Coastal Waters Forecast
Issued by NWS Boston, MA

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FZUS51 KBOX 151516
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1116 AM EDT Mon Apr 15 2024

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

ANZ200-160400-
1116 AM EDT Mon Apr 15 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
Dry and seasonably mild conditions both Monday through Wednesday as
surface high builds across the waters. Winds will vary in direction
across the waters but generally form the W/SW gusting to 25kt;
lighter Tuesday. Weak low pressure system could bring light could
bring more light rain towards the end of the week.

$$

ANZ250-160400-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1116 AM EDT Mon Apr 15 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

.TODAY...W winds 5 to 10 kt, becoming S this afternoon. Seas 3 to
5 ft. Wave Detail: SE 4 ft at 10 seconds and SW 1 ft at
4 seconds.
.TONIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas
2 to 4 ft. Wave Detail: SE 4 ft at 9 seconds and S 1 ft at
2 seconds.
.TUE...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 9 seconds and W 1 ft at 3 seconds.
.TUE NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and W 1 ft at
3 seconds.
.WED AND WED NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: SE 3 ft at 9 seconds and NW 1 ft at 3 seconds.
.THU THROUGH FRI...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: E 3 ft at 9 seconds and SE 1 ft at 4 seconds.
.FRI NIGHT...S 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.

$$

ANZ251-160400-
Massachusetts Bay and Ipswich Bay-
1116 AM EDT Mon Apr 15 2024

.TODAY...W winds 5 to 10 kt, becoming S this afternoon. Seas 2 to
3 ft. Wave Detail: E 3 ft at 10 seconds and SW 1 ft at 4 seconds.
.TONIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 9 seconds and S 1 ft at 4 seconds.
.TUE...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft
at 9 seconds and W 1 ft at 2 seconds.
.TUE NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
E 2 ft at 9 seconds and NW 1 ft at 2 seconds.
.WED AND WED NIGHT...SE winds 10 to 15 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 3 seconds and E 2 ft at 9 seconds.
.THU THROUGH FRI...SE winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: E 2 ft at 6 seconds and SE 1 ft at 3 seconds.
.FRI NIGHT...S winds around 10 kt. Seas around 2 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.

$$

ANZ231-160400-
Cape Cod Bay-
1116 AM EDT Mon Apr 15 2024

.TODAY...W winds 5 to 10 kt, becoming SE this afternoon. Seas
2 to 3 ft. Wave Detail: SE 2 ft at 9 seconds and W 1 ft at
3 seconds.
.TONIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas
around 2 ft. Wave Detail: SE 2 ft at 9 seconds and SW 1 ft at
2 seconds.
.TUE...W winds 5 to 10 kt. Seas around 2 ft in the morning, then
1 foot or less. Wave Detail: SE 2 ft at 9 seconds and NW 1 ft at
2 seconds, becoming NW 1 ft at 3 seconds and SE 1 ft at
9 seconds.
.TUE NIGHT...SW winds around 5 kt, becoming N after midnight.
Seas 1 foot or less. Wave Detail: NW 1 ft at 3 seconds and SE
1 ft at 9 seconds.
.WED...N winds 5 to 10 kt, becoming E in the afternoon. Seas
1 foot or less. Wave Detail: N 1 ft at 3 seconds and E 1 ft at
8 seconds.
.WED NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: SE 1 ft at 3 seconds and E 1 ft at 6 seconds.
.THU THROUGH FRI...E winds 5 to 10 kt with gusts up to 20 kt.
Seas around 2 ft.
.FRI NIGHT...S winds around 10 kt. Seas around 2 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.

$$

ANZ254-160400-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1116 AM EDT Mon Apr 15 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

.TODAY...W winds 10 to 15 kt with gusts up to 20 kt, becoming SW
5 to 10 kt this afternoon. Seas 4 to 6 ft. Wave Detail: SE 4 ft
at 9 seconds and W 3 ft at 5 seconds.
.TONIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas
3 to 5 ft. Wave Detail: SE 4 ft at 9 seconds and SW 2 ft at
6 seconds.
.TUE...W winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at
9 seconds and W 1 ft at 3 seconds.
.TUE NIGHT...SW winds 5 to 10 kt, becoming N after midnight. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and W 2 ft at
6 seconds.
.WED...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 8 seconds and W 2 ft at 6 seconds.
.WED NIGHT...SE winds around 5 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 7 seconds.
.THU THROUGH FRI...E winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft.
.FRI NIGHT...S winds around 10 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.

$$

ANZ255-160400-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1116 AM EDT Mon Apr 15 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

.TODAY...SW winds around 10 kt. Gusts up to 20 kt this morning.
Seas 5 to 7 ft. Wave Detail: SW 6 ft at 8 seconds and S 6 ft at
9 seconds.
.TONIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas
3 to 5 ft. Wave Detail: S 5 ft at 8 seconds and SE 5 ft at
9 seconds.
.TUE...W winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at
8 seconds.
.TUE NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas 2 to 4 ft. Wave Detail: S 4 ft at 8 seconds.
.WED...NE winds around 10 kt, becoming E in the afternoon. Seas
2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SE 3 ft at
8 seconds.
.WED NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 7 seconds and SE 2 ft at 8 seconds. A chance of showers.
.THU THROUGH FRI...E winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 4 ft.
.FRI NIGHT...S winds 10 to 15 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.

$$

ANZ256-160400-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1116 AM EDT Mon Apr 15 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

