822
FZUS51 KBOX 140804
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
404 AM EDT Wed May 14 2025

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

ANZ200-142100-
404 AM EDT Wed May 14 2025

.Synopsis for Massachusetts and Rhode Island coastal waters...
Low pres over the mid-Atlc states today will weaken as it approaches
the Northeast Thu. This will bring building seas and a better chance
for rain showers to the southern waters. Slow moving low pres will
keep weather conditions unsettled through the weekend.

$$

ANZ250-142100-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
404 AM EDT Wed May 14 2025

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

$$

ANZ251-142100-
Massachusetts Bay and Ipswich Bay-
404 AM EDT Wed May 14 2025

.TODAY...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E
1 foot at 4 seconds and SE 1 foot at 8 seconds.
.TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E
1 foot at 3 seconds and SE 1 foot at 8 seconds. A chance of
showers. Vsby 1 to 3 NM after midnight.
.THU...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
1 foot at 4 seconds and SE 1 foot at 7 seconds. A chance of
showers in the morning with vsby 1 NM or less.
.THU NIGHT...SE winds around 5 kt, becoming SW around 5 kt after
midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and
E 1 foot at 4 seconds.
.FRI...S winds around 5 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: SE 1 foot at 6 seconds and E 1 foot at
12 seconds.
.FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 10 seconds and SE 1 foot at 3 seconds. A chance of
showers.
.SAT...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers.
.SAT NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Showers likely.
.SUN...W winds 5 to 10 kt. Seas around 2 ft. A chance of showers.
.SUN NIGHT...W 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.

$$

ANZ231-142100-
Cape Cod Bay-
404 AM EDT Wed May 14 2025

.TODAY...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
1 foot at 3 seconds and SE 1 foot at 8 seconds.
.TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
1 foot at 2 seconds and SE 1 foot at 8 seconds. A chance of
showers. Vsby 1 to 3 NM after midnight.
.THU...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft
at 8 seconds and SE 1 foot at 2 seconds. A chance of showers.
Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon.
.THU NIGHT...S winds around 5 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 8 seconds and SE 1 foot at 3 seconds.
.FRI...SW winds around 5 kt, becoming SE in the afternoon. Seas
1 foot or less. Wave Detail: E 1 foot at 4 seconds and SE 1 foot
at 8 seconds.
.FRI NIGHT...S winds around 5 kt. Seas 1 foot or less. Wave
Detail: SE 1 foot at 2 seconds and SE 1 foot at 8 seconds. A
chance of showers.
.SAT AND SAT NIGHT...S winds 5 to 10 kt. Seas around 2 ft. A
chance of showers.
.SUN AND SUN NIGHT...W 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.

$$

ANZ254-142100-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
404 AM EDT Wed May 14 2025

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

$$

ANZ255-142100-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
404 AM EDT Wed May 14 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
THURSDAY EVENING...

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

$$

ANZ256-142100-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
404 AM EDT Wed May 14 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
THURSDAY EVENING...

.TODAY...E winds around 10 kt. Gusts up to 20 kt this afternoon.
Seas 2 to 3 ft, building to 3 to 5 ft this afternoon. Wave
Detail: E 2 ft at 4 seconds and SE 2 ft at 8 seconds, becoming S
4 ft at 9 seconds and E 2 ft at 4 seconds. A slight chance of
showers this morning, then a chance of showers this afternoon.
Vsby 1 to 3 NM.
.TONIGHT...SE winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to
5 ft. Wave Detail: S 5 ft at 9 seconds and SE 2 ft at 4 seconds.
A chance of showers. Vsby 1 to 3 NM, decreasing to 1 NM or less
after midnight.
.THU...SE winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. Seas around 5 ft. Wave Detail: S 5 ft at 9 seconds. A
chance of showers. Vsby 1 to 3 NM.
.THU NIGHT...S winds around 5 kt. Seas 3 to 5 ft. Wave Detail: S
5 ft at 8 seconds.
.FRI...SW winds around 5 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft
at 8 seconds.
.FRI NIGHT...S winds 5 to 10 kt. Seas around 3 ft. Wave Detail:
SE 3 ft at 8 seconds. A chance of showers.
.SAT AND SAT NIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt.
Seas 3 to 4 ft. A chance of showers.
.SUN AND SUN NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt. Seas
3 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.

