FZUS51 KBOX 240504
CWFBOX
Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
104 AM EDT Thu Apr 24 2025
Coastal waters from the Merrimack River MA to Watch Hill RI out
to 25 NM
ANZ200-241800-
104 AM EDT Thu Apr 24 2025
.Synopsis for Massachusetts and Rhode Island coastal waters...
Following a cold front from earlier this morning, high pres
maintains control through Fri. Periodic chances for rainfall Fri
night into Sat as low pres crosses the region. Clearing conditions
Sun.
$$
ANZ250-241800-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
104 AM EDT Thu Apr 24 2025
.REST OF TONIGHT...NE winds 5 to 10 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and W 1 foot
at 2 seconds.
.THU...NE winds around 5 kt, becoming SE 10 to 15 kt in the
afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 3 seconds
and SE 2 ft at 8 seconds.
.THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 4 seconds and SE 2 ft at
9 seconds.
.FRI...NW winds 5 to 10 kt, becoming E 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and
E 2 ft at 4 seconds.
.FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 4 seconds and SE 2 ft at
9 seconds.
.SAT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
5 ft, building to 5 to 7 ft in the afternoon. Wave Detail: SE
4 ft at 5 seconds and SE 3 ft at 9 seconds, becoming SE 4 ft at
6 seconds. A chance of showers in the morning, then showers in
the afternoon.
.SAT NIGHT...SW winds 15 to 20 kt, becoming W after midnight.
Gusts up to 30 kt. Seas 5 to 7 ft. Showers, mainly in the
evening.
.SUN...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft.
.SUN NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 ft.
.MON AND MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt,
becoming SW. Seas 2 to 4 ft.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ251-241800-
Massachusetts Bay and Ipswich Bay-
104 AM EDT Thu Apr 24 2025
.REST OF TONIGHT...N winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: NE 1 foot at 2 seconds and SE 1 foot at 8 seconds.
.THU...NE winds around 5 kt, becoming SE 10 to 15 kt in the
afternoon. Seas 1 foot or less, then around 2 ft in the
afternoon. Wave Detail: N 1 foot at 2 seconds and SE 1 foot at
8 seconds, becoming SE 2 ft at 3 seconds and SE 1 foot at
9 seconds.
.THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt, becoming
SW 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: SE
2 ft at 4 seconds and SE 1 foot at 9 seconds.
.FRI...NW winds around 5 kt, becoming E 10 to 15 kt in the
afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 4 seconds and
SW 1 foot at 3 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 4 seconds and
SE 1 foot at 9 seconds.
.SAT AND SAT NIGHT...W winds 15 to 20 kt with gusts up to 25 kt.
Seas 3 to 5 ft. Wave Detail: SE 3 ft at 4 seconds and SE 2 ft at
8 seconds. Showers. A chance of showers after midnight.
.SUN AND SUN NIGHT...NW winds 15 to 20 kt, diminishing to 10 to
15 kt. Seas 2 to 4 ft.
.MON AND MON NIGHT...NW winds 10 to 15 kt, becoming SW. 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.
$$
ANZ231-241800-
Cape Cod Bay-
104 AM EDT Thu Apr 24 2025
.REST OF TONIGHT...N winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: W 1 foot at 2 seconds and SE 1 foot at 8 seconds.
.THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
1 foot or less. Wave Detail: N 1 foot at 2 seconds and SE 1 foot
at 8 seconds.
.THU NIGHT...S winds 10 to 15 kt. Seas around 2 ft. Wave Detail:
SE 1 foot at 3 seconds and SE 1 foot at 9 seconds.
.FRI...W winds 5 to 10 kt, becoming E in the afternoon. Seas
1 foot or less. Wave Detail: SW 1 foot at 2 seconds and E 1 foot
at 3 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 3 seconds and
SE 1 foot at 9 seconds.
.SAT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to
4 ft. Wave Detail: S 3 ft at 4 seconds and SE 2 ft at 8 seconds.
A chance of showers in the morning, then showers in the
afternoon.
.SAT NIGHT...SW winds 15 to 20 kt, becoming W after midnight.
Gusts up to 25 kt. Seas 3 to 4 ft. Showers.
.SUN THROUGH MON...NW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft.
.MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ254-241800-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
104 AM EDT Thu Apr 24 2025
.REST OF TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 7 seconds.
.THU...NE winds around 5 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 8 seconds and SW 1 foot at
2 seconds.
