334
FZUS51 KBOX 020507
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
107 AM EDT Wed Jul 2 2025

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

ANZ200-021800-
107 AM EDT Wed Jul 2 2025

.Synopsis for Massachusetts and Rhode Island coastal waters...
Cold front slowly moves offshore Wed night. Another cold front moves
through late Thu into early Fri, followed by high pres into this
weekend into next week.

$$

ANZ250-021800-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
107 AM EDT Wed Jul 2 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM EDT THIS MORNING...

.REST OF TONIGHT...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
9 seconds. Patchy fog. A chance of showers. Vsby 1 NM or less.
.WED...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft
at 4 seconds and SE 2 ft at 9 seconds. Patchy fog in the morning
with vsby 1 NM or less.
.WED 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 SE 2 ft at
8 seconds. Patchy fog. Vsby 1 to 3 NM, decreasing to 1 NM or less
after midnight.
.THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft
at 8 seconds and SW 1 foot at 3 seconds. Patchy fog in the
afternoon with vsby 1 NM or less.
.THU NIGHT THROUGH FRI NIGHT...NW winds 5 to 10 kt. Seas 2 to
3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds.
.SAT THROUGH SUN...SW 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 2 ft at
8 seconds.
.SUN NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas
3 to 5 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.

$$

ANZ251-021800-
Massachusetts Bay and Ipswich Bay-
107 AM EDT Wed Jul 2 2025

.REST OF TONIGHT...SW winds around 10 kt. Seas around 2 ft. Wave
Detail: SW 2 ft at 3 seconds and E 2 ft at 8 seconds. Patchy fog.
A chance of showers. Vsby 1 to 3 NM.
.WED...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft
at 3 seconds and E 2 ft at 9 seconds.
.WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 3 seconds and SE 2 ft at 8 seconds. Patchy fog. Vsby
1 to 3 NM, decreasing to 1 NM or less after midnight.
.THU...SW winds 5 to 10 kt, becoming S in the afternoon. Seas
around 2 ft. Wave Detail: E 2 ft at 8 seconds and SW 1 foot at
3 seconds.
.THU NIGHT THROUGH FRI NIGHT...NW winds 5 to 10 kt. Seas around
2 ft. Wave Detail: E 2 ft at 8 seconds and SW 1 foot at
3 seconds.
.SAT THROUGH SUN NIGHT...SW winds 15 to 20 kt with gusts up to
25 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and E
2 ft at 8 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.

$$

ANZ231-021800-
Cape Cod Bay-
107 AM EDT Wed Jul 2 2025

.REST OF TONIGHT...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 SE 1 foot
at 8 seconds. Patchy fog. A chance of showers with a slight
chance of tstms. Vsby 1 NM or less.
.WED...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 in the
morning. A chance of showers in the morning with vsby 1 NM or
less.
.WED NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Seas around 2 ft. Wave Detail: SW 1 foot at
3 seconds and SE 1 foot at 8 seconds. Patchy fog. Vsby 1 to 3 NM.
.THU...SW winds 5 to 10 kt. 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...W winds around 10 kt, becoming NW after midnight.
Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and SE
1 foot at 8 seconds.
.FRI AND FRI NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: NW 1 foot at 3 seconds and SE 1 foot at 8 seconds.
.SAT AND SAT NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
.SUN AND SUN NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 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.

$$

ANZ254-021800-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
107 AM EDT Wed Jul 2 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM EDT THIS MORNING...

.REST OF TONIGHT...SW winds 15 to 20 kt. Seas 3 to 5 ft. Wave
Detail: SW 4 ft at 7 seconds and E 2 ft at 9 seconds. Patchy fog.
A slight chance of showers and tstms. Vsby 1 NM or less.
.WED...SW winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 3 to 5 ft. Wave Detail: SW 4 ft at 7 seconds and SE 2 ft at
9 seconds. Patchy fog. A chance of showers. A chance of tstms in
the morning. Vsby 1 NM or less.
.WED NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 7 seconds and SE
2 ft at 8 seconds. Patchy fog. A chance of showers after
midnight. Vsby 1 NM or less.
.THU...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 7 seconds and
SE 2 ft at 8 seconds. Patchy fog. Vsby 1 to 3 NM, decreasing to
1 NM or less in the afternoon.
.THU NIGHT THROUGH FRI NIGHT...NW winds 10 to 15 kt. Seas 2 to
4 ft. Wave Detail: SW 3 ft at 6 seconds and SE 3 ft at 8 seconds.
.SAT THROUGH SUN NIGHT...SW winds 15 to 20 kt with gusts up to
25 kt. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and SE
2 ft at 8 seconds.

