317
FZUS51 KBOX 211804
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
104 PM EST Fri Feb 21 2025

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

ANZ200-220700-
104 PM EST Fri Feb 21 2025

.Synopsis for Massachusetts and Rhode Island coastal waters...
Low pres passes east of the Canadian Maritimes today with high pres
in the central plains creating gusty NW winds into tonight. High
pres takes control of our waters this weekend before it moves east
of the region by early next week.

$$

ANZ250-220700-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
104 PM EST Fri Feb 21 2025

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

.THIS AFTERNOON...NW winds around 20 kt with gusts up to 30 kt.
Seas 4 to 6 ft. Wave Detail: N 4 ft at 6 seconds and SE 2 ft at
10 seconds. Light freezing spray.
.TONIGHT...NW winds 20 to 25 kt, diminishing to 15 to 20 kt after
midnight. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: N 5 ft
at 6 seconds and SE 2 ft at 9 seconds. Light freezing spray.
.SAT...NW winds 10 to 15 kt, becoming W in the afternoon. Gusts
up to 25 kt. Seas 2 to 4 ft. Wave Detail: N 4 ft at 6 seconds and
SE 1 foot at 10 seconds.
.SAT NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and NE 1 foot at
6 seconds.
.SUN AND SUN NIGHT...W winds 15 to 20 kt. Seas 2 to 3 ft. Wave
Detail: W 3 ft at 4 seconds.
.MON THROUGH TUE...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds.
.TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. A chance of rain.

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.

$$

ANZ251-220700-
Massachusetts Bay and Ipswich Bay-
104 PM EST Fri Feb 21 2025

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

.THIS AFTERNOON...NW winds around 20 kt with gusts up to 30 kt.
Seas around 3 ft. Wave Detail: N 3 ft at 5 seconds and SE 1 foot
at 10 seconds. Light freezing spray.
.TONIGHT...NW winds 20 to 25 kt, diminishing to 15 to 20 kt after
midnight. Gusts up to 30 kt. Seas 3 to 4 ft. Wave Detail: N 3 ft
at 5 seconds and SE 1 foot at 9 seconds. Light freezing spray.
.SAT...NW winds 10 to 15 kt, becoming W in the afternoon. Gusts
up to 25 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft at 5 seconds and
SE 1 foot at 9 seconds.
.SAT NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas
around 2 ft. Wave Detail: SW 2 ft at 3 seconds and NE 1 foot at
6 seconds.
.SUN AND SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: W 2 ft at 3 seconds and E 1 foot
at 6 seconds.
.MON THROUGH TUE NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas around 2 ft. Wave Detail: 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.

$$

ANZ231-220700-
Cape Cod Bay-
104 PM EST Fri Feb 21 2025

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

.THIS AFTERNOON...NW winds around 20 kt with gusts up to 30 kt.
Seas 2 to 4 ft. Wave Detail: N 4 ft at 6 seconds and SE 1 foot at
9 seconds. Light freezing spray.
.TONIGHT...NW winds 20 to 25 kt, diminishing to 15 to 20 kt after
midnight. Gusts up to 30 kt. Seas 3 to 4 ft. Wave Detail: N 4 ft
at 6 seconds and SE 1 foot at 9 seconds. Light freezing spray.
.SAT...NW winds 10 to 15 kt, becoming W in the afternoon. Gusts
up to 25 kt. Seas 2 to 4 ft. Wave Detail: N 4 ft at 6 seconds and
SE 1 foot at 9 seconds.
.SAT NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft. Wave Detail: W 2 ft at 4 seconds and N
2 ft at 7 seconds.
.SUN AND SUN NIGHT...W winds 10 to 15 kt. Seas around 2 ft. Wave
Detail: W 1 foot at 3 seconds and NE 1 foot at 6 seconds.
.MON THROUGH TUE...SW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SW 1 foot at 3 seconds and SE 1 foot at 3 seconds.
.TUE NIGHT...SW winds around 10 kt. Seas around 2 ft. A chance of
rain.

