944
FZUS51 KBOX 231404
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1004 AM EDT Mon Sep 23 2024

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

ANZ200-240300-
1004 AM EDT Mon Sep 23 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pres over ern Canada will build over the waters through Tue,
then move past the Maritimes Wed. A pair of fronts is expected to
approach Thu, and cross the waters Thu night. This will be our next
chance for unsettled weather.

$$

ANZ250-240300-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1004 AM EDT Mon Sep 23 2024

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

.THIS AFTERNOON...NE winds around 15 kt with gusts up to 20 kt.
Seas 7 to 9 ft. Wave Detail: E 8 ft at 10 seconds and NE 1 foot
at 3 seconds. A chance of sprinkles.
.TONIGHT...NE winds around 15 kt with gusts up to 25 kt. Seas
6 to 8 ft. Wave Detail: E 8 ft at 10 seconds and NE 1 foot at
3 seconds.
.TUE...NE winds around 15 kt with gusts up to 20 kt. Seas 6 to
7 ft. Wave Detail: E 7 ft at 10 seconds.
.TUE NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 5 to 7 ft. Wave Detail: E 6 ft at 10 seconds and E
1 foot at 2 seconds.
.WED...E winds around 10 kt. Seas 5 to 6 ft. Wave Detail: E 5 ft
at 10 seconds.
.WED NIGHT...SE winds 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: E
6 ft at 11 seconds. A chance of showers after midnight.
.THU AND THU NIGHT...S winds around 10 kt, becoming W. Seas 4 to
6 ft. A chance of showers.
.FRI AND FRI NIGHT...N winds 10 to 15 kt. 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.

$$

ANZ251-240300-
Massachusetts Bay and Ipswich Bay-
1004 AM EDT Mon Sep 23 2024

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

.THIS AFTERNOON...NE winds around 15 kt with gusts up to 20 kt.
Seas 6 to 7 ft. Wave Detail: E 7 ft at 10 seconds and NE 1 foot
at 3 seconds. A chance of sprinkles.
.TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to
7 ft. Wave Detail: E 7 ft at 10 seconds and NE 1 foot at
3 seconds.
.TUE...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to
6 ft. Wave Detail: E 6 ft at 10 seconds and NE 1 foot at
3 seconds.
.TUE NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 4 to 6 ft. Wave Detail: E 6 ft at 10 seconds and NE
1 foot at 3 seconds.
.WED...E winds around 10 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft
at 9 seconds.
.WED NIGHT...SE winds 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: E
5 ft at 12 seconds. A chance of showers after midnight.
.THU AND THU NIGHT...S winds 5 to 10 kt, becoming W. Seas 3 to
5 ft. A chance of showers.
.FRI AND FRI NIGHT...N winds 10 to 15 kt. 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.

$$

ANZ231-240300-
Cape Cod Bay-
1004 AM EDT Mon Sep 23 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...NE winds around 15 kt with gusts up to 20 kt.
Seas 4 to 6 ft. Wave Detail: E 5 ft at 10 seconds and NE 2 ft at
4 seconds. A chance of sprinkles.
.TONIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to
5 ft. Wave Detail: E 5 ft at 10 seconds and NE 2 ft at 4 seconds.
.TUE...NE winds around 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Wave Detail: E 4 ft at 10 seconds and NE 2 ft at 4 seconds.
.TUE NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 3 to 4 ft. Wave Detail: E 4 ft at 10 seconds and NE
2 ft at 4 seconds.
.WED...E winds around 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft
at 10 seconds and E 1 foot at 3 seconds.
.WED NIGHT...SE winds 5 to 10 kt. Seas around 3 ft. Wave Detail:
E 3 ft at 10 seconds and E 1 foot at 2 seconds. A chance of
showers after midnight.
.THU AND THU NIGHT...S winds 5 to 10 kt, becoming W. Seas 2 to
4 ft. A chance of showers.
.FRI AND FRI NIGHT...N winds 10 to 15 kt. 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.

$$

ANZ254-240300-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1004 AM EDT Mon Sep 23 2024

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

.THIS AFTERNOON...NE winds 15 to 20 kt with gusts up to 25 kt.
Seas 8 to 10 ft. Wave Detail: E 10 ft at 10 seconds and NE 1 foot
at 3 seconds. A chance of sprinkles.
.TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 7 to
9 ft. Wave Detail: E 9 ft at 10 seconds and NE 1 foot at
3 seconds.
.TUE...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to
8 ft. Wave Detail: E 7 ft at 10 seconds and NE 1 foot at
3 seconds.
.TUE NIGHT...E winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Seas 6 to 7 ft. Wave Detail: E 7 ft at 10 seconds
and NE 1 foot at 3 seconds.
.WED...E winds around 10 kt. Seas 5 to 7 ft. Wave Detail: E 6 ft
at 10 seconds.
.WED NIGHT...SE winds 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: E
6 ft at 12 seconds. A chance of showers after midnight.
.THU AND THU NIGHT...SE winds 5 to 10 kt, becoming W. Seas 4 to
6 ft. A chance of showers.
.FRI...N winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to
5 ft.
.FRI NIGHT...N winds 10 to 15 kt with gusts up to 20 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.