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.

$$

ANZ255-021800-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
107 AM EDT Wed Jul 2 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.REST OF TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 4 to 6 ft. Wave Detail: SW 5 ft at 7 seconds and E 1 foot at
9 seconds. Patchy fog. A chance of showers and tstms. Vsby 1 NM
or less.
.WED...SW winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 3 to 5 ft. Wave Detail: SW 5 ft at 7 seconds and E 1 foot at
9 seconds. Patchy fog. A chance of showers. A chance of tstms in
the morning. Vsby 1 NM or less.
.WED NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: S
5 ft at 8 seconds and E 1 foot at 8 seconds. Patchy fog. A chance
of showers after midnight. Vsby 1 NM or less.
.THU...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft
at 7 seconds and E 1 foot at 8 seconds. Patchy fog. Vsby 1 to
3 NM, decreasing to 1 NM or less in the afternoon.
.THU 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 4 ft
at 7 seconds and E 1 foot at 8 seconds. Patchy fog in the evening
with vsby 1 NM or less.
.FRI AND FRI NIGHT...NW winds 5 to 10 kt. Seas 2 to 4 ft. Wave
Detail: SW 3 ft at 8 seconds and E 1 foot at 8 seconds.
.SAT THROUGH SUN...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft.
.SUN NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 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.

$$

ANZ256-021800-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
107 AM EDT Wed Jul 2 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.REST OF TONIGHT...SW winds 15 to 20 kt. Seas 4 to 6 ft. Wave
Detail: S 5 ft at 7 seconds and E 1 foot at 8 seconds. Patchy
fog. A chance of showers and tstms. Vsby 1 NM or less.
.WED...SW winds 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: S 5 ft
at 7 seconds and E 1 foot at 9 seconds. Patchy fog. A chance of
showers. Vsby 1 NM or less.
.WED NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Seas 3 to 5 ft. Wave Detail: S 4 ft at 8 seconds
and E 1 foot at 8 seconds. Patchy fog. Vsby 1 NM or less,
increasing to 1 to 3 NM after midnight.
.THU...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: S 3 ft
at 7 seconds and SE 2 ft at 8 seconds. Patchy fog. Vsby 1 NM or
less.
.THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
NW after midnight. Seas 3 to 4 ft. Wave Detail: SW 4 ft at
7 seconds and SE 3 ft at 8 seconds.
.FRI AND FRI NIGHT...NW winds around 10 kt. Seas 3 to 4 ft. Wave
Detail: W 3 ft at 7 seconds and SE 2 ft at 8 seconds.
.SAT THROUGH SUN...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft.
.SUN NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 5 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.

$$

ANZ232-021800-
Nantucket Sound-
107 AM EDT Wed Jul 2 2025

.REST OF TONIGHT...SW winds 15 to 20 kt. Seas 2 to 3 ft. Wave
Detail: SW 3 ft at 4 seconds and SE 1 foot at 9 seconds. Patchy
fog. A chance of showers and tstms. Vsby 1 NM or less.
.WED...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft
at 4 seconds and SE 1 foot at 9 seconds. Patchy fog. A chance of
showers. A chance of tstms in the morning. Vsby 1 NM or less,
increasing to 1 to 3 NM in the afternoon.
.WED NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail:
SW 2 ft at 4 seconds and SE 1 foot at 8 seconds. Patchy fog. Vsby
1 NM or less, increasing to 1 to 3 NM after midnight.
.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 SE 1 foot
at 8 seconds. Patchy fog in the morning with vsby 1 to 3 NM.
.THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
NW after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at
4 seconds and SE 1 foot at 8 seconds.
.FRI AND FRI NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: NW 2 ft at 4 seconds and SE 1 foot at 8 seconds.
.SAT THROUGH SUN NIGHT...SW winds 15 to 20 kt with gusts up to
25 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.

$$

ANZ233-021800-
Vineyard Sound-
107 AM EDT Wed Jul 2 2025

.REST OF TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: SW 3 ft at 6 seconds and SE 1 foot
at 8 seconds. Patchy fog. A chance of showers and tstms. Vsby
1 NM or less.
.WED...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft
at 7 seconds and SE 1 foot at 9 seconds. Patchy fog. Showers
likely in the morning. A chance of showers in the afternoon. Vsby
1 NM or less, increasing to 1 to 3 NM in the afternoon.
.WED NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 7 seconds
and SE 1 foot at 8 seconds. Patchy fog. Vsby 1 to 3 NM.
.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 7 seconds and SE 1 foot
at 8 seconds. Patchy fog in the morning with vsby 1 to 3 NM.
.THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
NW after midnight. Seas 2 to 3 ft. Wave Detail: S 2 ft at
7 seconds.
.FRI AND FRI NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 7 seconds.
.SAT AND SAT NIGHT...SW winds 10 to 15 kt. Seas around 2 ft.
.SUN AND SUN NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 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.

