899
FZUS51 KBOX 072004
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
404 PM EDT Sat Jun 7 2025

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

ANZ200-080900-
404 PM EDT Sat Jun 7 2025

.Synopsis for Massachusetts and Rhode Island coastal waters...
Periods of rain with embedded thunder as a cold front exits the
coast Saturday evening. Improving conditions on Sunday as the front
pushes further off shore. A weak area of low pressure brings spotty
showers Monday, but more active weather arrives late Tuesday ahead
of a cold front. Dry and quiet conditions expected mid to late week.

$$

ANZ250-080900-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
404 PM EDT Sat Jun 7 2025

.TONIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 9 seconds and E 2 ft at 7 seconds. Patchy fog. A chance
of showers with isolated tstms this evening. Vsby 1 NM or less.
.SUN...N winds 5 to 10 kt, becoming NE in the afternoon. Seas
2 to 4 ft. Wave Detail: SE 4 ft at 9 seconds and NE 2 ft at
6 seconds. Patchy fog. Vsby 1 NM or less in the morning.
.SUN NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 8 seconds and SE 3 ft at 8 seconds. Patchy fog.
.MON...E winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft
at 8 seconds and SE 1 foot at 7 seconds. Patchy fog in the
morning.
.MON NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E
3 ft at 7 seconds and SE 2 ft at 8 seconds.
.TUE...SE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft
at 7 seconds and SE 2 ft at 8 seconds. Showers likely in the
afternoon.
.TUE NIGHT...S winds around 10 kt, becoming SW after midnight.
Seas 2 to 4 ft. A chance of showers.
.WED THROUGH THU NIGHT...W winds 10 to 15 kt with gusts up to
20 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.

$$

ANZ251-080900-
Massachusetts Bay and Ipswich Bay-
404 PM EDT Sat Jun 7 2025

.TONIGHT...N winds 5 to 10 kt, becoming NW after midnight. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds and W 1 foot at
2 seconds. Patchy fog. Showers likely with isolated tstms this
evening. Vsby 1 NM or less.
.SUN...N winds 5 to 10 kt, becoming E in the afternoon. Seas
around 2 ft. Wave Detail: NE 2 ft at 6 seconds and SE 2 ft at
9 seconds. Patchy fog in the morning with vsby 1 NM or less.
.SUN NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
NE 2 ft at 7 seconds and SE 2 ft at 8 seconds. Patchy fog after
midnight.
.MON...E winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 7 seconds and SE 1 foot at 12 seconds. Patchy fog in the
morning. A chance of showers in the morning.
.MON NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 7 seconds and E 1 foot at 12 seconds.
.TUE AND TUE NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: SE 3 ft at 7 seconds and SW 1 foot at 2 seconds. Showers
likely through the night. A chance of showers after midnight.
.WED THROUGH THU NIGHT...W winds 10 to 15 kt with gusts up to
20 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.

$$

ANZ231-080900-
Cape Cod Bay-
404 PM EDT Sat Jun 7 2025

.TONIGHT...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 9 seconds and NW 1 foot at 2 seconds. Patchy fog. Showers
likely this evening. Vsby 1 NM or less.
.SUN...N winds 5 to 10 kt, becoming NE in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 9 seconds and N 1 foot at
3 seconds. Patchy fog in the morning with vsby 1 NM or less.
.SUN NIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 8 seconds and NE 1 foot at 3 seconds.
.MON...E winds around 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 7 seconds and E 1 foot at 3 seconds. Patchy fog in the
morning.
.MON NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E
2 ft at 3 seconds and S 2 ft at 7 seconds.
.TUE...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft
at 3 seconds and S 1 foot at 7 seconds. A chance of showers in
the afternoon.
.TUE NIGHT...S winds around 10 kt, becoming SW after midnight.
Seas around 2 ft. A chance of showers.
.WED THROUGH THU NIGHT...W 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.

$$

ANZ254-080900-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
404 PM EDT Sat Jun 7 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT SUNDAY...

.TONIGHT...NW winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: S
5 ft at 9 seconds and E 2 ft at 8 seconds. Patchy fog. Showers
likely with isolated tstms this evening. Vsby 1 NM or less.
.SUN...NE winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: SE 5 ft
at 9 seconds and E 1 foot at 8 seconds. Patchy fog in the morning
with vsby 1 NM or less.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE
4 ft at 7 seconds and N 1 foot at 3 seconds.
.MON...E winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft
at 7 seconds and SE 1 foot at 12 seconds. Patchy fog in the
morning.
.MON NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE
4 ft at 7 seconds and SE 1 foot at 12 seconds.
.TUE...SE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft
at 7 seconds and S 3 ft at 8 seconds. A chance of showers in the
afternoon.
.TUE NIGHT...SW winds around 10 kt. Seas 3 to 4 ft. A chance of
showers.
.WED THROUGH THU...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 5 ft.
.THU NIGHT...W winds 10 to 15 kt with gusts up to 20 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.

$$

ANZ255-080900-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
404 PM EDT Sat Jun 7 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT SUNDAY...

