Coastal Waters Forecast
Issued by NWS Boston, MA

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240
FZUS51 KBOX 310504
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
104 AM EDT Fri May 31 2024

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

ANZ200-311800-
104 AM EDT Fri May 31 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pres builds in from the west Fri into the weekend, bringing
mainly dry pleasant boating weather to the region. This high pres
system will remain in control of our weather for the first half of
next week.

$$

ANZ250-311800-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
104 AM EDT Fri May 31 2024

.REST OF TONIGHT...NW winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: E 2 ft at 7 seconds and N 1 foot at 4 seconds.
.FRI...N winds around 10 kt, becoming SW in the afternoon. Seas
2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and SE 2 ft at
7 seconds.
.FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and N 1 foot
at 4 seconds.
.SAT...N winds 5 to 10 kt, becoming E in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds and N 1 foot at
4 seconds.
.SAT NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas
around 2 ft. Wave Detail: S 1 foot at 2 seconds and NE 1 foot at
3 seconds.
.SUN AND SUN NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: E 1 foot at 3 seconds and SW 1 foot at 3 seconds.
.MON THROUGH TUE NIGHT...S winds 5 to 10 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.

$$

ANZ251-311800-
Massachusetts Bay and Ipswich Bay-
104 AM EDT Fri May 31 2024

.REST OF TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: E 2 ft at 7 seconds and N 1 foot at 4 seconds.
.FRI...N winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: E 2 ft at 7 seconds and N 1 foot at
4 seconds.
.FRI NIGHT...SW winds around 5 kt, becoming NW after midnight.
Seas around 2 ft. Wave Detail: S 1 foot at 2 seconds and NE
1 foot at 4 seconds.
.SAT...N winds 5 to 10 kt, becoming E in the afternoon. Seas
1 foot or less. Wave Detail: N 1 foot at 3 seconds and E 1 foot
at 7 seconds.
.SAT NIGHT...S winds around 10 kt, becoming SW after midnight.
Seas around 2 ft. Wave Detail: SE 1 foot at 3 seconds and E
1 foot at 9 seconds.
.SUN AND SUN NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SW 1 foot at 2 seconds and SE 1 foot at 3 seconds.
.MON THROUGH TUE NIGHT...S winds 5 to 10 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.

$$

ANZ231-311800-
Cape Cod Bay-
104 AM EDT Fri May 31 2024

.REST OF TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: N 2 ft at 4 seconds and SE 1 foot at 7 seconds.
.FRI...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N
1 foot at 4 seconds and SE 1 foot at 7 seconds.
.FRI NIGHT...SW winds around 5 kt, becoming NW after midnight.
Seas 1 foot or less. Wave Detail: W 1 foot at 3 seconds and NE
1 foot at 4 seconds.
.SAT...N winds around 5 kt, becoming NE in the afternoon. Seas
1 foot or less. Wave Detail: N 1 foot at 4 seconds and SE 1 foot
at 7 seconds.
.SAT NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas
1 foot or less. Wave Detail: NE 1 foot at 3 seconds and SW 1 foot
at 3 seconds.
.SUN AND SUN NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less.
Wave Detail: W 1 foot at 2 seconds and E 1 foot at 3 seconds.
.MON THROUGH TUE NIGHT...S winds 5 to 10 kt. Seas 1 foot or less.


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.

$$

ANZ254-311800-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
104 AM EDT Fri May 31 2024

.REST OF TONIGHT...NW winds 10 to 15 kt. Seas 3 to 4 ft. Wave
Detail: N 2 ft at 5 seconds and SE 2 ft at 7 seconds.
.FRI...N winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: N 2 ft at
5 seconds and SE 2 ft at 7 seconds.
.FRI NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas
2 to 3 ft. Wave Detail: SE 2 ft at 7 seconds and NW 1 foot at
3 seconds.
.SAT...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft
at 7 seconds and N 1 foot at 4 seconds.
.SAT NIGHT THROUGH SUN NIGHT...SW winds 5 to 10 kt. Seas around
2 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 10 seconds.
.MON THROUGH TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft.
Wave Detail: SW 2 ft at 4 seconds and NE 2 ft at 5 seconds.

