Coastal Waters Forecast
Issued by NWS Boston, MA

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578
FZUS51 KBOX 130306
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1006 PM EST Thu Feb 12 2026

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

ANZ200-131600-
1006 PM EST Thu Feb 12 2026

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pres to the SW will remain the dominant weather feature into
this weekend. Areas of light freezing spray on the nearshore waters
tonight. A weak front could trigger a few light snow showers late
Fri night into Sat. Need to monitor the potential for a coastal
storm late Sun into Mon, though the track has been trending S.

$$

ANZ250-131600-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1006 PM EST Thu Feb 12 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST FRIDAY...

.OVERNIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 ft. Wave Detail: N 4 ft at 6 seconds and E 1 foot at
9 seconds. Light freezing spray.
.FRI...NW winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 2 to 4 ft. Wave Detail: NW 3 ft at 4 seconds and NE 3 ft at
7 seconds.
.FRI NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and NE
2 ft at 7 seconds. A chance of flurries after midnight.
.SAT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: W 2 ft at 3 seconds and NE 1 foot at
6 seconds. A chance of flurries in the morning.
.SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. Wave Detail: NW 3 ft at 4 seconds and SE 1 foot at
8 seconds.
.SUN...NW winds 10 to 15 kt with gusts up to 20 kt, becoming N
5 to 10 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: N 3 ft
at 5 seconds and E 1 foot at 11 seconds.
.SUN NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft.
.MON THROUGH TUE NIGHT...SW 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.

$$

ANZ251-131600-
Massachusetts Bay and Ipswich Bay-
1006 PM EST Thu Feb 12 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

.OVERNIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 3 ft. Wave Detail: N 3 ft at 5 seconds and E 1 foot at
10 seconds. Light freezing spray.
.FRI...NW winds 10 to 15 kt with gusts up to 20 kt, becoming W
5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NE 3 ft
at 6 seconds and NW 2 ft at 3 seconds.
.FRI NIGHT...W winds around 10 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft. Wave Detail: W 1 foot at 3 seconds and
NE 1 foot at 7 seconds. A chance of flurries after midnight.
.SAT...W winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Seas around 2 ft. Wave Detail: W 1 foot at 2 seconds and NE
1 foot at 6 seconds. A chance of flurries in the morning.
.SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: NW 2 ft at 3 seconds and E 1 foot at
10 seconds.
.SUN AND SUN NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: NW 2 ft at 3 seconds and NE 2 ft at 6 seconds.
.MON THROUGH TUE...SW winds around 10 kt. Seas around 2 ft.
.TUE NIGHT...SW winds around 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.

$$

ANZ231-131600-
Cape Cod Bay-
1006 PM EST Thu Feb 12 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

.OVERNIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 3 ft. Wave Detail: N 3 ft at 6 seconds and E 1 foot at
9 seconds.
.FRI...NW winds 10 to 15 kt with gusts up to 20 kt, diminishing
to 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: N
3 ft at 6 seconds and E 1 foot at 9 seconds.
.FRI NIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft. Wave Detail: NE 2 ft at 7 seconds and
NW 1 foot at 4 seconds. A chance of flurries after midnight.
.SAT...W winds 5 to 10 kt with gusts up to 20 kt. Seas around
2 ft in the morning, then 1 foot or less. Wave Detail: W 1 foot
at 3 seconds and NE 1 foot at 6 seconds, becoming W 1 foot at
3 seconds and NE 1 foot at 5 seconds. A chance of flurries in the
morning.
.SAT NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 4 seconds and S
1 foot at 8 seconds.
.SUN AND SUN NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: N 2 ft at 4 seconds and E 1 foot at 10 seconds.
.MON THROUGH TUE NIGHT...SW 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.

$$

ANZ254-131600-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1006 PM EST Thu Feb 12 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST FRIDAY...

.OVERNIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 ft. Wave Detail: N 4 ft at 7 seconds and NE 1 foot at
8 seconds.
.FRI...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: N 3 ft at 6 seconds and S 1 foot at 9 seconds.
.FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: NE 3 ft at 7 seconds and W 2 ft at
4 seconds. A chance of flurries after midnight.
.SAT...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 and NE 2 ft at 6 seconds.
A chance of flurries in the morning.
.SAT NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. Wave Detail: NW 3 ft at 4 seconds and NE 1 foot at
5 seconds.
.SUN...NW winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 3 to 5 ft. Wave Detail: N 3 ft at 5 seconds and SW 1 foot at
7 seconds.
.SUN NIGHT...NE winds 5 to 10 kt, becoming E after midnight. Seas
2 to 3 ft.
.MON THROUGH TUE NIGHT...SW 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.

$$

ANZ255-131600-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1006 PM EST Thu Feb 12 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM EST FRIDAY...

.OVERNIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas
3 to 4 ft. Wave Detail: W 3 ft at 6 seconds and N 2 ft at
7 seconds.
.FRI...NW winds 10 to 15 kt with gusts up to 20 kt, diminishing
to 5 to 10 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: N
2 ft at 5 seconds and NE 1 foot at 8 seconds.
.FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. Wave Detail: W 2 ft at 5 seconds and NE 1 foot at
8 seconds. A chance of flurries after midnight.
.SAT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: SW 3 ft at 5 seconds and NE 1 foot at
7 seconds. A chance of flurries in the morning.
.SAT NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 6 seconds and NE
1 foot at 5 seconds.
.SUN AND SUN NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: NW 3 ft at 5 seconds.
.MON THROUGH TUE NIGHT...SW 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.

$$

ANZ256-131600-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1006 PM EST Thu Feb 12 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EST TONIGHT...

.OVERNIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 4 ft. Wave Detail: N 3 ft at 4 seconds and S 1 foot at
9 seconds. Light freezing spray.
.FRI...NW winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and S 1 foot at
9 seconds.
.FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. Wave Detail: W 2 ft at 4 seconds and NE 1 foot at
3 seconds. A chance of flurries after midnight.
.SAT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: W 3 ft at 5 seconds and SE 1 foot at
9 seconds. A chance of flurries in the morning.
.SAT NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: W 3 ft at 6 seconds.
.SUN...NW winds 10 to 15 kt, becoming NE 5 to 10 kt in the
afternoon. Seas around 2 ft. Wave Detail: NW 2 ft at 4 seconds.
.SUN NIGHT...E winds 5 to 10 kt. Seas around 2 ft. A chance of
snow after midnight.
.MON...E winds 10 to 15 kt. Seas 2 to 3 ft. A chance of snow.
.MON NIGHT THROUGH TUE NIGHT...SW winds around 10 kt. Seas 3 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.

$$

ANZ232-131600-
Nantucket Sound-
1006 PM EST Thu Feb 12 2026

.OVERNIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: NW 2 ft at 3 seconds and N 2 ft at
6 seconds.
.FRI...NW winds 5 to 10 kt. Gusts up to 20 kt in the morning.
Seas around 2 ft. Wave Detail: NE 2 ft at 7 seconds and NW 1 foot
at 3 seconds.
.FRI NIGHT...W winds 5 to 10 kt. Gusts up to 20 kt after
midnight. Seas around 2 ft. Wave Detail: W 1 foot at 2 seconds
and NE 1 foot at 7 seconds. A chance of flurries after midnight.
.SAT...W winds around 10 kt with gusts up to 20 kt. Seas around
2 ft. Wave Detail: W 1 foot at 3 seconds and NE 1 foot at
6 seconds. A chance of flurries in the morning.
.SAT NIGHT...W winds 10 to 15 kt. Seas 1 foot or less, then
around 2 ft after midnight. Wave Detail: W 1 foot at 4 seconds
and NE 1 foot at 6 seconds, becoming NW 2 ft at 4 seconds and S
1 foot at 7 seconds.
.SUN AND SUN NIGHT...E winds 10 to 15 kt. Seas around 2 ft. Wave
Detail: N 2 ft at 4 seconds and S 1 foot at 7 seconds.
.MON THROUGH TUE NIGHT...SW winds around 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.

$$

ANZ233-131600-
Vineyard Sound-
1006 PM EST Thu Feb 12 2026

.OVERNIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: N 2 ft at 5 seconds and S 1 foot at
9 seconds.
.FRI...NW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N
1 foot at 4 seconds and NE 1 foot at 9 seconds.
.FRI NIGHT...W winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft. Wave Detail: W 1 foot at 3 seconds and
NE 1 foot at 7 seconds. A chance of flurries after midnight.
.SAT...W winds around 10 kt with gusts up to 20 kt. Seas around
2 ft. Wave Detail: SW 2 ft at 4 seconds and NE 1 foot at
6 seconds. A chance of flurries in the morning.
.SAT NIGHT...NW winds 10 to 15 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 5 seconds, becoming W 1 foot at
5 seconds.
.SUN AND SUN NIGHT...E winds 5 to 10 kt. Seas 1 foot or less.
Wave Detail: NW 1 foot at 5 seconds and E 1 foot at 10 seconds.
.MON THROUGH TUE NIGHT...SW 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.

