358
FZUS51 KBOX 222003
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
403 PM EDT Sun Sep 22 2024

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

ANZ200-230900-
403 PM EDT Sun Sep 22 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pres will begin to build over the waters through Mon. A cold
front is expected to approach the region Wed into Thurs, bringing
the next chance for unsettled weather.

$$

ANZ250-230900-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
403 PM EDT Sun Sep 22 2024

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

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

$$

ANZ251-230900-
Massachusetts Bay and Ipswich Bay-
403 PM EDT Sun Sep 22 2024

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

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

$$

ANZ231-230900-
Cape Cod Bay-
403 PM EDT Sun Sep 22 2024

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

.TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: E 5 ft at 10 seconds and N 3 ft at 4 seconds.
A slight chance of showers this evening.
.MON...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: E 5 ft at 11 seconds and NE 3 ft at 4 seconds.
.MON NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 ft. Wave Detail: E 5 ft at 10 seconds and NE 2 ft at
4 seconds.
.TUE...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: E 5 ft at 10 seconds and NE 2 ft at 3 seconds.
.TUE NIGHT AND WED...E winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 5 ft. Wave Detail: E 4 ft at 10 seconds and E 2 ft at
3 seconds.
.WED NIGHT...SE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 10 seconds and E 1 foot at 2 seconds. A chance of showers
after midnight.
.THU THROUGH FRI...N winds 5 to 10 kt. Seas 2 to 4 ft. A chance
of showers.
.FRI NIGHT...N winds 10 to 15 kt with 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.

$$

ANZ254-230900-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
403 PM EDT Sun Sep 22 2024

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

.TONIGHT...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
11 ft. Wave Detail: E 10 ft at 11 seconds and NE 1 foot at
4 seconds.
.MON NIGHT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 25 kt. Seas 7 to 10 ft. Wave Detail:
E 9 ft at 11 seconds and NE 1 foot at 3 seconds.
.TUE...NE winds around 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.
.TUE NIGHT AND WED...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 NIGHT...E winds 5 to 10 kt. Seas 5 to 7 ft. Wave Detail: E
7 ft at 12 seconds. A chance of showers after midnight.
.THU THROUGH FRI...NW winds 10 to 15 kt. Seas 4 to 6 ft. A chance
of showers.
.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.

$$

ANZ255-230900-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
403 PM EDT Sun Sep 22 2024

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

.TONIGHT...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. A slight chance of showers this evening.
.MON...NE winds around 20 kt with gusts up to 25 kt. Seas 7 to
10 ft. Wave Detail: E 9 ft at 11 seconds and NE 3 ft at
5 seconds.
.MON NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas
6 to 9 ft. Wave Detail: E 8 ft at 11 seconds and NE 2 ft at
4 seconds.
.TUE...NE winds 15 to 20 kt. Seas 5 to 8 ft. Wave Detail: E 7 ft
at 10 seconds and NE 2 ft at 4 seconds.
.TUE NIGHT...NE 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
2 ft at 4 seconds.
.WED...E winds 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: E 6 ft
at 10 seconds and NE 1 foot at 3 seconds.
.WED NIGHT...E winds 10 to 15 kt. Seas 4 to 6 ft. A chance of
showers after midnight.
.THU...SE winds around 10 kt. Seas 4 to 6 ft. A chance of
showers.
.THU NIGHT...SW winds around 10 kt. Seas 3 to 5 ft. A chance of
showers.
.FRI...NW winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...N winds 10 to 15 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.

$$

ANZ256-230900-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
403 PM EDT Sun Sep 22 2024

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

.TONIGHT...NE winds 20 to 25 kt with 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.
A slight chance of showers this evening.
.MON...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to
8 ft. Wave Detail: E 8 ft at 11 seconds and NE 2 ft at 5 seconds.
.MON NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas
5 to 8 ft. Wave Detail: E 7 ft at 11 seconds and NE 2 ft at
4 seconds.
.TUE...NE winds 15 to 20 kt. Seas 5 to 7 ft. Wave Detail: E 7 ft
at 11 seconds and NE 1 foot at 3 seconds.
.TUE NIGHT AND WED...E winds 15 to 20 kt. Seas 4 to 6 ft. Wave
Detail: E 6 ft at 10 seconds and NE 1 foot at 4 seconds.
.WED NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: E
5 ft at 10 seconds. A chance of showers after midnight.
.THU AND THU NIGHT...SE 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. 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.

