FZUS51 KBOX 120506
CWFBOX
Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
106 AM EDT Wed Mar 12 2025
Coastal waters from the Merrimack River MA to Watch Hill RI out
to 25 NM
ANZ200-121800-
106 AM EDT Wed Mar 12 2025
.Synopsis for Massachusetts and Rhode Island coastal waters...
A cold front will move S across the waters late tonight. High pres
builds across srn Quebec Wed, then a weak low pres along a warm
front will track S of the waters late Wed night into Thu. Weak high
pres builds over the waters Fri, then increasing S flow develops Sat
ahead of strong low pres moving into the Great Lakes. A cold front
will move E from the Gt Lakes Sun, crossing New Eng and the waters
late Sun night into Mon.
$$
ANZ250-121800-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
106 AM EDT Wed Mar 12 2025
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING...
.REST OF TONIGHT...NW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and SE 2 ft at
5 seconds.
.WED...N winds 15 to 20 kt, becoming NE 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: N 3 ft
at 5 seconds and SE 2 ft at 9 seconds.
.WED NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE
4 ft at 9 seconds and NE 3 ft at 6 seconds.
.THU...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: SE 4 ft at 9 seconds and NE 2 ft at 5 seconds.
.THU NIGHT AND FRI...E winds 5 to 10 kt with gusts up to 20 kt.
Seas 3 to 5 ft. Wave Detail: E 4 ft at 10 seconds and NE 1 foot
at 4 seconds.
.FRI NIGHT...SE winds 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: E
4 ft at 10 seconds.
.SAT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft.
.SAT NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas
4 to 6 ft.
.SUN...S winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to
7 ft.
.SUN NIGHT...S winds 20 to 25 kt with gusts up to 35 kt. Seas
5 to 8 ft. Showers. Vsby 1 to 3 NM.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ251-121800-
Massachusetts Bay and Ipswich Bay-
106 AM EDT Wed Mar 12 2025
...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY...
.REST OF TONIGHT...NW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Wave Detail: SE 2 ft at 4 seconds and W 1 foot at
3 seconds.
.WED...N winds 15 to 20 kt with gusts up to 25 kt, becoming NE
10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: N 2 ft
at 4 seconds and E 2 ft at 5 seconds.
.WED NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 6 seconds and SE 2 ft at 9 seconds.
.THU...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: E 3 ft at 10 seconds and E 2 ft at 5 seconds.
.THU NIGHT AND FRI...E winds 5 to 10 kt. Seas 2 to 4 ft. Wave
Detail: E 4 ft at 10 seconds and NE 1 foot at 4 seconds.
.FRI NIGHT...SE winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: E
4 ft at 10 seconds.
.SAT AND SAT NIGHT...S winds 10 to 15 kt, increasing to 15 to
20 kt. Gusts up to 25 kt. Seas 2 to 4 ft.
.SUN...S winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to
5 ft.
.SUN NIGHT...S winds 20 to 25 kt with gusts up to 35 kt. Seas
3 to 5 ft. Showers. Vsby 1 to 3 NM.
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.
$$
ANZ231-121800-
Cape Cod Bay-
106 AM EDT Wed Mar 12 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...
.REST OF TONIGHT...W winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Wave Detail: W 1 foot at 2 seconds and SE 1 foot
at 4 seconds.
.WED...N winds 15 to 20 kt, becoming NE 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: NW
3 ft at 4 seconds and E 2 ft at 6 seconds.
.WED NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 9 seconds and NE 2 ft at 5 seconds.
.THU...E winds around 10 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 9 seconds and E 2 ft at 3 seconds.
.THU NIGHT AND FRI...E winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: E 2 ft at 10 seconds and E 1 foot at 3 seconds.
.FRI NIGHT...SE winds around 5 kt. Seas around 2 ft. Wave Detail:
E 2 ft at 10 seconds and E 1 foot at 2 seconds.
.SAT AND SAT NIGHT...S winds 5 to 10 kt, increasing to 15 to
20 kt. Gusts up to 25 kt. Seas 2 to 3 ft.
.SUN...S winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to
5 ft.
