Coastal Waters Forecast
Issued by NWS Boston, MA

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875
FZUS51 KBOX 280205
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1004 PM EDT Mon May 27 2024

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

ANZ200-281500-
1004 PM EDT Mon May 27 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
A warm front lifts across the waters today. This will bring
increasing southeasterly winds along with showers and thunderstorms.
The warm front lifts into Maine by early Tue, while a cold front
approaches from the west. The cold front slowly slides into the
waters late on Tue into early Thu. High pres builds in late in the
week.

$$

ANZ250-281500-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1004 PM EDT Mon May 27 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

.OVERNIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 ft. Wave Detail: SE 5 ft at 5 seconds. Showers. Vsby 1 to
3 NM.
.TUE...S winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: S 4 ft at 5 seconds. Patchy fog in the
morning.
.TUE NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 3 to 4 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 NW after midnight.
Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and SW 1 foot
at 3 seconds. A chance of showers after midnight.
.THU AND THU NIGHT...N winds around 10 kt. Seas 2 to 3 ft. Wave
Detail: SE 3 ft at 8 seconds and N 2 ft at 3 seconds. A chance of
showers.
.FRI THROUGH SAT NIGHT...SW 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.

$$

ANZ251-281500-
Massachusetts Bay and Ipswich Bay-
1004 PM EDT Mon May 27 2024

.OVERNIGHT...S 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 SE 3 ft at
9 seconds. Showers. Vsby 1 to 3 NM.
.TUE...S winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 2 to 3 ft. Wave Detail: SE 3 ft at 5 seconds.
.TUE NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds
and S 1 foot at 3 seconds.
.WED...W winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to
3 ft. Wave Detail: E 3 ft at 8 seconds and W 1 foot at 2 seconds.
.WED NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and S 1 foot
at 2 seconds. A chance of showers.
.THU AND THU NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: E 2 ft at 8 seconds and N 1 foot at 3 seconds. A chance
of showers.
.FRI THROUGH SAT 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.

$$

ANZ231-281500-
Cape Cod Bay-
1004 PM EDT Mon May 27 2024

.OVERNIGHT...S winds around 15 kt with gusts up to 25 kt. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and S 2 ft at
4 seconds. Showers. Vsby 1 to 3 NM.
.TUE...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 7 seconds and S 2 ft at 4 seconds.
Patchy fog in the morning.
.TUE NIGHT...SW 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: SE 2 ft at 7 seconds and SW 1 foot at 3 seconds.
.WED...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 8 seconds and SW 1 foot at 2 seconds.
.WED NIGHT...W winds 5 to 10 kt. Seas around 2 ft in the evening,
then 1 foot or less. Wave Detail: SE 2 ft at 8 seconds and SW
1 foot at 2 seconds, becoming W 1 foot at 2 seconds and SE 1 foot
at 8 seconds. A chance of showers after midnight.
.THU...N winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: N
1 foot at 2 seconds and SE 1 foot at 8 seconds. A chance of
showers.
.THU NIGHT...N winds 5 to 10 kt. Seas 1 foot or less.
.FRI THROUGH SAT 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.

$$

ANZ254-281500-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1004 PM EDT Mon May 27 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

.OVERNIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 5 ft. Wave Detail: S 5 ft at 5 seconds. A chance of showers,
then showers with isolated tstms. Some tstms may produce heavy
rainfall with vsby 1 to 3 NM.
.TUE...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: SE 5 ft at 6 seconds and SW 1 foot at
3 seconds. Patchy fog. A chance of showers in the morning with
vsby 1 to 3 NM.
.TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 ft. Wave Detail: SE 5 ft at 7 seconds and SW 1 foot at
4 seconds. Patchy fog.
.WED...SW winds around 10 kt. Seas 3 to 5 ft. Wave Detail: SE
4 ft at 8 seconds and W 1 foot at 3 seconds. Patchy fog in the
morning.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: SE
4 ft at 8 seconds and W 1 foot at 3 seconds. A chance of showers
after midnight.
.THU...W winds 5 to 10 kt, becoming N in the afternoon. 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...NW winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI THROUGH SAT NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft.

