894
FZUS51 KBOX 300504
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
104 AM EDT Tue Apr 30 2024

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

ANZ200-301800-
104 AM EDT Tue Apr 30 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
Low chance for an isolated shower with a rumble of thunder this
afternoon in the southern waters.  otherwise dry weather with light
ENE winds.  Decaying low pressure system brings weak showers to the
waters Tuesday night into Wednesday.  Winds remain NE. Looking dry
Thursday with more light rain chances Friday into the Weekend.

$$

ANZ250-301800-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
104 AM EDT Tue Apr 30 2024

.REST OF TONIGHT...N winds 5 to 10 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds and NE 2 ft at
4 seconds.
.TUE...E winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas
2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds and E 2 ft at
10 seconds.
.TUE NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 5 seconds and E 2 ft at 10 seconds. A chance of showers.
.WED...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft
at 4 seconds and E 2 ft at 10 seconds. A chance of showers.
.WED NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 5 seconds and E 1 ft at 12 seconds.
.THU...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
1 ft at 5 seconds and E 1 ft at 11 seconds.
.THU NIGHT...SE winds around 10 kt, becoming NE after midnight.
Seas around 2 ft. A chance of showers in the evening.
.FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft.
.FRI NIGHT THROUGH SAT NIGHT...S winds around 10 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.

$$

ANZ251-301800-
Massachusetts Bay and Ipswich Bay-
104 AM EDT Tue Apr 30 2024

.REST OF TONIGHT...NE winds 5 to 10 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: E 2 ft at 11 seconds and NE 1 ft
at 4 seconds.
.TUE...E winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas
around 2 ft. Wave Detail: NE 2 ft at 4 seconds and E 2 ft at
10 seconds.
.TUE NIGHT...E winds around 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 5 seconds and E 2 ft at 10 seconds. A chance of
showers.
.WED...E winds around 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 5 seconds and E 1 ft at 10 seconds. A chance of showers.
.WED NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E
2 ft at 4 seconds and S 1 ft at 5 seconds.
.THU...SE winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft
in the afternoon. Wave Detail: E 1 ft at 4 seconds and S 1 ft at
5 seconds, becoming SE 2 ft at 4 seconds and E 1 ft at
11 seconds.
.THU NIGHT...SE winds around 10 kt, becoming NE after midnight.
Seas around 2 ft. A chance of showers in the evening.
.FRI THROUGH SAT NIGHT...S winds 10 to 15 kt with gusts up to
20 kt. Seas 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.

$$

ANZ231-301800-
Cape Cod Bay-
104 AM EDT Tue Apr 30 2024

.REST OF TONIGHT...N winds around 5 kt. Seas around 2 ft. Wave
Detail: E 2 ft at 11 seconds and N 1 ft at 4 seconds.
.TUE...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft
at 11 seconds and NE 1 ft at 4 seconds.
.TUE NIGHT...E winds around 10 kt. Seas around 2 ft. Wave Detail:
E 2 ft at 9 seconds and SE 1 ft at 4 seconds. A chance of
showers.
.WED...NE winds 5 to 10 kt. Seas around 2 ft in the morning, then
1 foot or less. Wave Detail: SE 1 ft at 4 seconds and E 1 ft at
10 seconds, becoming E 1 ft at 3 seconds and S 1 ft at 5 seconds.
A chance of showers.
.WED NIGHT...NE winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: E 1 ft at 3 seconds and S 1 ft at 4 seconds.
.THU AND THU NIGHT...NE winds 5 to 10 kt. Seas 1 foot or less.
Wave Detail: NE 1 ft at 3 seconds and S 1 ft at 4 seconds.
.FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft.
.FRI NIGHT THROUGH SAT NIGHT...SE winds around 10 kt with gusts
up to 20 kt. Seas 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.

$$

ANZ254-301800-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
104 AM EDT Tue Apr 30 2024

.REST OF TONIGHT...N winds 5 to 10 kt with gusts up to 20 kt.
Seas 3 to 4 ft. Wave Detail: E 3 ft at 10 seconds and N 2 ft at
4 seconds.
.TUE...E winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas
2 to 4 ft. Wave Detail: E 3 ft at 10 seconds and NE 1 ft at
4 seconds.
.TUE NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE
3 ft at 9 seconds and NE 2 ft at 4 seconds. A chance of showers
after midnight.
.WED...E winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 2 to 3 ft. Wave Detail: NE 2 ft at 6 seconds and E 2 ft at
10 seconds. A chance of showers.
.WED NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 5 seconds and S 2 ft at 6 seconds.
.THU AND THU NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: E 2 ft at 4 seconds and S 2 ft at 6 seconds.
.FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft.
.FRI NIGHT THROUGH SAT NIGHT...SE winds 10 to 15 kt with gusts up
to 20 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.

$$

ANZ255-301800-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
104 AM EDT Tue Apr 30 2024