.SUN NIGHT...S winds 20 to 25 kt with gusts up to 35 kt. Seas
3 to 5 ft. Showers. Vsby 1 to 3 NM.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ254-121800-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
106 AM EDT Wed Mar 12 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING...
.REST OF TONIGHT...W winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Wave Detail: SE 2 ft at 5 seconds and W 1 foot at
3 seconds.
.WED...N winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
5 ft. Wave Detail: N 4 ft at 5 seconds and S 4 ft at 9 seconds.
.WED NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft. Wave Detail:
SE 4 ft at 9 seconds and NE 3 ft at 6 seconds.
.THU...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: SE 5 ft at 10 seconds and S 4 ft at 9 seconds.
.THU NIGHT AND FRI...E winds 5 to 10 kt with gusts up to 20 kt.
Seas 4 to 5 ft. Wave Detail: SE 5 ft at 10 seconds and NE 2 ft at
5 seconds.
.FRI NIGHT...E winds 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: E
5 ft at 10 seconds.
.SAT...S winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 ft.
.SAT NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 6 ft.
.SUN...S winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to
7 ft.
.SUN NIGHT...S winds 20 to 25 kt with gusts up to 35 kt. Seas
6 to 9 ft. Showers likely. Vsby 1 to 3 NM.
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.
$$
ANZ255-121800-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
106 AM EDT Wed Mar 12 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING...
.REST OF TONIGHT...W winds 5 to 10 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: S 3 ft at 10 seconds and S 2 ft at
6 seconds.
.WED...N winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
5 ft. Wave Detail: N 4 ft at 4 seconds and S 4 ft at 9 seconds.
.WED NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail:
SE 4 ft at 9 seconds and NE 3 ft at 5 seconds.
.THU...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: SE 4 ft at 9 seconds and NE 3 ft at 5 seconds.
.THU NIGHT AND FRI...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 5 ft. Wave Detail: SE 4 ft at 9 seconds and NE 2 ft at
5 seconds.
.FRI NIGHT...E winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: SE
4 ft at 9 seconds and NE 1 foot at 3 seconds.
.SAT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft.
.SAT NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas
4 to 6 ft.
.SUN...S winds 25 to 30 kt with gusts up to 35 kt. Seas 5 to
8 ft.
.SUN NIGHT...S winds 25 to 30 kt with gusts up to 40 kt. Seas
7 to 10 ft. A chance of showers. Vsby 1 to 3 NM.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ256-121800-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
106 AM EDT Wed Mar 12 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING...
.REST OF TONIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: S 3 ft at 9 seconds and S 2 ft at 6 seconds.
.WED...N winds 15 to 20 kt, becoming NE 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft
at 9 seconds and N 3 ft at 4 seconds.
.WED NIGHT...E winds around 15 kt with gusts up to 20 kt. Seas
4 to 5 ft. Wave Detail: SE 5 ft at 9 seconds and NE 3 ft at
4 seconds.
.THU...E winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: SE 5 ft
at 9 seconds and S 4 ft at 9 seconds.
.THU NIGHT AND FRI...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.
.FRI NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE
4 ft at 9 seconds and NE 1 foot at 3 seconds.
.SAT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft.
.SAT NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas
4 to 6 ft.
.SUN...S winds 25 to 30 kt with gusts up to 40 kt. Seas 6 to
8 ft.
.SUN NIGHT...S winds 25 to 30 kt with gusts up to 40 kt. Seas
8 to 11 ft. Showers. Vsby 1 to 3 NM.
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.
$$
ANZ232-121800-
Nantucket Sound-
106 AM EDT Wed Mar 12 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...
.REST OF TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: W 1 foot at 2 seconds and SE
1 foot at 4 seconds.
.WED...N winds 15 to 20 kt, becoming NE 10 to 15 kt in the
afternoon. Gusts up to 30 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft
at 4 seconds and S 2 ft at 9 seconds.
.WED NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: N
2 ft at 4 seconds and S 2 ft at 9 seconds.
.THU...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: NE 2 ft at 4 seconds and SE 2 ft at 9 seconds.
.THU NIGHT AND FRI...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: E 2 ft at 4 seconds and E 2 ft at 10 seconds.
.FRI NIGHT...E winds around 5 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 10 seconds and NE 1 foot at 4 seconds.
