Coastal Waters Forecast
Issued by NWS Boston, MA

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045
FZUS51 KBOX 280804
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
404 AM EDT Fri Mar 28 2025

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

ANZ200-282100-
404 AM EDT Fri Mar 28 2025

.Synopsis for Massachusetts and Rhode Island coastal waters...
Today, high pressure moves offshore, a stationary boundary develops
this evening into Saturday, extending from west to east from Albany,
NY to Provincetown, MA. This provides unsettled weather tonight
through this coming weekend. Early Monday a strong cold front
approaches from the west, crossing the waters Monday evening, then
exits east the waters early Tuesday morning. High pressure briefly
returns for Wednesday.

$$

ANZ250-282100-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
404 AM EDT Fri Mar 28 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

.TODAY...W winds 15 to 20 kt with gusts up to 30 kt, diminishing
to 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 2 to
4 ft. Wave Detail: W 4 ft at 4 seconds and E 2 ft at 8 seconds.
.TONIGHT...S winds 5 to 10 kt, becoming E 10 to 15 kt with gusts
up to 20 kt after midnight. Seas around 2 ft. Wave Detail: SW
2 ft at 4 seconds and SE 2 ft at 7 seconds. Showers likely after
midnight with vsby 1 to 3 NM.
.SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: NE 4 ft at 5 seconds and W 1 foot at
3 seconds. Rain likely. Patchy fog in the morning with vsby 1 NM
or less.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 4 ft. Wave Detail: NE 3 ft at 5 seconds and SE 2 ft at
10 seconds. Areas of fog. Patchy drizzle. Rain likely in the
evening, then showers likely after midnight. Vsby 1 to 3 NM.
.SUN...E winds 10 to 15 kt with gusts up to 20 kt. Seas around
3 ft. Wave Detail: NE 3 ft at 5 seconds and SE 2 ft at
10 seconds. Areas of fog. A chance of showers. Patchy drizzle.
Vsby 1 to 3 NM, decreasing to 1 NM or less in the afternoon.
.SUN NIGHT...SE winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 3 ft. Wave Detail: E 3 ft at 5 seconds and SE 2 ft at
10 seconds. A chance of showers with patchy drizzle in the
evening, then showers likely after midnight. Areas of fog in the
evening with vsby 1 NM or less.
.MON AND MON NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt.
Seas 3 to 5 ft. Showers.
.TUE AND TUE NIGHT...N winds 15 to 20 kt with gusts up to 30 kt.
Seas 4 to 6 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.

$$

ANZ251-282100-
Massachusetts Bay and Ipswich Bay-
404 AM EDT Fri Mar 28 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

.TODAY...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft. Wave Detail: W 2 ft at 3 seconds and E 1 foot at 8 seconds.
.TONIGHT...S winds around 5 kt, becoming E 10 to 15 kt after
midnight. Seas 1 foot or less. Wave Detail: W 1 foot at 3 seconds
and E 1 foot at 8 seconds. A chance of showers in the evening,
then showers likely after midnight with vsby 1 to 3 NM.
.SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: NE 3 ft at 5 seconds and E 1 foot at
8 seconds. A chance of rain in the morning, then rain likely in
the afternoon. Patchy fog in the morning with vsby 1 NM or less.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. Wave Detail: NE 3 ft at 5 seconds and S 1 foot at
9 seconds. Areas of fog. Patchy drizzle. Rain likely in the
evening, then showers likely after midnight. Vsby 1 to 3 NM.
.SUN...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: NE 3 ft at 5 seconds and S 1 foot at
9 seconds. Areas of fog. A chance of showers. Patchy drizzle.
Vsby 1 to 3 NM, decreasing to 1 NM or less in the afternoon.
.SUN NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft. Wave Detail: E 2 ft at 5 seconds and S 1 foot at
3 seconds. A chance of showers with patchy drizzle in the
evening, then showers likely after midnight. Areas of fog in the
evening with vsby 1 NM or less.
.MON AND MON NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt.
Seas 2 to 3 ft. Showers.
.TUE AND TUE NIGHT...N winds 15 to 20 kt with gusts up to 25 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.

$$

ANZ231-282100-
Cape Cod Bay-
404 AM EDT Fri Mar 28 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