$$

ANZ234-021800-
Buzzards Bay-
107 AM EDT Wed Jul 2 2025

.REST OF TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: SW 3 ft at 7 seconds and SE 1 foot
at 8 seconds. Patchy fog. A chance of showers with a slight
chance of tstms. Vsby 1 NM or less.
.WED...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 7 seconds and SE 1 foot
at 9 seconds. Patchy fog. A chance of showers. Vsby 1 NM or less,
increasing to 1 to 3 NM in the afternoon.
.WED NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at
7 seconds and SE 1 foot at 8 seconds. Patchy fog. Vsby 1 NM or
less, increasing to 1 to 3 NM after midnight.
.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 7 seconds and SE 1 foot at 8 seconds.
.THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
NW after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at
5 seconds and SE 1 foot at 8 seconds.
.FRI AND FRI NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SW 2 ft at 6 seconds and SE 1 foot at 8 seconds.
.SAT AND SAT NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt.
Seas around 2 ft.
.SUN AND SUN NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 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.

$$

ANZ235-021800-
Rhode Island Sound-
107 AM EDT Wed Jul 2 2025

.REST OF TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds and SE 1 foot at
8 seconds. Patchy fog. A chance of showers with a slight chance
of tstms. Vsby 1 NM or less.
.WED...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft
at 7 seconds and SE 1 foot at 9 seconds. Patchy fog. A chance of
showers in the morning. Vsby 1 NM or less.
.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 SE 1 foot at 8 seconds. Patchy fog. Vsby 1 NM or less,
increasing to 1 to 3 NM after midnight.
.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: S 3 ft
at 7 seconds and SE 2 ft at 8 seconds. Patchy fog. Vsby 1 to
3 NM.
.THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
NW after midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at
7 seconds and SE 2 ft at 8 seconds.
.FRI AND FRI NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: SW 3 ft at 7 seconds and SE 2 ft at 8 seconds.
.SAT THROUGH SUN NIGHT...SW winds 15 to 20 kt with gusts up to
25 kt. Seas 2 to 4 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.

$$

ANZ237-021800-
Block Island Sound-
107 AM EDT Wed Jul 2 2025

.REST OF TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. Wave Detail: S 4 ft at 7 seconds. Patchy fog. A
chance of showers and tstms. Vsby 1 NM or less.
.WED...SW winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: SW 4 ft
at 7 seconds and SE 2 ft at 8 seconds. Patchy fog. A chance of
showers. Vsby 1 NM or less, increasing to 1 to 3 NM in the
afternoon.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: SW
4 ft at 7 seconds and SE 2 ft at 9 seconds. Patchy fog. Vsby 1 to
3 NM, decreasing to 1 NM or less after midnight.
.THU...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at
7 seconds and SE 2 ft at 8 seconds. Patchy fog in the morning
with vsby 1 NM or less.
.THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
NW after midnight. Seas 2 to 3 ft. Wave Detail: W 3 ft at
6 seconds and SE 2 ft at 8 seconds.
.FRI AND FRI NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: W 2 ft at 5 seconds and S 2 ft at 8 seconds.
.SAT THROUGH SUN NIGHT...SW winds 10 to 15 kt with gusts up to
25 kt. Seas 2 to 4 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.

$$

ANZ230-021800-
Boston Harbor-
107 AM EDT Wed Jul 2 2025

.REST OF TONIGHT...SW winds around 10 kt. Waves 1 foot or less. A
chance of showers.
.WED...SW winds 5 to 10 kt. Waves 1 foot or less, then around
2 ft in the afternoon.
.WED NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less.
.THU...SW winds 5 to 10 kt. Waves 1 foot or less.
.THU NIGHT THROUGH FRI NIGHT...NW winds 5 to 10 kt. Waves around
2 ft.
.SAT THROUGH SUN NIGHT...SW winds 15 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.

$$

ANZ236-021800-
Narragansett Bay-
107 AM EDT Wed Jul 2 2025

.REST OF TONIGHT...SW winds around 10 kt. Waves 2 to 3 ft. Patchy
fog. A chance of showers and tstms. Vsby 1 to 3 NM.
.WED...SW winds 5 to 10 kt. Waves 2 to 3 ft. Patchy fog in the
morning. A chance of showers in the morning with vsby 1 to 3 NM.
.WED NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. Patchy fog.
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. Waves around 2 ft.
.THU NIGHT AND FRI...W winds 5 to 10 kt. Waves around 2 ft.
.FRI NIGHT...NW winds 5 to 10 kt. Waves around 2 ft.
.SAT THROUGH SUN NIGHT...SW winds 10 to 15 kt with gusts up to
25 kt. Waves 2 to 3 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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