.SAT AND SAT NIGHT...S winds 5 to 10 kt, increasing to 15 to
20 kt with gusts up to 25 kt. Seas 2 to 4 ft.
.SUN...S winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to
5 ft.
.SUN NIGHT...S winds 25 to 30 kt with gusts up to 40 kt. Seas
4 to 6 ft. Showers likely. Vsby 1 to 3 NM.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ233-121800-
Vineyard Sound-
106 AM EDT Wed Mar 12 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...
.REST OF TONIGHT...W winds 5 to 10 kt with gusts up to 20 kt.
Seas 1 foot or less. Wave Detail: W 1 foot at 2 seconds and S
1 foot at 5 seconds.
.WED...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: N 2 ft at 4 seconds and S 2 ft at 9 seconds.
.WED NIGHT...E winds 10 to 15 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 9 seconds and SE 2 ft at 9 seconds.
.THU...E 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 2 ft at 3 seconds.
.THU NIGHT THROUGH FRI NIGHT...E winds 10 to 15 kt. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 9 seconds and S 2 ft at 7 seconds.
.SAT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft
at 10 seconds and SE 1 foot at 7 seconds.
.SAT NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas
2 to 4 ft.
.SUN...S winds 25 to 30 kt with gusts up to 40 kt. Seas 4 to
6 ft.
.SUN NIGHT...S winds 25 to 30 kt with gusts up to 40 kt. Seas
4 to 6 ft. Showers. Vsby 1 to 3 NM.
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.
$$
ANZ234-121800-
Buzzards Bay-
106 AM EDT Wed Mar 12 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...
.REST OF TONIGHT...W winds 5 to 10 kt with gusts up to 20 kt.
Seas 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and S
1 foot at 9 seconds.
.WED...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: N 2 ft at 4 seconds and S 2 ft at 9 seconds.
.WED NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 9 seconds and S 2 ft at 10 seconds.
.THU...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 9 seconds and S 2 ft at 9 seconds.
.THU NIGHT THROUGH FRI NIGHT...E winds 5 to 10 kt. Seas around
2 ft. Wave Detail: SE 2 ft at 9 seconds and NE 1 foot at
3 seconds.
.SAT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft
at 10 seconds and SE 1 foot at 7 seconds.
.SAT NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas
2 to 4 ft.
.SUN...S winds 25 to 30 kt with gusts up to 40 kt. Seas 4 to
6 ft.
.SUN NIGHT...S winds 25 to 30 kt with gusts up to 40 kt. Seas
4 to 6 ft. Showers. Vsby 1 to 3 NM.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ235-121800-
Rhode Island Sound-
106 AM EDT Wed Mar 12 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...
.REST OF TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and S 2 ft at
9 seconds.
.WED...N winds 15 to 20 kt, becoming NE 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft
at 9 seconds and N 3 ft at 4 seconds.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE
4 ft at 9 seconds and NE 2 ft at 3 seconds.
.THU...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Wave Detail: SE 4 ft at 9 seconds and E 3 ft at 5 seconds.
.THU NIGHT THROUGH FRI NIGHT...E 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 1 foot at 3 seconds.
.SAT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 9 seconds and S 2 ft at 5 seconds.
.SAT NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas
3 to 5 ft.
.SUN...S winds 25 to 30 kt with gusts up to 40 kt. Seas 5 to
7 ft.
.SUN NIGHT...S winds 25 to 30 kt with gusts up to 40 kt. Seas
6 to 9 ft. Showers. Vsby 1 to 3 NM.
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.
$$
ANZ237-121800-
Block Island Sound-
106 AM EDT Wed Mar 12 2025
.REST OF TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 9 seconds and SW 1 foot at 3 seconds.
.WED...N winds 15 to 20 kt with gusts up to 25 kt, becoming NE
10 to 15 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: S 4 ft
at 9 seconds and N 2 ft at 4 seconds.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE
4 ft at 9 seconds and E 2 ft at 3 seconds.
.THU...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Wave Detail: SE 4 ft at 9 seconds and SE 3 ft at 9 seconds.
.THU NIGHT THROUGH FRI NIGHT...E winds 10 to 15 kt with gusts up
to 20 kt. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 9 seconds and S
2 ft at 7 seconds.
.SAT...SE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: E 3 ft at 9 seconds and S 1 foot at 7 seconds.