.TODAY...W winds 10 to 15 kt with gusts up to 30 kt, diminishing
to 5 to 10 kt with gusts up to 20 kt this afternoon. Seas 2 to
4 ft. Wave Detail: W 2 ft at 3 seconds and E 1 foot at 7 seconds.
.TONIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail:
SW 1 foot at 3 seconds and S 1 foot at 7 seconds. A chance of
showers in the evening, then showers likely after midnight with
vsby 1 to 3 NM.
.SAT...SE winds 10 to 15 kt, becoming NE in the afternoon. Gusts
up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 8 seconds and
SW 1 foot at 3 seconds. A chance of rain. Patchy fog in the
morning with vsby 1 NM or less.
.SAT NIGHT...NE winds around 10 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and S 2 ft at
9 seconds. Areas of fog. A chance of rain with patchy drizzle in
the evening, then a chance of showers with patchy drizzle after
midnight. Vsby 1 to 3 NM.
.SUN...E winds around 10 kt with gusts up to 20 kt. Seas around
2 ft. Wave Detail: NE 2 ft at 4 seconds and S 2 ft at 9 seconds.
Areas of fog. A chance of showers. Patchy drizzle. Vsby 1 to
3 NM.
.SUN NIGHT...SE winds around 10 kt, becoming S after midnight.
Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SE 2 ft at
3 seconds and S 2 ft at 8 seconds. A chance of showers. Patchy
drizzle in the evening. Areas of fog in the evening with vsby
1 to 3 NM.
.MON AND MON NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt.
Seas 3 to 5 ft. Showers.
.TUE...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
3 ft. A chance of showers.
.TUE NIGHT...N winds 10 to 15 kt with gusts up to 25 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.

$$

ANZ254-282100-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
404 AM EDT Fri Mar 28 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

.TODAY...W winds 15 to 20 kt, diminishing to 10 to 15 kt this
afternoon. Gusts up to 30 kt. Seas 3 to 5 ft. Wave Detail: SW
4 ft at 5 seconds and SE 2 ft at 8 seconds.
.TONIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: S
2 ft at 7 seconds and W 1 foot at 4 seconds. Showers likely after
midnight with vsby 1 to 3 NM.
.SAT...S winds 10 to 15 kt, becoming N in the afternoon. Gusts up
to 20 kt. Seas 4 to 6 ft. Wave Detail: S 4 ft at 8 seconds and NE
2 ft at 4 seconds. A chance of rain. Patchy fog in the morning
with vsby 1 NM or less.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
4 to 6 ft. Wave Detail: S 5 ft at 9 seconds and NE 3 ft at
5 seconds. Areas of fog. A chance of rain with patchy drizzle in
the evening, then a chance of showers with patchy drizzle after
midnight. Vsby 1 to 3 NM.
.SUN...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: S 4 ft at 9 seconds and NE 3 ft at 5 seconds.
Areas of fog. A chance of showers with patchy drizzle in the
morning, then patchy drizzle in the afternoon. Vsby 1 to 3 NM.
.SUN NIGHT...SE winds 10 to 15 kt, becoming S after midnight.
Gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: NE 3 ft at
5 seconds and S 3 ft at 8 seconds. Patchy drizzle in the evening,
then a chance of showers after midnight. Areas of fog in the
evening with vsby 1 to 3 NM.
.MON...S winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to
6 ft. Showers likely.
.MON NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas
5 to 7 ft. Showers. Vsby 1 to 3 NM.
.TUE...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to
7 ft. A chance of showers.
.TUE NIGHT...N winds around 15 kt with gusts up to 25 kt. Seas
5 to 7 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.

$$

ANZ255-282100-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
404 AM EDT Fri Mar 28 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON...

.TODAY...W winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to
6 ft. Wave Detail: S 5 ft at 7 seconds and E 1 foot at 7 seconds.
.TONIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SW
4 ft at 7 seconds and E 1 foot at 8 seconds. A chance of showers.
Vsby 1 to 3 NM after midnight.
.SAT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to
7 ft. Wave Detail: S 6 ft at 8 seconds and E 1 foot at 8 seconds.
Patchy fog in the morning with vsby 1 to 3 NM.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
5 to 7 ft. Wave Detail: S 7 ft at 9 seconds and NE 1 foot at
3 seconds. Areas of fog. Patchy drizzle. Vsby 1 to 3 NM.
.SUN...E winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to
6 ft. Wave Detail: S 6 ft at 8 seconds and NE 2 ft at 4 seconds.
Areas of fog. Patchy drizzle. Vsby 1 to 3 NM.
.SUN NIGHT...SE winds 10 to 15 kt, becoming S 15 to 20 kt after
midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft
at 7 seconds and NE 2 ft at 5 seconds. Patchy drizzle in the
evening, then a chance of showers after midnight. Areas of fog in
the evening with vsby 1 to 3 NM.
.MON...S winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to
7 ft. A chance of showers.
.MON NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas
6 to 9 ft. Showers. Vsby 1 to 3 NM.
.TUE...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to
8 ft. A chance of showers.
.TUE NIGHT...N winds around 15 kt with gusts up to 20 kt. Seas
4 to 6 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.

$$

ANZ256-282100-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
404 AM EDT Fri Mar 28 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON...