.TONIGHT...NW winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: S
5 ft at 9 seconds and E 1 foot at 8 seconds. Patchy fog. Showers
likely with isolated tstms this evening. Vsby 1 NM or less.
.SUN...NE winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 3 to 5 ft. Wave Detail: SE 5 ft at 8 seconds and
E 1 foot at 8 seconds. Patchy fog in the morning with vsby 1 NM
or less.
.SUN NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 7 seconds and SE
1 foot at 13 seconds. A chance of showers after midnight.
.MON...E winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft
at 7 seconds and SE 1 foot at 12 seconds. A chance of showers in
the morning.
.MON NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E
3 ft at 7 seconds and S 3 ft at 8 seconds.
.TUE...SE winds 5 to 10 kt, becoming S 10 to 15 kt in the
afternoon. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 7 seconds and
SE 1 foot at 11 seconds. Showers likely in the afternoon.
.TUE NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. A chance of
showers.
.WED THROUGH THU NIGHT...W winds 10 to 15 kt with gusts up to
20 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.

$$

ANZ256-080900-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
404 PM EDT Sat Jun 7 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT SUNDAY...

.TONIGHT...N winds 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: S
5 ft at 9 seconds and E 1 foot at 8 seconds. Patchy fog. Showers
likely with isolated tstms this evening. Vsby 1 NM or less.
.SUN...NE winds 5 to 10 kt, becoming E 10 to 15 kt in the
afternoon. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and
SE 1 foot at 13 seconds. Patchy fog in the morning with vsby 1 NM
or less.
.SUN NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 7 seconds and SE
1 foot at 13 seconds. A chance of showers after midnight.
.MON...E winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 3 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and SE 1 foot
at 12 seconds. A chance of showers in the morning.
.MON NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE
3 ft at 7 seconds and SE 1 foot at 12 seconds.
.TUE...SE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft
at 7 seconds and SE 1 foot at 11 seconds. A chance of showers in
the morning. Showers likely in the afternoon.
.TUE NIGHT...SW winds around 10 kt. Seas 3 to 5 ft. Showers
likely, mainly in the evening.
.WED THROUGH THU NIGHT...W winds 10 to 15 kt with gusts up to
20 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.

$$

ANZ232-080900-
Nantucket Sound-
404 PM EDT Sat Jun 7 2025

.TONIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 9 seconds and NW 1 foot at 3 seconds. Patchy fog. A
chance of showers with isolated tstms this evening. Vsby 1 NM or
less.
.SUN...NE winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: N 2 ft at 5 seconds and S
2 ft at 8 seconds. Patchy fog in the morning with vsby 1 NM or
less.
.SUN NIGHT...NE winds 10 to 15 kt. Seas around 2 ft. Wave Detail:
E 2 ft at 4 seconds and S 2 ft at 7 seconds.
.MON...E winds 10 to 15 kt. Seas around 2 ft. Wave Detail: E 2 ft
at 4 seconds and S 1 foot at 7 seconds.
.MON NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 6 seconds and SE 1 foot at 12 seconds.
.TUE...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 7 seconds and SE 1 foot at 11 seconds. A chance of
showers in the afternoon.
.TUE NIGHT...SW winds around 10 kt. Seas 2 to 3 ft. A chance of
showers.
.WED THROUGH THU NIGHT...W winds 10 to 15 kt with gusts up to
20 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.

$$

ANZ233-080900-
Vineyard Sound-
404 PM EDT Sat Jun 7 2025

.TONIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 9 seconds and E 1 foot at 6 seconds. Patchy fog. Showers
likely with isolated tstms this evening. Vsby 1 NM or less.
.SUN...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft
at 8 seconds and NE 1 foot at 6 seconds. Patchy fog in the
morning with vsby 1 NM or less.
.SUN NIGHT...NE winds 10 to 15 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 7 seconds and E 1 foot at 3 seconds. A chance of
showers after midnight.
.MON...E winds 10 to 15 kt. Seas around 2 ft. Wave Detail: S 2 ft
at 7 seconds and E 1 foot at 3 seconds.
.MON NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 7 seconds and E 1 foot at 3 seconds.
.TUE...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft
at 7 seconds and E 1 foot at 4 seconds. Showers likely in the
afternoon.
.TUE NIGHT...SW winds around 10 kt. Seas 2 to 3 ft. A chance of
showers.
.WED THROUGH THU NIGHT...W winds 10 to 15 kt with gusts up to
20 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.

