Coastal Waters Forecast
Issued by NWS Boston, MA

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173
FZUS51 KBOX 310805
CWFBOX

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

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

ANZ200-312100-
404 AM EDT Fri May 31 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pres builds in from the west today 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.

$$

ANZ250-312100-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
404 AM EDT Fri May 31 2024

.TODAY...N winds around 10 kt with gusts up to 20 kt, becoming SW
this afternoon. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds
and E 2 ft at 7 seconds.
.TONIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds and W 1 foot at
3 seconds.
.SAT...NW winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds and NW 1 foot at
2 seconds.
.SAT NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
1 foot at 2 seconds and E 1 foot at 3 seconds.
.SUN...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
1 foot at 4 seconds and E 1 foot at 9 seconds.
.SUN NIGHT...S winds around 10 kt, becoming W after midnight.
Seas around 2 ft. Wave Detail: S 1 foot at 3 seconds and E 1 foot
at 5 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.

$$

ANZ251-312100-
Massachusetts Bay and Ipswich Bay-
404 AM EDT Fri May 31 2024

.TODAY...NW winds 5 to 10 kt, becoming SW this afternoon. Seas
around 2 ft. Wave Detail: E 2 ft at 7 seconds and N 1 foot at
4 seconds.
.TONIGHT...W 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 2 seconds and NE 1 foot at 4 seconds, becoming W 1 foot
at 2 seconds and NE 1 foot at 4 seconds.
.SAT...NW winds 5 to 10 kt, becoming SE 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 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 1 foot at 2 seconds and E 1 foot at 8 seconds.
.SUN...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
1 foot at 3 seconds and E 1 foot at 10 seconds.
.SUN NIGHT...S winds around 10 kt, becoming W after midnight.
Seas around 2 ft. Wave Detail: SE 1 foot at 4 seconds and E
1 foot at 9 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.

$$

ANZ231-312100-
Cape Cod Bay-
404 AM EDT Fri May 31 2024

.TODAY...N winds around 10 kt with gusts up to 20 kt, becoming W
this afternoon. Seas around 2 ft this morning, then 1 foot or
less. Wave Detail: N 2 ft at 4 seconds and SE 1 foot at
7 seconds, becoming N 1 foot at 4 seconds and SE 1 foot at
7 seconds.
.TONIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas
1 foot or less. Wave Detail: SW 1 foot at 3 seconds and N 1 foot
at 4 seconds.
.SAT...NW winds 5 to 10 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. Seas 1 foot or less. Wave
Detail: SE 1 foot at 3 seconds and SE 1 foot at 8 seconds.
.SUN...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S
1 foot at 2 seconds and E 1 foot at 3 seconds.
.SUN NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: S 1 foot at 2 seconds and E 1 foot at 4 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.

$$

ANZ254-312100-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
404 AM EDT Fri May 31 2024

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

$$

ANZ255-312100-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
404 AM EDT Fri May 31 2024

.TODAY...N winds around 10 kt with gusts up to 20 kt, becoming W
this afternoon. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 7 seconds
and N 1 foot at 4 seconds.
.TONIGHT...SW winds around 10 kt with gusts up to 20 kt, becoming
W after midnight. Seas around 2 ft. Wave Detail: W 2 ft at
3 seconds and SE 2 ft at 7 seconds.
.SAT...NW winds 5 to 10 kt, becoming W in the afternoon. Seas
around 2 ft. Wave Detail: W 2 ft at 4 seconds and SE 2 ft at
7 seconds.
.SAT NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SW 2 ft at 4 seconds and NE 1 foot at 4 seconds.
.SUN AND SUN NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: SW 2 ft at 4 seconds and NE 1 foot at 5 seconds.
.MON THROUGH TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft.
Wave Detail: E 3 ft at 8 seconds and E 2 ft at 3 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.

$$

ANZ256-312100-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
404 AM EDT Fri May 31 2024

.TODAY...N winds 5 to 10 kt, becoming W this afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds and N 1 foot at
3 seconds.
.TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming
NW after midnight. Seas around 2 ft. Wave Detail: W 2 ft at
3 seconds and SE 2 ft at 7 seconds.
.SAT...NW winds 5 to 10 kt, becoming SW with gusts up to 20 kt in
the afternoon. Seas around 2 ft. Wave Detail: W 2 ft at 4 seconds
and SE 2 ft at 7 seconds.
.SAT NIGHT...SW winds around 10 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and
SE 2 ft at 7 seconds.
.SUN...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 4 seconds and SE 1 foot at 8 seconds.
.SUN NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 4 seconds and SE 1 foot at 9 seconds. A chance of
showers after midnight.
.MON THROUGH TUE NIGHT...SE 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.

