791
FZUS51 KBOX 241404
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1004 AM EDT Tue Sep 24 2024

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

ANZ200-250300-
1004 AM EDT Tue Sep 24 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pressure will keep E onshore flow through Wed. Low pressure will
bring showers Wed night through Thur. High pres builds back in for
Fri into the weekend.

$$

ANZ250-250300-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1004 AM EDT Tue Sep 24 2024

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

.THIS AFTERNOON...E winds 10 to 15 kt. Gusts up to 20 kt. Seas
6 to 7 ft. Wave Detail: E 6 ft at 10 seconds. A chance of
sprinkles.
.TONIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: E
6 ft at 10 seconds. A chance of sprinkles in the evening.
.WED...E winds 10 to 15 kt. Seas 5 to 6 ft. Wave Detail: E 6 ft
at 10 seconds. Patchy fog in the morning with vsby 1 NM or less.
.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...S winds 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: E 6 ft at
12 seconds. A chance of showers.
.THU NIGHT...SW winds around 10 kt, becoming NW after midnight.
Seas 4 to 6 ft. Wave Detail: E 6 ft at 11 seconds. A chance of
showers.
.FRI THROUGH SAT NIGHT...NE winds 10 to 15 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.

$$

ANZ251-250300-
Massachusetts Bay and Ipswich Bay-
1004 AM EDT Tue Sep 24 2024

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

.THIS AFTERNOON...NE winds 10 to 15 kt. Seas 5 to 6 ft. Wave
Detail: E 6 ft at 10 seconds and NE 1 foot at 3 seconds. A chance
of sprinkles.
.TONIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: E
6 ft at 10 seconds and E 1 foot at 3 seconds. A chance of
sprinkles in the evening. Patchy fog after midnight.
.WED...E winds around 10 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft
at 10 seconds.
.WED NIGHT...SE winds 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: E
5 ft at 11 seconds. A chance of showers after midnight.
.THU...S winds 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft at
12 seconds and S 1 foot at 2 seconds. A chance of showers.
.THU NIGHT...SW winds around 10 kt, becoming NW after midnight.
Seas 3 to 5 ft. Wave Detail: E 5 ft at 11 seconds and SW 1 foot
at 3 seconds. A chance of showers in the evening.
.FRI THROUGH SAT NIGHT...NE winds 10 to 15 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.

$$

ANZ231-250300-
Cape Cod Bay-
1004 AM EDT Tue Sep 24 2024

.THIS AFTERNOON...NE winds 10 to 15 kt. Gusts up to 20 kt. Seas
2 to 4 ft. Wave Detail: E 4 ft at 10 seconds and NE 2 ft at
3 seconds. A chance of sprinkles.
.TONIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: E
4 ft at 10 seconds and E 2 ft at 3 seconds. A chance of sprinkles
in the evening. Patchy fog after midnight with vsby 1 to 3 NM.
.WED...E winds around 10 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft
at 10 seconds and E 1 foot at 3 seconds. Patchy fog in the
morning with vsby 1 to 3 NM.
.WED NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 11 seconds and E 1 foot at 2 seconds.
.THU...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at
11 seconds and SE 1 foot at 2 seconds. A chance of showers.
.THU NIGHT...SW winds around 10 kt, becoming NW after midnight.
Seas 2 to 3 ft. Wave Detail: E 3 ft at 11 seconds and SW 1 foot
at 2 seconds. A chance of showers.
.FRI THROUGH SAT NIGHT...NE 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.

$$

ANZ254-250300-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1004 AM EDT Tue Sep 24 2024

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

.THIS AFTERNOON...NE winds around 15 kt with gusts up to 20 kt.
Seas 6 to 8 ft. Wave Detail: E 7 ft at 10 seconds and NE 1 foot
at 3 seconds. A chance of sprinkles.
.TONIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the evening.
Seas 6 to 7 ft. Wave Detail: E 7 ft at 10 seconds and E 1 foot at
3 seconds. Patchy fog after midnight with vsby 1 NM or less.
.WED...E winds 10 to 15 kt. Seas 5 to 7 ft. Wave Detail: E 7 ft
at 10 seconds. Patchy fog in the morning with vsby 1 NM or less.
.WED NIGHT...E winds 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: E
6 ft at 12 seconds.
.THU...SE winds 5 to 10 kt. Seas 5 to 6 ft. Wave Detail: E 6 ft
at 12 seconds. A chance of showers.
.THU NIGHT...SW winds around 10 kt, becoming NW after midnight.
Seas 4 to 6 ft. Wave Detail: E 6 ft at 11 seconds. A chance of
showers.
.FRI THROUGH SAT NIGHT...NE winds 10 to 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.

$$

ANZ255-250300-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1004 AM EDT Tue Sep 24 2024