.REST OF TONIGHT...SE winds around 5 kt. Seas 2 to 4 ft. Wave
Detail: E 3 ft at 11 seconds and SW 2 ft at 6 seconds.
.TUE...E winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 2 to 4 ft. Wave Detail: E 3 ft at 10 seconds and
E 2 ft at 3 seconds.
.TUE NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: SE 2 ft at 4 seconds and E 2 ft at
9 seconds.
.WED...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and E 2 ft at
4 seconds. A chance of showers.
.WED NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 5 seconds
and SW 2 ft at 6 seconds.
.THU AND THU NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: E 2 ft at 5 seconds and S 2 ft at 6 seconds.
.FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft.
.FRI NIGHT THROUGH SAT NIGHT...E winds 10 to 15 kt with gusts up
to 20 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.

$$

ANZ256-301800-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
104 AM EDT Tue Apr 30 2024

.REST OF TONIGHT...SE winds around 5 kt. Seas 2 to 3 ft. Wave
Detail: E 3 ft at 12 seconds and S 2 ft at 6 seconds. A chance of
showers.
.TUE...E winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: E 3 ft
at 11 seconds and E 2 ft at 4 seconds.
.TUE NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: SE 2 ft at 5 seconds and E 2 ft at
10 seconds.
.WED...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 2 to 3 ft. Wave Detail: E 2 ft at 4 seconds and S 2 ft at
6 seconds. A chance of showers.
.WED NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Seas 2 to 3 ft. Wave Detail: E 2 ft at 4 seconds
and S 2 ft at 6 seconds.
.THU AND THU NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: E 2 ft at 5 seconds and S 2 ft at 6 seconds.
.FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft.
.FRI NIGHT THROUGH SAT NIGHT...SE winds 10 to 15 kt with gusts up
to 20 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.

$$

ANZ232-301800-
Nantucket Sound-
104 AM EDT Tue Apr 30 2024

.REST OF TONIGHT...NW winds around 5 kt. Seas around 2 ft. Wave
Detail: E 2 ft at 12 seconds and E 1 ft at 3 seconds.
.TUE...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft
at 11 seconds and E 1 ft at 3 seconds.
.TUE NIGHT...E winds 10 to 15 kt. Seas around 2 ft. Wave Detail:
SE 1 ft at 4 seconds and E 1 ft at 10 seconds. A chance of
showers.
.WED...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas around 2 ft. Wave Detail: SE 2 ft at 4 seconds and E 1 ft at
9 seconds. A chance of showers.
.WED NIGHT...NE winds 5 to 10 kt. Seas around 2 ft in the
evening, then 1 foot or less. Wave Detail: E 2 ft at 4 seconds
and S 1 ft at 6 seconds, becoming E 1 ft at 5 seconds and S 1 ft
at 6 seconds.
.THU AND THU NIGHT...N winds 5 to 10 kt. Seas 1 foot or less.
Wave Detail: E 1 ft at 5 seconds and S 1 ft at 6 seconds.
.FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft.
.FRI NIGHT THROUGH SAT NIGHT...SE winds 10 to 15 kt with gusts up
to 20 kt. Seas 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.

$$

ANZ233-301800-
Vineyard Sound-
104 AM EDT Tue Apr 30 2024

.REST OF TONIGHT...SE winds around 5 kt. Seas around 2 ft. Wave
Detail: NE 1 ft at 3 seconds and SW 1 ft at 5 seconds. A slight
chance of showers.
.TUE...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 1 ft
at 3 seconds and SW 1 ft at 5 seconds.
.TUE NIGHT...E winds around 10 kt. Seas around 2 ft. Wave Detail:
E 1 ft at 3 seconds and S 1 ft at 5 seconds. A chance of showers.
.WED...NE winds 10 to 15 kt. Seas around 2 ft in the morning,
then 1 foot or less. Wave Detail: NE 1 ft at 3 seconds and S 1 ft
at 6 seconds, becoming NE 1 ft at 3 seconds and SW 1 ft at
6 seconds. A chance of showers.
.WED NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Seas around 2 ft in the evening, then 1 foot or
less. Wave Detail: NE 1 ft at 3 seconds and SW 1 ft at 6 seconds.
.THU AND THU NIGHT...NE winds 5 to 10 kt. Seas 1 foot or less.
Wave Detail: E 1 ft at 4 seconds and SW 1 ft at 6 seconds.
.FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 1 foot
or less.
.FRI NIGHT THROUGH SAT NIGHT...SE winds 10 to 15 kt with gusts up
to 20 kt. Seas 1 foot or less. 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.