$$

ANZ255-240300-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1004 AM EDT Mon Sep 23 2024

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

.THIS AFTERNOON...NE winds around 20 kt with gusts up to 25 kt.
Seas 6 to 9 ft. Wave Detail: E 8 ft at 10 seconds and NE 2 ft at
4 seconds.
.TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to
8 ft. Wave Detail: E 8 ft at 10 seconds and NE 2 ft at 4 seconds.
.TUE...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to
7 ft. Wave Detail: E 7 ft at 10 seconds and NE 2 ft at 4 seconds.
.TUE NIGHT...NE winds 15 to 20 kt, becoming E 10 to 15 kt after
midnight. Seas 5 to 7 ft. Wave Detail: E 6 ft at 10 seconds and
NE 2 ft at 4 seconds.
.WED AND WED NIGHT...SE winds 10 to 15 kt. Seas 4 to 6 ft. Wave
Detail: E 5 ft at 10 seconds and NE 1 foot at 3 seconds.
.THU...SE winds 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: E 5 ft
at 12 seconds. A chance of showers.
.THU NIGHT...W winds around 10 kt. Seas 3 to 5 ft. A chance of
showers.
.FRI AND FRI NIGHT...N winds 10 to 15 kt. 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.

$$

ANZ256-240300-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1004 AM EDT Mon Sep 23 2024

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

.THIS AFTERNOON...NE winds 15 to 20 kt with gusts up to 25 kt.
Seas 5 to 7 ft. Wave Detail: E 7 ft at 10 seconds and NE 1 foot
at 4 seconds.
.TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to
7 ft. Wave Detail: E 7 ft at 11 seconds and NE 2 ft at 4 seconds.
.TUE...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to
6 ft. Wave Detail: E 6 ft at 10 seconds and NE 1 foot at
4 seconds.
.TUE NIGHT...NE winds 15 to 20 kt, becoming E 10 to 15 kt after
midnight. Seas 4 to 6 ft. Wave Detail: E 6 ft at 10 seconds and
NE 1 foot at 3 seconds.
.WED...E winds 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft
at 10 seconds.
.WED NIGHT...E winds around 10 kt. Seas 4 to 5 ft. Wave Detail: E
5 ft at 10 seconds. A chance of showers after midnight.
.THU AND THU NIGHT...S winds around 10 kt, becoming W. Seas 3 to
5 ft. A chance of showers.
.FRI AND FRI NIGHT...N winds 10 to 15 kt. 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.

$$

ANZ232-240300-
Nantucket Sound-
1004 AM EDT Mon Sep 23 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...NE winds 15 to 20 kt with gusts up to 25 kt.
Seas 4 to 6 ft. Wave Detail: E 5 ft at 11 seconds and NE 2 ft at
4 seconds. A chance of sprinkles.
.TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. Wave Detail: E 5 ft at 11 seconds and NE 2 ft at 4 seconds.
.TUE...NE winds around 15 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: E 4 ft at 10 seconds and NE 2 ft at 4 seconds.
.TUE NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 3 to 5 ft. Wave Detail: E 4 ft at 10 seconds and E
2 ft at 4 seconds.
.WED...E winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft
at 10 seconds and E 2 ft at 3 seconds.
.WED NIGHT...SE winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: E
3 ft at 11 seconds and E 2 ft at 3 seconds. A chance of showers
after midnight.
.THU AND THU NIGHT...S winds 5 to 10 kt, becoming W. Seas 2 to
4 ft. A chance of showers.
.FRI AND FRI 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.

$$

ANZ233-240300-
Vineyard Sound-
1004 AM EDT Mon Sep 23 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...NE winds around 15 kt with gusts up to 20 kt.
Seas 3 to 4 ft. Wave Detail: E 3 ft at 10 seconds and NE 2 ft at
3 seconds. A chance of sprinkles.
.TONIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: E 3 ft at 10 seconds and NE 2 ft at 3 seconds.
.TUE...NE winds around 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: NE 2 ft at 3 seconds and E 2 ft at 10 seconds.
.TUE NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds and E
2 ft at 10 seconds.
.WED...E winds around 10 kt. Seas around 2 ft. Wave Detail: E
2 ft at 10 seconds and E 1 foot at 3 seconds.
.WED NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 10 seconds and E 1 foot at 2 seconds. A chance of
showers after midnight.
.THU AND THU NIGHT...S winds 5 to 10 kt, becoming W. Seas around
2 ft. A chance of showers.
.FRI AND FRI NIGHT...N winds 10 to 15 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.