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.

$$

ANZ255-311800-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
104 AM EDT Fri May 31 2024

.REST OF TONIGHT...NW winds 10 to 15 kt. Seas 2 to 4 ft. Wave
Detail: N 2 ft at 4 seconds and SE 2 ft at 7 seconds.
.FRI...NW winds around 10 kt, becoming NE in the afternoon. Seas
2 to 4 ft. Wave Detail: N 2 ft at 4 seconds and SE 2 ft at
7 seconds.
.FRI NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas
2 to 3 ft. Wave Detail: SE 2 ft at 7 seconds and W 1 foot at
3 seconds.
.SAT...N winds 5 to 10 kt, becoming NW in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds and W 1 foot at
4 seconds.
.SAT NIGHT THROUGH SUN NIGHT...SW winds 10 to 15 kt. Seas around
2 ft. Wave Detail: SW 2 ft at 4 seconds and NE 1 foot at
4 seconds.
.MON THROUGH TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft.
Wave Detail: E 2 ft at 3 seconds and SW 2 ft at 5 seconds.

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.

$$

ANZ256-311800-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
104 AM EDT Fri May 31 2024

.REST OF TONIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: SE 2 ft at 7 seconds and N 1 foot at 3 seconds.
.FRI...N winds 5 to 10 kt, becoming W in the afternoon. Seas 2 to
3 ft. Wave Detail: SE 2 ft at 7 seconds and N 1 foot at
3 seconds.
.FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and SW 1 foot
at 2 seconds.
.SAT...N winds 5 to 10 kt, becoming SW in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds and NW 1 foot at
3 seconds.
.SAT NIGHT THROUGH SUN NIGHT...SW winds 5 to 10 kt. Seas around
2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 7 seconds.
.MON THROUGH TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft.
Wave Detail: E 2 ft at 3 seconds and SW 2 ft at 5 seconds.

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.

$$

ANZ232-311800-
Nantucket Sound-
104 AM EDT Fri May 31 2024

.REST OF TONIGHT...NW winds around 10 kt. Seas around 2 ft. Wave
Detail: N 1 foot at 3 seconds and SE 1 foot at 7 seconds.
.FRI...N winds around 10 kt, becoming E in the afternoon. Seas
around 2 ft. Wave Detail: N 1 foot at 4 seconds and SE 1 foot at
7 seconds.
.FRI NIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas
around 2 ft. Wave Detail: SW 1 foot at 3 seconds and E 1 foot at
6 seconds.
.SAT...N winds 5 to 10 kt, becoming E in the afternoon. Seas
1 foot or less. Wave Detail: N 1 foot at 4 seconds and SE 1 foot
at 7 seconds.
.SAT NIGHT THROUGH SUN NIGHT...SW winds 5 to 10 kt. Seas 1 foot
or less. Wave Detail: NE 1 foot at 3 seconds and SW 1 foot at
3 seconds.
.MON THROUGH TUE NIGHT...S winds 5 to 10 kt. Seas 1 foot or less.
Wave Detail: W 1 foot at 4 seconds and NE 1 foot at 4 seconds.

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.

$$

ANZ233-311800-
Vineyard Sound-
104 AM EDT Fri May 31 2024

.REST OF TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: N 1 foot at 3 seconds and S 1 foot at 7 seconds.
.FRI...N winds 5 to 10 kt, becoming SW in the afternoon. Seas
around 2 ft. Wave Detail: N 1 foot at 3 seconds and S 1 foot at
7 seconds.
.FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and NE
1 foot at 4 seconds.
.SAT...N winds 5 to 10 kt, becoming SW in the afternoon. Seas
1 foot or less. Wave Detail: N 1 foot at 4 seconds and S 1 foot
at 7 seconds.
.SAT NIGHT THROUGH SUN NIGHT...SW winds 5 to 10 kt. Seas 1 foot
or less. Wave Detail: NE 1 foot at 3 seconds and SW 1 foot at
4 seconds.
.MON THROUGH TUE NIGHT...S winds 5 to 10 kt. Seas 1 foot or less.
Wave Detail: NE 1 foot at 2 seconds and SW 1 foot at 4 seconds.