.TODAY...W winds 15 to 20 kt with gusts up to 30 kt, becoming SW
10 to 15 kt with gusts up to 20 kt this afternoon. Seas 4 to
6 ft. Wave Detail: SW 5 ft at 7 seconds and E 1 foot at
7 seconds.
.TONIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SW
4 ft at 5 seconds and E 1 foot at 8 seconds. A chance of showers.
Vsby 1 to 3 NM after midnight.
.SAT...SW winds 15 to 20 kt. Seas 5 to 7 ft. Wave Detail: S 6 ft
at 8 seconds and E 1 foot at 7 seconds.
.SAT NIGHT...E winds around 15 kt, becoming NE after midnight.
Gusts up to 25 kt. Seas 5 to 7 ft. Wave Detail: S 7 ft at
9 seconds. Areas of fog. Patchy drizzle. Vsby 1 to 3 NM.
.SUN...E winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to
6 ft. Wave Detail: S 6 ft at 8 seconds and NE 2 ft at 4 seconds.
Areas of fog. Patchy drizzle. Vsby 1 to 3 NM.
.SUN NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt,
becoming S 15 to 20 kt with gusts up to 30 kt after midnight.
Seas 4 to 5 ft. Wave Detail: S 5 ft at 7 seconds and E 2 ft at
4 seconds. Patchy drizzle in the evening, then a chance of
showers after midnight. Areas of fog in the evening with vsby
1 to 3 NM.
.MON AND MON NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt.
Seas 5 to 8 ft, building to 7 to 8 ft. Showers. Vsby 1 to 3 NM.
.TUE...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to
8 ft. A chance of showers.
.TUE NIGHT...N winds 15 to 20 kt. Seas 4 to 6 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.

$$

ANZ232-282100-
Nantucket Sound-
404 AM EDT Fri Mar 28 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

.TODAY...W winds 15 to 20 kt, diminishing to 10 to 15 kt this
afternoon. Gusts up to 30 kt. Seas 2 to 4 ft. Wave Detail: SW
3 ft at 4 seconds and S 2 ft at 7 seconds.
.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 6 seconds and SW 1 foot at 3 seconds. A chance of showers
in the evening, then showers likely after midnight with vsby 1 to
3 NM.
.SAT...SW winds 10 to 15 kt, becoming NW in the afternoon. Gusts
up to 20 kt. Seas 2 to 4 ft. Wave Detail: SE 2 ft at 7 seconds
and SW 1 foot at 3 seconds. Patchy fog in the morning with vsby
1 NM or less.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. Wave Detail: NE 2 ft at 3 seconds and S 2 ft at
9 seconds. Areas of fog. A chance of rain with patchy drizzle in
the evening, then a chance of showers with patchy drizzle after
midnight. Vsby 1 to 3 NM.
.SUN...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: NE 2 ft at 3 seconds and S 2 ft at 8 seconds.
Areas of fog. Patchy drizzle. Vsby 1 to 3 NM.
.SUN NIGHT...SE winds 10 to 15 kt, becoming S after midnight.
Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at
3 seconds and S 2 ft at 8 seconds. A chance of showers. Patchy
drizzle in the evening. Areas of fog in the evening with vsby
1 to 3 NM.
.MON...S winds 20 to 25 kt with gusts up to 30 kt. Seas 2 to
4 ft. Showers.
.MON NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas
3 to 5 ft. Showers. Vsby 1 to 3 NM.
.TUE...N winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. A chance of showers.
.TUE NIGHT...N 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.

$$

ANZ233-282100-
Vineyard Sound-
404 AM EDT Fri Mar 28 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