.THU NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 4 seconds and SE 2 ft at 10 seconds.
.FRI...W winds 10 to 15 kt with gusts up to 20 kt, becoming S
5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft
at 4 seconds and SE 2 ft at 10 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and SE
2 ft at 9 seconds.
.SAT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft, building to 5 to 7 ft in the afternoon. Wave Detail: S 4 ft
at 5 seconds and SE 2 ft at 9 seconds, becoming S 5 ft at
5 seconds and SE 4 ft at 9 seconds. A chance of showers in the
morning, then showers in the afternoon.
.SAT NIGHT...SW winds 15 to 20 kt, becoming W after midnight.
Gusts up to 25 kt. Seas 5 to 7 ft. Showers.
.SUN AND SUN NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt.
Seas 4 to 6 ft.
.MON...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft.
.MON NIGHT...W 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.
$$
ANZ255-241800-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
104 AM EDT Thu Apr 24 2025
.REST OF TONIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 7 seconds.
.THU...N winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: S 2 ft at 7 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 5 seconds and SE 2 ft at 10 seconds.
.FRI...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft
at 4 seconds and SE 2 ft at 10 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and
SE 2 ft at 9 seconds.
.SAT...S winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. Gusts up to 30 kt. Seas 3 to 5 ft, building to 5 to
7 ft in the afternoon. Wave Detail: S 5 ft at 5 seconds and SE
2 ft at 9 seconds, becoming S 6 ft at 6 seconds and SE 6 ft at
9 seconds. A chance of showers in the morning, then showers in
the afternoon.
.SAT NIGHT...SW winds 20 to 25 kt, becoming W 15 to 20 kt after
midnight. Seas 5 to 7 ft. Showers.
.SUN...NW winds 15 to 20 kt. Seas 5 to 7 ft.
.SUN NIGHT...NW winds 10 to 15 kt. Seas 3 to 5 ft.
.MON AND MON NIGHT...NW winds 10 to 15 kt, becoming W. Seas 2 to
4 ft.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ256-241800-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
104 AM EDT Thu Apr 24 2025
.REST OF TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 7 seconds and NW 1 foot at 3 seconds.
.THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: S 2 ft at 7 seconds and N 1 foot at
2 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 4 seconds and SE 2 ft at 9 seconds.
.FRI...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft
at 4 seconds and SE 2 ft at 10 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and SE
2 ft at 9 seconds.
.SAT...S winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to
5 ft, building to 5 to 7 ft in the afternoon. Wave Detail: S 5 ft
at 5 seconds and SE 2 ft at 9 seconds, becoming S 7 ft at
9 seconds and SW 5 ft at 6 seconds. A chance of showers in the
morning, then showers in the afternoon.
.SAT NIGHT...SW winds 20 to 25 kt, becoming W 15 to 20 kt after
midnight. Seas 5 to 7 ft. Showers.
.SUN...NW winds 15 to 20 kt. Seas 4 to 6 ft.
.SUN NIGHT...NW winds 10 to 15 kt. Seas 3 to 5 ft.
.MON AND MON NIGHT...W winds 10 to 15 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.
$$
ANZ232-241800-
Nantucket Sound-
104 AM EDT Thu Apr 24 2025
.REST OF TONIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: SW 1 foot at 3 seconds and E 1 foot at 4 seconds.
.THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
1 foot or less. Wave Detail: NE 1 foot at 3 seconds and SW 1 foot
at 5 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 1 foot or less, then around 2 ft after midnight.
Wave Detail: SE 1 foot at 3 seconds and SE 1 foot at 9 seconds,
becoming S 2 ft at 3 seconds and SE 1 foot at 10 seconds.
.FRI...SW winds 5 to 10 kt. Seas around 2 ft in the morning, then
1 foot or less. Wave Detail: SW 2 ft at 3 seconds and SE 1 foot
at 10 seconds, becoming SW 1 foot at 3 seconds and SE 1 foot at
4 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Seas 1 foot or less, then
around 2 ft after midnight. Wave Detail: S 1 foot at 3 seconds
and SE 1 foot at 9 seconds, becoming S 2 ft at 4 seconds and SE
1 foot at 9 seconds.
.SAT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
5 ft. Wave Detail: S 4 ft at 4 seconds and SE 2 ft at 9 seconds.
A chance of showers in the morning, then showers in the
afternoon.
