252
FZUS51 KBOX 220025
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
824 PM EDT Sat Sep 21 2024

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

ANZ200-221300-
824 PM EDT Sat Sep 21 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
Rain with gusty NE winds continues through tonight before conditions
start to improve Sunday. High pressure begins building in Mon from
the N and is expected to last into Wed, bringing calmer waters.

$$

ANZ250-221300-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
824 PM EDT Sat Sep 21 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TONIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 7 to
10 ft. Wave Detail: E 8 ft at 9 seconds and NE 3 ft at 5 seconds.
Rain this evening, then a chance of showers after midnight. Vsby
1 to 3 NM.
.SUN...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 7 to
9 ft. Wave Detail: E 8 ft at 9 seconds and NE 1 foot at
4 seconds. A chance of rain in the morning.
.SUN NIGHT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 25 kt. Seas 7 to 9 ft. Wave Detail: E
8 ft at 10 seconds and NE 1 foot at 4 seconds.
.MON...NE winds 10 to 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.
.MON NIGHT THROUGH TUE NIGHT...E winds around 10 kt. Seas 6 to
8 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 6 ft. Wave Detail: E 6 ft
at 10 seconds.
.WED NIGHT AND THU...E winds around 10 kt. Seas 5 to 6 ft. A
chance of showers.
.THU NIGHT...E winds around 10 kt. Seas 5 to 8 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.

$$

ANZ251-221300-
Massachusetts Bay and Ipswich Bay-
824 PM EDT Sat Sep 21 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to
9 ft, subsiding to 5 to 7 ft after midnight. Wave Detail: E 8 ft
at 9 seconds and NE 3 ft at 5 seconds, becoming E 7 ft at
9 seconds and NE 2 ft at 4 seconds. Rain this evening, then a
chance of showers after midnight. Vsby 1 to 3 NM this evening.
.SUN...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to
8 ft. Wave Detail: E 7 ft at 9 seconds and NE 1 foot at
4 seconds. A chance of rain in the morning.
.SUN NIGHT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 25 kt. Seas 6 to 8 ft. Wave Detail: E
8 ft at 10 seconds and NE 1 foot at 4 seconds.
.MON...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 6 to
8 ft. Wave Detail: E 8 ft at 10 seconds and NE 1 foot at
3 seconds.
.MON NIGHT THROUGH TUE NIGHT...E winds around 10 kt. Seas 5 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 4 to 6 ft. Wave Detail: E 5 ft
at 10 seconds.
.WED NIGHT AND THU...E winds around 10 kt. Seas 4 to 6 ft. A
chance of showers.
.THU NIGHT...E winds around 10 kt. Seas 5 to 7 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.

$$

ANZ231-221300-
Cape Cod Bay-
824 PM EDT Sat Sep 21 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TONIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to
7 ft, subsiding to 4 to 5 ft after midnight. Wave Detail: E 6 ft
at 9 seconds and N 5 ft at 5 seconds, becoming E 5 ft at
9 seconds and N 4 ft at 5 seconds. Rain. Patchy fog this evening.
Vsby 1 NM or less, increasing to 1 to 3 NM after midnight.
.SUN...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. Wave Detail: E 5 ft at 9 seconds and N 3 ft at 4 seconds. A
chance of rain in the morning.
.SUN NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 6 ft. Wave Detail: E 6 ft at 10 seconds and N 3 ft at
4 seconds.
.MON...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to
6 ft. Wave Detail: E 6 ft at 11 seconds and N 3 ft at 5 seconds.
.MON NIGHT THROUGH TUE NIGHT...E 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 3 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 THROUGH THU NIGHT...E winds around 10 kt. Seas 3 to
5 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.

$$

ANZ254-221300-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
824 PM EDT Sat Sep 21 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TONIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 8 to
11 ft. Wave Detail: E 10 ft at 9 seconds and NE 2 ft at
4 seconds. Rain. Patchy fog this evening. Vsby 1 NM or less,
increasing to 1 to 3 NM after midnight.
.SUN...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 7 to
10 ft. Wave Detail: E 10 ft at 10 seconds and NE 1 foot at
4 seconds. Rain likely in the morning with vsby 1 to 3 NM.
.SUN NIGHT...NE winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. Gusts up to 30 kt. Seas 8 to 11 ft. Wave Detail:
E 10 ft at 10 seconds and NE 1 foot at 4 seconds.
.MON...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 8 to
10 ft. Wave Detail: E 10 ft at 11 seconds and NE 1 foot at
3 seconds.
.MON NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
7 to 10 ft. Wave Detail: E 9 ft at 11 seconds and NE 1 foot at
3 seconds.
.TUE AND TUE NIGHT...E winds 10 to 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.
.WED...E winds around 10 kt. Seas 5 to 7 ft.
.WED NIGHT THROUGH THU NIGHT...E winds 10 to 15 kt. Seas 5 to
7 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.

