999
FZUS51 KBOX 302306
CWFBOX

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

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

ANZ200-011200-
706 PM EDT Tue Apr 30 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
Weak low pres tracks across the south coastal waters tonight
followed by high pres Wed into Wed night. A frontal system moves
into New Eng and the waters Thu, then high pres over the Maritimes
builds S over the eastern waters Fri and Sat with NE flow
developing. The high pres moves to Nova Scotia Sun with moist
easterly flow continuing.

$$

ANZ250-011200-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
706 PM EDT Tue Apr 30 2024

.TONIGHT...E winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE
2 ft at 4 seconds and E 2 ft at 9 seconds. A chance of showers
this evening, then showers likely after midnight.
.WED...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft
at 4 seconds and E 2 ft at 10 seconds. Showers likely in the
morning.
.WED NIGHT...E winds around 5 kt, becoming S around 5 kt after
midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 5 seconds and
E 1 ft at 12 seconds.
.THU...S 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: SE
2 ft at 6 seconds and E 1 ft at 11 seconds. A chance of showers.
.THU NIGHT THROUGH FRI NIGHT...NE winds 10 to 15 kt. Seas 2 to
3 ft. Wave Detail: SE 2 ft at 4 seconds and E 1 ft at 10 seconds.
.SAT AND SAT NIGHT...NE winds around 10 kt, becoming E. Seas 2 to
3 ft. Wave Detail: NE 2 ft at 5 seconds and E 1 ft at 9 seconds.
.SUN AND SUN NIGHT...SE winds 10 to 15 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.

$$

ANZ251-011200-
Massachusetts Bay and Ipswich Bay-
706 PM EDT Tue Apr 30 2024

.TONIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 4 seconds and E 2 ft at 10 seconds. A chance of showers
this evening, then showers likely after midnight.
.WED...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft
at 4 seconds and E 2 ft at 10 seconds. A chance of showers in the
morning.
.WED NIGHT...E winds around 5 kt, becoming S after midnight. Seas
around 2 ft. Wave Detail: E 2 ft at 5 seconds and S 1 ft at
6 seconds.
.THU...S winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 5 seconds
and E 1 ft at 11 seconds. A chance of showers.
.THU NIGHT THROUGH FRI NIGHT...NE winds 10 to 15 kt. Seas around
2 ft. Wave Detail: SE 2 ft at 4 seconds and E 1 ft at 10 seconds.
.SAT AND SAT NIGHT...NE winds around 10 kt, becoming E. Seas
around 2 ft. Wave Detail: E 2 ft at 5 seconds and E 1 ft at
9 seconds.
.SUN AND SUN NIGHT...SE winds 10 to 15 kt, becoming S. 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.

$$

ANZ231-011200-
Cape Cod Bay-
706 PM EDT Tue Apr 30 2024

.TONIGHT...E winds 5 to 10 kt. Gusts up to 20 kt this evening.
Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and SE 1 ft at
4 seconds. A slight chance of showers after midnight.
.WED...NE winds around 10 kt. Seas around 2 ft. Wave Detail: E
2 ft at 9 seconds and NE 1 ft at 3 seconds. A chance of showers
in the morning.
.WED NIGHT...NE winds around 5 kt, becoming SE around 5 kt after
midnight. Seas around 2 ft. Wave Detail: E 1 ft at 3 seconds and
S 1 ft at 6 seconds.
.THU...S winds 5 to 10 kt. Seas around 2 ft in the morning, then
1 foot or less. Wave Detail: NE 1 ft at 4 seconds and S 1 ft at
6 seconds, becoming SE 1 ft at 3 seconds and E 1 ft at
10 seconds. A chance of showers.
.THU NIGHT THROUGH FRI NIGHT...NE winds 5 to 10 kt. Seas around
2 ft. Wave Detail: SE 1 ft at 3 seconds and E 1 ft at 10 seconds.
.SAT AND SAT 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 5 seconds.
.SUN AND SUN NIGHT...SE winds around 10 kt, becoming S. 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.

$$

ANZ254-011200-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
706 PM EDT Tue Apr 30 2024

.TONIGHT...E winds 10 to 15 kt. Gusts up to 20 kt this evening.
Seas 2 to 3 ft. Wave Detail: E 3 ft at 4 seconds and E 3 ft at
9 seconds. A slight chance of showers. Patchy fog after midnight
with vsby 1 NM or less.
.WED...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas around 3 ft. Wave Detail: NE 3 ft at 5 seconds and E 3 ft at
10 seconds. Patchy fog in the morning. A chance of showers in the
morning with vsby 1 NM or less.
.WED NIGHT...NE winds 5 to 10 kt, becoming E after midnight. Seas
2 to 3 ft. Wave Detail: E 3 ft at 5 seconds and S 2 ft at
7 seconds. Patchy fog after midnight with vsby 1 to 3 NM.
.THU...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft
at 5 seconds and S 2 ft at 6 seconds. A chance of showers. Patchy
fog in the morning with vsby 1 NM or less.
.THU NIGHT...SE winds 5 to 10 kt, becoming NE after midnight.
Seas 2 to 3 ft. Wave Detail: SE 2 ft at 6 seconds and E 1 ft at
10 seconds. A chance of showers in the evening.
.FRI AND FRI NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: NE 2 ft at 4 seconds and S 1 ft at 6 seconds.
.SAT AND SAT NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft.
.SUN AND SUN NIGHT...SE winds 10 to 15 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.

$$

ANZ255-011200-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
706 PM EDT Tue Apr 30 2024

.TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave
Detail: E 3 ft at 4 seconds and S 2 ft at 6 seconds. Patchy dense
fog. Vsby 1 NM or less.
.WED...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 2 to 3 ft. Wave Detail: NE 3 ft at 5 seconds and SW 3 ft at
6 seconds. Patchy fog in the morning. A chance of showers in the
morning with vsby 1 NM or less.
.WED NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE
3 ft at 5 seconds and SW 3 ft at 7 seconds.
.THU...S 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. A chance of showers in the
afternoon.
.THU NIGHT THROUGH FRI NIGHT...NE winds 10 to 15 kt with gusts up
to 20 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 4 seconds and S
2 ft at 6 seconds.
.SAT AND SAT NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: NE 3 ft at 5 seconds and S 1 ft at 5 seconds.
.SUN AND SUN NIGHT...SE winds 10 to 15 kt. Gusts up to 20 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.

$$

ANZ256-011200-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
706 PM EDT Tue Apr 30 2024

.TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt, becoming
NE 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 5 seconds and E 2 ft at 10 seconds. Patchy fog. Vsby 1 NM
or less.
.WED...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 6 seconds and NE 2 ft at 5 seconds. Patchy fog in the morning
with vsby 1 NM or less.
.WED NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 7 seconds and E 2 ft at 5 seconds.
.THU...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at
6 seconds and E 2 ft at 6 seconds.
.THU NIGHT THROUGH FRI NIGHT...NE winds 10 to 15 kt with gusts up
to 20 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 4 seconds and S
2 ft at 6 seconds.
.SAT AND SAT NIGHT...E winds 10 to 15 kt. Seas around 2 ft. Wave
Detail: NE 2 ft at 5 seconds and S 1 ft at 5 seconds.
.SUN AND SUN NIGHT...SE winds 10 to 15 kt with gusts up to 20 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.

$$

ANZ232-011200-
Nantucket Sound-
706 PM EDT Tue Apr 30 2024

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

$$

ANZ233-011200-
Vineyard Sound-
706 PM EDT Tue Apr 30 2024

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

$$

ANZ234-011200-
Buzzards Bay-
706 PM EDT Tue Apr 30 2024

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

$$

ANZ235-011200-
Rhode Island Sound-
706 PM EDT Tue Apr 30 2024

.TONIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt this evening.
Seas around 2 ft. Wave Detail: SE 2 ft at 5 seconds and E 1 ft at
10 seconds. Patchy fog. A slight chance of showers after
midnight. Vsby 1 NM or less.
.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. Patchy fog in the
morning. A chance of showers in the morning with vsby 1 to 3 NM.
.WED NIGHT...E winds 5 to 10 kt, becoming SE after midnight. Seas
around 2 ft. Wave Detail: E 2 ft at 5 seconds and S 2 ft at
7 seconds.
.THU...S winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 6 seconds
and E 1 ft at 11 seconds.
.THU NIGHT THROUGH FRI NIGHT...NE winds 10 to 15 kt with gusts up
to 20 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 3 seconds and
S 2 ft at 6 seconds.
.SAT AND SAT NIGHT...E winds 10 to 15 kt. Seas 1 foot or less,
then around 2 ft. Wave Detail: NE 1 ft at 4 seconds and S 1 ft at
5 seconds, becoming E 2 ft at 4 seconds and E 1 ft at 9 seconds.
.SUN AND SUN NIGHT...SE winds 10 to 15 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.

$$

ANZ237-011200-
Block Island Sound-
706 PM EDT Tue Apr 30 2024

.TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt, becoming
NE 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 5 seconds and E 1 ft at 10 seconds. Patchy fog. A chance
of showers after midnight. Vsby 1 NM or less.
.WED...NE winds 5 to 10 kt, becoming E in the afternoon. Seas
around 2 ft. Wave Detail: E 2 ft at 4 seconds and S 2 ft at
6 seconds. Patchy fog in the morning. A chance of showers in the
morning with vsby 1 to 3 NM.
.WED NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 6 seconds and E 1 ft at 10 seconds.
.THU...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft
at 6 seconds and E 1 ft at 10 seconds.
.THU NIGHT...W winds 5 to 10 kt, becoming NE after midnight. Seas
around 2 ft. Wave Detail: SE 2 ft at 6 seconds and E 1 ft at
11 seconds.
.FRI AND FRI NIGHT...E winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: NE 2 ft at 3 seconds and S 2 ft at
6 seconds.
.SAT...E winds around 10 kt. Seas around 2 ft.
.SAT NIGHT THROUGH SUN NIGHT...SE 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.

$$

ANZ230-011200-
Boston Harbor-
706 PM EDT Tue Apr 30 2024

.TONIGHT...E winds 5 to 10 kt. Waves around 2 ft this evening,
then 1 foot or less. A chance of showers this evening, then
showers likely after midnight.
.WED...NE winds 5 to 10 kt. Waves 1 foot or less. A chance of
showers in the morning.
.WED NIGHT...E winds around 5 kt, becoming S after midnight.
Waves 1 foot or less.
.THU...S 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. A chance of showers.
.THU NIGHT THROUGH FRI NIGHT...NE winds 10 to 15 kt. Waves around
2 ft.
.SAT AND SAT NIGHT...E winds 5 to 10 kt. Waves around 2 ft.
.SUN AND SUN NIGHT...SE winds 5 to 10 kt, becoming S. 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.

$$

ANZ236-011200-
Narragansett Bay-
706 PM EDT Tue Apr 30 2024

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

$$

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