$$

ANZ232-312100-
Nantucket Sound-
404 AM EDT Fri May 31 2024

.TODAY...N winds around 10 kt with gusts up to 20 kt, becoming W
this afternoon. Seas around 2 ft. Wave Detail: N 1 foot at
4 seconds and SE 1 foot at 7 seconds.
.TONIGHT...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...NW winds 5 to 10 kt, becoming E in the afternoon. Seas
around 2 ft in the morning, then 1 foot or less. Wave Detail: NW
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 NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: SW 1 foot at 3 seconds and NE 1 foot at 4 seconds.
.SUN AND SUN NIGHT...SW winds 10 to 15 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...SE winds 5 to 10 kt. Seas 1 foot or
less. Wave Detail: W 1 foot at 3 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.

$$

ANZ233-312100-
Vineyard Sound-
404 AM EDT Fri May 31 2024

.TODAY...N winds 5 to 10 kt, becoming W this afternoon. Seas
around 2 ft. Wave Detail: N 1 foot at 3 seconds and S 1 foot at
7 seconds.
.TONIGHT...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...NW winds around 5 kt, becoming SW in the afternoon. Seas
around 2 ft in the morning, then 1 foot or less. Wave Detail: W
1 foot at 4 seconds and SE 1 foot at 7 seconds, becoming W 1 foot
at 4 seconds and NE 1 foot at 4 seconds.
.SAT NIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas
1 foot or less. Wave Detail: SW 1 foot at 3 seconds and E 1 foot
at 3 seconds.
.SUN AND SUN NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less.
Wave Detail: SW 1 foot at 4 seconds and SE 1 foot at 8 seconds.
.MON THROUGH TUE NIGHT...SE winds 5 to 10 kt. Seas 1 foot or
less. Wave Detail: SW 1 foot at 4 seconds and E 1 foot 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.

$$

ANZ234-312100-
Buzzards Bay-
404 AM EDT Fri May 31 2024

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

$$

ANZ235-312100-
Rhode Island Sound-
404 AM EDT Fri May 31 2024

.TODAY...N winds 5 to 10 kt, becoming W this afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds and N 1 foot at
3 seconds.
.TONIGHT...SW winds around 10 kt with gusts up to 20 kt, becoming
NW after midnight. Seas around 2 ft. Wave Detail: SW 2 ft at
3 seconds and SE 2 ft at 7 seconds.
.SAT...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds and W 1 foot at
4 seconds.
.SAT NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft in the evening, then 1 foot or less.
Wave Detail: SW 2 ft at 3 seconds and SE 1 foot at 7 seconds,
becoming SW 1 foot at 4 seconds and SE 1 foot at 7 seconds.
.SUN AND SUN NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 4 seconds and SE 1 foot at 8 seconds.
.MON THROUGH TUE NIGHT...SE winds 5 to 10 kt. Seas around 2 ft.
Wave Detail: S 2 ft 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.

$$

ANZ237-312100-
Block Island Sound-
404 AM EDT Fri May 31 2024

.TODAY...N winds 5 to 10 kt, becoming W this afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds and N 1 foot at
3 seconds.
.TONIGHT...W winds around 10 kt, becoming NW after midnight. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds and SW 1 foot at
3 seconds.
.SAT...W winds 5 to 10 kt, becoming SW with gusts up to 20 kt in
the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at
7 seconds and W 1 foot at 3 seconds.
.SAT NIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft in the evening, then 1 foot or less.
Wave Detail: SW 1 foot at 3 seconds and SE 1 foot at 7 seconds,
becoming W 1 foot at 3 seconds and SE 1 foot at 7 seconds.
.SUN...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW
1 foot at 4 seconds and SE 1 foot at 8 seconds.
.SUN NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
S 1 foot at 4 seconds and SE 1 foot at 9 seconds. A chance of
showers after midnight.
.MON THROUGH TUE NIGHT...SE 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.

$$

ANZ230-312100-
Boston Harbor-
404 AM EDT Fri May 31 2024

.TODAY...NW winds 5 to 10 kt, becoming SW with gusts up to 20 kt
this afternoon. Waves 1 foot or less.
.TONIGHT...W winds 5 to 10 kt. Waves 1 foot or less.
.SAT...NW winds around 5 kt, becoming E in the afternoon. Waves
1 foot or less.
.SAT NIGHT...SE winds 5 to 10 kt. Waves 1 foot or less.
.SUN...SE winds 5 to 10 kt. Waves 1 foot or less.
.SUN NIGHT...S winds 5 to 10 kt, becoming W after midnight. 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.

$$

ANZ236-312100-
Narragansett Bay-
404 AM EDT Fri May 31 2024

.TODAY...N winds 5 to 10 kt, becoming W this afternoon. Waves
1 foot or less.
.TONIGHT...W winds 5 to 10 kt, becoming NW after midnight. Waves
1 foot or less.
.SAT...W winds 5 to 10 kt. Waves 1 foot or less.
.SAT NIGHT...SW winds 5 to 10 kt, becoming W after midnight.
Waves 1 foot or less.
.SUN AND SUN NIGHT...SW winds 5 to 10 kt. Waves around 2 ft.
.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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