy fog.
Rain. Vsby 1 NM or less.
.TONIGHT...N winds 10 to 15 kt with gusts up to 20 kt, increasing
to 15 to 20 kt with gusts up to 30 kt after midnight. Seas 4 to
6 ft. Rain. Patchy fog in the evening. Vsby 1 NM or less,
increasing to 1 to 3 NM after midnight.
.FRI...NW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to
6 ft. Rain likely, mainly in the morning with vsby 1 to 3 NM.
.FRI NIGHT...NW winds 25 to 30 kt with gusts up to 35 kt. Seas
5 to 7 ft.
.SAT...W winds 25 to 30 kt, diminishing to 20 to 25 kt in the
afternoon. Seas 4 to 6 ft.
.SAT NIGHT...W winds 15 to 20 kt, becoming NW 10 to 15 kt after
midnight. Gusts up to 25 kt. Seas 3 to 5 ft.
.SUN THROUGH MON...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft.
.MON NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
rain.

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.

$$

ANZ232-290300-
Nantucket Sound-
1001 AM EDT Thu Mar 28 2024

...GALE WATCH IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY
MORNING...

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

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.

$$

ANZ233-290300-
Vineyard Sound-
1001 AM EDT Thu Mar 28 2024

...GALE WATCH IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY
MORNING...

.THIS AFTERNOON...N winds 5 to 10 kt. Seas around 2 ft. Patchy
fog. Rain. Vsby 1 NM or less.
.TONIGHT...N winds 10 to 15 kt. Gusts up to 25 kt after midnight.
Seas 2 to 3 ft. Rain. Patchy fog in the evening. Vsby 1 NM or
less, increasing to 1 to 3 NM after midnight.
.FRI...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to
3 ft. Rain likely, mainly in the morning with vsby 1 to 3 NM.
.FRI NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Seas
2 to 4 ft.
.SAT AND SAT NIGHT...NW winds 25 to 30 kt. Seas 2 to 4 ft.
.SUN THROUGH MON...W winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft.
.MON NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. A chance
of rain.

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.

$$

ANZ234-290300-
Buzzards Bay-
1001 AM EDT Thu Mar 28 2024

...GALE WATCH IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY
MORNING...

.THIS AFTERNOON...N winds 5 to 10 kt. Seas 1 foot or less. Patchy
fog. Rain. Vsby 1 NM or less.
.TONIGHT...N winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 25 kt after midnight. Seas around 2 ft. Rain. Patchy
fog in the evening. Vsby 1 NM or less, increasing to 1 to 3 NM
after midnight.
.FRI...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to
3 ft. Rain likely, mainly in the morning with vsby 1 to 3 NM.
.FRI NIGHT...W winds 20 to 25 kt with gusts up to 30 kt. Seas
2 to 3 ft.
.SAT AND SAT NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt.
Seas 2 to 3 ft.
.SUN THROUGH MON...W winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft.
.MON NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. A chance
of rain.

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.

$$

ANZ235-290300-
Rhode Island Sound-
1001 AM EDT Thu Mar 28 2024

...GALE WATCH IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY
MORNING...

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

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.

$$

ANZ237-290300-
Block Island Sound-
1001 AM EDT Thu Mar 28 2024

...GALE WATCH IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY
MORNING...

.THIS AFTERNOON...N winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog.
Rain. Vsby 1 NM or less.
.TONIGHT...N winds 5 to 10 kt, becoming NW 10 to 15 kt with gusts
up to 25 kt after midnight. Seas 2 to 4 ft. Rain. Patchy fog in
the evening. Vsby 1 NM or less, increasing to 1 to 3 NM after
midnight.
.FRI...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to
4 ft. Rain likely in the morning.
.FRI NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 4 ft.
.SAT AND SAT NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft.
.SUN THROUGH MON...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft.
.MON NIGHT...SE winds around 10 kt. Seas around 2 ft. A chance of
rain.

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.

$$

ANZ230-290300-
Boston Harbor-
1001 AM EDT Thu Mar 28 2024

.THIS AFTERNOON...N winds around 5 kt. Waves 1 foot or less.
Patchy fog. Rain. Vsby 1 NM or less.
.TONIGHT...N winds 5 to 10 kt, becoming NW 10 to 15 kt with gusts
up to 25 kt after midnight. Waves 1 foot or less, then around
2 ft after midnight. Rain. Patchy fog in the evening. Vsby 1 NM
or less, increasing to 1 to 3 NM after midnight.
.FRI...NW winds 15 to 20 kt with gusts up to 30 kt. Waves around
2 ft. Rain likely, mainly in the morning.
.FRI NIGHT...NW winds 25 to 30 kt with gusts up to 35 kt. Waves
around 2 ft, except 3 to 5 ft at the outer harbor entrance.
.SAT AND SAT NIGHT...W winds 20 to 25 kt with gusts up to 30 kt.
Waves around 2 ft.
.SUN THROUGH MON...N winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft.
.MON NIGHT...S winds 5 to 10 kt. Waves 1 foot or less. A chance
of rain.

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.

$$

ANZ236-290300-
Narragansett Bay-
1001 AM EDT Thu Mar 28 2024

.THIS AFTERNOON...N winds 5 to 10 kt. Waves around 2 ft. Patchy
fog. Rain. Vsby 1 NM or less.
.TONIGHT...N winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 25 kt after midnight. Waves around 2 ft. Rain. Patchy
fog in the evening. Vsby 1 NM or less, increasing to 1 to 3 NM
after midnight.
.FRI...NW winds 15 to 20 kt with gusts up to 30 kt. Waves 2 to
3 ft. Rain likely in the morning.
.FRI NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Waves
2 to 3 ft.
.SAT AND SAT NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt.
Waves 2 to 3 ft.
.SUN THROUGH MON...NW winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft.
.MON NIGHT...SE winds 5 to 10 kt. Waves around 2 ft. A chance of
rain.

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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