Winds and seas 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.

$$

ANZ255-281500-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1004 PM EDT Mon May 27 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

.OVERNIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas
around 4 ft. Wave Detail: S 4 ft at 5 seconds. Showers. A slight
chance of tstms. Some tstms may produce heavy rainfall with vsby
1 to 3 NM.
.TUE...SW winds 15 to 20 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft
at 6 seconds and SW 1 foot at 3 seconds. Patchy fog. A chance of
showers in the morning with vsby 1 to 3 NM.
.TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 ft. Wave Detail: S 5 ft at 7 seconds and SW 1 foot at
4 seconds. Patchy fog.
.WED...SW winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: SW 5 ft
at 6 seconds. Patchy fog in the morning.
.WED NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Seas 2 to 4 ft. Wave Detail: S 4 ft at 8 seconds
and SW 1 foot at 2 seconds. A chance of showers after midnight.
.THU...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at
8 seconds and NW 2 ft at 3 seconds. A chance of showers.
.THU NIGHT...NW winds around 10 kt. Seas 2 to 3 ft.
.FRI THROUGH SAT NIGHT...NW winds 10 to 15 kt. Seas 2 to 3 ft.

Winds and seas 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.

$$

ANZ256-281500-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1004 PM EDT Mon May 27 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TUESDAY NIGHT...

.OVERNIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 5 ft. Wave Detail: SE 5 ft at 5 seconds. Showers with a
slight chance of tstms. Some tstms may produce heavy rainfall.
Vsby 1 to 3 NM.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: S 4 ft at 6 seconds. Patchy fog. Vsby 1 to
3 NM.
.TUE NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 3 to 5 ft. Wave Detail: SW 5 ft at 6 seconds.
Patchy fog.
.WED...SW winds around 10 kt. Seas 3 to 5 ft. Wave Detail: SE
4 ft at 8 seconds and W 1 foot at 5 seconds. Patchy fog in the
morning.
.WED NIGHT AND THU...W winds 5 to 10 kt. Seas 2 to 4 ft. Wave
Detail: S 4 ft at 8 seconds. A chance of showers.
.THU NIGHT...NW winds around 10 kt. Seas 2 to 3 ft. Wave Detail:
S 3 ft at 8 seconds and NW 2 ft at 3 seconds.
.FRI THROUGH SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.

Winds and seas 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.

$$

ANZ232-281500-
Nantucket Sound-
1004 PM EDT Mon May 27 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING...

.OVERNIGHT...S 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 S 3 ft at
8 seconds. Showers, then showers with isolated tstms. Some tstms
may produce heavy rainfall with vsby 1 to 3 NM.
.TUE...SW winds around 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 5 seconds. Patchy fog in the
morning. A chance of showers in the morning with vsby 1 to 3 NM.
.TUE NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 4 ft. Wave Detail: SW 2 ft at 4 seconds and SE
2 ft at 7 seconds. Patchy fog.
.WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and
SE 2 ft at 8 seconds. Patchy fog in the morning.
.WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SW 2 ft at 3 seconds and SE 2 ft at 8 seconds. A chance of
showers after midnight.
.THU...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NW
1 foot at 2 seconds and SE 1 foot at 8 seconds. A chance of
showers.
.THU NIGHT...NW winds around 10 kt. Seas around 2 ft in the
evening, then 1 foot or less.
.FRI THROUGH SAT NIGHT...W winds 10 to 15 kt. Seas around 2 ft.

Winds and seas 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.

$$

ANZ233-281500-
Vineyard Sound-
1004 PM EDT Mon May 27 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING...

.OVERNIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 3 ft. Wave Detail: S 3 ft at 4 seconds. Showers with
isolated tstms. Some tstms may produce heavy rainfall.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: S 3 ft at 5 seconds. Patchy fog in the
morning. A chance of showers in the morning.
.TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave
Detail: S 3 ft at 7 seconds and SW 2 ft at 4 seconds. Patchy fog
after midnight.
.WED...W winds 5 to 10 kt, becoming SW 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 6 seconds.
.WED NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 8 seconds and SW 1 foot at 3 seconds. A chance of showers
after midnight.
.THU...NW winds 5 to 10 kt. Seas around 2 ft in the morning, then
1 foot or less. Wave Detail: NW 1 foot at 3 seconds and S 1 foot
at 7 seconds, becoming N 1 foot at 3 seconds and S 1 foot at
8 seconds. A chance of showers.
.THU NIGHT...NW winds 5 to 10 kt. Seas 1 foot or less.
.FRI THROUGH SAT NIGHT...SW winds 5 to 10 kt. Seas 1 foot or
less.

