Coastal Waters Forecast
Issued by NWS Boston, MA

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705
FZUS51 KBOX 281703
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
103 PM EDT Sat Sep 28 2024

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

ANZ200-290600-
103 PM EDT Sat Sep 28 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pressure over Quebec will build over New England through the
weekend. Weakening low pressure is expected to pass offshore south
of New England Tue and Wed.

$$

ANZ250-290600-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
103 PM EDT Sat Sep 28 2024

.THIS AFTERNOON...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: E 3 ft at 10 seconds and E 1 foot at 3 seconds.
.TONIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 9 seconds and E 1 foot at 3 seconds. Patchy fog in the
evening with vsby 1 to 3 NM.
.SUN...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE
2 ft at 4 seconds and E 2 ft at 9 seconds.
.SUN NIGHT...SE winds around 5 kt, becoming SW around 5 kt after
midnight. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and
E 1 foot at 4 seconds.
.MON AND MON NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: E 3 ft at 10 seconds and SE 1 foot at 4 seconds.
.TUE...E winds around 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft
at 11 seconds and E 3 ft at 5 seconds.
.TUE NIGHT THROUGH WED NIGHT...NE winds 10 to 15 kt with gusts up
to 20 kt. Seas 4 to 6 ft. A chance of showers.

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.

$$

ANZ251-290600-
Massachusetts Bay and Ipswich Bay-
103 PM EDT Sat Sep 28 2024

.THIS AFTERNOON...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: E 3 ft at 10 seconds and E 1 foot at 3 seconds.
.TONIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E
2 ft at 9 seconds and E 1 foot at 3 seconds. Patchy fog in the
evening with vsby 1 to 3 NM.
.SUN...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft
at 9 seconds and NE 1 foot at 4 seconds.
.SUN NIGHT...SE winds around 5 kt, becoming SW around 5 kt after
midnight. Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and
E 1 foot at 4 seconds. Patchy fog after midnight.
.MON AND MON NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: E 2 ft at 9 seconds.
.TUE...E winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft at
10 seconds and E 2 ft at 3 seconds.
.TUE NIGHT THROUGH WED NIGHT...N winds 10 to 15 kt with gusts up
to 20 kt. Seas 3 to 4 ft. A chance of showers.

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.

$$

ANZ231-290600-
Cape Cod Bay-
103 PM EDT Sat Sep 28 2024

.THIS AFTERNOON...NE winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: E 2 ft at 10 seconds and E 1 foot at 2 seconds.
.TONIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E
2 ft at 10 seconds and E 1 foot at 2 seconds. Patchy fog in the
evening with vsby 1 to 3 NM.
.SUN...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE
1 foot at 2 seconds and E 1 foot at 9 seconds.
.SUN NIGHT...E winds around 5 kt. Seas 1 foot or less. Wave
Detail: E 1 foot at 3 seconds and E 1 foot at 9 seconds. Patchy
fog.
.MON AND MON NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: E 2 ft at 9 seconds and E 1 foot at 3 seconds.
.TUE...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at
11 seconds and E 1 foot at 2 seconds.
.TUE NIGHT THROUGH WED NIGHT...N winds 10 to 15 kt with gusts up
to 20 kt. Seas 2 to 4 ft. A chance of showers.

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.

$$

ANZ254-290600-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
103 PM EDT Sat Sep 28 2024

.THIS AFTERNOON...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: E 3 ft at 10 seconds and S 1 foot at 4 seconds.
.TONIGHT...NE winds around 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 9 seconds and E 2 ft at 4 seconds. Patchy fog in the
evening with vsby 1 NM or less.
.SUN...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft
at 9 seconds and NE 2 ft at 5 seconds. Patchy fog in the
afternoon with vsby 1 to 3 NM.
.SUN NIGHT...E winds around 5 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 9 seconds and S 2 ft at 8 seconds. Patchy fog. Vsby 1 NM
or less, increasing to 1 to 3 NM after midnight.
.MON AND MON NIGHT...E winds 5 to 10 kt. Seas 2 to 4 ft. Wave
Detail: E 3 ft at 9 seconds and S 1 foot at 8 seconds.
.TUE...E winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: E 4 ft
at 11 seconds and SE 3 ft at 6 seconds.
.TUE NIGHT THROUGH WED NIGHT...NE winds 10 to 15 kt with gusts up
to 20 kt. Seas 4 to 6 ft. A chance of showers.

