Coastal Waters Forecast
Issued by NWS Boston, MA

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FZUS51 KBOX 122005
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
404 PM EDT Wed Jun 12 2024

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

ANZ200-130900-
404 PM EDT Wed Jun 12 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
Weak boundary may bring some shower activity to the eastern
waters this evening. High pressure will remain over the waters
through Thu. Winds become gusty out of the SW Thursday, before a
cold front over the Great Lakes is expected to cross the region Fri.
Showers and Thunderstorms will accompany the cold front. A tropical
low may track well southeast of New England Saturday, across Georges
Bank and then south of Nova Scotia.  High pressure then builds
across the waters Sunday and Monday.

$$

ANZ250-130900-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
404 PM EDT Wed Jun 12 2024

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

$$

ANZ251-130900-
Massachusetts Bay and Ipswich Bay-
404 PM EDT Wed Jun 12 2024

.TONIGHT...SW winds around 5 kt. Seas 1 foot or less. Wave
Detail: S 1 foot at 2 seconds and SE 1 foot at 7 seconds. Patchy
fog after midnight with vsby 1 to 3 NM.
.THU...SW winds around 5 kt, becoming S 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 1 foot or less, then around 2 ft
in the afternoon. Wave Detail: SW 1 foot at 2 seconds and SE
1 foot at 8 seconds, becoming SE 2 ft at 8 seconds and S 1 foot
at 3 seconds.
.THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: S 3 ft at 4 seconds.
.FRI...SW winds around 15 kt with gusts up to 25 kt. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 6 seconds and SW 2 ft at 3 seconds.
A chance of showers in the afternoon with vsby 1 to 3 NM.
.FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
becoming W after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft
at 3 seconds and SE 2 ft at 6 seconds. Showers. Vsby 1 to 3 NM in
the evening.
.SAT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at
4 seconds and E 2 ft at 7 seconds. A chance of showers in the
morning.
.SAT NIGHT...NW winds 5 to 10 kt. Seas around 2 ft.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 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.

$$

ANZ231-130900-
Cape Cod Bay-
404 PM EDT Wed Jun 12 2024

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

$$

ANZ254-130900-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
404 PM EDT Wed Jun 12 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 2 seconds.
.THU...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW
2 ft at 4 seconds and SE 2 ft at 8 seconds. Patchy dense fog in
the morning with vsby 1 NM or less.
.THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 3 ft at
8 seconds. Patchy dense fog. Vsby 1 NM or less.
.FRI...S winds around 15 kt with gusts up to 25 kt. Seas 3 to
4 ft. Wave Detail: SW 3 ft at 4 seconds and S 3 ft at 8 seconds.
.FRI NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 4 ft. Wave Detail: S 3 ft at 5 seconds and SE
1 foot at 16 seconds. A chance of showers in the evening, then
showers likely after midnight.
.SAT...N winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: N 2 ft
at 4 seconds and SE 2 ft at 7 seconds. A chance of showers in the
morning.
.SAT NIGHT...N winds 5 to 10 kt. Seas 3 to 4 ft.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to
20 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.

$$

ANZ255-130900-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
404 PM EDT Wed Jun 12 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 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and
SE 2 ft at 7 seconds. Patchy fog. Vsby 1 NM or less.
.THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and S
3 ft at 8 seconds. Patchy dense fog. Vsby 1 NM or less.
.FRI...S winds 15 to 20 kt. Seas around 3 ft. Wave Detail: S 3 ft
at 5 seconds and S 3 ft at 8 seconds.
.FRI 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 SE
3 ft at 8 seconds. A chance of showers in the evening, then
showers likely after midnight.
.SAT...N winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft
at 8 seconds and NW 2 ft at 4 seconds. A chance of showers in the
morning.
.SAT NIGHT...N winds 5 to 10 kt. Seas 2 to 4 ft.
.SUN AND SUN NIGHT...NE winds 5 to 10 kt, becoming S. Seas 2 to
4 ft.
.MON AND MON NIGHT...SW winds 10 to 15 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.

$$

ANZ256-130900-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
404 PM EDT Wed Jun 12 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, increasing to 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and
S 2 ft at 7 seconds. Patchy dense fog. Vsby 1 NM or less.
.THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 3 ft at
8 seconds.
.FRI...S winds around 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Wave Detail: S 3 ft at 6 seconds.
.FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
becoming W after midnight. Seas 3 to 4 ft. Wave Detail: SW 3 ft
at 5 seconds and SE 2 ft at 8 seconds. Showers likely. Vsby 1 to
3 NM in the evening.
.SAT AND SAT NIGHT...N winds 5 to 10 kt. Seas 3 to 4 ft. Wave
Detail: SE 3 ft at 8 seconds and N 2 ft at 4 seconds.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 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.

