Coastal Waters Forecast
Issued by NWS Boston, MA

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FZUS51 KBOX 030805
CWFBOX

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

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

ANZ200-032100-
405 AM 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.

$$

ANZ250-032100-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
405 AM EDT Wed Jul 3 2024

.TODAY...SW winds around 5 kt, becoming S this afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 8 seconds and S 1 foot at
2 seconds.
.TONIGHT...S winds around 10 kt. 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 with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SW 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: S 3 ft at 4 seconds and E
3 ft at 8 seconds.
.FRI...S 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.
.FRI NIGHT...S winds around 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 8 seconds and SW 1 foot at 3 seconds. A chance of showers
after midnight.
.SAT THROUGH SUN...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. A chance of showers. Vsby 1 to 3 NM.
.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.

$$

ANZ251-032100-
Massachusetts Bay and Ipswich Bay-
405 AM EDT Wed Jul 3 2024

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

$$

ANZ231-032100-
Cape Cod Bay-
405 AM EDT Wed Jul 3 2024

.TODAY...W winds around 5 kt, becoming S this afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 8 seconds and S 1 foot at
2 seconds.
.TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
1 foot at 2 seconds and SW 1 foot at 2 seconds.
.THU...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Gusts up to 20 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 3 seconds and E 2 ft 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,
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.
.FRI AND FRI NIGHT...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. A chance
of showers through the day. A chance of showers after midnight.
Vsby 1 to 3 NM.
.SAT THROUGH SUN...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 E 2 ft at
8 seconds. A chance of showers.
.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.

$$

ANZ254-032100-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
405 AM EDT Wed Jul 3 2024

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

$$

ANZ255-032100-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
405 AM EDT Wed Jul 3 2024

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

$$

ANZ256-032100-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
405 AM EDT Wed Jul 3 2024

.TODAY...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 7 seconds.
.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. Patchy fog. Vsby
1 NM or less.
.THU...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 8 seconds.
Patchy fog in the morning with vsby 1 NM or less.
.THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas around 3 ft. Wave Detail: SW 3 ft at 5 seconds and
E 3 ft at 9 seconds. Patchy fog after midnight. A chance of
showers after midnight with vsby 1 to 3 NM.
.FRI...SW winds around 10 kt. Seas around 3 ft. Wave Detail: SW
3 ft at 5 seconds and E 3 ft at 8 seconds. A chance of showers.
Patchy fog in the morning with vsby 1 to 3 NM.
.FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S
3 ft at 6 seconds and E 2 ft at 8 seconds. A chance of showers
after midnight.
.SAT THROUGH SUN...SW winds 15 to 20 kt. Seas 3 to 5 ft. A chance
of showers.
.SUN NIGHT...SW winds 10 to 15 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.

$$

ANZ232-032100-
Nantucket Sound-
405 AM EDT Wed Jul 3 2024

.TODAY...W winds around 5 kt, becoming SW this afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds.
.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
1 foot at 3 seconds and SE 1 foot at 8 seconds. Patchy fog after
midnight with vsby 1 NM or less.
.THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. Wave Detail: SW 2 ft at 3 seconds and E 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 in the
evening. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and
SW 1 foot at 3 seconds. Patchy fog 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.
Patchy fog 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 3 seconds and E 1 foot at 8 seconds. A chance of
showers after midnight.
.SAT THROUGH SUN...SW winds 15 to 20 kt. Seas 2 to 3 ft. A chance
of showers.
.SUN 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.

$$

ANZ233-032100-
Vineyard Sound-
405 AM EDT Wed Jul 3 2024

.TODAY...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 6 seconds.
.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
1 foot at 2 seconds and S 1 foot at 3 seconds. Patchy fog. Vsby
1 to 3 NM, decreasing to 1 NM or less after midnight.
.THU...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 SE 1 foot at
8 seconds. Patchy fog in the morning with vsby 1 to 3 NM.
.THU NIGHT...SW winds around 10 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and
SW 1 foot at 3 seconds. Patchy fog after midnight. 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.
Patchy fog 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 THROUGH SUN...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. A chance of showers.
.SUN 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.

$$

ANZ234-032100-
Buzzards Bay-
405 AM EDT Wed Jul 3 2024

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

$$

ANZ235-032100-
Rhode Island Sound-
405 AM EDT Wed Jul 3 2024

.TODAY...W winds around 5 kt, becoming SW this afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds and S 1 foot at
3 seconds.
.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 7 seconds and SW 1 foot at 2 seconds. Patchy fog. Vsby
1 to 3 NM, decreasing to 1 NM or less after midnight.
.THU...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 SE 2 ft at 8 seconds.
Patchy fog in the morning with vsby 1 NM or less.
.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 around 10 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 5 seconds and SE 2 ft at 8 seconds. A chance of showers.
Patchy fog in the morning with vsby 1 to 3 NM.
.FRI NIGHT...S winds around 10 kt. Seas 2 to 3 ft. Wave Detail:
SE 3 ft at 7 seconds and SE 2 ft at 11 seconds. A chance of
showers after midnight.
.SAT THROUGH SUN...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. A chance of showers.
.SUN 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.

$$

ANZ237-032100-
Block Island Sound-
405 AM EDT Wed Jul 3 2024

.TODAY...W winds around 5 kt, becoming S this afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds.
.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. Patchy fog. Vsby
1 to 3 NM, decreasing to 1 NM or less after midnight.
.THU...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 SE 2 ft at 8 seconds.
Patchy fog in the morning with vsby 1 NM or less.
.THU NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and E
2 ft at 9 seconds. Patchy fog after midnight. 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: S 2 ft
at 5 seconds and E 2 ft at 8 seconds. A chance of showers. Patchy
fog in the morning with vsby 1 to 3 NM.
.FRI NIGHT...S winds around 10 kt. Seas 2 to 3 ft. Wave Detail:
SE 2 ft at 7 seconds and SE 1 foot at 11 seconds. A chance of
showers after midnight.
.SAT THROUGH SUN...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. A chance of showers.
.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.

$$

ANZ230-032100-
Boston Harbor-
405 AM EDT Wed Jul 3 2024

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

$$

ANZ236-032100-
Narragansett Bay-
405 AM EDT Wed Jul 3 2024

.TODAY...SW winds around 5 kt, becoming S this afternoon. Waves
1 foot or less.
.TONIGHT...SW winds 5 to 10 kt. Waves 1 foot or less. Patchy fog.
Vsby 1 to 3 NM, decreasing to 1 NM or less after midnight.
.THU...SW winds 5 to 10 kt with gusts up to 20 kt. Waves around
2 ft. Patchy fog in the morning with vsby 1 to 3 NM.
.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
with vsby 1 to 3 NM.
.FRI...SW winds 5 to 10 kt. Waves around 2 ft. A chance of
showers. Patchy fog in the morning with vsby 1 to 3 NM.
.FRI NIGHT...S winds 5 to 10 kt. Waves around 2 ft. A chance of
showers after midnight.
.SAT THROUGH SUN...SW winds 10 to 15 kt with gusts up to 20 kt.
Waves 2 to 4 ft. A chance of showers.
.SUN NIGHT...SW 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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