Coastal Waters Forecast
Issued by NWS Boston, MA

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FZUS51 KBOX 171404
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1004 AM EDT Fri May 17 2024

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

ANZ200-180300-
1004 AM EDT Fri May 17 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
Generally dry weather in store for Friday save for a few light
showers across the southern waters associated with low pressure to
our southeast. Shower chances increase overnight tonight and
Saturday as low pressure shifts back north. High pressure builds in
late this weekend with dry conditions persisting through early next
week.

$$

ANZ250-180300-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1004 AM EDT Fri May 17 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SATURDAY NIGHT...

.THIS AFTERNOON...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas 4 to 5 ft. Wave Detail: SE 5 ft at 9 seconds and N 2 ft at
3 seconds.
.TONIGHT...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
6 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 and SE 1 foot at 11 seconds.
.MON THROUGH TUE NIGHT...S winds 10 to 15 kt with gusts up to
20 kt. Seas 3 to 5 ft. Wave Detail: E 4 ft at 8 seconds and S
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.

$$

ANZ251-180300-
Massachusetts Bay and Ipswich Bay-
1004 AM EDT Fri May 17 2024

.THIS AFTERNOON...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 E 3 ft at
9 seconds.
.TONIGHT...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 9 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 and N 1 foot at 3 seconds.
.MON THROUGH TUE NIGHT...S winds 10 to 15 kt. Seas 2 to 4 ft.
Wave Detail: E 4 ft at 8 seconds and S 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.

$$

ANZ231-180300-
Cape Cod Bay-
1004 AM EDT Fri May 17 2024

.THIS AFTERNOON...NE winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and N 2 ft at
3 seconds. A slight chance of showers.
.TONIGHT...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 N 2 ft at 4 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 N 2 ft at
3 seconds. A chance of showers. Vsby 1 NM or less in the morning.
.SAT NIGHT...N winds around 10 kt. Seas 2 to 4 ft. Wave Detail: E
3 ft at 8 seconds and N 1 foot at 3 seconds.
.SUN AND SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and N 2 ft at
4 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 N 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.

$$

ANZ254-180300-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1004 AM EDT Fri May 17 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SATURDAY NIGHT...

.THIS AFTERNOON...NE winds 15 to 20 kt with gusts up to 30 kt.
Seas 5 to 7 ft. Wave Detail: E 6 ft at 9 seconds and NE 2 ft at
4 seconds. A slight chance of showers. Vsby 1 NM or less.
.TONIGHT...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
3 seconds. A chance of showers in the morning with vsby 1 NM or
less.
.SAT NIGHT...N winds 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: E
6 ft at 8 seconds and NE 1 foot at 3 seconds.
.SUN AND SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas 4 to 6 ft. Wave Detail: E 5 ft at 8 seconds and N 1 foot at
3 seconds.
.MON THROUGH TUE NIGHT...S winds 5 to 10 kt. Seas 3 to 5 ft. Wave
Detail: E 4 ft at 8 seconds and S 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.

$$

ANZ255-180300-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1004 AM EDT Fri May 17 2024

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

.THIS AFTERNOON...NE winds 15 to 20 kt with gusts up to 30 kt.
Seas 5 to 7 ft. Wave Detail: E 6 ft at 8 seconds and NE 3 ft at
4 seconds. A slight chance of showers. Vsby 1 NM or less.
.TONIGHT...NE winds 15 to 20 kt with gusts up to 25 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. 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...N winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: E
5 ft at 8 seconds and N 2 ft at 4 seconds.
.SUN AND SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 5 ft. Wave Detail: E 4 ft at 8 seconds and N 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.

$$

ANZ256-180300-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1004 AM EDT Fri May 17 2024

