Coastal Waters Forecast
Issued by NWS Boston, MA

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969
FZUS51 KBOX 141706
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
106 PM EDT Sat Jun 14 2025

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

ANZ200-150600-
106 PM EDT Sat Jun 14 2025

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pres from the Maritimes builds into the ern MA waters
providing elevated easterly winds Sun. This high will move offshore
Mon then another low pres will track S of the waters Tue. Weak high
pres builds into the waters Wed.

$$

ANZ250-150600-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
106 PM EDT Sat Jun 14 2025

.THIS AFTERNOON...E winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: E 2 ft at 4 seconds and SE 1 foot
at 8 seconds. A chance of showers.
.TONIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 5 seconds.
.SUN...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at
5 seconds.
.SUN NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 7 seconds.
.MON AND MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds.
.TUE THROUGH WED NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas 2 to 3 ft. Wave Detail: E 3 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.

$$

ANZ251-150600-
Massachusetts Bay and Ipswich Bay-
106 PM EDT Sat Jun 14 2025

.THIS AFTERNOON...E winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: E 2 ft at 3 seconds and E 2 ft at
9 seconds. A chance of showers.
.TONIGHT...E winds 10 to 15 kt, becoming NE 5 to 10 kt after
midnight. Seas around 2 ft. Wave Detail: E 2 ft at 4 seconds and
E 2 ft at 7 seconds.
.SUN...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft
at 5 seconds.
.SUN NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
E 2 ft at 5 seconds.
.MON AND MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds.
.TUE THROUGH WED NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds and S
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.

$$

ANZ231-150600-
Cape Cod Bay-
106 PM EDT Sat Jun 14 2025

.THIS AFTERNOON...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: E 2 ft at 3 seconds and SE 2 ft at
7 seconds. A chance of showers.
.TONIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the evening.
Seas around 2 ft. Wave Detail: E 2 ft at 4 seconds and SE 1 foot
at 8 seconds.
.SUN...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft
at 7 seconds and NE 1 foot at 3 seconds.
.SUN NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 6 seconds and NE 1 foot at 3 seconds.
.MON AND MON NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 6 seconds and E 1 foot at 2 seconds.
.TUE THROUGH WED NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas around 2 ft. Wave Detail: E 2 ft at 3 seconds and S
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.

$$

ANZ254-150600-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
106 PM EDT Sat Jun 14 2025

.THIS AFTERNOON...E winds around 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. Wave Detail: SE 3 ft at 7 seconds and E 2 ft at
4 seconds. Patchy fog. A chance of showers. Vsby 1 to 3 NM.
.TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: E 3 ft at 5 seconds and SE 1 foot at
9 seconds.
.SUN...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 7 seconds and NE 1 foot at 4 seconds.
.SUN NIGHT...E winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: SE
3 ft at 7 seconds.
.MON AND MON NIGHT...SE winds 5 to 10 kt. Seas 2 to 4 ft. Wave
Detail: E 3 ft at 8 seconds and S 1 foot at 7 seconds.
.TUE THROUGH WED NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas 2 to 3 ft. Wave Detail: SE 3 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.

$$

ANZ255-150600-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
106 PM EDT Sat Jun 14 2025

.THIS AFTERNOON...NE winds 15 to 20 kt with gusts up to 25 kt.
Seas 3 to 4 ft. Wave Detail: E 4 ft at 5 seconds and SE 2 ft at
9 seconds. Patchy fog. Showers likely. Vsby 1 to 3 NM.
.TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft. Wave Detail: E 4 ft at 5 seconds and SE 1 foot at
9 seconds. A chance of showers in the evening.
.SUN...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Wave Detail: SE 4 ft at 7 seconds and NE 2 ft at 4 seconds.
.SUN NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: SE
3 ft at 7 seconds and NE 1 foot at 3 seconds.
.MON AND MON NIGHT...E winds around 10 kt. Seas 2 to 4 ft. Wave
Detail: E 3 ft at 8 seconds and S 2 ft at 7 seconds.
.TUE THROUGH WED NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft.
Wave Detail: SE 3 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.

$$

ANZ256-150600-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
106 PM EDT Sat Jun 14 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THIS AFTERNOON...NE winds 15 to 20 kt with gusts up to 25 kt.
Seas 3 to 4 ft. Wave Detail: E 4 ft at 5 seconds and SE 2 ft at
9 seconds. Patchy fog. Showers likely. Vsby 1 to 3 NM.
.TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft. Wave Detail: E 4 ft at 5 seconds and SE 1 foot at
9 seconds. A chance of showers in the evening.
.SUN...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Wave Detail: SE 4 ft at 7 seconds and NE 1 foot at
4 seconds.
.SUN NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE
3 ft at 7 seconds and NE 1 foot at 3 seconds.
.MON AND MON NIGHT...E winds around 10 kt. Seas 3 to 4 ft. Wave
Detail: SE 3 ft at 7 seconds.
.TUE THROUGH WED NIGHT...SW winds 10 to 15 kt. Seas around 3 ft.
Wave Detail: E 3 ft at 7 seconds and S 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.

