764
FZUS51 KBOX 301404
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1004 AM EDT Tue Apr 30 2024

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

ANZ200-010300-
1004 AM EDT Tue Apr 30 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
A few widely isolated showers and thunder this morning and drier
this afternoon. A decaying low pressure system brings light rain to
the waters overnight and into Wednesday. Another chance for light
rain on Thursday, primarily for the northern waters, then drier on
Friday. Looking head, unsettled conditions persist into the upcoming
weekend.

$$

ANZ250-010300-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1004 AM EDT Tue Apr 30 2024

.THIS AFTERNOON...E winds around 10 kt. Seas around 3 ft. Wave
Detail: NE 2 ft at 3 seconds and E 2 ft at 10 seconds.
.TONIGHT...E winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE
2 ft at 5 seconds and E 2 ft at 10 seconds. A chance of showers.
.WED...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft
at 5 seconds and E 2 ft at 10 seconds. A chance of rain in the
morning.
.WED NIGHT...E winds 5 to 10 kt, becoming S after midnight. Seas
around 2 ft. Wave Detail: SE 2 ft at 5 seconds and E 1 ft at
12 seconds. Patchy fog after midnight with vsby 1 to 3 NM.
.THU...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft
at 5 seconds and E 1 ft at 11 seconds. A chance of showers in the
afternoon.
.THU NIGHT...SE winds around 10 kt, becoming N after midnight.
Seas 2 to 3 ft. Wave Detail: SE 2 ft at 4 seconds and E 1 ft at
10 seconds. A chance of showers in the evening.
.FRI THROUGH SAT NIGHT...SE winds around 10 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.

$$

ANZ251-010300-
Massachusetts Bay and Ipswich Bay-
1004 AM EDT Tue Apr 30 2024

.THIS AFTERNOON...E winds around 10 kt. Seas 2 to 3 ft. Wave
Detail: NE 2 ft at 4 seconds and E 2 ft at 10 seconds.
.TONIGHT...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.
Patchy fog after midnight.
.WED...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 5 seconds and E 1 ft at 10 seconds. Patchy fog in the
morning. A chance of rain in the morning.
.WED NIGHT...E winds 5 to 10 kt, becoming S after midnight. Seas
around 2 ft. Wave Detail: E 2 ft at 5 seconds and S 1 ft at
5 seconds. Patchy fog after midnight with vsby 1 to 3 NM.
.THU...S winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft
in the afternoon. Wave Detail: SE 1 ft at 5 seconds and E 1 ft at
11 seconds, becoming SE 2 ft at 4 seconds and E 1 ft at
11 seconds. A chance of showers in the afternoon.
.THU NIGHT...SE winds around 10 kt, becoming N after midnight.
Seas around 2 ft. Wave Detail: SE 2 ft at 4 seconds and E 1 ft at
10 seconds. A chance of showers in the evening.
.FRI THROUGH SAT NIGHT...SE winds 10 to 15 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.

$$

ANZ231-010300-
Cape Cod Bay-
1004 AM EDT Tue Apr 30 2024

.THIS AFTERNOON...E winds around 10 kt. Seas around 2 ft. Wave
Detail: E 2 ft at 10 seconds and E 1 ft at 3 seconds.
.TONIGHT...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: E 2 ft at 10 seconds and NE 1 ft at
3 seconds, becoming NE 1 ft at 3 seconds and S 1 ft at 4 seconds.
Patchy fog in the morning. A chance of rain in the morning.
.WED NIGHT...E winds around 5 kt, becoming SE around 5 kt after
midnight. Seas 1 foot or less. Wave Detail: E 1 ft at 3 seconds
and S 1 ft at 4 seconds. Patchy fog. Vsby 1 to 3 NM.
.THU...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S
1 ft at 4 seconds and E 1 ft at 4 seconds. Patchy fog in the
morning. A chance of showers in the afternoon. Vsby 1 to 3 NM in
the morning.
.THU NIGHT...SW winds around 10 kt, becoming N after midnight.
Seas 1 foot or less. Wave Detail: SW 1 ft at 2 seconds and E 1 ft
at 4 seconds. A chance of showers in the evening.
.FRI THROUGH SAT NIGHT...E winds 5 to 10 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.

$$

ANZ254-010300-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1004 AM EDT Tue Apr 30 2024

.THIS AFTERNOON...E winds 10 to 15 kt. Gusts up to 20 kt. Seas
around 3 ft. Wave Detail: E 3 ft at 10 seconds and NE 2 ft at
4 seconds.
.TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas
around 3 ft. Wave Detail: E 3 ft at 9 seconds and E 2 ft at
4 seconds. A chance of showers. Patchy fog after midnight with
vsby 1 to 3 NM.
.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 E 3 ft at
10 seconds. A chance of rain. Patchy fog 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 2 ft at 5 seconds and S 2 ft at
7 seconds. Patchy fog. 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. Patchy fog in the morning.
A chance of showers in the afternoon. Vsby 1 to 3 NM in the
morning.
.THU NIGHT...SW winds around 10 kt, becoming N after midnight.
Seas 2 to 3 ft. Wave Detail: S 2 ft at 6 seconds and E 1 ft at
5 seconds. A chance of showers in the evening.
.FRI THROUGH SAT NIGHT...E winds 10 to 15 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.