.SAT NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas
3 to 5 ft.
.SUN...S winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to
6 ft.
.SUN NIGHT...S winds 20 to 25 kt with gusts up to 40 kt. Seas
5 to 8 ft. Showers. Vsby 1 to 3 NM.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ230-121800-
Boston Harbor-
106 AM EDT Wed Mar 12 2025
.REST OF TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft.
.WED...N winds 10 to 15 kt with gusts up to 20 kt, becoming NE in
the afternoon. Waves around 2 ft in the morning, then 1 foot or
less.
.WED NIGHT...E winds 5 to 10 kt. Waves 1 foot or less.
.THU...E winds around 10 kt. Waves around 2 ft.
.THU NIGHT AND FRI...E winds 5 to 10 kt. Waves around 2 ft.
.FRI NIGHT...SE winds 5 to 10 kt, becoming S after midnight.
Waves 1 foot or less.
.SAT THROUGH SUN...S winds 20 to 25 kt with gusts up to 35 kt.
Waves around 2 ft.
.SUN NIGHT...S winds 20 to 25 kt with gusts up to 35 kt. Waves
around 2 ft. Showers. Vsby 1 to 3 NM.
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.
$$
ANZ236-121800-
Narragansett Bay-
106 AM EDT Wed Mar 12 2025
.REST OF TONIGHT...NW winds 5 to 10 kt. Waves around 2 ft.
.WED...N winds 10 to 15 kt with gusts up to 25 kt, becoming NE
5 to 10 kt in the afternoon. Waves 2 to 3 ft.
.WED NIGHT...E winds 5 to 10 kt. Waves 2 to 3 ft.
.THU...E winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to
3 ft.
.THU NIGHT THROUGH FRI NIGHT...E winds 5 to 10 kt. Waves around
2 ft.
.SAT THROUGH SUN...S winds 20 to 25 kt with gusts up to 35 kt.
Waves 2 to 4 ft.
.SUN NIGHT...S winds 20 to 25 kt with gusts up to 35 kt. Waves
3 to 5 ft. Showers. Vsby 1 to 3 NM.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
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CWFBOX
Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
106 AM EDT Wed Mar 12 2025
Coastal waters from the Merrimack River MA to Watch Hill RI out
to 25 NM
ANZ200-121800-
106 AM EDT Wed Mar 12 2025
.Synopsis for Massachusetts and Rhode Island coastal waters...
A cold front will move S across the waters late tonight. High pres
builds across srn Quebec Wed, then a weak low pres along a warm
front will track S of the waters late Wed night into Thu. Weak high
pres builds over the waters Fri, then increasing S flow develops Sat
ahead of strong low pres moving into the Great Lakes. A cold front
will move E from the Gt Lakes Sun, crossing New Eng and the waters
late Sun night into Mon.
$$
ANZ250-121800-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
106 AM EDT Wed Mar 12 2025
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING...
.REST OF TONIGHT...NW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and SE 2 ft at
5 seconds.
.WED...N winds 15 to 20 kt, becoming NE 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: N 3 ft
at 5 seconds and SE 2 ft at 9 seconds.
.WED NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE
4 ft at 9 seconds and NE 3 ft at 6 seconds.
.THU...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: SE 4 ft at 9 seconds and NE 2 ft at 5 seconds.
.THU NIGHT AND FRI...E winds 5 to 10 kt with gusts up to 20 kt.
Seas 3 to 5 ft. Wave Detail: E 4 ft at 10 seconds and NE 1 foot
at 4 seconds.
.FRI NIGHT...SE winds 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: E
4 ft at 10 seconds.
.SAT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft.
.SAT NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas
4 to 6 ft.
.SUN...S winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to
7 ft.
.SUN NIGHT...S winds 20 to 25 kt with gusts up to 35 kt. Seas
5 to 8 ft. Showers. Vsby 1 to 3 NM.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ251-121800-
Massachusetts Bay and Ipswich Bay-
106 AM EDT Wed Mar 12 2025
...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY...
.REST OF TONIGHT...NW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Wave Detail: SE 2 ft at 4 seconds and W 1 foot at
3 seconds.