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

.THIS AFTERNOON...NE winds 15 to 20 kt. Seas 5 to 7 ft. Wave
Detail: E 6 ft at 10 seconds and NE 2 ft at 4 seconds.
.TONIGHT...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 NE 1 foot
at 4 seconds.
.WED...E winds 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: E 6 ft
at 10 seconds and E 1 foot at 3 seconds.
.WED NIGHT...E winds 5 to 10 kt. Seas 4 to 6 ft. Wave Detail: E
5 ft at 11 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...SW winds around 10 kt, becoming NW after midnight.
Seas 3 to 5 ft. Wave Detail: E 5 ft at 11 seconds and SW 2 ft at
4 seconds. A chance of showers.
.FRI THROUGH SAT NIGHT...NE 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.

$$

ANZ256-250300-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1004 AM EDT Tue Sep 24 2024

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

.THIS AFTERNOON...NE winds around 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.
.TONIGHT...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 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft
at 10 seconds.
.WED NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: E
5 ft at 10 seconds.
.THU...S winds around 10 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft
at 12 seconds. A chance of showers.
.THU NIGHT...SW winds around 10 kt, becoming NW after midnight.
Seas 3 to 5 ft. Wave Detail: E 5 ft at 11 seconds and SW 2 ft at
4 seconds. A chance of showers.
.FRI THROUGH SAT...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft.
.SAT NIGHT...NE 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.

$$

ANZ232-250300-
Nantucket Sound-
1004 AM EDT Tue Sep 24 2024

.THIS AFTERNOON...NE winds around 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. Wave Detail: E 4 ft at 10 seconds and E 2 ft at
4 seconds. A chance of sprinkles.
.TONIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the evening.
Seas 2 to 4 ft. Wave Detail: E 4 ft at 10 seconds and E 2 ft at
4 seconds. A chance of sprinkles in the evening.
.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 1 foot at 3 seconds.
.THU...SE winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft
at 12 seconds and S 1 foot at 3 seconds. A chance of showers.
.THU NIGHT...SW winds around 10 kt, becoming NW after midnight.
Seas 2 to 3 ft. Wave Detail: E 3 ft at 12 seconds and S 1 foot at
3 seconds. A chance of showers.
.FRI THROUGH SAT NIGHT...NE 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.

$$

ANZ233-250300-
Vineyard Sound-
1004 AM EDT Tue Sep 24 2024

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

$$

ANZ234-250300-
Buzzards Bay-
1004 AM EDT Tue Sep 24 2024

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

$$

ANZ235-250300-
Rhode Island Sound-
1004 AM EDT Tue Sep 24 2024

.THIS AFTERNOON...NE winds around 15 kt. 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. A chance of sprinkles.
.TONIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 10 seconds and NE 2 ft at 4 seconds. A chance of
sprinkles in the evening.
.WED...E winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft
at 10 seconds and NE 1 foot at 3 seconds.
.WED NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 10 seconds and E 1 foot at 3 seconds.
.THU...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 12 seconds and S 1 foot at 3 seconds. A chance of showers.
.THU NIGHT...W winds around 10 kt, becoming NW after midnight.
Seas 2 to 3 ft. Wave Detail: SE 3 ft at 12 seconds and S 2 ft at
4 seconds. A chance of showers.
.FRI THROUGH SAT NIGHT...NE 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.

$$

ANZ237-250300-
Block Island Sound-
1004 AM EDT Tue Sep 24 2024

.THIS AFTERNOON...NE winds around 15 kt. Gusts up to 20 kt. Seas
3 to 4 ft. Wave Detail: E 4 ft at 10 seconds and NE 1 foot at
3 seconds.
.TONIGHT...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 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft
at 10 seconds and NE 1 foot at 3 seconds.
.WED NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 10 seconds and NE 1 foot at 3 seconds. A chance of
showers after midnight.
.THU...SE winds 5 to 10 kt, becoming S in the afternoon. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 12 seconds. A chance of
showers.
.THU NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 12 seconds and SW 1 foot at
4 seconds.
.FRI THROUGH SAT NIGHT...NE 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.

$$

ANZ230-250300-
Boston Harbor-
1004 AM EDT Tue Sep 24 2024

.THIS AFTERNOON...NE winds 10 to 15 kt. Waves 2 to 3 ft. A chance
of sprinkles.
.TONIGHT...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. A chance of sprinkles
in the evening. Patchy fog after midnight.
.WED...E winds around 10 kt. Waves 1 foot or less, then around
2 ft in the afternoon. At the outer harbor entrance, waves 2 to
4 ft.
.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 after
midnight.
.THU...S winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft
in the afternoon. At the outer harbor entrance, waves 2 to 4 ft.
A chance of showers.
.THU NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Waves 1 foot or less, except 2 to 4 ft at the outer harbor
entrance. A chance of showers in the evening.
.FRI THROUGH SAT 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.

$$

ANZ236-250300-
Narragansett Bay-
1004 AM EDT Tue Sep 24 2024

.THIS AFTERNOON...NE winds around 10 kt. Waves 2 to 3 ft. A
chance of sprinkles.
.TONIGHT...NE winds 5 to 10 kt. Waves 2 to 3 ft. A chance of
sprinkles in the evening.
.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 after midnight.
.THU...S winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers.
.THU NIGHT...W winds 5 to 10 kt, becoming NW after midnight.
Waves 2 to 3 ft. A chance of showers in the evening.
.FRI THROUGH SAT NIGHT...NE 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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