Coastal Waters Forecast
Issued by NWS Boston, MA

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742
FZUS51 KBOX 221703
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
103 PM EDT Wed May 22 2024

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

ANZ200-230600-
103 PM EDT Wed May 22 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pres builds southeast of the waters today. A cold front slides
into southern New England late on Thu and across the waters by
early/mid Fri. The front will bring showers and thunderstorms. Hit
or miss showers and storms possible through the weekend with a front
nearby. A frontal system lifts toward the waters early next week.

$$

ANZ250-230600-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
103 PM EDT Wed May 22 2024

.THIS AFTERNOON...S winds 15 to 20 kt. Seas 2 to 4 ft. Wave
Detail: S 3 ft at 4 seconds and E 2 ft at 8 seconds.
.TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: S 3 ft at 4 seconds and E 2 ft at 8 seconds.
.THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 8 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E
1 foot at 8 seconds.
.FRI...SW winds 5 to 10 kt, becoming S in the afternoon. Seas
around 2 ft. Wave Detail: W 2 ft at 4 seconds and E 1 foot at
8 seconds.
.FRI NIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after
midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and
SE 1 foot at 9 seconds.
.SAT THROUGH SUN NIGHT...S winds 5 to 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.

$$

ANZ251-230600-
Massachusetts Bay and Ipswich Bay-
103 PM EDT Wed May 22 2024

.THIS AFTERNOON...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at
8 seconds.
.TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 8 seconds.
.THU...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 3 seconds and E 2 ft at 7 seconds. A chance of showers in
the afternoon.
.THU NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SW 2 ft at 3 seconds and E 1 foot at 7 seconds.
.FRI...W winds 5 to 10 kt, becoming S in the afternoon. Seas
1 foot or less. Wave Detail: W 1 foot at 3 seconds and E 1 foot
at 7 seconds.
.FRI NIGHT...SW winds around 10 kt, becoming W after midnight.
Seas 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and E
1 foot at 8 seconds.
.SAT THROUGH SUN NIGHT...S 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.

$$

ANZ231-230600-
Cape Cod Bay-
103 PM EDT Wed May 22 2024

.THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot
at 8 seconds.
.TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at
8 seconds.
.THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. Wave Detail: SW 1 foot at 3 seconds and E 1 foot at
8 seconds.
.THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas 1 foot or less.
Wave Detail: SW 1 foot at 3 seconds and E 1 foot at 8 seconds. A
chance of showers.
.FRI...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW
1 foot at 2 seconds and E 1 foot at 8 seconds. A chance of
showers in the morning.
.FRI NIGHT...SW winds around 10 kt, becoming W after midnight.
Seas 1 foot or less. Wave Detail: SW 1 foot at 2 seconds and SE
1 foot at 8 seconds.
.SAT THROUGH SUN NIGHT...S winds 5 to 10 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.

$$

ANZ254-230600-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
103 PM EDT Wed May 22 2024

.THIS AFTERNOON...SW winds around 15 kt with gusts up to 20 kt.
Seas around 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at
8 seconds.
.TONIGHT...SW winds around 15 kt with gusts up to 20 kt. Seas
around 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at
8 seconds.
.THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around
3 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 8 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E
1 foot at 8 seconds. A chance of showers. Vsby 1 NM or less.
.FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft
at 5 seconds and E 1 foot at 8 seconds. A chance of showers in
the morning with vsby 1 to 3 NM.
.FRI NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW
2 ft at 5 seconds and SE 1 foot at 9 seconds.
.SAT THROUGH SUN NIGHT...S 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.

$$

ANZ255-230600-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
103 PM EDT Wed May 22 2024

.THIS AFTERNOON...SW winds around 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at
8 seconds.
.TONIGHT...SW winds around 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at
8 seconds.
.THU...SW winds around 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SW 3 ft at 5 seconds and E 2 ft at 8 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and E
1 foot at 8 seconds. A chance of showers. Vsby 1 NM or less.
.FRI...SW winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SW
3 ft at 5 seconds and E 1 foot at 8 seconds. A chance of showers
in the morning with vsby 1 to 3 NM.
.FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW
2 ft at 5 seconds and SE 1 foot at 9 seconds.
.SAT THROUGH SUN NIGHT...SE winds 5 to 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.

$$

ANZ256-230600-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
103 PM EDT Wed May 22 2024

.THIS AFTERNOON...SW winds around 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at
8 seconds.
.TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 8 seconds.
.THU...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and E 2 ft at
8 seconds.
.THU NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds
and E 1 foot at 8 seconds. A chance of showers. Vsby 1 to 3 NM,
decreasing to 1 NM or less after midnight.
.FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft
at 5 seconds and E 1 foot at 8 seconds. A chance of showers in
the morning.
.FRI NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW
2 ft at 5 seconds and SE 1 foot at 8 seconds.
.SAT THROUGH SUN NIGHT...SE winds 5 to 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.