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.

$$

ANZ255-290600-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
103 PM EDT Sat Sep 28 2024

.THIS AFTERNOON...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: E 3 ft at 10 seconds and SE 2 ft at 5 seconds. Isolated
showers.
.TONIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: E
3 ft at 4 seconds and E 2 ft at 10 seconds. Patchy fog. Vsby 1 NM
or less, increasing to 1 to 3 NM after midnight.
.SUN...E winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft
at 6 seconds and SE 3 ft at 9 seconds. Patchy fog in the
afternoon with vsby 1 to 3 NM.
.SUN NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 9 seconds. Patchy fog. Vsby 1 NM or less, increasing to
1 to 3 NM after midnight.
.MON AND MON NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. Wave
Detail: E 3 ft at 10 seconds and S 2 ft at 8 seconds.
.TUE...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: SE 4 ft at 6 seconds and E 3 ft at 11 seconds.
.TUE NIGHT THROUGH WED NIGHT...N winds 10 to 15 kt with gusts up
to 20 kt. Seas 4 to 6 ft. A chance of showers.

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.

$$

ANZ256-290600-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
103 PM EDT Sat Sep 28 2024

.THIS AFTERNOON...E winds 10 to 15 kt with gusts up to 25 kt.
Seas 3 to 4 ft. Wave Detail: SE 3 ft at 4 seconds and E 3 ft at
10 seconds. Isolated showers.
.TONIGHT...E winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to
4 ft. Wave Detail: E 4 ft at 6 seconds and E 3 ft at 10 seconds.
.SUN...E winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft
at 6 seconds and E 2 ft at 9 seconds.
.SUN NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 6 seconds and E 2 ft at 9 seconds.
.MON AND MON NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. Wave
Detail: SE 3 ft at 6 seconds and E 2 ft at 9 seconds.
.TUE...E winds 15 to 20 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft
at 11 seconds and SE 4 ft at 7 seconds.
.TUE NIGHT THROUGH WED NIGHT...N winds 15 to 20 kt. Seas 4 to
6 ft. A chance of showers.

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.

$$

ANZ232-290600-
Nantucket Sound-
103 PM EDT Sat Sep 28 2024

.THIS AFTERNOON...E winds around 10 kt. Seas around 2 ft. Wave
Detail: E 2 ft at 10 seconds and SE 1 foot at 4 seconds.
.TONIGHT...NE winds 10 to 15 kt. Seas around 2 ft. Wave Detail: E
2 ft at 3 seconds and E 1 foot at 10 seconds. Patchy fog in the
evening with vsby 1 NM or less.
.SUN...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft
at 4 seconds and E 1 foot at 9 seconds.
.SUN NIGHT...E winds 5 to 10 kt. Seas around 2 ft in the evening,
then 1 foot or less. Wave Detail: E 1 foot at 5 seconds and E
1 foot at 9 seconds, becoming SE 1 foot at 6 seconds and E 1 foot
at 9 seconds. Patchy fog. Vsby 1 to 3 NM.
.MON AND MON NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SE 1 foot at 6 seconds and E 1 foot at 9 seconds.
.TUE...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: E 2 ft at 3 seconds and E 1 foot at
11 seconds.
.TUE NIGHT THROUGH WED NIGHT...N winds around 15 kt with gusts up
to 20 kt. Seas 3 to 4 ft. A chance of showers.

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.

$$

ANZ233-290600-
Vineyard Sound-
103 PM EDT Sat Sep 28 2024

.THIS AFTERNOON...E winds around 10 kt. Seas around 2 ft. Wave
Detail: E 1 foot at 4 seconds and SE 1 foot at 10 seconds.
.TONIGHT...E winds 10 to 15 kt. Seas around 2 ft. Wave Detail: E
2 ft at 5 seconds and SE 1 foot at 10 seconds. Patchy fog in the
evening with vsby 1 to 3 NM.
.SUN...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft
at 5 seconds and SE 1 foot at 9 seconds.
.SUN NIGHT...E winds 5 to 10 kt. Seas around 2 ft in the evening,
then 1 foot or less. Wave Detail: E 1 foot at 5 seconds and SE
1 foot at 9 seconds, becoming SE 1 foot at 8 seconds. Patchy fog.
.MON AND MON NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SE 1 foot at 7 seconds and E 1 foot at 9 seconds.
.TUE...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: E 2 ft at 4 seconds and E 1 foot at
12 seconds.
.TUE NIGHT THROUGH WED NIGHT...N winds 10 to 15 kt with gusts up
to 20 kt. Seas 2 to 3 ft. A chance of showers.