$$

ANZ232-130900-
Nantucket Sound-
404 PM EDT Wed Jun 12 2024

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

$$

ANZ233-130900-
Vineyard Sound-
404 PM EDT Wed Jun 12 2024

.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
1 foot at 3 seconds and S 1 foot at 7 seconds.
.THU...SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Seas 1 foot or less, then around 2 ft in the afternoon. Wave
Detail: SW 1 foot at 3 seconds and S 1 foot at 7 seconds,
becoming SW 2 ft at 4 seconds and S 1 foot at 8 seconds. Patchy
fog in the morning with vsby 1 to 3 NM.
.THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and
S 1 foot at 8 seconds.
.FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: S 3 ft at 6 seconds.
.FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
becoming W 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave
Detail: S 2 ft at 6 seconds. Showers likely.
.SAT...N winds around 10 kt. Seas around 2 ft. Wave Detail: N
1 foot at 2 seconds and NW 1 foot at 5 seconds. A chance of
showers in the morning.
.SAT NIGHT...NE winds 5 to 10 kt, becoming N after midnight. Seas
around 2 ft.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to
20 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.

$$

ANZ234-130900-
Buzzards Bay-
404 PM EDT Wed Jun 12 2024

.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
1 foot at 3 seconds and S 1 foot at 7 seconds. Patchy fog after
midnight with vsby 1 to 3 NM.
.THU...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. Seas 1 foot or less, then around
2 ft in the afternoon. Wave Detail: SW 1 foot at 3 seconds and S
1 foot at 7 seconds, becoming SW 2 ft at 3 seconds and S 1 foot
at 8 seconds. Patchy fog in the morning with vsby 1 to 3 NM.
.THU NIGHT...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 S 1 foot at
8 seconds. Patchy fog in the evening with vsby 1 to 3 NM.
.FRI...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 S 1 foot at
7 seconds.
.FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
becoming W 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave
Detail: S 2 ft at 6 seconds. Showers likely.
.SAT...N winds around 10 kt. Seas around 2 ft. Wave Detail: N
1 foot at 3 seconds and SE 1 foot at 7 seconds. A chance of
showers in the morning.
.SAT NIGHT...N winds 5 to 10 kt. Seas around 2 ft.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to
20 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.

$$

ANZ235-130900-
Rhode Island Sound-
404 PM EDT Wed Jun 12 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 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW
2 ft at 4 seconds and S 2 ft at 7 seconds. Patchy fog in the
morning. Patchy dense fog in the afternoon. Vsby 1 NM or less.
.THU NIGHT...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 S 2 ft at
8 seconds. Patchy fog in the evening with vsby 1 NM or less.
.FRI...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
3 ft. Wave Detail: S 3 ft at 6 seconds.
.FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
becoming W after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at
6 seconds. Showers likely.
.SAT AND SAT NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: S 3 ft at 8 seconds and NW 2 ft at 5 seconds.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 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.

$$

ANZ237-130900-
Block Island Sound-
404 PM EDT Wed Jun 12 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. Patchy fog after
midnight with vsby 1 to 3 NM.
.THU...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. Patchy fog in the morning. Patchy dense
fog in the afternoon. Vsby 1 NM or less.
.THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SW
2 ft at 4 seconds. Patchy fog. Vsby 1 NM or less.
.FRI...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: S 3 ft at 7 seconds and SW 2 ft at 4 seconds.
A chance of showers in the afternoon.
.FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
becoming W 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave
Detail: S 3 ft at 7 seconds and SW 2 ft at 4 seconds. A chance of
showers in the evening, then showers likely after midnight. Vsby
1 to 3 NM in the evening.
.SAT AND SAT NIGHT...N winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 8 seconds and N 1 foot at 3 seconds.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 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.

$$

ANZ230-130900-
Boston Harbor-
404 PM EDT Wed Jun 12 2024

.TONIGHT...SW winds around 5 kt. Waves 1 foot or less. Patchy fog
after midnight with vsby 1 to 3 NM.
.THU...SW winds 5 to 10 kt. Waves 1 foot or less.
.THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Waves around 2 ft.
.FRI...SW winds around 15 kt with gusts up to 20 kt. Waves around
2 ft. A chance of showers in the afternoon.
.FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
becoming W 5 to 10 kt after midnight. Waves around 2 ft in the
evening, then 1 foot or less. Showers. Vsby 1 to 3 NM in the
evening.
.SAT AND SAT NIGHT...NW winds 5 to 10 kt. Waves 1 foot or less.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 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.

$$

ANZ236-130900-
Narragansett Bay-
404 PM EDT Wed Jun 12 2024

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