Coastal Waters Forecast
Issued by NWS Boston, MA

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307
FZUS51 KBOX 032004
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
403 PM EDT Wed Jul 3 2024

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

ANZ200-040900-
403 PM EDT Wed Jul 3 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pressure over the waters of southern New England for Wednesday,
but will be short-lived as it drifts east throughout the day and
will move well off shore by Independence Day with a few showers
possible. Unsettled weather returns this weekend with periods of
rain and thunderstorms.

$$

ANZ250-040900-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
403 PM EDT Wed Jul 3 2024

.TONIGHT...S winds 10 to 15 kt. Gusts up to 20 kt this evening.
Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and SE 2 ft at
8 seconds.
.THU...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 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 4 ft. Wave Detail: E 3 ft at 8 seconds and S
2 ft at 4 seconds. A chance of showers after midnight with vsby
1 to 3 NM.
.FRI...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at
8 seconds and SW 2 ft at 3 seconds. A chance of showers in the
morning with vsby 1 to 3 NM.
.FRI NIGHT...S winds around 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 8 seconds and S 1 foot at 3 seconds. A chance of showers
after midnight.
.SAT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: S 3 ft at 4 seconds and E 3 ft at 8 seconds. A
chance of showers.
.SAT NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas
3 to 5 ft. A chance of showers.
.SUN AND SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft.
.MON AND MON 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.

$$

ANZ251-040900-
Massachusetts Bay and Ipswich Bay-
403 PM EDT Wed Jul 3 2024

.TONIGHT...S winds 10 to 15 kt. Gusts up to 20 kt this evening.
Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at
8 seconds.
.THU...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at
8 seconds.
.THU NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and E
2 ft at 9 seconds.
.FRI...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft
at 8 seconds and SW 1 foot at 3 seconds.
.FRI NIGHT...S winds around 10 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 3 seconds and E 2 ft at 8 seconds. A chance of showers
after midnight.
.SAT AND SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at
8 seconds. A chance of showers.
.SUN THROUGH MON 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.

$$

ANZ231-040900-
Cape Cod Bay-
403 PM EDT Wed Jul 3 2024

.TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
1 foot at 2 seconds and E 1 foot at 6 seconds.
.THU...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: E
2 ft at 8 seconds and SW 1 foot at 2 seconds.
.THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas around 2 ft. Wave
Detail: E 2 ft at 8 seconds and SW 1 foot at 3 seconds. A chance
of showers after midnight.
.FRI...S winds 5 to 10 kt. Seas around 2 ft in the morning, then
1 foot or less. Wave Detail: E 2 ft at 8 seconds and SW 1 foot at
2 seconds, becoming S 1 foot at 2 seconds and E 1 foot at
8 seconds. A chance of showers in the morning with vsby 1 to
3 NM.
.FRI NIGHT...S winds around 10 kt. Seas around 2 ft. Wave Detail:
E 2 ft at 8 seconds and S 1 foot at 2 seconds.
.SAT AND SAT NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and E 1 foot at
8 seconds. A chance of showers.
.SUN...SW winds around 10 kt. Seas around 2 ft. A chance of
showers.
.SUN NIGHT THROUGH MON 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.

$$

ANZ254-040900-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
403 PM EDT Wed Jul 3 2024

.TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
2 ft at 7 seconds and SW 1 foot at 2 seconds.
.THU...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: E 3 ft
at 9 seconds and S 2 ft at 4 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 3 to 4 ft. Wave Detail: E 3 ft at 9 seconds and S
2 ft at 4 seconds. A chance of showers after midnight with vsby
1 to 3 NM.
.FRI...S winds around 10 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft
at 8 seconds and SW 2 ft at 4 seconds. A chance of showers in the
morning with vsby 1 to 3 NM.
.FRI NIGHT AND SAT...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 and E 3 ft at
8 seconds.
.SAT NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 5 ft. Wave Detail: S 4 ft at 5 seconds and SE 2 ft at
9 seconds. A chance of showers.
.SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. A chance of showers.
.SUN NIGHT AND MON...SW winds 5 to 10 kt. Seas 2 to 4 ft.
.MON 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.