.SAT NIGHT...SW winds 15 to 20 kt, becoming W after midnight.
Gusts up to 25 kt. Seas 3 to 5 ft. Showers.
.SUN AND SUN NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt.
Seas 2 to 4 ft.
.MON AND MON NIGHT...NW winds around 10 kt, becoming W. Seas
around 2 ft, then 1 foot or less.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ233-241800-
Vineyard Sound-
104 AM EDT Thu Apr 24 2025
.REST OF TONIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: W 1 foot at 4 seconds and S 1 foot at 7 seconds.
.THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
1 foot or less. Wave Detail: NE 1 foot at 2 seconds and SW 1 foot
at 5 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Seas 1 foot or less, then
around 2 ft after midnight. Wave Detail: S 1 foot at 3 seconds
and SE 1 foot at 10 seconds, becoming SW 2 ft at 4 seconds and SE
1 foot at 10 seconds.
.FRI...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 4 seconds and SE 1 foot at 10 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and
SE 1 foot at 9 seconds.
.SAT AND SAT NIGHT...W winds 20 to 25 kt with gusts up to 30 kt.
Seas 3 to 5 ft. Wave Detail: S 4 ft at 5 seconds and S 4 ft at
9 seconds. A chance of showers in the morning, then showers.
.SUN AND SUN NIGHT...NW winds 15 to 20 kt, diminishing to 10 to
15 kt. Seas 2 to 4 ft.
.MON AND MON NIGHT...W winds around 10 kt. Seas around 2 ft, then
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.
$$
ANZ234-241800-
Buzzards Bay-
104 AM EDT Thu Apr 24 2025
.REST OF TONIGHT...N winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: W 1 foot at 4 seconds and S 1 foot at 7 seconds.
.THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
1 foot or less. Wave Detail: NE 1 foot at 2 seconds and SW 1 foot
at 5 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Seas 1 foot or less, then
around 2 ft after midnight. Wave Detail: SE 1 foot at 3 seconds
and SE 1 foot at 9 seconds, becoming SW 2 ft at 3 seconds and SE
1 foot at 10 seconds.
.FRI...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas around 2 ft in the morning, then 1 foot or less.
Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 10 seconds,
becoming E 1 foot at 3 seconds and SW 1 foot at 4 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 1 foot or less, then around 2 ft after midnight.
Wave Detail: SE 1 foot at 3 seconds and SW 1 foot at 4 seconds,
becoming SW 2 ft at 4 seconds and SE 1 foot at 9 seconds.
.SAT AND SAT NIGHT...W winds 20 to 25 kt with gusts up to 30 kt.
Seas 3 to 5 ft. Wave Detail: SW 4 ft at 5 seconds and S 3 ft at
8 seconds. Showers.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas 2 to 3 ft.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ235-241800-
Rhode Island Sound-
104 AM EDT Thu Apr 24 2025
.REST OF TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 7 seconds and W 1 foot at 3 seconds.
.THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft in the morning, then 1 foot or less. Wave Detail: SW
2 ft at 6 seconds and N 1 foot at 2 seconds, becoming S 1 foot at
7 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 4 seconds and SE 2 ft at 9 seconds.
.FRI...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 4 seconds and SE 2 ft at 10 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and SE
2 ft at 9 seconds. A chance of showers after midnight.
.SAT AND SAT NIGHT...W winds 15 to 20 kt with gusts up to 30 kt.
Seas 4 to 6 ft. Wave Detail: S 6 ft at 8 seconds and S 5 ft at
5 seconds. Showers. A chance of showers after midnight.
.SUN...NW winds 15 to 20 kt. Seas 3 to 5 ft.
.SUN NIGHT...NW winds 10 to 15 kt. Seas 2 to 4 ft.
.MON AND MON NIGHT...W winds 10 to 15 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.
$$
ANZ237-241800-
Block Island Sound-
104 AM EDT Thu Apr 24 2025
.REST OF TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 7 seconds and W 1 foot at 3 seconds.
.THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft in the morning, then 1 foot or less. Wave Detail: SE
2 ft at 7 seconds and N 1 foot at 2 seconds, becoming S 1 foot at
7 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 5 seconds and SE 2 ft at 8 seconds.
.FRI...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 4 seconds and SE 2 ft at 10 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and SE
2 ft at 9 seconds. A chance of showers after midnight.
.SAT AND SAT NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt.