$$

ANZ255-010300-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1004 AM EDT Tue Apr 30 2024

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

$$

ANZ256-010300-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1004 AM EDT Tue Apr 30 2024

.THIS AFTERNOON...E winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Wave Detail: E 3 ft at 4 seconds and S 2 ft at
6 seconds. Patchy fog with vsby 1 NM or less.
.TONIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the evening.
Seas 2 to 3 ft. Wave Detail: SE 3 ft at 5 seconds and E 2 ft at
10 seconds. Patchy fog. A chance of showers. 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 4 seconds and S 3 ft at
6 seconds. Patchy fog in the morning. A chance of rain 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. Patchy fog after
midnight with vsby 1 to 3 NM.
.THU...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at
6 seconds and S 2 ft at 6 seconds.
.THU NIGHT...SW winds around 10 kt, becoming N with gusts up to
20 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 2 ft at
6 seconds and E 1 ft at 5 seconds.
.FRI THROUGH SAT NIGHT...E winds 10 to 15 kt with gusts up to
20 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.

$$

ANZ232-010300-
Nantucket Sound-
1004 AM EDT Tue Apr 30 2024

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

$$

ANZ233-010300-
Vineyard Sound-
1004 AM EDT Tue Apr 30 2024

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

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.

$$

ANZ234-010300-
Buzzards Bay-
1004 AM EDT Tue Apr 30 2024

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

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.

$$

ANZ235-010300-
Rhode Island Sound-
1004 AM EDT Tue Apr 30 2024

.THIS AFTERNOON...E winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: E 2 ft at 3 seconds and S 2 ft at
6 seconds.
.TONIGHT...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
10 seconds. Patchy fog. A chance of showers in the evening. 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 rain in the morning with vsby 1 NM or less.
.WED NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 7 seconds and E 1 ft at 4 seconds. Patchy fog after
midnight with vsby 1 to 3 NM.
.THU...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft
at 6 seconds and E 1 ft at 12 seconds.
.THU NIGHT...SW winds around 10 kt, becoming N with gusts up to
20 kt after midnight. Seas around 2 ft. Wave Detail: S 2 ft at
6 seconds and SE 1 ft at 12 seconds.
.FRI THROUGH SAT NIGHT...E 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.

$$

ANZ237-010300-
Block Island Sound-
1004 AM EDT Tue Apr 30 2024

.THIS AFTERNOON...E winds 10 to 15 kt with gusts up to 25 kt.
Seas around 2 ft. Wave Detail: SE 2 ft at 5 seconds and E 1 ft at
12 seconds.
.TONIGHT...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
10 seconds. Patchy fog. A chance of showers. Vsby 1 NM or less.
.WED...NE winds 10 to 15 kt, becoming E in the afternoon. 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 rain in the
morning with vsby 1 NM or less.
.WED NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
2 ft at 6 seconds and E 1 ft at 11 seconds. Patchy fog after
midnight with vsby 1 to 3 NM.
.THU...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft
at 6 seconds and E 1 ft at 11 seconds.
.THU NIGHT...SW winds around 10 kt, becoming N after midnight.
Seas around 2 ft. Wave Detail: SW 2 ft at 6 seconds and E 1 ft at
6 seconds.
.FRI THROUGH SAT NIGHT...E winds 5 to 10 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.

$$

ANZ230-010300-
Boston Harbor-
1004 AM EDT Tue Apr 30 2024

.THIS AFTERNOON...E winds around 10 kt. Waves around 2 ft.
.TONIGHT...E winds around 10 kt. Waves 1 foot or less. A chance
of showers. Patchy fog after midnight.
.WED...NE winds 5 to 10 kt. Waves around 2 ft. A chance of rain
in the morning.
.WED NIGHT...E winds 5 to 10 kt, becoming S after midnight. Waves
around 2 ft in the evening, then 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. A chance of showers in the
afternoon.
.THU NIGHT...W winds around 10 kt, becoming N after midnight.
Waves 1 foot or less, then around 2 ft after midnight. A chance
of showers in the evening.
.FRI THROUGH SAT NIGHT...SE winds 10 to 15 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.

$$

ANZ236-010300-
Narragansett Bay-
1004 AM EDT Tue Apr 30 2024

.THIS AFTERNOON...E winds 5 to 10 kt, increasing to 10 to 15 kt
with gusts up to 20 kt. Waves around 2 ft.
.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. A chance of
showers. Patchy fog after midnight with vsby 1 to 3 NM.
.WED...NE winds 5 to 10 kt. Waves around 2 ft. Patchy fog in the
morning. A chance of rain in the morning with vsby 1 to 3 NM.
.WED NIGHT...SE winds 5 to 10 kt. Waves around 2 ft. Patchy fog
after midnight with vsby 1 to 3 NM.
.THU...S winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Waves around 2 ft.
.THU NIGHT...SW winds around 10 kt, becoming N after midnight.
Waves around 2 ft.
.FRI THROUGH SAT NIGHT...E winds 5 to 10 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.

$$

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