Coastal Waters Forecast
Issued by NWS Boston, MA

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FZUS51 KBOX 170726
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
325 AM EDT Fri May 17 2024

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

ANZ200-172000-
325 AM EDT Fri May 17 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
Low pres S of New England will move slowly SE through tonight,
bringing a period of enhanced E to ENE winds to the waters.
High pres then builds in from Atlc Canada into srn New England Fri
into this weekend, then should remain in place into early next week.

$$

ANZ250-172000-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
325 AM EDT Fri May 17 2024

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

.REST OF TONIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. Wave
Detail: SE 5 ft at 9 seconds and NE 1 foot at 4 seconds.
.FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: SE 5 ft at 9 seconds and NE 1 foot at
4 seconds.
.FRI NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
4 to 6 ft. Wave Detail: E 6 ft at 9 seconds and NE 1 foot at
3 seconds. A chance of showers. Vsby 1 to 3 NM after midnight.
.SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to
6 ft. Wave Detail: E 6 ft at 9 seconds. A chance of showers. Vsby
1 NM or less in the morning.
.SAT NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: E
5 ft at 8 seconds. A chance of showers in the evening.
.SUN AND SUN NIGHT...NE winds 5 to 10 kt. Seas 4 to 5 ft. Wave
Detail: E 5 ft at 8 seconds.
.MON THROUGH TUE NIGHT...S winds 10 to 15 kt with gusts up to
20 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.

$$

ANZ251-172000-
Massachusetts Bay and Ipswich Bay-
325 AM EDT Fri May 17 2024

.REST OF TONIGHT...NE winds around 10 kt. Seas 2 to 3 ft. Wave
Detail: E 3 ft at 9 seconds and NE 2 ft at 5 seconds.
.FRI...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft
at 9 seconds and NE 2 ft at 4 seconds.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: E
4 ft at 9 seconds and NE 1 foot at 3 seconds. A chance of showers
after midnight.
.SAT...NE winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft
at 9 seconds and NE 1 foot at 3 seconds. A chance of showers.
.SAT NIGHT...N winds around 10 kt. Seas 3 to 5 ft. Wave Detail: E
5 ft at 8 seconds and NE 1 foot at 3 seconds. A chance of showers
in the evening.
.SUN AND SUN NIGHT...NE winds 5 to 10 kt. Seas 3 to 4 ft. Wave
Detail: E 4 ft at 8 seconds.
.MON THROUGH TUE NIGHT...S 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.

$$

ANZ231-172000-
Cape Cod Bay-
325 AM EDT Fri May 17 2024

.REST OF TONIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: SE 3 ft at 9 seconds and NE 2 ft at 3 seconds.
.FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: E 3 ft at 9 seconds and NE 2 ft at 3 seconds.
.FRI NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. Wave Detail: E 4 ft at 9 seconds and NE 2 ft at
3 seconds. A chance of showers.
.SAT...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 2 to 4 ft. Wave Detail: E 4 ft at 9 seconds and NE 1 foot at
3 seconds. A chance of showers. Vsby 1 NM or less in the morning.
.SAT NIGHT THROUGH SUN NIGHT...NE winds 10 to 15 kt with gusts up
to 20 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft at 8 seconds and NE
1 foot at 3 seconds.
.MON THROUGH TUE NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: E 3 ft at 8 seconds and NE 1 foot 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.

$$

ANZ254-172000-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
325 AM EDT Fri May 17 2024

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

.REST OF TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt.
Seas 5 to 7 ft. Wave Detail: SE 7 ft at 9 seconds and NE 1 foot
at 4 seconds. A chance of showers. Vsby 1 NM or less.
.FRI...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to
7 ft. Wave Detail: SE 7 ft at 9 seconds and NE 1 foot at
3 seconds. A chance of showers in the morning with vsby 1 NM or
less.
.FRI NIGHT...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
3 seconds. A chance of showers. Vsby 1 NM or less after midnight.
.SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to
8 ft. Wave Detail: E 7 ft at 9 seconds and NE 1 foot at
2 seconds. A chance of showers in the morning with vsby 1 NM or
less.
.SAT NIGHT THROUGH SUN NIGHT...NE winds 10 to 15 kt with gusts up
to 20 kt. Seas 4 to 6 ft. Wave Detail: E 6 ft at 8 seconds.
.MON THROUGH TUE NIGHT...S winds 5 to 10 kt. Seas 3 to 5 ft. Wave
Detail: E 5 ft at 8 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.