.WED...N winds 15 to 20 kt with gusts up to 25 kt, becoming NE
10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: N 2 ft
at 4 seconds and E 2 ft at 5 seconds.
.WED NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 6 seconds and SE 2 ft at 9 seconds.
.THU...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: E 3 ft at 10 seconds and E 2 ft at 5 seconds.
.THU NIGHT AND FRI...E winds 5 to 10 kt. Seas 2 to 4 ft. Wave
Detail: E 4 ft at 10 seconds and NE 1 foot at 4 seconds.
.FRI NIGHT...SE winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: E
4 ft at 10 seconds.
.SAT AND SAT NIGHT...S winds 10 to 15 kt, increasing to 15 to
20 kt. Gusts up to 25 kt. Seas 2 to 4 ft.
.SUN...S winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to
5 ft.
.SUN NIGHT...S winds 20 to 25 kt with gusts up to 35 kt. Seas
3 to 5 ft. Showers. Vsby 1 to 3 NM.
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.
$$
ANZ231-121800-
Cape Cod Bay-
106 AM EDT Wed Mar 12 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...
.REST OF TONIGHT...W winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Wave Detail: W 1 foot at 2 seconds and SE 1 foot
at 4 seconds.
.WED...N winds 15 to 20 kt, becoming NE 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: NW
3 ft at 4 seconds and E 2 ft at 6 seconds.
.WED NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 9 seconds and NE 2 ft at 5 seconds.
.THU...E winds around 10 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 9 seconds and E 2 ft at 3 seconds.
.THU NIGHT AND FRI...E winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: E 2 ft at 10 seconds and E 1 foot at 3 seconds.
.FRI NIGHT...SE winds around 5 kt. Seas around 2 ft. Wave Detail:
E 2 ft at 10 seconds and E 1 foot at 2 seconds.
.SAT AND SAT NIGHT...S winds 5 to 10 kt, increasing to 15 to
20 kt. Gusts up to 25 kt. Seas 2 to 3 ft.
.SUN...S winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to
5 ft.
.SUN NIGHT...S winds 20 to 25 kt with gusts up to 35 kt. Seas
3 to 5 ft. Showers. Vsby 1 to 3 NM.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ254-121800-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
106 AM EDT Wed Mar 12 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING...
.REST OF TONIGHT...W winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Wave Detail: SE 2 ft at 5 seconds and W 1 foot at
3 seconds.
.WED...N winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
5 ft. Wave Detail: N 4 ft at 5 seconds and S 4 ft at 9 seconds.
.WED NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft. Wave Detail:
SE 4 ft at 9 seconds and NE 3 ft at 6 seconds.
.THU...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: SE 5 ft at 10 seconds and S 4 ft at 9 seconds.
.THU NIGHT AND FRI...E winds 5 to 10 kt with gusts up to 20 kt.
Seas 4 to 5 ft. Wave Detail: SE 5 ft at 10 seconds and NE 2 ft at
5 seconds.
.FRI NIGHT...E winds 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: E
5 ft at 10 seconds.
.SAT...S winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 ft.
.SAT NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 6 ft.
.SUN...S winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to
7 ft.
.SUN NIGHT...S winds 20 to 25 kt with gusts up to 35 kt. Seas
6 to 9 ft. Showers likely. Vsby 1 to 3 NM.
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.
$$
ANZ255-121800-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
106 AM EDT Wed Mar 12 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING...
.REST OF TONIGHT...W winds 5 to 10 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: S 3 ft at 10 seconds and S 2 ft at
6 seconds.
.WED...N winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
5 ft. Wave Detail: N 4 ft at 4 seconds and S 4 ft at 9 seconds.
.WED NIGHT...NE winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail:
SE 4 ft at 9 seconds and NE 3 ft at 5 seconds.
.THU...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: SE 4 ft at 9 seconds and NE 3 ft at 5 seconds.
.THU NIGHT AND FRI...NE winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 5 ft. Wave Detail: SE 4 ft at 9 seconds and NE 2 ft at
5 seconds.
.FRI NIGHT...E winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: SE
4 ft at 9 seconds and NE 1 foot at 3 seconds.
.SAT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft.
.SAT NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas
4 to 6 ft.
.SUN...S winds 25 to 30 kt with gusts up to 35 kt. Seas 5 to
8 ft.