$$

ANZ232-142100-
Nantucket Sound-
404 AM EDT Wed May 14 2025

.TODAY...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E
1 foot at 4 seconds and SE 1 foot at 8 seconds.
.TONIGHT...SE winds around 10 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: S 2 ft at 9 seconds and SE 1 foot at
3 seconds. A chance of showers. Vsby 1 to 3 NM after midnight.
.THU...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft
at 9 seconds and SE 1 foot at 3 seconds. Showers likely, mainly
in the morning. Vsby 1 to 3 NM.
.THU NIGHT...S winds around 5 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 8 seconds and SE 1 foot at 4 seconds.
.FRI...SW winds around 5 kt. Seas around 2 ft. Wave Detail: S
2 ft at 8 seconds and SW 1 foot at 2 seconds.
.FRI NIGHT...S winds around 5 kt. Seas around 2 ft in the
evening, then 1 foot or less. Wave Detail: S 1 foot at 3 seconds
and S 1 foot at 8 seconds, becoming SE 1 foot at 3 seconds and SE
1 foot at 7 seconds. A chance of showers.
.SAT AND SAT NIGHT...S winds 5 to 10 kt. Seas around 2 ft. A
chance of showers.
.SUN AND SUN NIGHT...W 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.

$$

ANZ233-142100-
Vineyard Sound-
404 AM EDT Wed May 14 2025

.TODAY...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E
1 foot at 3 seconds and SE 1 foot at 8 seconds. A slight chance
of showers this afternoon.
.TONIGHT...SE winds around 10 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: S 3 ft at 9 seconds and SE
1 foot at 3 seconds. A chance of showers. Vsby 1 to 3 NM after
midnight.
.THU...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 9 seconds and SE 1 foot at 3 seconds. Showers in the morning
with vsby 1 to 3 NM.
.THU NIGHT...S winds around 5 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 8 seconds and SE 1 foot at 3 seconds.
.FRI...SW winds around 5 kt, becoming S in the afternoon. Seas
around 2 ft. Wave Detail: S 2 ft at 8 seconds and SW 1 foot at
2 seconds.
.FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 7 seconds and SW 1 foot at 2 seconds. A chance of
showers.
.SAT...S winds 5 to 10 kt. Seas around 2 ft. A chance of showers.
.SAT NIGHT...SW winds around 10 kt. Seas around 2 ft. A chance of
showers.
.SUN AND SUN NIGHT...W 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.

$$

ANZ234-142100-
Buzzards Bay-
404 AM EDT Wed May 14 2025

.TODAY...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E
1 foot at 2 seconds and SE 1 foot at 8 seconds. A slight chance
of showers this afternoon.
.TONIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 9 seconds and SE 1 foot at 2 seconds. A chance of
showers. Vsby 1 to 3 NM after midnight.
.THU...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft
at 9 seconds and SE 1 foot at 2 seconds. Showers in the morning
with vsby 1 to 3 NM.
.THU NIGHT...S winds around 5 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 8 seconds and SE 1 foot at 4 seconds.
.FRI...SW winds 5 to 10 kt. Seas around 2 ft in the morning, then
1 foot or less. Wave Detail: S 2 ft at 8 seconds and E 1 foot at
4 seconds, becoming S 1 foot at 3 seconds and S 1 foot at
7 seconds.
.FRI NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: S 1 foot at 3 seconds and S 1 foot at 7 seconds. A chance
of showers.
.SAT...S winds 5 to 10 kt. Seas 1 foot or less. A chance of
showers.
.SAT NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. A chance of
showers.
.SUN AND SUN NIGHT...W 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.