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.

$$

ANZ254-220700-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
104 PM EST Fri Feb 21 2025

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

.THIS AFTERNOON...NW winds around 20 kt with gusts up to 30 kt.
Seas 4 to 6 ft. Wave Detail: N 5 ft at 7 seconds and S 3 ft at
9 seconds.
.TONIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to
6 ft. Wave Detail: N 5 ft at 7 seconds and S 2 ft at 9 seconds.
Light freezing spray.
.SAT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: N 4 ft at 7 seconds and S 1 foot at
10 seconds.
.SAT NIGHT...W winds around 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and N 2 ft at
7 seconds.
.SUN AND SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. Wave Detail: W 3 ft at 4 seconds and NE 1 foot at
6 seconds.
.MON THROUGH TUE NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 9 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.

$$

ANZ255-220700-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
104 PM EST Fri Feb 21 2025

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

.THIS AFTERNOON...NW winds 15 to 20 kt with gusts up to 25 kt.
Seas 4 to 6 ft. Wave Detail: W 5 ft at 7 seconds and SE 3 ft at
10 seconds.
.TONIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to
6 ft. Wave Detail: W 5 ft at 7 seconds and NE 2 ft at 7 seconds.
Light freezing spray.
.SAT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: W 4 ft at 6 seconds and NE 1 foot at
7 seconds.
.SAT NIGHT...W winds around 15 kt with gusts up to 25 kt. Seas
2 to 4 ft. Wave Detail: W 4 ft at 5 seconds and NE 1 foot at
8 seconds.
.SUN AND SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. Wave Detail: SW 4 ft at 6 seconds and NE 1 foot
at 8 seconds.
.MON THROUGH TUE NIGHT...SW winds 10 to 15 kt. Seas 2 to 4 ft.
Wave Detail: S 4 ft at 8 seconds and SW 3 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.

$$

ANZ256-220700-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
104 PM EST Fri Feb 21 2025

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

.THIS AFTERNOON...NW winds 20 to 25 kt with gusts up to 30 kt.
Seas 5 to 6 ft. Wave Detail: N 5 ft at 5 seconds and SE 3 ft at
9 seconds.
.TONIGHT...NW winds 20 to 25 kt, diminishing to 15 to 20 kt after
midnight. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: N 5 ft
at 5 seconds and SE 2 ft at 9 seconds. Light freezing spray.
.SAT...W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: N 4 ft at 6 seconds and SE 1 foot at
9 seconds.
.SAT NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and E 1 foot at
8 seconds.
.SUN AND SUN NIGHT...W winds 15 to 20 kt. Seas 2 to 4 ft. Wave
Detail: SW 4 ft at 6 seconds and E 1 foot at 8 seconds.
.MON THROUGH TUE...SW winds 10 to 15 kt. Seas 2 to 4 ft. Wave
Detail: S 4 ft at 9 seconds and SW 3 ft at 5 seconds.
.TUE NIGHT...SW winds 10 to 15 kt. Seas 4 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.

$$

ANZ232-220700-
Nantucket Sound-
104 PM EST Fri Feb 21 2025

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

.THIS AFTERNOON...NW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Wave Detail: N 3 ft at 5 seconds and S 1 foot at
9 seconds.
.TONIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to
3 ft. Wave Detail: NW 3 ft at 4 seconds and NE 2 ft at 7 seconds.
Light freezing spray in the evening.
.SAT...NW winds 10 to 15 kt, becoming W in the afternoon. Gusts
up to 25 kt. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 4 seconds
and NE 1 foot at 7 seconds.
.SAT NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and NE
1 foot at 8 seconds.
.SUN AND SUN NIGHT...W winds 10 to 15 kt. Seas around 2 ft. Wave
Detail: W 2 ft at 4 seconds and NE 1 foot at 7 seconds.
.MON THROUGH TUE NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
Wave Detail: SW 2 ft at 4 seconds and S 2 ft 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.

$$

ANZ233-220700-
Vineyard Sound-
104 PM EST Fri Feb 21 2025

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

.THIS AFTERNOON...NW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Wave Detail: N 3 ft at 6 seconds and S 2 ft at
9 seconds.
.TONIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to
3 ft. Wave Detail: N 3 ft at 6 seconds and S 1 foot at 9 seconds.
.SAT...NW winds 10 to 15 kt, becoming W in the afternoon. Gusts
up to 25 kt. Seas around 2 ft. Wave Detail: N 2 ft at 6 seconds
and SE 1 foot at 9 seconds.
.SAT NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and NE 1 foot at
8 seconds.
.SUN AND SUN NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: SW 3 ft at 5 seconds and NE 1 foot at 8 seconds.
.MON THROUGH TUE NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft.
Wave Detail: SW 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.

