Coastal Waters Forecast
Issued by NWS Boston, MA

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871
FZUS51 KBOX 290203
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1003 PM EDT Tue May 28 2024

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

ANZ200-291500-
1003 PM EDT Tue May 28 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
A cold front crosses the waters later Wed into Wed night. A ridge of
high pres then builds in from the west late in the week into the
weekend.

$$

ANZ250-291500-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1003 PM EDT Tue May 28 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT WEDNESDAY...

.OVERNIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 ft. Wave Detail: SE 4 ft at 8 seconds and SW 2 ft at
3 seconds.
.WED...W winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to
4 ft. Wave Detail: SE 4 ft at 8 seconds and W 1 foot at
3 seconds.
.WED NIGHT...SW winds 5 to 10 kt, becoming N 10 to 15 kt with
gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 8 seconds and N 1 foot at 2 seconds.
.THU...N winds 10 to 15 kt, becoming NE 5 to 10 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and N
2 ft at 4 seconds. A chance of showers.
.THU NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 7 seconds and N 1 foot at 3 seconds. A chance of showers
in the evening.
.FRI AND FRI NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: N 2 ft at 3 seconds and SE 2 ft at 7 seconds.
.SAT THROUGH SUN NIGHT...SW 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.

$$

ANZ251-291500-
Massachusetts Bay and Ipswich Bay-
1003 PM EDT Tue May 28 2024

.OVERNIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 8 seconds and W 1 foot at 3 seconds.
.WED...W winds 5 to 10 kt, becoming SE in the afternoon. Seas
2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and W 1 foot at
3 seconds.
.WED NIGHT...SW winds 5 to 10 kt, becoming N after midnight. Seas
around 2 ft. Wave Detail: E 2 ft at 9 seconds.
.THU...NE winds around 10 kt. Seas around 2 ft. Wave Detail: NE
2 ft at 8 seconds and N 1 foot at 3 seconds. A chance of showers.
.THU NIGHT...S winds 5 to 10 kt, becoming NW after midnight. Seas
around 2 ft. Wave Detail: E 2 ft at 6 seconds and N 1 foot at
3 seconds. A chance of showers in the evening.
.FRI AND FRI NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: NE 2 ft at 6 seconds and NW 1 foot at 3 seconds.
.SAT THROUGH SUN NIGHT...SW 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.

$$

ANZ231-291500-
Cape Cod Bay-
1003 PM EDT Tue May 28 2024

.OVERNIGHT...W winds 5 to 10 kt. Gusts up to 20 kt. Seas around
2 ft. Wave Detail: SE 2 ft at 7 seconds and SW 1 foot at
3 seconds. A slight chance of showers.
.WED...W winds 5 to 10 kt, becoming S in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds and W 1 foot at
3 seconds.
.WED NIGHT...SW winds around 5 kt, becoming NW after midnight.
Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and SW 1 foot
at 2 seconds.
.THU...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N
1 foot at 3 seconds and E 1 foot at 7 seconds. A chance of
showers.
.THU NIGHT...N winds 5 to 10 kt, becoming NW after midnight. Seas
1 foot or less. Wave Detail: N 1 foot at 5 seconds.
.FRI AND FRI NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: N 1 foot at 3 seconds and NE 1 foot at 6 seconds.
.SAT THROUGH SUN NIGHT...SW 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.

$$

ANZ254-291500-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1003 PM EDT Tue May 28 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT WEDNESDAY...

.OVERNIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas
4 to 6 ft. Wave Detail: SE 5 ft at 8 seconds and W 1 foot at
3 seconds. Patchy fog with vsby 1 to 3 NM.
.WED...W winds 5 to 10 kt, becoming SW in the afternoon. Seas
3 to 5 ft. Wave Detail: SE 5 ft at 8 seconds and W 1 foot at
3 seconds. Patchy fog in the morning with vsby 1 to 3 NM.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: SE
4 ft at 8 seconds and SW 1 foot at 3 seconds.
.THU...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 8 seconds and NW 1 foot at 2 seconds. A chance of showers.
.THU NIGHT THROUGH FRI NIGHT...NW winds 5 to 10 kt. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 7 seconds and N 1 foot at
4 seconds.
.SAT THROUGH SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.
Wave Detail: NE 3 ft at 10 seconds and NW 1 foot at 3 seconds.