$$

ANZ234-080900-
Buzzards Bay-
404 PM EDT Sat Jun 7 2025

.TONIGHT...N winds 5 to 10 kt. Gusts up to 20 kt this evening.
Seas around 2 ft. Wave Detail: S 2 ft at 9 seconds and NW 1 foot
at 4 seconds. Patchy fog. Showers likely with isolated tstms this
evening. Vsby 1 NM or less.
.SUN...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft
at 8 seconds and N 1 foot at 4 seconds. Patchy fog in the morning
with vsby 1 NM or less.
.SUN NIGHT...NE winds around 10 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 7 seconds and NE 1 foot at 3 seconds. A chance
of showers after midnight.
.MON...E winds 10 to 15 kt. Seas around 2 ft. Wave Detail: NE
1 foot at 3 seconds and S 1 foot at 7 seconds.
.MON NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E
1 foot at 3 seconds and S 1 foot at 7 seconds.
.TUE...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E
1 foot at 2 seconds and S 1 foot at 7 seconds. Showers likely in
the afternoon.
.TUE NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. A chance of
showers.
.WED THROUGH THU NIGHT...W winds 10 to 15 kt with gusts up to
20 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.

$$

ANZ235-080900-
Rhode Island Sound-
404 PM EDT Sat Jun 7 2025

.TONIGHT...N winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S
4 ft at 9 seconds and E 1 foot at 7 seconds. Patchy fog. A chance
of showers with isolated tstms this evening. Vsby 1 NM or less.
.SUN...NE winds 5 to 10 kt, becoming E 10 to 15 kt in the
afternoon. Seas 2 to 4 ft. Wave Detail: S 4 ft at 8 seconds and E
2 ft at 4 seconds. Patchy fog in the morning with vsby 1 to 3 NM.
.SUN NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and SE
1 foot at 13 seconds. A chance of showers after midnight.
.MON...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft
at 7 seconds and SE 1 foot at 12 seconds. A chance of showers in
the morning.
.MON NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 7 seconds and S 2 ft at 8 seconds.
.TUE...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 7 seconds and SE 1 foot at 11 seconds. A chance of showers in
the morning, then showers likely in the afternoon.
.TUE NIGHT...SW winds around 10 kt. Seas 2 to 4 ft. Showers
likely, mainly in the evening.
.WED THROUGH THU NIGHT...W winds 10 to 15 kt with gusts up to
20 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.

$$

ANZ237-080900-
Block Island Sound-
404 PM EDT Sat Jun 7 2025

.TONIGHT...N winds around 5 kt. Seas 3 to 4 ft. Wave Detail: S
4 ft at 9 seconds and E 1 foot at 7 seconds. Patchy fog. Showers
likely with isolated tstms this evening. Vsby 1 NM or less.
.SUN...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 8 seconds and SE 1 foot at 13 seconds. Patchy fog in the
morning with vsby 1 NM or less.
.SUN NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and SE
3 ft at 8 seconds. A chance of showers.
.MON...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 7 seconds and SE 1 foot at 12 seconds. A chance of showers in
the morning.
.MON NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 7 seconds and SE 1 foot at 12 seconds.
.TUE AND TUE NIGHT...W winds 5 to 10 kt. Seas 2 to 4 ft. Wave
Detail: SE 3 ft at 7 seconds and W 1 foot at 2 seconds. A chance
of showers in the morning, then showers likely through the night.
.WED THROUGH THU NIGHT...W winds 10 to 15 kt with gusts up to
20 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.

$$

ANZ230-080900-
Boston Harbor-
404 PM EDT Sat Jun 7 2025

.TONIGHT...N winds 5 to 10 kt, becoming NW after midnight. Waves
around 2 ft this evening, then 1 foot or less. Patchy fog.
Showers likely with isolated tstms this evening. Vsby 1 NM or
less.
.SUN...N winds 5 to 10 kt, becoming E in the afternoon. Waves
1 foot or less. Patchy fog in the morning with vsby 1 to 3 NM.
.SUN NIGHT...NE winds 5 to 10 kt. Waves 1 foot or less.
.MON...E winds around 10 kt. Waves 1 foot or less, then around
2 ft in the afternoon. A chance of showers in the morning.
.MON NIGHT...E winds 5 to 10 kt. Waves around 2 ft in the
evening, then 1 foot or less.
.TUE AND TUE NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less.
Showers likely through the night. A chance of showers after
midnight.
.WED THROUGH THU NIGHT...W winds 10 to 15 kt with gusts up to
20 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.

$$

ANZ236-080900-
Narragansett Bay-
404 PM EDT Sat Jun 7 2025

.TONIGHT...N winds around 5 kt. Waves 2 to 3 ft. Patchy fog.
Showers likely with isolated tstms this evening. Vsby 1 to 3 NM.
.SUN...NE winds 5 to 10 kt. Waves 2 to 3 ft. Patchy fog in the
morning with vsby 1 to 3 NM.
.SUN NIGHT...NE winds 5 to 10 kt. Waves 2 to 3 ft. A chance of
showers after midnight.
.MON...E winds around 10 kt. Waves 2 to 3 ft.
.MON NIGHT...E winds 5 to 10 kt. Waves 2 to 3 ft.
.TUE AND TUE NIGHT...W winds 5 to 10 kt. Waves 2 to 3 ft. A
chance of showers in the morning, then showers likely through the
night. A chance of showers after midnight.
.WED THROUGH THU NIGHT...W winds 10 to 15 kt with gusts up to
20 kt. Waves 2 to 4 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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