$$

ANZ232-150600-
Nantucket Sound-
106 PM EDT Sat Jun 14 2025

.THIS AFTERNOON...NE winds 15 to 20 kt. Seas around 3 ft. Wave
Detail: E 2 ft at 5 seconds. Patchy fog. Showers likely. Vsby
1 to 3 NM.
.TONIGHT...E winds 15 to 20 kt, becoming NE 10 to 15 kt after
midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft at 4 seconds and SE
2 ft at 7 seconds. A chance of showers in the evening.
.SUN...NE winds 10 to 15 kt. Seas around 2 ft. Wave Detail: NE
2 ft at 4 seconds and SE 2 ft at 7 seconds.
.SUN NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 7 seconds and E 1 foot at 3 seconds.
.MON AND MON NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 7 seconds and E 1 foot at 3 seconds.
.TUE THROUGH WED NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and NE
1 foot at 2 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.

$$

ANZ233-150600-
Vineyard Sound-
106 PM EDT Sat Jun 14 2025

.THIS AFTERNOON...NE winds 15 to 20 kt. Seas around 3 ft. Wave
Detail: NE 2 ft at 3 seconds and SE 2 ft at 6 seconds. Patchy
fog. Showers likely.
.TONIGHT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. Seas 2 to 3 ft. Wave Detail: E 2 ft at 4 seconds and S
1 foot at 8 seconds. A chance of showers in the evening.
.SUN...NE winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 7 seconds and NE 1 foot at 3 seconds.
.SUN NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 7 seconds and NE 1 foot at 3 seconds.
.MON AND MON NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 7 seconds and NE 1 foot at 2 seconds.
.TUE THROUGH WED NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas around 2 ft. Wave Detail: NE 1 foot at 2 seconds and
SE 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.

$$

ANZ234-150600-
Buzzards Bay-
106 PM EDT Sat Jun 14 2025

.THIS AFTERNOON...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 6 seconds. Showers likely.
.TONIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds and SE
2 ft at 6 seconds. A chance of showers in the evening.
.SUN...NE winds 10 to 15 kt. Seas around 2 ft. Wave Detail: E
2 ft at 4 seconds and S 1 foot at 8 seconds.
.SUN NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 7 seconds and E 1 foot at 2 seconds.
.MON AND MON NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 7 seconds and E 1 foot at 2 seconds.
.TUE THROUGH WED NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas around 2 ft. Wave Detail: SE 1 foot at 6 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.

$$

ANZ235-150600-
Rhode Island Sound-
106 PM EDT Sat Jun 14 2025

.THIS AFTERNOON...NE winds 15 to 20 kt with gusts up to 25 kt.
Seas around 3 ft. Wave Detail: E 3 ft at 5 seconds and SE 2 ft at
9 seconds. Patchy fog. Showers likely. Vsby 1 to 3 NM.
.TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
3 ft. Wave Detail: E 3 ft at 5 seconds and SE 1 foot at
9 seconds. A chance of showers in the evening.
.SUN...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and NE 2 ft at
3 seconds.
.SUN NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 7 seconds and NE 1 foot at 3 seconds.
.MON AND MON NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: SE 3 ft at 8 seconds and S 2 ft at 7 seconds.
.TUE THROUGH WED NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and S
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.

$$

ANZ237-150600-
Block Island Sound-
106 PM EDT Sat Jun 14 2025

.THIS AFTERNOON...NE winds 15 to 20 kt with gusts up to 25 kt.
Seas around 3 ft. Wave Detail: E 3 ft at 5 seconds and SE 2 ft at
8 seconds. Patchy fog. A chance of showers. Vsby 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 2 to 4 ft. Wave Detail: E 3 ft
at 5 seconds and SE 1 foot at 9 seconds. A chance of showers in
the evening.
.SUN...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 7 seconds and NE 2 ft at 4 seconds.
.SUN NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 7 seconds and NE 1 foot at 3 seconds.
.MON AND MON NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: E 3 ft at 8 seconds and S 2 ft at 7 seconds.
.TUE THROUGH WED NIGHT...SW winds 10 to 15 kt. Seas around 2 ft.
Wave Detail: E 2 ft at 7 seconds and S 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.

$$

ANZ230-150600-
Boston Harbor-
106 PM EDT Sat Jun 14 2025

.THIS AFTERNOON...E winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft. A chance of showers.
.TONIGHT...NE winds 5 to 10 kt. Waves around 2 ft in the evening,
then 1 foot or less.
.SUN...E winds 5 to 10 kt. Waves 1 foot or less.
.SUN NIGHT...SE winds 5 to 10 kt. Waves 1 foot or less.
.MON...SE winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Waves 1 foot or less, then around 2 ft in the
afternoon.
.MON NIGHT...S winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Waves around 2 ft in the evening, then 1 foot or less.
.TUE THROUGH WED NIGHT...SW winds 10 to 15 kt with gusts up to
20 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.

$$

ANZ236-150600-
Narragansett Bay-
106 PM EDT Sat Jun 14 2025

.THIS AFTERNOON...NE winds 10 to 15 kt with gusts up to 20 kt.
Waves 2 to 3 ft. Showers likely.
.TONIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Waves around 2 ft.
.SUN...NE winds around 10 kt, becoming E in the afternoon. Waves
around 2 ft.
.SUN NIGHT...E winds 5 to 10 kt. Waves around 2 ft.
.MON AND MON NIGHT...SE winds 5 to 10 kt. Waves around 2 ft.
.TUE THROUGH WED NIGHT...SW winds 10 to 15 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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