.SUN NIGHT...S winds 25 to 30 kt with gusts up to 40 kt. Seas
7 to 10 ft. A chance of showers. Vsby 1 to 3 NM.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ256-121800-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
106 AM EDT Wed Mar 12 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING...
.REST OF TONIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: S 3 ft at 9 seconds and S 2 ft at 6 seconds.
.WED...N winds 15 to 20 kt, becoming NE 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft
at 9 seconds and N 3 ft at 4 seconds.
.WED NIGHT...E winds around 15 kt with gusts up to 20 kt. Seas
4 to 5 ft. Wave Detail: SE 5 ft at 9 seconds and NE 3 ft at
4 seconds.
.THU...E winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: SE 5 ft
at 9 seconds and S 4 ft at 9 seconds.
.THU NIGHT AND FRI...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.
.FRI NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE
4 ft at 9 seconds and NE 1 foot at 3 seconds.
.SAT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft.
.SAT NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas
4 to 6 ft.
.SUN...S winds 25 to 30 kt with gusts up to 40 kt. Seas 6 to
8 ft.
.SUN NIGHT...S winds 25 to 30 kt with gusts up to 40 kt. Seas
8 to 11 ft. Showers. Vsby 1 to 3 NM.
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.
$$
ANZ232-121800-
Nantucket Sound-
106 AM EDT Wed Mar 12 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...
.REST OF TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: W 1 foot at 2 seconds and SE
1 foot at 4 seconds.
.WED...N winds 15 to 20 kt, becoming NE 10 to 15 kt in the
afternoon. Gusts up to 30 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft
at 4 seconds and S 2 ft at 9 seconds.
.WED NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: N
2 ft at 4 seconds and S 2 ft at 9 seconds.
.THU...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: NE 2 ft at 4 seconds and SE 2 ft at 9 seconds.
.THU NIGHT AND FRI...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: E 2 ft at 4 seconds and E 2 ft at 10 seconds.
.FRI NIGHT...E winds around 5 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 10 seconds and NE 1 foot at 4 seconds.
.SAT AND SAT NIGHT...S winds 5 to 10 kt, increasing to 15 to
20 kt with gusts up to 25 kt. Seas 2 to 4 ft.
.SUN...S winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to
5 ft.
.SUN NIGHT...S winds 25 to 30 kt with gusts up to 40 kt. Seas
4 to 6 ft. Showers likely. Vsby 1 to 3 NM.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ233-121800-
Vineyard Sound-
106 AM EDT Wed Mar 12 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...
.REST OF TONIGHT...W winds 5 to 10 kt with gusts up to 20 kt.
Seas 1 foot or less. Wave Detail: W 1 foot at 2 seconds and S
1 foot at 5 seconds.
.WED...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: N 2 ft at 4 seconds and S 2 ft at 9 seconds.
.WED NIGHT...E winds 10 to 15 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 9 seconds and SE 2 ft at 9 seconds.
.THU...E 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 2 ft at 3 seconds.
.THU NIGHT THROUGH FRI NIGHT...E winds 10 to 15 kt. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 9 seconds and S 2 ft at 7 seconds.
.SAT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft
at 10 seconds and SE 1 foot at 7 seconds.
.SAT NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas
2 to 4 ft.
.SUN...S winds 25 to 30 kt with gusts up to 40 kt. Seas 4 to
6 ft.
.SUN NIGHT...S winds 25 to 30 kt with gusts up to 40 kt. Seas
4 to 6 ft. Showers. Vsby 1 to 3 NM.
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.
$$
ANZ234-121800-
Buzzards Bay-
106 AM EDT Wed Mar 12 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...
.REST OF TONIGHT...W winds 5 to 10 kt with gusts up to 20 kt.
Seas 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and S
1 foot at 9 seconds.
.WED...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: N 2 ft at 4 seconds and S 2 ft at 9 seconds.
.WED NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 9 seconds and S 2 ft at 10 seconds.
.THU...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 9 seconds and S 2 ft at 9 seconds.
.THU NIGHT THROUGH FRI NIGHT...E winds 5 to 10 kt. Seas around
2 ft. Wave Detail: SE 2 ft at 9 seconds and NE 1 foot at
3 seconds.