$$

ANZ234-240300-
Buzzards Bay-
1004 AM EDT Mon Sep 23 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...NE winds around 15 kt with gusts up to 20 kt.
Seas 3 to 4 ft. Wave Detail: E 3 ft at 10 seconds and NE 2 ft at
3 seconds. A chance of sprinkles.
.TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: E 3 ft at 11 seconds and NE 2 ft at 3 seconds.
.TUE...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: E 3 ft at 10 seconds and NE 2 ft at 3 seconds.
.TUE NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 4 ft. Wave Detail: E 3 ft at 10 seconds and NE
1 foot at 3 seconds.
.WED...E winds around 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft
at 10 seconds and E 1 foot at 3 seconds.
.WED NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 10 seconds and E 1 foot at 2 seconds. A chance of showers
after midnight.
.THU AND THU NIGHT...S winds 5 to 10 kt, becoming W. Seas 2 to
3 ft. A chance of showers.
.FRI AND FRI NIGHT...N winds 10 to 15 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.

$$

ANZ235-240300-
Rhode Island Sound-
1004 AM EDT Mon Sep 23 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...NE winds around 15 kt with gusts up to 20 kt.
Seas 4 to 5 ft. Wave Detail: E 4 ft at 11 seconds and NE 2 ft at
4 seconds. A chance of sprinkles.
.TONIGHT...NE winds around 15 kt with gusts up to 20 kt. Seas
3 to 5 ft. Wave Detail: E 4 ft at 11 seconds and NE 2 ft at
4 seconds.
.TUE...NE winds around 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Wave Detail: E 4 ft at 11 seconds and NE 2 ft at 3 seconds.
.TUE NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 3 to 4 ft. Wave Detail: E 4 ft at 10 seconds and NE
2 ft at 4 seconds.
.WED...E winds around 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft
at 10 seconds and NE 1 foot at 3 seconds.
.WED NIGHT...E winds 5 to 10 kt. Seas around 3 ft. Wave Detail:
SE 3 ft at 10 seconds and E 1 foot at 3 seconds. A chance of
showers after midnight.
.THU AND THU NIGHT...S winds 5 to 10 kt, becoming W. Seas 2 to
3 ft. A chance of showers.
.FRI AND FRI NIGHT...N 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.

$$

ANZ237-240300-
Block Island Sound-
1004 AM EDT Mon Sep 23 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...NE winds around 15 kt with gusts up to 20 kt.
Seas 4 to 5 ft. Wave Detail: E 5 ft at 11 seconds and NE 2 ft at
4 seconds.
.TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: E 5 ft at 11 seconds and NE 2 ft at 4 seconds.
.TUE...NE winds around 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Wave Detail: E 4 ft at 11 seconds and NE 1 foot at
4 seconds.
.TUE NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 3 to 4 ft. Wave Detail: E 4 ft at 10 seconds and NE
1 foot at 4 seconds.
.WED...E winds around 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft
at 10 seconds and NE 1 foot at 3 seconds.
.WED NIGHT...E winds 5 to 10 kt. Seas around 3 ft. Wave Detail: E
3 ft at 10 seconds. A chance of showers.
.THU AND THU NIGHT...S winds 5 to 10 kt, becoming W. Seas 2 to
3 ft. A chance of showers.
.FRI AND FRI NIGHT...N 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.

$$

ANZ230-240300-
Boston Harbor-
1004 AM EDT Mon Sep 23 2024

.THIS AFTERNOON...NE winds 10 to 15 kt with gusts up to 20 kt.
Waves 2 to 3 ft, except 4 to 6 ft at the outer harbor entrance. A
chance of sprinkles.
.TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Waves
2 to 3 ft, except 4 to 6 ft at the outer harbor entrance.
.TUE...NE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to
3 ft.
.TUE NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Waves 2 to 3 ft in the evening, then 1 foot or less. At
the outer harbor entrance, waves 2 to 4 ft.
.WED...E winds 5 to 10 kt. Waves 1 foot or less, except 2 to 4 ft
at the outer harbor entrance.
.WED NIGHT...SE winds 5 to 10 kt. Waves 1 foot or less, except
2 to 4 ft at the outer harbor entrance. A chance of showers.
.THU AND THU NIGHT...S winds 5 to 10 kt, becoming W. Waves 1 foot
or less, except 2 to 4 ft at the outer harbor entrance. A chance
of showers.
.FRI AND FRI NIGHT...N winds around 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.

$$

ANZ236-240300-
Narragansett Bay-
1004 AM EDT Mon Sep 23 2024

.THIS AFTERNOON...NE winds 10 to 15 kt with gusts up to 20 kt.
Waves 2 to 3 ft. A chance of sprinkles.
.TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Waves
2 to 3 ft.
.TUE...NE winds around 10 kt with gusts up to 20 kt. Waves 2 to
3 ft.
.TUE NIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Waves 2 to 3 ft.
.WED...E winds 5 to 10 kt. Waves 2 to 3 ft.
.WED NIGHT...SE winds 5 to 10 kt. Waves 2 to 3 ft. A chance of
showers.
.THU AND THU NIGHT...S winds 5 to 10 kt, becoming W. Waves 2 to
3 ft. A chance of showers.
.FRI AND FRI NIGHT...N 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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