$$

ANZ255-172000-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
325 AM EDT Fri May 17 2024

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

.REST OF TONIGHT...NE winds around 20 kt with gusts up to 25 kt.
Seas 5 to 8 ft. Wave Detail: E 7 ft at 9 seconds and NE 2 ft at
4 seconds. A chance of showers. Vsby 1 NM or less.
.FRI...NE winds around 20 kt with gusts up to 30 kt. Seas 5 to
8 ft. Wave Detail: E 7 ft at 9 seconds and NE 2 ft at 4 seconds.
A chance of showers in the morning with vsby 1 NM or less.
.FRI NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas
5 to 7 ft. Wave Detail: E 6 ft at 8 seconds and NE 2 ft at
4 seconds. A chance of showers. Vsby 1 NM or less after midnight.
.SAT...NE winds around 15 kt with gusts up to 20 kt. Seas 5 to
7 ft. Wave Detail: E 6 ft at 9 seconds and NE 2 ft at 4 seconds.
A chance of showers in the morning with vsby 1 NM or less.
.SAT NIGHT THROUGH SUN NIGHT...NE winds 10 to 15 kt with gusts up
to 20 kt. Seas 3 to 5 ft. Wave Detail: E 5 ft at 8 seconds and NE
2 ft at 4 seconds.
.MON...NE winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: E 4 ft
at 8 seconds and NE 2 ft at 4 seconds.
.MON NIGHT THROUGH TUE NIGHT...S winds around 10 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.

$$

ANZ256-172000-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
325 AM EDT Fri May 17 2024

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

.REST OF TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt.
Seas 5 to 7 ft. Wave Detail: E 7 ft at 9 seconds and NE 2 ft at
4 seconds. A slight chance of showers. Vsby 1 NM or less.
.FRI...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to
7 ft. Wave Detail: E 7 ft at 8 seconds and NE 3 ft at 4 seconds.
.FRI NIGHT...NE winds around 15 kt with gusts up to 20 kt. Seas
4 to 6 ft. Wave Detail: E 6 ft at 9 seconds and NE 2 ft at
4 seconds.
.SAT...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 4 to 6 ft. Wave Detail: E 5 ft at 9 seconds and N 1 foot at
4 seconds.
.SAT NIGHT THROUGH SUN NIGHT...NE winds 10 to 15 kt with gusts up
to 20 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 9 seconds and NE
2 ft at 4 seconds.
.MON THROUGH TUE NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. Wave
Detail: E 3 ft at 8 seconds and S 2 ft 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.

$$

ANZ232-172000-
Nantucket Sound-
325 AM EDT Fri May 17 2024

.REST OF TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt.
Seas 3 to 5 ft. Wave Detail: NE 3 ft at 4 seconds and SE 3 ft at
9 seconds. A slight chance of showers. Vsby 1 NM or less.
.FRI...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: NE 3 ft at 4 seconds and SE 3 ft at 8 seconds.
.FRI NIGHT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: E
3 ft at 8 seconds and NE 2 ft at 4 seconds. A chance of showers.
.SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: E 3 ft at 9 seconds and NE 2 ft at 3 seconds.
A chance of showers in the morning with vsby 1 NM or less.
.SAT NIGHT THROUGH SUN NIGHT...NE winds 10 to 15 kt with gusts up
to 20 kt. Seas 2 to 4 ft. Wave Detail: E 3 ft at 9 seconds and NE
2 ft at 3 seconds.
.MON THROUGH TUE NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.
Wave Detail: NE 2 ft at 3 seconds and E 2 ft at 8 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.

$$

ANZ233-172000-
Vineyard Sound-
325 AM EDT Fri May 17 2024

.REST OF TONIGHT...NE winds around 15 kt with gusts up to 20 kt.
Seas around 3 ft. Wave Detail: NE 2 ft at 3 seconds and SE 2 ft
at 9 seconds. A slight chance of showers. Vsby 1 to 3 NM.
.FRI...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 SE 2 ft at 8 seconds.
.FRI NIGHT...NE 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 SE 2 ft at
8 seconds. A chance of showers after midnight.
.SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SE 2 ft at 8 seconds and NE 1 foot at
3 seconds.
.SAT NIGHT THROUGH SUN NIGHT...NE winds 10 to 15 kt with gusts up
to 20 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and
NE 1 foot at 3 seconds.
.MON THROUGH TUE NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
Wave Detail: NE 1 foot at 3 seconds and E 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.