Seas 4 to 6 ft. Wave Detail: S 4 ft at 5 seconds and S 4 ft at
9 seconds. Showers. A chance of showers after midnight.
.SUN...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft.
.SUN NIGHT THROUGH MON NIGHT...SW winds 10 to 15 kt. Seas 2 to
3 ft.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ230-241800-
Boston Harbor-
104 AM EDT Thu Apr 24 2025
.REST OF TONIGHT...N winds 5 to 10 kt. Waves 1 foot or less.
.THU...NE winds around 5 kt, becoming SE 10 to 15 kt in the
afternoon. Waves 1 foot or less, then around 2 ft in the
afternoon.
.THU NIGHT...S winds 10 to 15 kt, becoming SW 5 to 10 kt after
midnight. Waves around 2 ft in the evening, then 1 foot or less.
.FRI...W winds around 5 kt, becoming E 10 to 15 kt in the
afternoon. Waves 1 foot or less, then around 2 ft in the
afternoon.
.FRI NIGHT...S winds 10 to 15 kt. Waves around 2 ft. A chance of
showers after midnight.
.SAT AND SAT NIGHT...W winds 15 to 20 kt with gusts up to 25 kt.
Waves around 2 ft. Showers. A chance of showers after midnight.
.SUN THROUGH MON NIGHT...SW winds 15 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.
$$
ANZ236-241800-
Narragansett Bay-
104 AM EDT Thu Apr 24 2025
.REST OF TONIGHT...N winds 5 to 10 kt. Waves 1 foot or less.
.THU...NE winds around 5 kt, becoming S in the afternoon. Waves
1 foot or less.
.THU NIGHT...SW winds 5 to 10 kt. Waves around 2 ft.
.FRI...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the
afternoon. Waves around 2 ft.
.FRI NIGHT...S winds 10 to 15 kt. Waves around 2 ft. A chance of
showers after midnight.
.SAT AND SAT NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt.
Waves 3 to 5 ft. Showers. A chance of showers after midnight.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Waves 2 to 3 ft.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
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www.weather.gov/boston
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CWFBOX
Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
104 AM EDT Thu Apr 24 2025
Coastal waters from the Merrimack River MA to Watch Hill RI out
to 25 NM
ANZ200-241800-
104 AM EDT Thu Apr 24 2025
.Synopsis for Massachusetts and Rhode Island coastal waters...
Following a cold front from earlier this morning, high pres
maintains control through Fri. Periodic chances for rainfall Fri
night into Sat as low pres crosses the region. Clearing conditions
Sun.
$$
ANZ250-241800-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
104 AM EDT Thu Apr 24 2025
.REST OF TONIGHT...NE winds 5 to 10 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: SE 2 ft at 8 seconds and W 1 foot
at 2 seconds.
.THU...NE winds around 5 kt, becoming SE 10 to 15 kt in the
afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 3 seconds
and SE 2 ft at 8 seconds.
.THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 4 seconds and SE 2 ft at
9 seconds.
.FRI...NW winds 5 to 10 kt, becoming E 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and
E 2 ft at 4 seconds.
.FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 4 seconds and SE 2 ft at
9 seconds.
.SAT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
5 ft, building to 5 to 7 ft in the afternoon. Wave Detail: SE
4 ft at 5 seconds and SE 3 ft at 9 seconds, becoming SE 4 ft at
6 seconds. A chance of showers in the morning, then showers in
the afternoon.
.SAT NIGHT...SW winds 15 to 20 kt, becoming W after midnight.
Gusts up to 30 kt. Seas 5 to 7 ft. Showers, mainly in the
evening.
.SUN...NW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft.
.SUN NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 5 ft.
.MON AND MON NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt,
becoming SW. Seas 2 to 4 ft.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ251-241800-
Massachusetts Bay and Ipswich Bay-
104 AM EDT Thu Apr 24 2025
.REST OF TONIGHT...N winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: NE 1 foot at 2 seconds and SE 1 foot at 8 seconds.
.THU...NE winds around 5 kt, becoming SE 10 to 15 kt in the
afternoon. Seas 1 foot or less, then around 2 ft in the
afternoon. Wave Detail: N 1 foot at 2 seconds and SE 1 foot at
8 seconds, becoming SE 2 ft at 3 seconds and SE 1 foot at
9 seconds.
.THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt, becoming
SW 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: SE
2 ft at 4 seconds and SE 1 foot at 9 seconds.