$$

ANZ255-040900-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
403 PM EDT Wed Jul 3 2024

.TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
2 ft at 7 seconds and SW 1 foot at 3 seconds.
.THU...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 8 seconds and SW 2 ft at 4 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E
3 ft at 9 seconds and SW 2 ft at 4 seconds. A chance of showers
after midnight with vsby 1 to 3 NM.
.FRI...SW winds around 10 kt. Seas 2 to 4 ft. Wave Detail: SW
3 ft at 5 seconds and E 3 ft at 8 seconds. A chance of showers in
the morning with vsby 1 to 3 NM.
.FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: SW
3 ft at 5 seconds and E 2 ft at 8 seconds.
.SAT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: S 5 ft at 7 seconds and SE 2 ft at 9 seconds.
.SAT NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 5 ft. A chance of showers.
.SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. A chance of showers.
.SUN NIGHT THROUGH MON NIGHT...SW winds 10 to 15 kt. Seas 2 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.

$$

ANZ256-040900-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
403 PM EDT Wed Jul 3 2024

.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 8 seconds and SW 1 foot at 3 seconds.
.THU...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and SW 2 ft at
3 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 3 to 4 ft. Wave Detail: E 3 ft at 9 seconds and SW
2 ft at 4 seconds. A chance of showers after midnight with vsby
1 to 3 NM.
.FRI...SW winds around 10 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft
at 8 seconds and SW 2 ft at 5 seconds. A chance of showers in the
morning with vsby 1 to 3 NM.
.FRI NIGHT AND SAT...S winds 15 to 20 kt with gusts up to 25 kt.
Seas 3 to 5 ft. Wave Detail: S 5 ft at 7 seconds and E 3 ft at
8 seconds. A chance of showers.
.SAT NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
5 to 6 ft. Wave Detail: S 6 ft at 7 seconds and SE 2 ft at
9 seconds. A chance of showers.
.SUN...SW winds 10 to 15 kt. Seas 4 to 5 ft. A chance of showers.
.SUN NIGHT THROUGH MON NIGHT...SW winds 5 to 10 kt. Seas 2 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.

$$

ANZ232-040900-
Nantucket Sound-
403 PM EDT Wed Jul 3 2024

.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
1 foot at 3 seconds and E 1 foot at 7 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 4 seconds and E 1 foot
at 8 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 9 seconds. A chance of showers after midnight with
vsby 1 to 3 NM.
.FRI...SW winds around 10 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 3 seconds and E 1 foot at 8 seconds. A chance of showers
in the morning with vsby 1 to 3 NM.
.FRI NIGHT...S winds 10 to 15 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 3 seconds and E 1 foot at 8 seconds.
.SAT AND SAT NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and E 1 foot at
7 seconds. A chance of showers in the morning. A chance of
showers through the night.
.SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. A chance of showers.
.SUN NIGHT THROUGH MON 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.

$$

ANZ233-040900-
Vineyard Sound-
403 PM EDT Wed Jul 3 2024

.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
1 foot at 3 seconds and SE 1 foot at 7 seconds.
.THU...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. 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. 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. A chance of showers after midnight with
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 E 1 foot at 8 seconds. A chance of showers
in the morning with vsby 1 to 3 NM.
.FRI NIGHT...S winds 10 to 15 kt. Seas around 2 ft. Wave Detail:
SW 2 ft at 5 seconds and E 1 foot at 8 seconds. A chance of
showers after midnight.
.SAT AND SAT NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Wave Detail: SW 4 ft at 6 seconds and SE 1 foot
at 9 seconds. A chance of showers.
.SUN...SW winds around 10 kt. Seas 2 to 4 ft. A chance of
showers.
.SUN NIGHT THROUGH MON 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.