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.

$$

ANZ255-291500-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1003 PM EDT Tue May 28 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT WEDNESDAY...

.OVERNIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas
3 to 5 ft. Wave Detail: S 5 ft at 7 seconds and SW 1 foot at
3 seconds.
.WED...SW winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: S 4 ft
at 8 seconds and W 1 foot at 3 seconds. Patchy fog in the morning
with vsby 1 to 3 NM.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: S
4 ft at 8 seconds.
.THU...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 7 seconds and NW 1 foot at 2 seconds. A chance of showers.
.THU NIGHT AND FRI...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: NE 3 ft at 7 seconds and N 1 foot at 3 seconds.
.FRI NIGHT...NW winds around 10 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 6 seconds and W 1 foot at 3 seconds.
.SAT THROUGH SUN NIGHT...SW 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.

$$

ANZ256-291500-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1003 PM EDT Tue May 28 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT WEDNESDAY...

.OVERNIGHT...W winds 10 to 15 kt, diminishing to 5 to 10 kt.
Gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft at
7 seconds and W 1 foot at 4 seconds.
.WED...W winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft
at 8 seconds.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 8 seconds. A chance of showers after midnight.
.THU...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 8 seconds. A chance of showers.
.THU NIGHT THROUGH FRI NIGHT...NW winds 5 to 10 kt. Seas 2 to
3 ft. Wave Detail: E 3 ft at 7 seconds and N 1 foot at 3 seconds.
.SAT THROUGH SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.
Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 7 seconds.

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.

$$

ANZ232-291500-
Nantucket Sound-
1003 PM EDT Tue May 28 2024

.OVERNIGHT...W winds 10 to 15 kt, diminishing to 5 to 10 kt.
Gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 2 ft at
3 seconds and SE 2 ft at 7 seconds. Patchy fog with vsby 1 to
3 NM.
.WED...W winds 5 to 10 kt, becoming SW in the afternoon. Seas
2 to 3 ft. Wave Detail: SE 2 ft at 8 seconds and W 1 foot at
3 seconds.
.WED NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas
around 2 ft. Wave Detail: SE 2 ft at 8 seconds and SW 1 foot at
3 seconds.
.THU...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 2 ft
at 6 seconds and NW 1 foot at 3 seconds. A chance of showers.
.THU NIGHT AND FRI...N winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: N 1 foot at 4 seconds.
.FRI NIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: NW 1 foot at 2 seconds and E 1 foot at 6 seconds.
.SAT THROUGH SUN NIGHT...SW 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.

$$

ANZ233-291500-
Vineyard Sound-
1003 PM EDT Tue May 28 2024

.OVERNIGHT...W winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at
7 seconds and SW 1 foot at 4 seconds.
.WED...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft
at 7 seconds and W 1 foot at 4 seconds.
.WED NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and SW 1 foot
at 4 seconds. A chance of showers after midnight.
.THU...N winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: E
1 foot at 7 seconds. A chance of showers.
.THU NIGHT THROUGH FRI NIGHT...NW winds 5 to 10 kt. Seas 1 foot
or less. Wave Detail: N 1 foot at 4 seconds.
.SAT THROUGH SUN NIGHT...SW winds 5 to 10 kt. Seas 1 foot or
less. Wave Detail: NW 1 foot at 3 seconds and SE 1 foot at
6 seconds.