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

.THIS AFTERNOON...NE winds 15 to 20 kt with gusts up to 25 kt.
Seas 4 to 6 ft. Wave Detail: E 6 ft at 8 seconds and N 2 ft at
4 seconds. A slight chance of showers. Vsby 1 NM or less.
.TONIGHT...NE winds around 15 kt with gusts up to 20 kt. Seas
4 to 6 ft. Wave Detail: E 6 ft at 8 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 6 ft at 9 seconds and NE 2 ft at
4 seconds.
.SAT NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 9 seconds and N 2 ft at 4 seconds.
.SUN AND 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 8 seconds and N 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 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.

$$

ANZ232-180300-
Nantucket Sound-
1004 AM EDT Fri May 17 2024

.THIS AFTERNOON...NE winds 15 to 20 kt with gusts up to 30 kt.
Seas 3 to 4 ft. Wave Detail: NE 3 ft at 4 seconds and E 3 ft at
8 seconds. A slight chance of showers. Vsby 1 NM or less,
increasing to 1 to 3 NM.
.TONIGHT...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 9 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 4 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...N winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: E
3 ft at 9 seconds and NE 2 ft at 3 seconds.
.SUN AND SUN 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 E 2 ft at
8 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.

$$

ANZ233-180300-
Vineyard Sound-
1004 AM EDT Fri May 17 2024

.THIS AFTERNOON...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 N 2 ft at
3 seconds.
.TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: E 3 ft at 8 seconds and NE 2 ft at 3 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: E 3 ft at 9 seconds and NE 1 foot at
3 seconds.
.SAT NIGHT...N winds 10 to 15 kt. Seas around 2 ft. Wave Detail:
E 2 ft at 8 seconds and N 1 foot at 4 seconds.
.SUN AND SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: N 1 foot at 4 seconds and E 1 foot
at 8 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 7 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.

$$

ANZ234-180300-
Buzzards Bay-
1004 AM EDT Fri May 17 2024

.THIS AFTERNOON...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: N 2 ft at 3 seconds and S 2 ft at
8 seconds.
.TONIGHT...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 E 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: E 2 ft at 9 seconds and NE 1 foot at
3 seconds.
.SAT NIGHT...N winds 10 to 15 kt. Seas around 2 ft. Wave Detail:
E 2 ft at 9 seconds and N 1 foot at 4 seconds.
.SUN AND SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and N 1 foot
at 4 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 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.

$$

ANZ235-180300-
Rhode Island Sound-
1004 AM EDT Fri May 17 2024

.THIS AFTERNOON...NE winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Wave Detail: SE 4 ft at 8 seconds and S 3 ft at
8 seconds.
.TONIGHT...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: E 3 ft at 9 seconds and NE 2 ft at 3 seconds.
.SAT NIGHT...N winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 8 seconds and NE 2 ft at 3 seconds.
.SUN AND SUN NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and SE 2 ft at
8 seconds.
.MON THROUGH TUE NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
Wave Detail: NE 2 ft at 3 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.

$$

ANZ237-180300-
Block Island Sound-
1004 AM EDT Fri May 17 2024

.THIS AFTERNOON...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. Wave Detail: SE 4 ft at 8 seconds and NE 2 ft at
3 seconds.
.TONIGHT...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 S 2 ft at 8 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...NE winds around 10 kt. Seas 2 to 3 ft. Wave Detail:
E 3 ft at 9 seconds and NE 1 foot at 3 seconds.
.SUN AND SUN NIGHT...NE winds around 10 kt. Seas 2 to 3 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 around 2 ft.
Wave Detail: E 2 ft at 4 seconds and E 2 ft at 7 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.

$$

ANZ230-180300-
Boston Harbor-
1004 AM EDT Fri May 17 2024

.THIS AFTERNOON...NE winds 10 to 15 kt. Waves around 2 ft.
.TONIGHT...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.

$$

ANZ236-180300-
Narragansett Bay-
1004 AM EDT Fri May 17 2024

.THIS AFTERNOON...NE winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft.
.TONIGHT...NE winds around 10 kt. Waves around 2 ft.
.SAT...NE winds around 10 kt. Waves around 2 ft.
.SAT NIGHT...N winds around 10 kt. Waves 2 to 3 ft.
.SUN AND 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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