.FRI...NW winds around 5 kt, becoming E 10 to 15 kt in the
afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 4 seconds and
SW 1 foot at 3 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 4 seconds and
SE 1 foot at 9 seconds.
.SAT AND SAT NIGHT...W winds 15 to 20 kt with gusts up to 25 kt.
Seas 3 to 5 ft. Wave Detail: SE 3 ft at 4 seconds and SE 2 ft at
8 seconds. Showers. A chance of showers after midnight.
.SUN AND SUN NIGHT...NW winds 15 to 20 kt, diminishing to 10 to
15 kt. Seas 2 to 4 ft.
.MON AND MON NIGHT...NW winds 10 to 15 kt, becoming SW. 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.
$$
ANZ231-241800-
Cape Cod Bay-
104 AM EDT Thu Apr 24 2025
.REST OF TONIGHT...N winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: W 1 foot at 2 seconds and SE 1 foot at 8 seconds.
.THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
1 foot or less. Wave Detail: N 1 foot at 2 seconds and SE 1 foot
at 8 seconds.
.THU NIGHT...S winds 10 to 15 kt. Seas around 2 ft. Wave Detail:
SE 1 foot at 3 seconds and SE 1 foot at 9 seconds.
.FRI...W winds 5 to 10 kt, becoming E in the afternoon. Seas
1 foot or less. Wave Detail: SW 1 foot at 2 seconds and E 1 foot
at 3 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas around 2 ft. Wave Detail: SE 2 ft at 3 seconds and
SE 1 foot at 9 seconds.
.SAT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to
4 ft. Wave Detail: S 3 ft at 4 seconds and SE 2 ft at 8 seconds.
A chance of showers in the morning, then showers in the
afternoon.
.SAT NIGHT...SW winds 15 to 20 kt, becoming W after midnight.
Gusts up to 25 kt. Seas 3 to 4 ft. Showers.
.SUN THROUGH MON...NW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft.
.MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ254-241800-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
104 AM EDT Thu Apr 24 2025
.REST OF TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 7 seconds.
.THU...NE winds around 5 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 8 seconds and SW 1 foot at
2 seconds.
.THU NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 4 seconds and SE 2 ft at 10 seconds.
.FRI...W winds 10 to 15 kt with gusts up to 20 kt, becoming S
5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft
at 4 seconds and SE 2 ft at 10 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and SE
2 ft at 9 seconds.
.SAT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft, building to 5 to 7 ft in the afternoon. Wave Detail: S 4 ft
at 5 seconds and SE 2 ft at 9 seconds, becoming S 5 ft at
5 seconds and SE 4 ft at 9 seconds. A chance of showers in the
morning, then showers in the afternoon.
.SAT NIGHT...SW winds 15 to 20 kt, becoming W after midnight.
Gusts up to 25 kt. Seas 5 to 7 ft. Showers.
.SUN AND SUN NIGHT...NW winds 10 to 15 kt with gusts up to 20 kt.
Seas 4 to 6 ft.
.MON...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft.
.MON NIGHT...W 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.
$$
ANZ255-241800-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
104 AM EDT Thu Apr 24 2025
.REST OF TONIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 7 seconds.
.THU...N winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: S 2 ft at 7 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 5 seconds and SE 2 ft at 10 seconds.
.FRI...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft
at 4 seconds and SE 2 ft at 10 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and
SE 2 ft at 9 seconds.
.SAT...S winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. Gusts up to 30 kt. Seas 3 to 5 ft, building to 5 to
7 ft in the afternoon. Wave Detail: S 5 ft at 5 seconds and SE
2 ft at 9 seconds, becoming S 6 ft at 6 seconds and SE 6 ft at
9 seconds. A chance of showers in the morning, then showers in
the afternoon.
.SAT NIGHT...SW winds 20 to 25 kt, becoming W 15 to 20 kt after
midnight. Seas 5 to 7 ft. Showers.
.SUN...NW winds 15 to 20 kt. Seas 5 to 7 ft.
.SUN NIGHT...NW winds 10 to 15 kt. Seas 3 to 5 ft.
.MON AND MON NIGHT...NW winds 10 to 15 kt, becoming W. Seas 2 to
4 ft.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ256-241800-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
104 AM EDT Thu Apr 24 2025
.REST OF TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 7 seconds and NW 1 foot at 3 seconds.
.THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: S 2 ft at 7 seconds and N 1 foot at
2 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 4 seconds and SE 2 ft at 9 seconds.
.FRI...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft
at 4 seconds and SE 2 ft at 10 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and SE
2 ft at 9 seconds.
.SAT...S winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to
5 ft, building to 5 to 7 ft in the afternoon. Wave Detail: S 5 ft
at 5 seconds and SE 2 ft at 9 seconds, becoming S 7 ft at
9 seconds and SW 5 ft at 6 seconds. A chance of showers in the
morning, then showers in the afternoon.
.SAT NIGHT...SW winds 20 to 25 kt, becoming W 15 to 20 kt after
midnight. Seas 5 to 7 ft. Showers.
.SUN...NW winds 15 to 20 kt. Seas 4 to 6 ft.
.SUN NIGHT...NW winds 10 to 15 kt. Seas 3 to 5 ft.
.MON AND MON NIGHT...W winds 10 to 15 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.
$$
ANZ232-241800-
Nantucket Sound-
104 AM EDT Thu Apr 24 2025
.REST OF TONIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: SW 1 foot at 3 seconds and E 1 foot at 4 seconds.
.THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
1 foot or less. Wave Detail: NE 1 foot at 3 seconds and SW 1 foot
at 5 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 1 foot or less, then around 2 ft after midnight.
Wave Detail: SE 1 foot at 3 seconds and SE 1 foot at 9 seconds,
becoming S 2 ft at 3 seconds and SE 1 foot at 10 seconds.
.FRI...SW winds 5 to 10 kt. Seas around 2 ft in the morning, then
1 foot or less. Wave Detail: SW 2 ft at 3 seconds and SE 1 foot
at 10 seconds, becoming SW 1 foot at 3 seconds and SE 1 foot at
4 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Seas 1 foot or less, then
around 2 ft after midnight. Wave Detail: S 1 foot at 3 seconds
and SE 1 foot at 9 seconds, becoming S 2 ft at 4 seconds and SE
1 foot at 9 seconds.
.SAT...S winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
5 ft. Wave Detail: S 4 ft at 4 seconds and SE 2 ft at 9 seconds.
A chance of showers in the morning, then showers in the
afternoon.
.SAT NIGHT...SW winds 15 to 20 kt, becoming W after midnight.
Gusts up to 25 kt. Seas 3 to 5 ft. Showers.
.SUN AND SUN NIGHT...NW winds 10 to 15 kt. Gusts up to 20 kt.
Seas 2 to 4 ft.
.MON AND MON NIGHT...NW winds around 10 kt, becoming W. Seas
around 2 ft, then 1 foot or less.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ233-241800-
Vineyard Sound-
104 AM EDT Thu Apr 24 2025
.REST OF TONIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: W 1 foot at 4 seconds and S 1 foot at 7 seconds.
.THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
1 foot or less. Wave Detail: NE 1 foot at 2 seconds and SW 1 foot
at 5 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Seas 1 foot or less, then
around 2 ft after midnight. Wave Detail: S 1 foot at 3 seconds
and SE 1 foot at 10 seconds, becoming SW 2 ft at 4 seconds and SE
1 foot at 10 seconds.
.FRI...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 4 seconds and SE 1 foot at 10 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and
SE 1 foot at 9 seconds.
.SAT AND SAT NIGHT...W winds 20 to 25 kt with gusts up to 30 kt.
Seas 3 to 5 ft. Wave Detail: S 4 ft at 5 seconds and S 4 ft at
9 seconds. A chance of showers in the morning, then showers.
.SUN AND SUN NIGHT...NW winds 15 to 20 kt, diminishing to 10 to
15 kt. Seas 2 to 4 ft.
.MON AND MON NIGHT...W winds around 10 kt. Seas around 2 ft, then
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.
$$
ANZ234-241800-
Buzzards Bay-
104 AM EDT Thu Apr 24 2025
.REST OF TONIGHT...N winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: W 1 foot at 4 seconds and S 1 foot at 7 seconds.
.THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
1 foot or less. Wave Detail: NE 1 foot at 2 seconds and SW 1 foot
at 5 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Seas 1 foot or less, then
around 2 ft after midnight. Wave Detail: SE 1 foot at 3 seconds
and SE 1 foot at 9 seconds, becoming SW 2 ft at 3 seconds and SE
1 foot at 10 seconds.