.TODAY...W winds 15 to 20 kt with gusts up to 30 kt, becoming SW
10 to 15 kt with gusts up to 20 kt this afternoon. Seas 2 to
4 ft. Wave Detail: SW 3 ft at 6 seconds and E 1 foot at
7 seconds.
.TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 6 seconds and E 1 foot at 8 seconds. A chance of showers
in the evening, then showers likely after midnight with vsby 1 to
3 NM.
.SAT...SW winds 10 to 15 kt, becoming W in the afternoon. Gusts
up to 20 kt. Seas 2 to 3 ft, building to 3 to 5 ft in the
afternoon. Wave Detail: SW 3 ft at 5 seconds and E 1 foot at
6 seconds, becoming S 3 ft at 8 seconds and W 1 foot at
4 seconds. Patchy fog in the morning with vsby 1 to 3 NM.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 ft. Wave Detail: S 4 ft at 8 seconds and NE 1 foot at
3 seconds. Areas of fog. Patchy drizzle. A chance of rain in the
evening, then a chance of showers after midnight. Vsby 1 to 3 NM.
.SUN...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: SW 3 ft at 8 seconds and NE 2 ft at 3 seconds.
Areas of fog. Patchy drizzle. Vsby 1 to 3 NM.
.SUN NIGHT...SE winds 10 to 15 kt, becoming S 15 to 20 kt after
midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft
at 7 seconds and E 1 foot at 3 seconds. A chance of showers.
Patchy drizzle in the evening. Areas of fog in the evening with
vsby 1 to 3 NM.
.MON AND MON NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt.
Seas 3 to 5 ft. Showers. Vsby 1 to 3 NM.
.TUE...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. A chance of showers.
.TUE NIGHT...N 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.

$$

ANZ234-282100-
Buzzards Bay-
404 AM EDT Fri Mar 28 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

.TODAY...W winds 10 to 15 kt. Gusts up to 30 kt, decreasing to
20 kt this afternoon. Seas 2 to 4 ft. Wave Detail: SW 3 ft at
6 seconds and E 1 foot at 7 seconds.
.TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 6 seconds and E 1 foot at 8 seconds. A chance of showers
in the evening, then showers likely after midnight with vsby 1 to
3 NM.
.SAT...SW winds 10 to 15 kt, becoming NW in the afternoon. Gusts
up to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 2 ft at 6 seconds
and E 1 foot at 6 seconds. Patchy fog in the morning. A chance of
rain in the afternoon. Vsby 1 NM or less in the morning.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. Wave Detail: SW 3 ft at 8 seconds and NE 1 foot at
3 seconds. Areas of fog. A chance of rain with patchy drizzle in
the evening, then a chance of showers with patchy drizzle after
midnight. Vsby 1 to 3 NM.
.SUN...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SW 3 ft at 8 seconds and NE 2 ft at 3 seconds.
Areas of fog. Patchy drizzle. Vsby 1 to 3 NM.
.SUN NIGHT...SE winds 10 to 15 kt, becoming S 15 to 20 kt after
midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 2 ft
at 3 seconds and SW 2 ft at 7 seconds. A chance of showers.
Patchy drizzle in the evening. Areas of fog in the evening with
vsby 1 to 3 NM.
.MON AND MON NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt.
Seas 3 to 5 ft. Showers.
.TUE...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. A chance of showers.
.TUE NIGHT...N 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.

$$

ANZ235-282100-
Rhode Island Sound-
404 AM EDT Fri Mar 28 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

.TODAY...W winds 15 to 20 kt with gusts up to 30 kt, becoming SW
10 to 15 kt with gusts up to 20 kt this afternoon. Seas 2 to
4 ft. Wave Detail: S 4 ft at 6 seconds and E 1 foot at 7 seconds.
.TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW
3 ft at 5 seconds and E 1 foot at 8 seconds. A chance of showers
in the evening, then showers likely after midnight with vsby 1 to
3 NM.
.SAT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft, building to 4 to 6 ft in the afternoon. Wave Detail: SW
4 ft at 5 seconds and E 1 foot at 6 seconds, becoming S 5 ft at
8 seconds and NE 1 foot at 4 seconds. Patchy fog in the morning
with vsby 1 to 3 NM.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
4 to 6 ft. Wave Detail: S 6 ft at 9 seconds and NE 2 ft at
3 seconds. Areas of fog. Patchy drizzle. A chance of rain in the
evening, then a chance of showers after midnight. Vsby 1 to 3 NM.
.SUN...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: S 5 ft at 8 seconds and E 2 ft at 3 seconds.
Areas of fog. Patchy drizzle. Vsby 1 to 3 NM.
.SUN NIGHT...SE winds 10 to 15 kt, becoming S 15 to 20 kt after
midnight. Gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft
at 7 seconds and E 2 ft at 4 seconds. A chance of showers. Patchy
drizzle in the evening. Areas of fog in the evening with vsby
1 to 3 NM.
.MON...S winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to
6 ft. Showers.
.MON NIGHT...SW winds 20 to 25 kt with gusts up to 30 kt. Seas
5 to 7 ft. Showers. Vsby 1 to 3 NM.
.TUE...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. A chance of showers.
.TUE NIGHT...N winds around 15 kt with gusts up to 20 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.