$$

ANZ232-230600-
Nantucket Sound-
103 PM EDT Wed May 22 2024

.THIS AFTERNOON...SW winds around 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot
at 8 seconds.
.TONIGHT...SW winds around 15 kt with gusts up to 20 kt. Seas
around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot at
8 seconds.
.THU...SW winds around 15 kt with gusts up to 20 kt. Seas around
2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot at
7 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and
E 1 foot at 7 seconds. A chance of showers. Vsby 1 NM or less
after midnight.
.FRI...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW
1 foot at 4 seconds and E 1 foot at 7 seconds. A chance of
showers in the morning.
.FRI NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: SW 1 foot at 3 seconds and SE 1 foot at 8 seconds.
.SAT THROUGH SUN NIGHT...S winds 5 to 10 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.

$$

ANZ233-230600-
Vineyard Sound-
103 PM EDT Wed May 22 2024

.THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot
at 9 seconds.
.TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot at
9 seconds.
.THU...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and SE 1 foot
at 8 seconds.
.THU NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at
5 seconds and SE 1 foot at 8 seconds. A chance of showers. Vsby
1 to 3 NM.
.FRI...SW winds around 5 kt, increasing to around 10 kt in the
afternoon. Seas 1 foot or less. Wave Detail: SW 1 foot at
5 seconds and SE 1 foot at 8 seconds. A chance of showers in the
morning.
.FRI NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SW 2 ft at 5 seconds and SE 1 foot at 8 seconds.
.SAT THROUGH SUN NIGHT...S winds 5 to 10 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.

$$

ANZ234-230600-
Buzzards Bay-
103 PM EDT Wed May 22 2024

.THIS AFTERNOON...SW winds around 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot
at 9 seconds.
.TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot at
9 seconds.
.THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at
8 seconds.
.THU NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at
5 seconds and SE 1 foot at 8 seconds. A chance of showers. Vsby
1 to 3 NM.
.FRI...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW
1 foot at 5 seconds and SE 1 foot at 8 seconds. A chance of
showers in the morning.
.FRI NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: SW 1 foot at 5 seconds and SE 1 foot at 8 seconds.
.SAT THROUGH SUN NIGHT...S winds 5 to 10 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.

$$

ANZ235-230600-
Rhode Island Sound-
103 PM EDT Wed May 22 2024

.THIS AFTERNOON...SW winds around 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot
at 9 seconds.
.TONIGHT...SW winds around 15 kt with gusts up to 20 kt. Seas
around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at
9 seconds.
.THU...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and SE 1 foot
at 8 seconds.
.THU NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at
5 seconds and SE 1 foot at 8 seconds. A chance of showers. Vsby
1 to 3 NM.
.FRI...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 5 seconds and SE 1 foot at 8 seconds. A chance of showers
in the morning.
.FRI NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SW 2 ft at 5 seconds and SE 1 foot at 8 seconds.
.SAT THROUGH SUN NIGHT...S 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.

$$

ANZ237-230600-
Block Island Sound-
103 PM EDT Wed May 22 2024

.THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft
at 9 seconds.
.TONIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and
SE 1 foot at 9 seconds.
.THU...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 5 seconds and E 1 foot at 8 seconds.
.THU NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SW 2 ft at 5 seconds and SE 1 foot at 8 seconds. A chance of
showers. Vsby 1 to 3 NM after midnight.
.FRI...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 5 seconds and SE 1 foot at 8 seconds. A chance of showers
in the morning.
.FRI NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SW 2 ft at 5 seconds and SE 1 foot at 8 seconds.
.SAT THROUGH SUN NIGHT...SE 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.

$$

ANZ230-230600-
Boston Harbor-
103 PM EDT Wed May 22 2024

.THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft.
.TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves
around 2 ft.
.THU...SW winds around 10 kt. Waves 1 foot or less. A chance of
showers in the afternoon.
.THU NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. A chance
of showers in the evening.
.FRI...SW winds 5 to 10 kt. Waves 1 foot or less.
.FRI NIGHT...W winds 5 to 10 kt. Waves 1 foot or less.
.SAT THROUGH SUN NIGHT...S winds 5 to 10 kt. Waves 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.

$$

ANZ236-230600-
Narragansett Bay-
103 PM EDT Wed May 22 2024

.THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft.
.TONIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Waves around 2 ft.
.THU...SW winds 10 to 15 kt. Waves around 2 ft.
.THU NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. A chance of
showers.
.FRI...SW winds 5 to 10 kt. Waves around 2 ft. A chance of
showers in the morning.
.FRI NIGHT...W winds 5 to 10 kt. Waves around 2 ft.
.SAT THROUGH SUN NIGHT...S 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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