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

$$

ANZ232-160400-
Nantucket Sound-
1116 AM EDT Mon Apr 15 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

.TODAY...SW winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: SW
2 ft at 7 seconds and SE 2 ft at 10 seconds.
.TONIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 6 seconds and SE 2 ft at 9 seconds.
.TUE...W winds 5 to 10 kt, becoming SW in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 9 seconds and W 1 ft at
4 seconds.
.TUE NIGHT...SW winds 5 to 10 kt, becoming N after midnight. Seas
around 2 ft. Wave Detail: SW 1 ft at 6 seconds and SE 1 ft at
9 seconds.
.WED AND WED NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less.
Wave Detail: SW 1 ft at 6 seconds and NE 1 ft at 8 seconds.
.THU THROUGH FRI...E winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: SE 2 ft at 6 seconds.
.FRI NIGHT...S winds around 10 kt. Seas around 2 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.

$$

ANZ233-160400-
Vineyard Sound-
1116 AM EDT Mon Apr 15 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

.TODAY...SW winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: SE
4 ft at 10 seconds and SW 3 ft at 7 seconds.
.TONIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 8 seconds and SW 2 ft at 7 seconds.
.TUE...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft
at 7 seconds.
.TUE NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas
around 2 ft. Wave Detail: S 2 ft at 7 seconds.
.WED...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft in the morning, then 1 foot or less. Wave Detail: SW
2 ft at 7 seconds and E 2 ft at 8 seconds, becoming SE 1 ft at
6 seconds.
.WED NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: SE 1 ft at 4 seconds and SE 1 ft at 7 seconds. A chance
of showers.
.THU AND THU NIGHT...E winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. A chance of showers.
.FRI...E winds around 10 kt. Seas around 2 ft.
.FRI NIGHT...S winds around 10 kt. Seas around 2 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.

$$

ANZ234-160400-
Buzzards Bay-
1116 AM EDT Mon Apr 15 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

.TODAY...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW
3 ft at 7 seconds and SE 3 ft at 10 seconds.
.TONIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 7 seconds and S 2 ft at 8 seconds.
.TUE...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft
at 9 seconds and SW 1 ft at 7 seconds.
.TUE NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas
around 2 ft. Wave Detail: S 2 ft at 7 seconds.
.WED...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
1 foot or less. Wave Detail: SW 1 ft at 7 seconds and E 1 ft at
7 seconds.
.WED NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: SE 1 ft at 4 seconds and SE 1 ft at 7 seconds. A chance
of showers.
.THU...E winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft.
.THU NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft. A chance of showers.
.FRI...E winds around 10 kt. Seas around 2 ft.
.FRI NIGHT...S winds around 10 kt. Seas around 2 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.

$$

ANZ235-160400-
Rhode Island Sound-
1116 AM EDT Mon Apr 15 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

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

$$

ANZ237-160400-
Block Island Sound-
1116 AM EDT Mon Apr 15 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

.TODAY...SW winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: SE
5 ft at 9 seconds and S 4 ft at 8 seconds.
.TONIGHT...W winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: S
4 ft at 7 seconds.
.TUE...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at
7 seconds.
.TUE NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas
2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and SW 2 ft at
8 seconds.
.WED...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: S 2 ft at 7 seconds and SE 2 ft at
8 seconds.
.WED NIGHT...SE winds around 10 kt. Gusts up to 20 kt after
midnight. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and
SE 2 ft at 8 seconds. A chance of showers.
.THU AND THU NIGHT...E winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 4 ft. A chance of showers.
.FRI...E winds around 10 kt with gusts up to 20 kt. Seas 3 to
4 ft.
.FRI NIGHT...S winds 5 to 10 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.

$$

ANZ230-160400-
Boston Harbor-
1116 AM EDT Mon Apr 15 2024

.TODAY...W winds around 5 kt, becoming SW this afternoon. Waves
around 2 ft.
.TONIGHT...W winds 5 to 10 kt. Waves around 2 ft.
.TUE...W winds 5 to 10 kt. Waves around 2 ft.
.TUE NIGHT...NW winds 5 to 10 kt. Waves around 2 ft in the
evening, then 1 foot or less.
.WED AND WED NIGHT...SE winds 10 to 15 kt. Waves around 2 ft.
.THU THROUGH FRI...E winds 5 to 10 kt with gusts up to 20 kt.
Waves around 2 ft.
.FRI NIGHT...S winds around 10 kt. Waves around 2 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.

$$

ANZ236-160400-
Narragansett Bay-
1116 AM EDT Mon Apr 15 2024

.TODAY...W winds around 5 kt, becoming SW this afternoon. Waves
3 to 5 ft.
.TONIGHT...NW winds 5 to 10 kt. Waves 2 to 3 ft.
.TUE...W winds 5 to 10 kt. Waves 2 to 3 ft.
.TUE NIGHT...W winds 5 to 10 kt, becoming N after midnight. Waves
around 2 ft.
.WED...NE winds 5 to 10 kt, becoming SE 10 to 15 kt in the
afternoon. Waves around 2 ft.
.WED NIGHT...SE winds 5 to 10 kt. Waves around 2 ft. A chance of
showers.
.THU AND THU NIGHT...E winds 10 to 15 kt with gusts up to 20 kt.
Waves 2 to 3 ft. A chance of showers.
.FRI...E winds 5 to 10 kt. Waves 2 to 3 ft.
.FRI NIGHT...S winds around 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.

$$

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