Winds and seas 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.

$$

ANZ234-281500-
Buzzards Bay-
1004 PM EDT Mon May 27 2024

.OVERNIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 3 ft. Wave Detail: S 3 ft at 6 seconds and S 2 ft at
3 seconds. Showers with isolated tstms. Some tstms may produce
heavy rainfall. Vsby 1 to 3 NM.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. Wave Detail: S 2 ft at 5 seconds. Patchy fog in the
morning. A chance of showers in the morning.
.TUE NIGHT...SW 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: SW 2 ft at 4 seconds and S 2 ft at 7 seconds. Patchy fog
after midnight.
.WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds
and S 2 ft at 7 seconds.
.WED NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 8 seconds and SW 1 foot at 3 seconds. A chance of showers
after midnight.
.THU...NW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: N
1 foot at 3 seconds and S 1 foot at 7 seconds. A chance of
showers.
.THU NIGHT...NW winds 5 to 10 kt. Seas 1 foot or less.
.FRI THROUGH SAT NIGHT...SW winds 5 to 10 kt. Seas 1 foot or
less.

Winds and seas 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.

$$

ANZ235-281500-
Rhode Island Sound-
1004 PM EDT Mon May 27 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING...

.OVERNIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 4 ft. Wave Detail: SE 4 ft at 5 seconds. Showers with
isolated tstms. Some tstms may produce heavy rainfall. Vsby 1 to
3 NM.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: S 4 ft at 6 seconds. Patchy fog in the morning
with vsby 1 to 3 NM.
.TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas 3 to 5 ft. Wave
Detail: SW 4 ft at 6 seconds. Patchy fog after midnight.
.WED...W winds 5 to 10 kt, becoming SW 10 to 15 kt in the
afternoon. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 6 seconds.
.WED NIGHT AND THU...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: S 3 ft at 8 seconds and SW 1 foot at 3 seconds. A chance
of showers.
.THU NIGHT...NW winds around 10 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 8 seconds and W 1 foot at 3 seconds.
.FRI THROUGH SAT NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.

Winds and seas 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.

$$

ANZ237-281500-
Block Island Sound-
1004 PM EDT Mon May 27 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING...

.OVERNIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 4 ft. Wave Detail: S 4 ft at 5 seconds. Isolated tstms.
Showers, then a chance of showers. Some tstms may produce heavy
rainfall. Vsby 1 to 3 NM.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: S 4 ft at 5 seconds. Patchy fog in the
morning.
.TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
becoming W 5 to 10 kt after midnight. 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 4 ft. Wave Detail: SE 4 ft
at 7 seconds and W 1 foot at 4 seconds.
.WED NIGHT AND THU...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: SE 3 ft at 8 seconds and W 1 foot at 3 seconds. A chance
of showers.
.THU NIGHT...NW winds around 10 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 8 seconds and W 1 foot at 3 seconds.
.FRI THROUGH SAT NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.

Winds and seas 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.

$$

ANZ230-281500-
Boston Harbor-
1004 PM EDT Mon May 27 2024

.OVERNIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Waves
around 2 ft. Showers. Vsby 1 to 3 NM.
.TUE...SW winds 10 to 15 kt. Waves around 2 ft.
.TUE NIGHT...SW winds 5 to 10 kt. Waves around 2 ft.
.WED...W winds 5 to 10 kt, becoming SW in the afternoon. Waves
around 2 ft in the morning, then 1 foot or less.
.WED NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Waves 1 foot or less. A chance of showers.
.THU AND THU NIGHT...NW winds 5 to 10 kt. Waves 1 foot or less. A
chance of showers.
.FRI THROUGH SAT 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.

$$

ANZ236-281500-
Narragansett Bay-
1004 PM EDT Mon May 27 2024

.OVERNIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Waves
2 to 3 ft. Showers with isolated tstms. Some tstms may produce
heavy rainfall. Vsby 1 to 3 NM.
.TUE...SW winds 10 to 15 kt. Waves around 2 ft. Patchy fog in the
morning.
.TUE NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Waves 2 to 3 ft.
.WED...SW winds 5 to 10 kt. Waves 2 to 3 ft.
.WED NIGHT THROUGH THU NIGHT...NW winds 5 to 10 kt. Waves 2 to
3 ft. A chance of showers.
.FRI THROUGH SAT 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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