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.

$$

ANZ234-291500-
Buzzards Bay-
1003 PM EDT Tue May 28 2024

.OVERNIGHT...W winds 5 to 10 kt. Gusts up to 20 kt. Seas around
2 ft. Wave Detail: S 2 ft at 7 seconds and SW 1 foot at
4 seconds.
.WED...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft
at 7 seconds and W 1 foot at 4 seconds.
.WED NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas around 2 ft in the evening, then 1 foot or less. Wave
Detail: S 2 ft at 7 seconds and SW 1 foot at 4 seconds, becoming
SW 1 foot at 4 seconds and S 1 foot at 7 seconds.
.THU...N winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: NW
1 foot at 4 seconds and E 1 foot at 7 seconds. A chance of
showers.
.THU NIGHT...N winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: N 1 foot at 4 seconds. A chance of showers in the
evening.
.FRI AND FRI NIGHT...NW winds 5 to 10 kt. Seas 1 foot or less.
Wave Detail: NW 1 foot at 2 seconds and E 1 foot at 6 seconds.
.SAT THROUGH SUN NIGHT...SW 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.

$$

ANZ235-291500-
Rhode Island Sound-
1003 PM EDT Tue May 28 2024

.OVERNIGHT...W winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at
7 seconds and SW 1 foot at 4 seconds.
.WED...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 7 seconds and SW 1 foot at 3 seconds.
.WED NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW 1 foot at
3 seconds. A chance of showers after midnight.
.THU...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 7 seconds. A chance of showers.
.THU NIGHT THROUGH FRI NIGHT...NW winds 5 to 10 kt. Seas around
2 ft. Wave Detail: NE 2 ft at 7 seconds and N 1 foot at
3 seconds.
.SAT THROUGH SUN NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 6 seconds.

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.

$$

ANZ237-291500-
Block Island Sound-
1003 PM EDT Tue May 28 2024

.OVERNIGHT...W winds 5 to 10 kt. Gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: S 4 ft at 7 seconds and W 1 foot at 3 seconds.
.WED...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 7 seconds.
.WED NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and W 1 foot at
2 seconds. A chance of showers after midnight.
.THU...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 8 seconds. A chance of showers.
.THU NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and W 1 foot
at 2 seconds.
.FRI AND FRI NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 7 seconds and NW 1 foot at 2 seconds.
.SAT THROUGH SUN NIGHT...SW 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.

$$

ANZ230-291500-
Boston Harbor-
1003 PM EDT Tue May 28 2024

.OVERNIGHT...W winds 5 to 10 kt. Waves around 2 ft, then 1 foot
or less.
.WED...NW winds 5 to 10 kt, becoming SE in the afternoon. Waves
1 foot or less.
.WED NIGHT...SW winds 5 to 10 kt, becoming N after midnight.
Waves 1 foot or less. A chance of showers after midnight.
.THU...N winds 5 to 10 kt, becoming NE in the afternoon. Waves
1 foot or less. A chance of showers.
.THU NIGHT...SE winds 5 to 10 kt, becoming NW after midnight.
Waves 1 foot or less. A chance of showers in the evening.
.FRI AND FRI NIGHT...NW winds 5 to 10 kt. Waves 1 foot or less.
.SAT THROUGH SUN NIGHT...SW 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.

$$

ANZ236-291500-
Narragansett Bay-
1003 PM EDT Tue May 28 2024

.OVERNIGHT...W winds 5 to 10 kt. Waves 2 to 3 ft.
.WED...W winds around 5 kt, becoming SW in the afternoon. Waves
around 2 ft. A chance of showers and tstms in the afternoon. Some
tstms may produce small hail in the afternoon.
.WED NIGHT...SW winds 5 to 10 kt, becoming N after midnight.
Waves around 2 ft. A chance of showers after midnight.
.THU...N winds 5 to 10 kt. Waves around 2 ft. A chance of
showers.
.THU NIGHT...W winds 5 to 10 kt, becoming NW after midnight.
Waves around 2 ft. A chance of showers in the evening.
.FRI AND FRI NIGHT...NW winds 5 to 10 kt. Waves around 2 ft.
.SAT THROUGH SUN NIGHT...SW winds 5 to 10 kt. Waves around 2 ft.

Winds and waves higher in and near tstms.

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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