$$

ANZ232-230900-
Nantucket Sound-
403 PM EDT Sun Sep 22 2024

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

.TONIGHT...NE winds 20 to 25 kt with 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.
A slight chance of showers this evening.
.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 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 ft. Wave Detail: E 5 ft at 11 seconds and NE 3 ft at
4 seconds.
.TUE...NE winds 15 to 20 kt. Seas 3 to 5 ft. Wave Detail: NE 3 ft
at 4 seconds and E 3 ft at 10 seconds.
.TUE NIGHT AND WED...E winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 5 ft. Wave Detail: E 3 ft at 4 seconds and E 3 ft at
10 seconds.
.WED NIGHT...E winds 10 to 15 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...SE winds around 10 kt, becoming SW. Seas
2 to 4 ft. A chance of showers.
.FRI AND FRI NIGHT...N winds 10 to 15 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.

$$

ANZ233-230900-
Vineyard Sound-
403 PM EDT Sun Sep 22 2024

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

.TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft. Wave Detail: NE 3 ft at 4 seconds and E 2 ft at 10 seconds.
A slight chance of showers this evening.
.MON...NE winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft
at 11 seconds and NE 2 ft at 4 seconds.
.MON NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: E 3 ft at 11 seconds and NE
2 ft at 4 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 AND WED...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 E 2 ft at
10 seconds.
.WED NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E
2 ft at 10 seconds and E 1 foot at 3 seconds. A chance of showers
after midnight.
.THU AND THU NIGHT...SE winds 5 to 10 kt, becoming SW. Seas
around 2 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.

$$

ANZ234-230900-
Buzzards Bay-
403 PM EDT Sun Sep 22 2024

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

.TONIGHT...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.
A slight chance of showers this evening.
.MON...NE winds around 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.
.MON 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 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
4 ft. Wave Detail: E 3 ft at 11 seconds and NE 2 ft at 3 seconds.
.TUE NIGHT AND WED...E winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. Wave Detail: E 3 ft at 10 seconds and NE 2 ft at
3 seconds.
.WED NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 10 seconds and E 1 foot at 3 seconds. A chance of showers
after midnight.
.THU AND THU NIGHT...SE winds 5 to 10 kt, becoming SW. Seas 2 to
3 ft. A chance of showers.
.FRI AND FRI NIGHT...N winds around 10 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.

$$

ANZ235-230900-
Rhode Island Sound-
403 PM EDT Sun Sep 22 2024

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

.TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
5 ft. Wave Detail: NE 4 ft at 4 seconds and SE 3 ft at
10 seconds. A slight chance of showers this evening.
.MON...NE winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: NE 4 ft
at 5 seconds and E 4 ft at 11 seconds.
.MON NIGHT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Seas 4 to 5 ft. Wave Detail: E 4 ft at 11 seconds
and NE 3 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 AND WED...E winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 4 ft. Wave Detail: E 4 ft at 10 seconds and NE 3 ft at
5 seconds.
.WED NIGHT...E winds around 10 kt. Seas 3 to 4 ft. Wave Detail:
SE 3 ft at 10 seconds and E 1 foot at 3 seconds. A chance of
showers.
.THU AND THU NIGHT...SE winds around 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.

$$

ANZ237-230900-
Block Island Sound-
403 PM EDT Sun Sep 22 2024

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

.TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
5 ft. Wave Detail: E 4 ft at 9 seconds and NE 3 ft at 5 seconds.
.MON...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 3 ft at 5 seconds.
.MON NIGHT...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.
.TUE...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around
4 ft. Wave Detail: E 4 ft at 11 seconds and NE 1 foot at
4 seconds.
.TUE NIGHT AND WED...E winds 10 to 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.
.WED NIGHT...E winds around 10 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 10 seconds. A chance of showers.
.THU...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers.
.THU NIGHT THROUGH FRI NIGHT...N winds 5 to 10 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.

$$

ANZ230-230900-
Boston Harbor-
403 PM EDT Sun Sep 22 2024

.TONIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt this evening.
Waves 2 to 3 ft, except 4 to 6 ft at the outer harbor entrance.
.MON...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.
.MON NIGHT...NE winds 10 to 15 kt. Waves 2 to 3 ft in the
evening, then 1 foot or less. At the outer harbor entrance, waves
3 to 5 ft.
.TUE...NE winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Waves 2 to 3 ft.
.TUE NIGHT AND WED...E winds 10 to 15 kt. Waves around 2 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.
.THU AND THU NIGHT...SE winds 5 to 10 kt, becoming SW. 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 5 to 10 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.

$$

ANZ236-230900-
Narragansett Bay-
403 PM EDT Sun Sep 22 2024

.TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Waves
2 to 3 ft. A slight chance of showers this evening.
.MON...NE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to
3 ft.
.MON NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Waves 2 to 3 ft.
.TUE...NE winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Waves 2 to 3 ft.
.TUE NIGHT AND WED...E winds 5 to 10 kt. Waves 2 to 3 ft.
.WED NIGHT...E winds 5 to 10 kt. Waves 2 to 3 ft. A chance of
showers.
.THU AND THU NIGHT...SE 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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