$$

ANZ234-131600-
Buzzards Bay-
1006 PM EST Thu Feb 12 2026

.OVERNIGHT...NW winds around 10 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: N 2 ft at 5 seconds and E 1 foot at
9 seconds.
.FRI...NW winds 5 to 10 kt. Seas around 2 ft in the morning, then
1 foot or less. Wave Detail: N 2 ft at 4 seconds and E 1 foot at
9 seconds, becoming NW 1 foot at 3 seconds and E 1 foot at
8 seconds.
.FRI NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SW 1 foot at 3 seconds and NE 1 foot at 5 seconds. A chance of
flurries after midnight.
.SAT...W winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Seas around 2 ft in the morning, then 1 foot or less. Wave
Detail: SW 1 foot at 4 seconds and NE 1 foot at 6 seconds,
becoming SW 1 foot at 5 seconds and NE 1 foot at 6 seconds. A
chance of flurries in the morning.
.SAT NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: SW 1 foot at 6 seconds.
.SUN AND SUN NIGHT...E winds 5 to 10 kt. Seas 1 foot or less.
Wave Detail: N 1 foot at 5 seconds and E 1 foot at 9 seconds.
.MON THROUGH TUE NIGHT...SW 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.

$$

ANZ235-131600-
Rhode Island Sound-
1006 PM EST Thu Feb 12 2026

.OVERNIGHT...NW winds 10 to 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.
.FRI...NW winds 5 to 10 kt. Gusts up to 20 kt in the morning.
Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and S 1 foot
at 9 seconds.
.FRI NIGHT...W winds around 10 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and NE 1 foot at
4 seconds. A chance of flurries after midnight.
.SAT...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 and SE 1 foot at
9 seconds. A chance of flurries in the morning.
.SAT NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft. Wave Detail: SW 2 ft at 7 seconds.
.SUN AND SUN NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: N 2 ft at 4 seconds.
.MON THROUGH TUE NIGHT...SW winds around 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.

$$

ANZ237-131600-
Block Island Sound-
1006 PM EST Thu Feb 12 2026

.OVERNIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 3 ft. Wave Detail: N 2 ft at 3 seconds and S 1 foot at
9 seconds.
.FRI...NW winds 5 to 10 kt. Gusts up to 20 kt in the morning.
Seas around 2 ft. Wave Detail: N 1 foot at 3 seconds and S 1 foot
at 9 seconds.
.FRI NIGHT...W winds around 10 kt with gusts up to 20 kt. Seas
around 2 ft. Wave Detail: NE 1 foot at 2 seconds and W 1 foot at
3 seconds. A chance of flurries after midnight.
.SAT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: W 2 ft at 3 seconds and SE 1 foot at
9 seconds. A chance of flurries in the morning.
.SAT NIGHT...NW winds around 10 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft. Wave Detail: W 2 ft at 4 seconds and S
1 foot at 7 seconds.
.SUN...NW winds 5 to 10 kt, becoming NE in the afternoon. Seas
1 foot or less. Wave Detail: N 1 foot at 3 seconds and S 1 foot
at 6 seconds.
.SUN NIGHT...E winds 5 to 10 kt. Seas 1 foot or less, then around
2 ft after midnight. A chance of snow after midnight.
.MON...E winds around 10 kt. Seas around 2 ft. A chance of snow.
.MON NIGHT THROUGH TUE NIGHT...SW 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.

$$

ANZ230-131600-
Boston Harbor-
1006 PM EST Thu Feb 12 2026

.OVERNIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Waves
around 2 ft.
.FRI...NW winds 5 to 10 kt. Gusts up to 20 kt in the morning.
Waves around 2 ft in the morning, then 1 foot or less.
.FRI NIGHT...W winds 5 to 10 kt. Waves around 2 ft. A chance of
flurries after midnight.
.SAT...W winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Waves around 2 ft in the morning, then 1 foot or less. A chance
of flurries in the morning.
.SAT NIGHT...W winds 10 to 15 kt. Waves around 2 ft.
.SUN AND SUN NIGHT...S winds 5 to 10 kt. Waves 1 foot or less.
.MON THROUGH TUE...SW winds 5 to 10 kt. Waves 1 foot or less.
.TUE NIGHT...SW 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.

$$

ANZ236-131600-
Narragansett Bay-
1006 PM EST Thu Feb 12 2026

.OVERNIGHT...NW winds around 10 kt with gusts up to 25 kt. Waves
2 to 3 ft.
.FRI...NW winds 5 to 10 kt. Gusts up to 20 kt in the morning.
Waves around 2 ft in the morning, then 1 foot or less.
.FRI NIGHT...W winds 5 to 10 kt. Waves around 2 ft. A chance of
flurries after midnight.
.SAT...W winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Waves around 2 ft. A chance of flurries in the morning.
.SAT NIGHT...NW winds 5 to 10 kt. Waves around 2 ft.
.SUN AND SUN NIGHT...E winds 5 to 10 kt. Waves 1 foot or less.
.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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