$$

ANZ235-142100-
Rhode Island Sound-
404 AM EDT Wed May 14 2025

.TODAY...E winds around 10 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 9 seconds and SE 2 ft at 4 seconds. A slight chance of
showers. Vsby 1 to 3 NM.
.TONIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: S 4 ft at 9 seconds and SE 2 ft at 4 seconds.
A chance of showers in the evening, then showers likely after
midnight. Vsby 1 to 3 NM.
.THU...SE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft
at 9 seconds. A chance of showers. Vsby 1 to 3 NM.
.THU NIGHT...S winds around 5 kt, becoming SW around 5 kt after
midnight. Seas 2 to 4 ft. Wave Detail: S 4 ft at 8 seconds.
.FRI...SW winds around 5 kt, becoming S in the afternoon. Seas
2 to 3 ft. Wave Detail: S 3 ft at 8 seconds.
.FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 8 seconds. A chance of showers.
.SAT AND SAT NIGHT...S winds 5 to 10 kt, becoming SW. Seas 2 to
3 ft. A chance of showers.
.SUN AND SUN NIGHT...W 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.

$$

ANZ237-142100-
Block Island Sound-
404 AM EDT Wed May 14 2025

.TODAY...E winds around 10 kt. Gusts up to 20 kt this afternoon.
Seas 2 to 4 ft. Wave Detail: S 3 ft at 9 seconds and E 2 ft at
4 seconds. A slight chance of showers this morning, then a chance
of showers this afternoon. Vsby 1 to 3 NM.
.TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt, becoming
SE 5 to 10 kt after midnight. Seas 3 to 4 ft. Wave Detail: S 4 ft
at 9 seconds and E 1 foot at 4 seconds. Showers likely. Vsby 1 to
3 NM.
.THU...SE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft
at 9 seconds and E 1 foot at 4 seconds. A chance of showers. Vsby
1 to 3 NM.
.THU NIGHT...SE winds around 5 kt, becoming SW after midnight.
Seas 2 to 4 ft. Wave Detail: S 4 ft at 8 seconds.
.FRI...SW winds around 5 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 8 seconds.
.FRI NIGHT...S winds around 5 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 7 seconds. A chance of showers.
.SAT AND SAT NIGHT...SE winds 5 to 10 kt, becoming SW. Seas 2 to
3 ft. A chance of showers.
.SUN AND SUN NIGHT...W 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.

$$

ANZ230-142100-
Boston Harbor-
404 AM EDT Wed May 14 2025

.TODAY...E winds 5 to 10 kt. Waves 1 foot or less.
.TONIGHT...SE winds 5 to 10 kt. Waves 1 foot or less. A chance of
showers. Vsby 1 to 3 NM after midnight.
.THU...SE winds around 5 kt. Waves 1 foot or less. A chance of
showers in the morning. Vsby 1 to 3 NM.
.THU NIGHT...SE winds around 5 kt, becoming S after midnight.
Waves 1 foot or less.
.FRI...S winds around 5 kt, becoming SE in the afternoon. Waves
1 foot or less.
.FRI NIGHT...S winds 5 to 10 kt. Waves 1 foot or less. A chance
of showers.
.SAT AND SAT NIGHT...SE winds 5 to 10 kt, becoming S. Waves
around 2 ft. Showers likely.
.SUN AND SUN NIGHT...W winds 5 to 10 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.

$$

ANZ236-142100-
Narragansett Bay-
404 AM EDT Wed May 14 2025

.TODAY...E winds 5 to 10 kt. Waves 2 to 3 ft. A slight chance of
showers this morning, then a chance of showers this afternoon.
Vsby 1 to 3 NM.
.TONIGHT...SE winds 5 to 10 kt. Waves 2 to 3 ft. A chance of
showers in the evening, then showers likely after midnight. Vsby
1 to 3 NM.
.THU...SE winds around 5 kt. Waves 2 to 4 ft. Showers likely in
the morning with vsby 1 to 3 NM.
.THU NIGHT...S winds around 5 kt. Waves 2 to 3 ft.
.FRI...SW winds around 5 kt, becoming S in the afternoon. Waves
2 to 3 ft.
.FRI NIGHT...S winds 5 to 10 kt. Waves around 2 ft. A chance of
showers.
.SAT AND SAT NIGHT...S winds 5 to 10 kt, becoming SW. Waves 2 to
3 ft. A chance of showers.
.SUN AND SUN NIGHT...W winds 5 to 10 kt. Waves 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.

$$

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