$$

ANZ237-282100-
Block Island Sound-
404 AM EDT Fri Mar 28 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

.TODAY...W winds 15 to 20 kt with gusts up to 30 kt, becoming SW
10 to 15 kt with gusts up to 20 kt this afternoon. Seas 2 to
4 ft. Wave Detail: W 3 ft at 4 seconds and S 2 ft at 7 seconds.
.TONIGHT...SW winds around 10 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 6 seconds and W 1 foot at 3 seconds. A chance of showers
in the evening, then showers likely after midnight with vsby 1 to
3 NM.
.SAT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: S 4 ft at 8 seconds and SW 1 foot at
3 seconds.
.SAT NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas
4 to 6 ft. Wave Detail: S 6 ft at 9 seconds and NE 1 foot at
3 seconds. Areas of fog. A chance of showers with patchy drizzle
in the evening, then patchy drizzle after midnight. Vsby 1 to
3 NM.
.SUN...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: S 5 ft at 8 seconds and E 2 ft at 3 seconds.
Patchy drizzle. Areas of fog in the morning with vsby 1 to 3 NM.
.SUN NIGHT...SE winds around 10 kt, becoming S after midnight.
Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at
8 seconds and E 2 ft at 4 seconds. A chance of showers. Patchy
drizzle in the evening. Areas of fog in the evening with vsby
1 to 3 NM.
.MON AND MON NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt.
Seas 4 to 6 ft. Showers. Vsby 1 to 3 NM.
.TUE...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to
6 ft.
.TUE NIGHT...N winds 10 to 15 kt with gusts up to 20 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.

$$

ANZ230-282100-
Boston Harbor-
404 AM EDT Fri Mar 28 2025

.TODAY...W winds 10 to 15 kt with gusts up to 25 kt. Waves around
2 ft.
.TONIGHT...SW winds around 5 kt, becoming E after midnight. Waves
1 foot or less. A chance of showers in the evening, then showers
after midnight with vsby 1 to 3 NM.
.SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to
3 ft. A chance of rain in the morning, then rain likely in the
afternoon. Patchy fog in the morning with vsby 1 NM or less.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Waves
2 to 3 ft. Areas of fog. Patchy drizzle. Rain likely in the
evening, then showers likely after midnight. Vsby 1 to 3 NM.
.SUN...E winds around 10 kt with gusts up to 20 kt. Waves around
2 ft. Areas of fog. A chance of showers. Patchy drizzle. Vsby
1 to 3 NM.
.SUN NIGHT...E winds around 10 kt, becoming SE after midnight.
Gusts up to 20 kt. Waves around 2 ft. A chance of showers with
patchy drizzle in the evening, then showers likely after
midnight. Areas of fog in the evening with vsby 1 to 3 NM.
.MON AND MON NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt.
Waves around 2 ft. Showers.
.TUE AND TUE NIGHT...NW winds 15 to 20 kt, becoming N 10 to
15 kt. Gusts up to 25 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.

$$

ANZ236-282100-
Narragansett Bay-
404 AM EDT Fri Mar 28 2025

.TODAY...W winds 10 to 15 kt, diminishing to 5 to 10 kt this
afternoon. Gusts up to 25 kt. Waves 2 to 3 ft.
.TONIGHT...S winds 5 to 10 kt. Waves around 2 ft. A chance of
showers in the evening, then showers likely after midnight with
vsby 1 to 3 NM.
.SAT...W winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Waves 2 to 4 ft. Patchy fog in the morning. A chance of rain in
the afternoon. Vsby 1 to 3 NM in the morning.
.SAT NIGHT...NE winds around 10 kt with gusts up to 20 kt. Waves
2 to 4 ft. Areas of fog. A chance of rain with patchy drizzle in
the evening, then a chance of showers with patchy drizzle after
midnight. Vsby 1 to 3 NM.
.SUN...E winds around 10 kt with gusts up to 20 kt. Waves 2 to
3 ft. Areas of fog. Patchy drizzle. Vsby 1 to 3 NM.
.SUN NIGHT...SE winds around 10 kt, becoming S after midnight.
Gusts up to 25 kt. Waves 2 to 3 ft. A chance of showers. Patchy
drizzle in the evening. Areas of fog in the evening with vsby
1 to 3 NM.
.MON AND MON NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt.
Waves 2 to 4 ft. Showers.
.TUE AND TUE NIGHT...N winds 10 to 15 kt with gusts up to 25 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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