$$

ANZ234-172000-
Buzzards Bay-
325 AM EDT Fri May 17 2024

.REST OF TONIGHT...NE 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 SE 2 ft at
8 seconds. A slight chance of showers. Vsby 1 NM or less.
.FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. Wave Detail: NE 2 ft at 3 seconds and SE 2 ft at 8 seconds.
.FRI NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft. Wave Detail: NE 2 ft at 3 seconds and SE 2 ft at
8 seconds. A chance of showers after midnight.
.SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. Wave Detail: SE 2 ft at 8 seconds and NE 1 foot at
3 seconds.
.SAT NIGHT THROUGH SUN NIGHT...NE winds 10 to 15 kt with gusts up
to 20 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and
NE 1 foot at 3 seconds.
.MON THROUGH TUE NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
Wave Detail: NE 1 foot at 2 seconds and E 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.

$$

ANZ235-172000-
Rhode Island Sound-
325 AM EDT Fri May 17 2024

.REST OF TONIGHT...NE winds around 15 kt with gusts up to 25 kt.
Seas 3 to 5 ft. Wave Detail: SE 5 ft at 9 seconds and NE 2 ft at
4 seconds. A slight chance of showers. Vsby 1 to 3 NM.
.FRI...NE winds around 15 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: SE 5 ft at 9 seconds and NE 3 ft at 4 seconds.
.FRI NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. Wave Detail: SE 4 ft at 9 seconds and NE 2 ft at
4 seconds.
.SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 9 seconds and NE 2 ft at 3 seconds.
.SAT NIGHT THROUGH SUN NIGHT...NE winds 10 to 15 kt with gusts up
to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and
NE 2 ft at 3 seconds.
.MON THROUGH TUE NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
Wave Detail: NE 2 ft at 4 seconds and SE 2 ft at 8 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.

$$

ANZ237-172000-
Block Island Sound-
325 AM EDT Fri May 17 2024

.REST OF TONIGHT...NE winds around 15 kt with gusts up to 25 kt.
Seas 3 to 5 ft. Wave Detail: SE 5 ft at 9 seconds and NE 2 ft at
4 seconds.
.FRI...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: SE 5 ft at 9 seconds and NE 2 ft at 4 seconds.
.FRI NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. Wave Detail: E 4 ft at 9 seconds and NE 1 foot at
4 seconds.
.SAT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft
at 9 seconds and NE 1 foot at 3 seconds.
.SAT NIGHT THROUGH SUN NIGHT...NE winds around 10 kt. Seas 2 to
3 ft. Wave Detail: E 3 ft at 9 seconds and NE 2 ft at 4 seconds.
.MON THROUGH TUE NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
Wave Detail: E 2 ft at 5 seconds and SE 2 ft at 8 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.

$$

ANZ230-172000-
Boston Harbor-
325 AM EDT Fri May 17 2024

.REST OF TONIGHT...NE winds around 10 kt. Waves 1 foot or less.
.FRI...NE winds 10 to 15 kt. Waves around 2 ft.
.FRI NIGHT...NE winds around 10 kt. Waves around 2 ft in the
evening, then 1 foot or less. A chance of showers after midnight.
.SAT...NE winds around 10 kt. Waves 2 to 3 ft. A chance of
showers.
.SAT NIGHT...NE winds 5 to 10 kt. Waves 2 to 3 ft in the evening,
then 1 foot or less. At the outer harbor entrance, waves 2 to
4 ft. A chance of showers in the evening.
.SUN AND SUN NIGHT...NE winds 5 to 10 kt. Waves 2 to 3 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.

$$

ANZ236-172000-
Narragansett Bay-
325 AM EDT Fri May 17 2024

.REST OF TONIGHT...NE winds around 10 kt with gusts up to 20 kt.
Waves 2 to 3 ft.
.FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to
3 ft.
.FRI NIGHT...NE winds around 10 kt. Waves around 2 ft.
.SAT...NE winds around 10 kt. Waves around 2 ft.
.SAT NIGHT THROUGH SUN NIGHT...NE winds 5 to 10 kt. Waves 2 to
3 ft.
.MON THROUGH TUE NIGHT...SW 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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