.SAT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft
at 10 seconds and SE 1 foot at 7 seconds.
.SAT NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas
2 to 4 ft.
.SUN...S winds 25 to 30 kt with gusts up to 40 kt. Seas 4 to
6 ft.
.SUN NIGHT...S winds 25 to 30 kt with gusts up to 40 kt. Seas
4 to 6 ft. Showers. Vsby 1 to 3 NM.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ235-121800-
Rhode Island Sound-
106 AM EDT Wed Mar 12 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...
.REST OF TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and S 2 ft at
9 seconds.
.WED...N winds 15 to 20 kt, becoming NE 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft
at 9 seconds and N 3 ft at 4 seconds.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE
4 ft at 9 seconds and NE 2 ft at 3 seconds.
.THU...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Wave Detail: SE 4 ft at 9 seconds and E 3 ft at 5 seconds.
.THU NIGHT THROUGH FRI NIGHT...E 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 1 foot at 3 seconds.
.SAT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 9 seconds and S 2 ft at 5 seconds.
.SAT NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas
3 to 5 ft.
.SUN...S winds 25 to 30 kt with gusts up to 40 kt. Seas 5 to
7 ft.
.SUN NIGHT...S winds 25 to 30 kt with gusts up to 40 kt. Seas
6 to 9 ft. Showers. Vsby 1 to 3 NM.
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.
$$
ANZ237-121800-
Block Island Sound-
106 AM EDT Wed Mar 12 2025
.REST OF TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 9 seconds and SW 1 foot at 3 seconds.
.WED...N winds 15 to 20 kt with gusts up to 25 kt, becoming NE
10 to 15 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: S 4 ft
at 9 seconds and N 2 ft at 4 seconds.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE
4 ft at 9 seconds and E 2 ft at 3 seconds.
.THU...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Wave Detail: SE 4 ft at 9 seconds and SE 3 ft at 9 seconds.
.THU NIGHT THROUGH FRI NIGHT...E winds 10 to 15 kt with gusts up
to 20 kt. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 9 seconds and S
2 ft at 7 seconds.
.SAT...SE winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: E 3 ft at 9 seconds and S 1 foot at 7 seconds.
.SAT NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas
3 to 5 ft.
.SUN...S winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to
6 ft.
.SUN NIGHT...S winds 20 to 25 kt with gusts up to 40 kt. Seas
5 to 8 ft. Showers. Vsby 1 to 3 NM.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ230-121800-
Boston Harbor-
106 AM EDT Wed Mar 12 2025
.REST OF TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft.
.WED...N winds 10 to 15 kt with gusts up to 20 kt, becoming NE in
the afternoon. Waves around 2 ft in the morning, then 1 foot or
less.
.WED NIGHT...E winds 5 to 10 kt. Waves 1 foot or less.
.THU...E winds around 10 kt. Waves around 2 ft.
.THU NIGHT AND FRI...E winds 5 to 10 kt. Waves around 2 ft.
.FRI NIGHT...SE winds 5 to 10 kt, becoming S after midnight.
Waves 1 foot or less.
.SAT THROUGH SUN...S winds 20 to 25 kt with gusts up to 35 kt.
Waves around 2 ft.
.SUN NIGHT...S winds 20 to 25 kt with gusts up to 35 kt. Waves
around 2 ft. Showers. Vsby 1 to 3 NM.
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.
$$
ANZ236-121800-
Narragansett Bay-
106 AM EDT Wed Mar 12 2025
.REST OF TONIGHT...NW winds 5 to 10 kt. Waves around 2 ft.
.WED...N winds 10 to 15 kt with gusts up to 25 kt, becoming NE
5 to 10 kt in the afternoon. Waves 2 to 3 ft.
.WED NIGHT...E winds 5 to 10 kt. Waves 2 to 3 ft.
.THU...E winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to
3 ft.
.THU NIGHT THROUGH FRI NIGHT...E winds 5 to 10 kt. Waves around
2 ft.
.SAT THROUGH SUN...S winds 20 to 25 kt with gusts up to 35 kt.
Waves 2 to 4 ft.
.SUN NIGHT...S winds 20 to 25 kt with gusts up to 35 kt. Waves
3 to 5 ft. Showers. Vsby 1 to 3 NM.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
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