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.

$$

ANZ234-290600-
Buzzards Bay-
103 PM EDT Sat Sep 28 2024

.THIS AFTERNOON...E winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: E 1 foot at 3 seconds and E 1 foot at 10 seconds.
.TONIGHT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E
1 foot at 3 seconds and SE 1 foot at 10 seconds.
.SUN...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE
1 foot at 4 seconds and SE 1 foot at 9 seconds.
.SUN NIGHT...E winds 5 to 10 kt, becoming NE after midnight. Seas
around 2 ft in the evening, then 1 foot or less. Wave Detail: E
1 foot at 5 seconds and SE 1 foot at 9 seconds, becoming E 1 foot
at 6 seconds and E 1 foot at 9 seconds. Patchy fog.
.MON AND MON NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SE 1 foot at 6 seconds and E 1 foot at 9 seconds.
.TUE...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: E 2 ft at 3 seconds and E 1 foot at
11 seconds.
.TUE NIGHT THROUGH WED NIGHT...N winds 10 to 15 kt with gusts up
to 20 kt. Seas 2 to 3 ft. A chance of showers.

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.

$$

ANZ235-290600-
Rhode Island Sound-
103 PM EDT Sat Sep 28 2024

.THIS AFTERNOON...E winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: SE 2 ft at 4 seconds and SE 2 ft at
10 seconds. Isolated showers.
.TONIGHT...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 5 seconds and SE 2 ft at
10 seconds.
.SUN...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft
at 6 seconds and SE 1 foot at 9 seconds.
.SUN NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 6 seconds and SE 1 foot at 9 seconds.
.MON AND MON NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: SE 2 ft at 6 seconds and SE 1 foot at 9 seconds.
.TUE...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: E 4 ft at 7 seconds and E 1 foot at
12 seconds.
.TUE NIGHT THROUGH WED NIGHT...N winds 10 to 15 kt with gusts up
to 20 kt. Seas 3 to 4 ft. A chance of showers.

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.

$$

ANZ237-290600-
Block Island Sound-
103 PM EDT Sat Sep 28 2024

.THIS AFTERNOON...E winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: E 3 ft at 4 seconds and SE 2 ft at
10 seconds. Isolated showers.
.TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: E 3 ft at 5 seconds and SE 2 ft at 10 seconds.
.SUN...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft
at 6 seconds and SE 1 foot at 9 seconds.
.SUN NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 6 seconds and SE 1 foot at 9 seconds.
.MON AND MON NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: E 2 ft at 6 seconds and SE 1 foot at 9 seconds.
.TUE...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Wave Detail: E 4 ft at 6 seconds and E 1 foot at
11 seconds.
.TUE NIGHT THROUGH WED NIGHT...N winds 10 to 15 kt with gusts up
to 20 kt. Seas 3 to 4 ft. A chance of showers.

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.

$$

ANZ230-290600-
Boston Harbor-
103 PM EDT Sat Sep 28 2024

.THIS AFTERNOON...E winds around 10 kt. Waves 1 foot or less.
.TONIGHT...E winds 5 to 10 kt. Waves 1 foot or less. Patchy fog
in the evening with vsby 1 to 3 NM.
.SUN...NE winds 5 to 10 kt. Waves 1 foot or less.
.SUN NIGHT...SE winds around 5 kt, becoming SW around 5 kt after
midnight. Waves 1 foot or less. Patchy fog after midnight.
.MON AND MON NIGHT...E winds 5 to 10 kt. Waves 1 foot or less.
.TUE...E winds 5 to 10 kt. Waves 2 to 3 ft.
.TUE NIGHT THROUGH WED NIGHT...N winds 10 to 15 kt. Waves 2 to
3 ft. A chance of showers.

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.

$$

ANZ236-290600-
Narragansett Bay-
103 PM EDT Sat Sep 28 2024

.THIS AFTERNOON...E winds 5 to 10 kt. Waves around 2 ft. Isolated
showers.
.TONIGHT...NE winds 5 to 10 kt. Waves 2 to 3 ft.
.SUN...NE winds 5 to 10 kt. Waves 2 to 3 ft.
.SUN NIGHT...NE winds around 5 kt. Waves around 2 ft. Patchy fog
after midnight.
.MON AND MON NIGHT...E winds 5 to 10 kt. Waves 2 to 3 ft.
.TUE...E winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to
3 ft.
.TUE NIGHT THROUGH WED NIGHT...N winds 10 to 15 kt. Waves 2 to
3 ft. A chance of showers.

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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