.FRI...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas around 2 ft in the morning, then 1 foot or less.
Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 10 seconds,
becoming E 1 foot at 3 seconds and SW 1 foot at 4 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 1 foot or less, then around 2 ft after midnight.
Wave Detail: SE 1 foot at 3 seconds and SW 1 foot at 4 seconds,
becoming SW 2 ft at 4 seconds and SE 1 foot at 9 seconds.
.SAT AND SAT NIGHT...W winds 20 to 25 kt with gusts up to 30 kt.
Seas 3 to 5 ft. Wave Detail: SW 4 ft at 5 seconds and S 3 ft at
8 seconds. Showers.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas 2 to 3 ft.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ235-241800-
Rhode Island Sound-
104 AM EDT Thu Apr 24 2025
.REST OF TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 7 seconds and W 1 foot at 3 seconds.
.THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft in the morning, then 1 foot or less. Wave Detail: SW
2 ft at 6 seconds and N 1 foot at 2 seconds, becoming S 1 foot at
7 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 4 seconds and SE 2 ft at 9 seconds.
.FRI...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 4 seconds and SE 2 ft at 10 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and SE
2 ft at 9 seconds. A chance of showers after midnight.
.SAT AND SAT NIGHT...W winds 15 to 20 kt with gusts up to 30 kt.
Seas 4 to 6 ft. Wave Detail: S 6 ft at 8 seconds and S 5 ft at
5 seconds. Showers. A chance of showers after midnight.
.SUN...NW winds 15 to 20 kt. Seas 3 to 5 ft.
.SUN NIGHT...NW winds 10 to 15 kt. Seas 2 to 4 ft.
.MON AND MON NIGHT...W winds 10 to 15 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.
$$
ANZ237-241800-
Block Island Sound-
104 AM EDT Thu Apr 24 2025
.REST OF TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 7 seconds and W 1 foot at 3 seconds.
.THU...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft in the morning, then 1 foot or less. Wave Detail: SE
2 ft at 7 seconds and N 1 foot at 2 seconds, becoming S 1 foot at
7 seconds.
.THU NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 5 seconds and SE 2 ft at 8 seconds.
.FRI...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 4 seconds and SE 2 ft at 10 seconds.
.FRI NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and SE
2 ft at 9 seconds. A chance of showers after midnight.
.SAT AND SAT NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt.
Seas 4 to 6 ft. Wave Detail: S 4 ft at 5 seconds and S 4 ft at
9 seconds. Showers. A chance of showers after midnight.
.SUN...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft.
.SUN NIGHT THROUGH MON NIGHT...SW winds 10 to 15 kt. Seas 2 to
3 ft.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ230-241800-
Boston Harbor-
104 AM EDT Thu Apr 24 2025
.REST OF TONIGHT...N winds 5 to 10 kt. Waves 1 foot or less.
.THU...NE winds around 5 kt, becoming SE 10 to 15 kt in the
afternoon. Waves 1 foot or less, then around 2 ft in the
afternoon.
.THU NIGHT...S winds 10 to 15 kt, becoming SW 5 to 10 kt after
midnight. Waves around 2 ft in the evening, then 1 foot or less.
.FRI...W winds around 5 kt, becoming E 10 to 15 kt in the
afternoon. Waves 1 foot or less, then around 2 ft in the
afternoon.
.FRI NIGHT...S winds 10 to 15 kt. Waves around 2 ft. A chance of
showers after midnight.
.SAT AND SAT NIGHT...W winds 15 to 20 kt with gusts up to 25 kt.
Waves around 2 ft. Showers. A chance of showers after midnight.
.SUN THROUGH MON NIGHT...SW winds 15 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.
$$
ANZ236-241800-
Narragansett Bay-
104 AM EDT Thu Apr 24 2025
.REST OF TONIGHT...N winds 5 to 10 kt. Waves 1 foot or less.
.THU...NE winds around 5 kt, becoming S in the afternoon. Waves
1 foot or less.
.THU NIGHT...SW winds 5 to 10 kt. Waves around 2 ft.
.FRI...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the
afternoon. Waves around 2 ft.
.FRI NIGHT...S winds 10 to 15 kt. Waves around 2 ft. A chance of
showers after midnight.
.SAT AND SAT NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt.
Waves 3 to 5 ft. Showers. A chance of showers after midnight.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Waves 2 to 3 ft.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
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