$$

ANZ234-220700-
Buzzards Bay-
104 PM EST Fri Feb 21 2025

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

.THIS AFTERNOON...NW winds around 15 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Wave Detail: N 2 ft at 5 seconds and S 1 foot at
9 seconds.
.TONIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. Gusts up to 30 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft
at 5 seconds and S 1 foot at 9 seconds.
.SAT...NW winds 10 to 15 kt, becoming W in the afternoon. Gusts
up to 25 kt. Seas around 2 ft. Wave Detail: NW 2 ft at 4 seconds
and NE 1 foot at 7 seconds.
.SAT NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and NE 1 foot at
7 seconds.
.SUN AND SUN NIGHT...W winds 10 to 15 kt. Seas around 2 ft. Wave
Detail: SW 2 ft at 5 seconds and NE 1 foot at 7 seconds.
.MON THROUGH TUE NIGHT...SW winds 10 to 15 kt. Seas around 2 ft.
Wave Detail: SW 2 ft at 4 seconds and S 2 ft 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.

$$

ANZ235-220700-
Rhode Island Sound-
104 PM EST Fri Feb 21 2025

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

.THIS AFTERNOON...NW winds around 20 kt with gusts up to 25 kt.
Seas 3 to 4 ft. Wave Detail: N 4 ft at 5 seconds and S 2 ft at
10 seconds.
.TONIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to
4 ft. Wave Detail: N 4 ft at 6 seconds and SE 2 ft at 9 seconds.
Light freezing spray.
.SAT...NW winds 10 to 15 kt, becoming W in the afternoon. Gusts
up to 25 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft at 5 seconds and
SE 1 foot at 8 seconds.
.SAT NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and NE 1 foot at
8 seconds.
.SUN AND SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: SW 3 ft at 6 seconds.
.MON THROUGH TUE NIGHT...SW winds 10 to 15 kt. Seas 2 to 4 ft.
Wave Detail: S 4 ft at 9 seconds and SW 3 ft 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.

$$

ANZ237-220700-
Block Island Sound-
104 PM EST Fri Feb 21 2025

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

.THIS AFTERNOON...NW winds around 20 kt with gusts up to 25 kt.
Seas 3 to 4 ft. Wave Detail: W 3 ft at 4 seconds and S 2 ft at
9 seconds.
.TONIGHT...NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to
4 ft. Wave Detail: NW 3 ft at 4 seconds and SE 2 ft at
10 seconds. Light freezing spray in the evening.
.SAT...NW winds 10 to 15 kt, becoming W in the afternoon. Gusts
up to 20 kt. Seas around 2 ft. Wave Detail: N 2 ft at 3 seconds
and SE 1 foot at 8 seconds.
.SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: W 2 ft at 4 seconds.
.SUN AND SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: W 2 ft at 5 seconds and S 1 foot at
9 seconds.
.MON THROUGH TUE NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.
Wave Detail: S 3 ft at 9 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.

$$

ANZ230-220700-
Boston Harbor-
104 PM EST Fri Feb 21 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EST THIS EVENING...

.THIS AFTERNOON...NW winds 15 to 20 kt with gusts up to 30 kt.
Waves around 2 ft.
.TONIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. Gusts up to 30 kt. Waves around 2 ft.
.SAT...NW winds 10 to 15 kt, becoming W in the afternoon. Gusts
up to 25 kt. Waves around 2 ft in the morning, then 1 foot or
less.
.SAT NIGHT...SW winds around 10 kt. Gusts up to 20 kt in the
evening. Waves around 2 ft in the evening, then 1 foot or less.
.SUN AND SUN NIGHT...W winds 10 to 15 kt. Waves around 2 ft.
.MON THROUGH TUE 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.

$$

ANZ236-220700-
Narragansett Bay-
104 PM EST Fri Feb 21 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 PM EST THIS EVENING...

.THIS AFTERNOON...NW winds around 15 kt with gusts up to 25 kt.
Waves 2 to 3 ft.
.TONIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Waves
2 to 3 ft.
.SAT...NW winds 5 to 10 kt, becoming W in the afternoon. Gusts up
to 20 kt. Waves around 2 ft in the morning, then 1 foot or less.
.SAT NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Waves 2 to 3 ft.
.SUN AND SUN NIGHT...W winds 5 to 10 kt. Waves 2 to 3 ft.
.MON THROUGH TUE NIGHT...SW winds 5 to 10 kt. Waves 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.

$$

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