$$

ANZ234-040900-
Buzzards Bay-
403 PM EDT Wed Jul 3 2024

.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
1 foot at 3 seconds and SE 1 foot at 7 seconds.
.THU...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 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 around 2 ft. Wave
Detail: SW 2 ft at 4 seconds and SE 1 foot at 9 seconds. A chance
of showers after midnight with vsby 1 to 3 NM.
.FRI...SW winds 5 to 10 kt. Seas around 2 ft in the morning, then
1 foot or less. Wave Detail: SW 1 foot 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...S winds around 10 kt. Seas around 2 ft. Wave Detail:
SW 2 ft at 5 seconds and E 1 foot at 8 seconds. A chance of
showers after midnight.
.SAT AND SAT NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and SE 1 foot
at 9 seconds. A chance of showers.
.SUN...SW winds around 10 kt. Seas 2 to 3 ft. A chance of
showers.
.SUN NIGHT THROUGH MON 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.

$$

ANZ235-040900-
Rhode Island Sound-
403 PM EDT Wed Jul 3 2024

.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 7 seconds and SW 1 foot at 3 seconds.
.THU...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 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 2 ft at 4 seconds and SE
2 ft at 9 seconds. A chance of showers after midnight with vsby
1 to 3 NM.
.FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft
at 5 seconds and SE 2 ft at 8 seconds. A chance of showers in the
morning with vsby 1 to 3 NM.
.FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 7 seconds and S 2 ft at 11 seconds. A chance of showers
after midnight.
.SAT AND SAT NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 3 to 5 ft. Wave Detail: S 5 ft at 7 seconds and SE 2 ft at
10 seconds. A chance of showers.
.SUN...SW winds 10 to 15 kt. Seas 3 to 5 ft. A chance of showers.
.SUN NIGHT THROUGH MON 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.

$$

ANZ237-040900-
Block Island Sound-
403 PM EDT Wed Jul 3 2024

.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 7 seconds and SW 1 foot at 3 seconds.
.THU...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at
8 seconds.
.THU 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 9 seconds. A chance of showers
after midnight with vsby 1 to 3 NM.
.FRI...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft
at 5 seconds and E 2 ft at 9 seconds. A chance of showers in the
morning with vsby 1 to 3 NM.
.FRI NIGHT AND SAT...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. Wave Detail: S 4 ft at 7 seconds and E 2 ft at
8 seconds. A chance of showers.
.SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 ft. Wave Detail: S 4 ft at 7 seconds and SE 2 ft at
9 seconds. A chance of showers.
.SUN...SW winds around 10 kt. Seas 2 to 4 ft. A chance of
showers.
.SUN NIGHT THROUGH MON 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.

$$

ANZ230-040900-
Boston Harbor-
403 PM EDT Wed Jul 3 2024

.TONIGHT...S winds around 10 kt. Gusts up to 20 kt this evening.
Waves around 2 ft this evening, then 1 foot or less.
.THU...SW winds around 10 kt. Waves 1 foot or less, then around
2 ft in the afternoon.
.THU NIGHT...SW winds 5 to 10 kt. Waves around 2 ft.
.FRI...SW winds around 5 kt, becoming SE in the afternoon. Waves
around 2 ft in the morning, then 1 foot or less.
.FRI NIGHT...S winds around 10 kt. Waves 1 foot or less. A chance
of showers after midnight.
.SAT AND SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft. A chance of showers.
.SUN THROUGH MON 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.

$$

ANZ236-040900-
Narragansett Bay-
403 PM EDT Wed Jul 3 2024

.TONIGHT...SW winds 5 to 10 kt. Waves 1 foot or less.
.THU...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. Waves around 2 ft.
.THU NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Waves around 2 ft. A chance of showers after midnight.
.FRI...S winds 5 to 10 kt. Waves around 2 ft. A chance of showers
in the morning with vsby 1 to 3 NM.
.FRI NIGHT THROUGH SAT NIGHT...SW winds 10 to 15 kt with gusts up
to 20 kt. Waves 2 to 4 ft. A chance of showers.
.SUN AND SUN NIGHT...SW winds 5 to 10 kt. Waves 2 to 4 ft.
.MON AND MON NIGHT...SW 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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