$$

ANZ234-301800-
Buzzards Bay-
104 AM EDT Tue Apr 30 2024

.REST OF TONIGHT...S winds around 5 kt. Seas 1 foot or less. Wave
Detail: NE 1 ft at 3 seconds and SW 1 ft at 5 seconds. A slight
chance of showers.
.TUE...E winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft
in the afternoon. Wave Detail: NE 1 ft at 3 seconds and SW 1 ft
at 5 seconds, becoming E 1 ft at 2 seconds and SW 1 ft at
5 seconds.
.TUE NIGHT...E winds 5 to 10 kt. Seas around 2 ft in the evening,
then 1 foot or less. Wave Detail: E 1 ft at 2 seconds and S 1 ft
at 5 seconds. A chance of showers.
.WED...NE winds 10 to 15 kt. Seas 1 foot or less. Wave Detail: NE
1 ft at 2 seconds and S 1 ft at 6 seconds. A chance of showers.
.WED NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Seas 1 foot or less. Wave Detail: NE 1 ft at
3 seconds and SW 1 ft at 6 seconds.
.THU AND THU NIGHT...N winds 5 to 10 kt. Seas 1 foot or less.
Wave Detail: E 1 ft at 3 seconds and SW 1 ft at 6 seconds.
.FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 1 foot
or less.
.FRI NIGHT THROUGH SAT NIGHT...SE winds around 10 kt with gusts
up to 20 kt. Seas 1 foot or less. 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.

$$

ANZ235-301800-
Rhode Island Sound-
104 AM EDT Tue Apr 30 2024

.REST OF TONIGHT...SE winds around 5 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 6 seconds and E 1 ft at 3 seconds. A chance of
showers.
.TUE...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft
at 3 seconds and S 2 ft at 6 seconds.
.TUE NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft. Wave Detail: SE 2 ft at 5 seconds and
SE 1 ft at 11 seconds. A chance of showers.
.WED...NE winds 10 to 15 kt. Seas around 2 ft. Wave Detail: NE
2 ft at 4 seconds and S 2 ft at 6 seconds. A chance of showers.
.WED NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Seas around 2 ft. Wave Detail: NE 2 ft at
4 seconds and S 2 ft at 6 seconds.
.THU AND THU NIGHT...N winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 6 seconds and E 1 ft at 5 seconds.
.FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft.
.FRI NIGHT THROUGH SAT NIGHT...SE winds 10 to 15 kt with gusts up
to 20 kt. Seas 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.

$$

ANZ237-301800-
Block Island Sound-
104 AM EDT Tue Apr 30 2024

.REST OF TONIGHT...SE winds around 5 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 6 seconds and E 2 ft at 12 seconds. A chance of
showers.
.TUE...E winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: E
2 ft at 3 seconds and S 2 ft at 6 seconds.
.TUE NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft. Wave Detail: SE 2 ft at 5 seconds and
E 1 ft at 11 seconds. A chance of showers after midnight.
.WED...NE winds around 10 kt. Gusts up to 20 kt in the morning.
Seas around 2 ft. Wave Detail: SE 2 ft at 5 seconds and E 1 ft at
10 seconds. A chance of showers.
.WED NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 4 seconds and S 2 ft at 6 seconds.
.THU AND THU NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 5 seconds and E 1 ft at 11 seconds.
.FRI...NE winds around 10 kt with gusts up to 20 kt. Seas around
2 ft.
.FRI NIGHT THROUGH SAT NIGHT...SE winds 10 to 15 kt with gusts up
to 20 kt. Seas 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.

$$

ANZ230-301800-
Boston Harbor-
104 AM EDT Tue Apr 30 2024

.REST OF TONIGHT...E winds 5 to 10 kt. Waves around 2 ft.
.TUE...E winds around 10 kt. Waves around 2 ft in the morning,
then 1 foot or less.
.TUE NIGHT...E winds around 10 kt. Waves 1 foot or less. A chance
of showers.
.WED...E winds 10 to 15 kt. Waves 1 foot or less, then around
2 ft in the afternoon. A chance of showers.
.WED NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Waves 1 foot or less.
.THU...SE winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Waves 1 foot or less, then around 2 ft in the
afternoon.
.THU NIGHT...SE winds 10 to 15 kt, becoming N 5 to 10 kt after
midnight. Waves around 2 ft in the evening, then 1 foot or less.
A chance of showers in the evening.
.FRI THROUGH SAT NIGHT...S winds 5 to 10 kt with gusts up to
20 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.

$$

ANZ236-301800-
Narragansett Bay-
104 AM EDT Tue Apr 30 2024

.REST OF TONIGHT...SE winds around 5 kt. Waves 1 foot or less. A
chance of showers.
.TUE...E winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft
in the afternoon.
.TUE NIGHT...E winds 5 to 10 kt. Waves around 2 ft. A chance of
showers.
.WED...NE winds 10 to 15 kt. Waves around 2 ft. A chance of
showers.
.WED NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Waves around 2 ft.
.THU AND THU NIGHT...N winds 5 to 10 kt. Waves around 2 ft.
.FRI...NE winds around 10 kt with gusts up to 20 kt. Waves 1 foot
or less.
.FRI NIGHT THROUGH SAT NIGHT...SE winds 5 to 10 kt with gusts up
to 20 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.

$$

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