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.

$$

ANZ234-311800-
Buzzards Bay-
104 AM EDT Fri May 31 2024

.REST OF TONIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: N 1 foot at 3 seconds and S 1 foot at 7 seconds.
.FRI...N winds 5 to 10 kt, becoming SE in the afternoon. Seas
1 foot or less. Wave Detail: N 1 foot at 3 seconds and SE 1 foot
at 7 seconds.
.FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas around 2 ft in the evening, then 1 foot or less. Wave
Detail: SW 1 foot at 3 seconds and NE 1 foot at 4 seconds,
becoming W 1 foot at 3 seconds and NE 1 foot at 4 seconds.
.SAT...N winds 5 to 10 kt, becoming S in the afternoon. Seas
1 foot or less. Wave Detail: N 1 foot at 4 seconds and S 1 foot
at 7 seconds.
.SAT NIGHT THROUGH SUN NIGHT...SW winds 5 to 10 kt. Seas 1 foot
or less. Wave Detail: E 1 foot at 3 seconds and SW 1 foot at
3 seconds.
.MON THROUGH TUE NIGHT...S winds 5 to 10 kt. Seas 1 foot or less.
Wave Detail: SW 1 foot at 4 seconds and SE 1 foot at 9 seconds.

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.

$$

ANZ235-311800-
Rhode Island Sound-
104 AM EDT Fri May 31 2024

.REST OF TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 7 seconds and N 1 foot at 3 seconds.
.FRI...N winds 5 to 10 kt, becoming SW in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds and N 1 foot at
3 seconds.
.FRI NIGHT...SW winds around 10 kt, becoming NW after midnight.
Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and NE 1 foot
at 2 seconds.
.SAT...N winds 5 to 10 kt, becoming SW in the afternoon. Seas
around 2 ft in the morning, then 1 foot or less. Wave Detail: S
2 ft at 7 seconds and NW 1 foot at 3 seconds, becoming SW 1 foot
at 4 seconds and SE 1 foot at 7 seconds.
.SAT NIGHT THROUGH SUN NIGHT...SW winds 5 to 10 kt. Seas around
2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at
7 seconds.
.MON THROUGH TUE NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
Wave Detail: S 2 ft at 5 seconds and SE 1 foot at 9 seconds.

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.

$$

ANZ237-311800-
Block Island Sound-
104 AM EDT Fri May 31 2024

.REST OF TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 7 seconds and NE 1 foot at 3 seconds.
.FRI...N winds 5 to 10 kt, becoming SW in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds and N 1 foot at
3 seconds.
.FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and SW 1 foot
at 2 seconds.
.SAT...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas
around 2 ft in the morning, then 1 foot or less. Wave Detail: SE
2 ft at 7 seconds and W 1 foot at 3 seconds, becoming SW 1 foot
at 3 seconds and SE 1 foot at 7 seconds.
.SAT NIGHT THROUGH SUN NIGHT...SW winds 5 to 10 kt. Seas around
2 ft. Wave Detail: S 2 ft at 4 seconds and SE 1 foot at
7 seconds.
.MON THROUGH TUE NIGHT...SE winds 5 to 10 kt. Seas around 2 ft.
Wave Detail: S 1 foot at 4 seconds and SE 1 foot at 9 seconds.

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.

$$

ANZ230-311800-
Boston Harbor-
104 AM EDT Fri May 31 2024

.REST OF TONIGHT...NW winds 5 to 10 kt. Waves 1 foot or less.
.FRI...N winds 5 to 10 kt, becoming SE in the afternoon. Waves
1 foot or less.
.FRI NIGHT...SW winds around 5 kt, becoming NW after midnight.
Waves 1 foot or less.
.SAT...N winds around 5 kt, becoming E in the afternoon. Waves
1 foot or less.
.SAT NIGHT...S winds 5 to 10 kt, becoming SW after midnight.
Waves 1 foot or less.
.SUN AND SUN NIGHT...W winds 5 to 10 kt. Waves 1 foot or less.
.MON THROUGH TUE NIGHT...S winds 5 to 10 kt. Waves 1 foot or
less.

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.

$$

ANZ236-311800-
Narragansett Bay-
104 AM EDT Fri May 31 2024

.REST OF TONIGHT...NW winds 5 to 10 kt. Waves around 2 ft.
.FRI...N winds 5 to 10 kt, becoming SW in the afternoon. Waves
around 2 ft.
.FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Waves around 2 ft in the evening, then 1 foot or less.
.SAT...N winds around 5 kt, becoming S in the afternoon. Waves
1 foot or less.
.SAT NIGHT THROUGH SUN NIGHT...W winds 5 to 10 kt. Waves 1 foot
or less.
.MON THROUGH TUE NIGHT...S 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.

$$

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