$$

ANZ255-221300-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
824 PM EDT Sat Sep 21 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TONIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to
9 ft. Wave Detail: E 8 ft at 9 seconds and N 4 ft at 5 seconds.
Patchy fog. Rain. Vsby 1 NM or less, increasing to 1 to 3 NM
after midnight.
.SUN...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to
9 ft. Wave Detail: E 8 ft at 9 seconds and N 4 ft at 5 seconds.
Rain likely in the morning with vsby 1 to 3 NM.
.SUN NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas
7 to 10 ft. Wave Detail: E 9 ft at 11 seconds and NE 3 ft at
5 seconds.
.MON...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to
9 ft. Wave Detail: E 9 ft at 11 seconds and NE 3 ft at 4 seconds.
.MON NIGHT...NE winds 15 to 20 kt. Seas 6 to 9 ft. Wave Detail: E
8 ft at 11 seconds and NE 2 ft at 4 seconds.
.TUE AND TUE NIGHT...E 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 2 ft at
4 seconds.
.WED...E winds 10 to 15 kt. Seas 5 to 7 ft.
.WED NIGHT THROUGH THU NIGHT...E winds 10 to 15 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.

$$

ANZ256-221300-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
824 PM EDT Sat Sep 21 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TONIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to
8 ft. Wave Detail: N 6 ft at 6 seconds and E 6 ft at 9 seconds.
Rain likely. Vsby 1 to 3 NM.
.SUN...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to
7 ft. Wave Detail: E 7 ft at 9 seconds and N 4 ft at 5 seconds. A
chance of rain in the morning.
.SUN NIGHT...NE winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. Gusts up to 30 kt. Seas 5 to 8 ft. Wave Detail: E
7 ft at 10 seconds and NE 3 ft at 5 seconds.
.MON...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to
8 ft. Wave Detail: E 8 ft at 11 seconds and NE 2 ft at 4 seconds.
.MON NIGHT...NE winds 15 to 20 kt. Seas 5 to 8 ft. Wave Detail: E
8 ft at 11 seconds and NE 1 foot at 4 seconds.
.TUE AND TUE NIGHT...E winds 10 to 15 kt with gusts up to 20 kt.
Seas 5 to 6 ft. Wave Detail: E 6 ft at 10 seconds.
.WED...E winds 10 to 15 kt. Seas 4 to 6 ft.
.WED NIGHT THROUGH THU NIGHT...NE winds 10 to 15 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.

$$

ANZ232-221300-
Nantucket Sound-
824 PM EDT Sat Sep 21 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.TONIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to
6 ft. Wave Detail: N 4 ft at 5 seconds and E 4 ft at 9 seconds.
Rain. Patchy fog this evening. Vsby 1 to 3 NM.
.SUN...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to
6 ft. Wave Detail: N 4 ft at 4 seconds and E 3 ft at 9 seconds. A
chance of rain in the morning with vsby 1 to 3 NM.
.SUN NIGHT...NE winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: E
4 ft at 10 seconds and NE 3 ft at 4 seconds.
.MON...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. Wave Detail: E 4 ft at 11 seconds and NE 3 ft at 4 seconds.
.MON NIGHT...NE winds around 15 kt with gusts up to 20 kt. Seas
4 to 6 ft. Wave Detail: E 4 ft at 11 seconds and NE 3 ft at
4 seconds.
.TUE AND TUE NIGHT...E winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 5 ft. Wave Detail: E 3 ft at 10 seconds and NE 2 ft at
4 seconds.
.WED...E winds 10 to 15 kt. Seas 3 to 4 ft.
.WED NIGHT THROUGH THU NIGHT...E winds 10 to 15 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.

$$

ANZ233-221300-
Vineyard Sound-
824 PM EDT Sat Sep 21 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT...

.TONIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
5 ft. Wave Detail: N 3 ft at 5 seconds and E 2 ft at 10 seconds.
Rain. Patchy fog this evening. Vsby 1 to 3 NM.
.SUN...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft. Wave Detail: N 2 ft at 4 seconds and E 2 ft at 9 seconds. A
chance of rain in the morning.
.SUN NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 4 ft. Wave Detail: NE 2 ft at 4 seconds and E 2 ft at
10 seconds.
.MON...NE winds around 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Wave Detail: E 3 ft at 11 seconds and NE 2 ft at 3 seconds.
.MON NIGHT THROUGH TUE NIGHT...E winds 10 to 15 kt with gusts up
to 20 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 11 seconds and
NE 2 ft at 3 seconds.
.WED...E winds around 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft
at 9 seconds and NE 1 foot at 3 seconds.
.WED NIGHT THROUGH THU NIGHT...NE winds 10 to 15 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.

$$

ANZ234-221300-
Buzzards Bay-
824 PM EDT Sat Sep 21 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT...

.TONIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
4 ft. Wave Detail: N 3 ft at 5 seconds and E 3 ft at 9 seconds.
Rain. Vsby 1 to 3 NM.
.SUN...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft. Wave Detail: E 3 ft at 9 seconds and N 2 ft at 4 seconds. A
chance of rain in the morning.
.SUN NIGHT...NE winds 15 to 20 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
4 seconds.
.MON...NE winds around 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: E 3 ft at 11 seconds and NE 2 ft at 3 seconds.
.MON NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 3 to 5 ft. Wave Detail: E 3 ft at 11 seconds and NE
2 ft at 3 seconds.
.TUE AND TUE NIGHT...E 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 1 foot
at 3 seconds.
.WED...E winds 10 to 15 kt. Seas 2 to 3 ft.
.WED NIGHT THROUGH THU NIGHT...E 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.

$$

ANZ235-221300-
Rhode Island Sound-
824 PM EDT Sat Sep 21 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT...

.TONIGHT...NE winds 20 to 25 kt, becoming N 15 to 20 kt after
midnight. Gusts up to 30 kt. Seas 4 to 5 ft. Wave Detail: N 4 ft
at 5 seconds and SE 3 ft at 9 seconds. Rain this evening, then a
chance of showers after midnight. Vsby 1 to 3 NM.
.SUN...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
5 ft. Wave Detail: N 4 ft at 4 seconds and SE 3 ft at 9 seconds.
A chance of rain in the morning.
.SUN NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 5 ft. Wave Detail: E 4 ft at 10 seconds and NE 3 ft at
4 seconds.
.MON...NE winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft
at 12 seconds and NE 3 ft at 4 seconds.
.MON NIGHT THROUGH TUE NIGHT...E winds 10 to 15 kt with gusts up
to 20 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft at 12 seconds and
NE 2 ft at 4 seconds.
.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 THROUGH THU NIGHT...NE winds 10 to 15 kt. Seas 3 to
5 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.

$$

ANZ237-221300-
Block Island Sound-
824 PM EDT Sat Sep 21 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT...

.TONIGHT...N winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
5 ft. Wave Detail: E 4 ft at 9 seconds and N 3 ft at 5 seconds.
Rain likely this evening, then a chance of showers after
midnight. Vsby 1 to 3 NM this evening.
.SUN...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: E 4 ft at 9 seconds and NE 3 ft at 4 seconds.
.SUN NIGHT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: E
5 ft at 10 seconds and NE 3 ft at 4 seconds.
.MON...NE winds 10 to 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.
.MON NIGHT THROUGH TUE NIGHT...E winds 10 to 15 kt with gusts up
to 20 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft at 12 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 THROUGH THU NIGHT...NE winds around 10 kt. Seas 3 to
5 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.

$$

ANZ230-221300-
Boston Harbor-
824 PM EDT Sat Sep 21 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING...

.TONIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Waves
2 to 3 ft, except 4 to 6 ft at the outer harbor entrance. Rain
this evening, then a chance of showers after midnight. Vsby 1 to
3 NM this evening.
.SUN...NE winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to
3 ft, except 4 to 6 ft at the outer harbor entrance. A chance of
rain in the morning.
.SUN NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Waves 2 to 3 ft, except 4 to 6 ft at the outer harbor
entrance.
.MON...NE winds 10 to 15 kt. Waves 2 to 3 ft, except 4 to 6 ft at
the outer harbor entrance.
.MON NIGHT THROUGH TUE NIGHT...E winds 5 to 10 kt. Waves 2 to
3 ft.
.WED...E winds 5 to 10 kt. Waves 2 to 3 ft.
.WED NIGHT THROUGH THU NIGHT...E winds 5 to 10 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.

$$

ANZ236-221300-
Narragansett Bay-
824 PM EDT Sat Sep 21 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING...

.TONIGHT...N winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. Gusts up to 25 kt. Waves 2 to 3 ft. Rain this evening,
then a chance of showers after midnight. Vsby 1 to 3 NM.
.SUN...NE winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to
3 ft. A chance of rain in the morning.
.SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Waves
2 to 3 ft.
.MON...NE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to
3 ft.
.MON NIGHT THROUGH TUE NIGHT...NE winds 5 to 10 kt. Waves 2 to
3 ft.
.WED...E winds 5 to 10 kt. Waves 2 to 4 ft.
.WED NIGHT THROUGH THU NIGHT...NE winds 5 to 10 kt. Waves 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.

$$

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