000
FZUS51 KBOX 250804
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
404 AM EDT Thu Apr 25 2024

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

ANZ200-252100-
404 AM EDT Thu Apr 25 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
Surface high pressure anchored across the eastern Great Lakes is the
dominant weather feature through early Saturday, leading to tranquil
boating conditions for late April. A weak warm front clips the
northern waters Saturday night into early Sunday with a few showers
possible, better chance of unsettled weather Tuesday into Wednesday.

$$

ANZ250-252100-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
404 AM EDT Thu Apr 25 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

.TODAY...N winds 10 to 15 kt with gusts up to 20 kt, becoming SE
5 to 10 kt this afternoon. Seas 4 to 6 ft, subsiding to 3 to 4 ft
this afternoon. Wave Detail: N 6 ft at 6 seconds, becoming NE
4 ft at 7 seconds and NW 1 ft at 4 seconds.
.TONIGHT...S winds around 10 kt, becoming W after midnight. Seas
2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and W 2 ft at
3 seconds.
.FRI...NE winds 5 to 10 kt, becoming E in the afternoon. Seas
around 2 ft. Wave Detail: NE 2 ft at 8 seconds and W 1 ft at
3 seconds.
.FRI NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas
around 2 ft. Wave Detail: E 2 ft at 7 seconds and S 1 ft at
2 seconds.
.SAT...W winds 5 to 10 kt, becoming S in the afternoon. Seas
around 2 ft. Wave Detail: E 2 ft at 8 seconds and SW 1 ft at
3 seconds.
.SAT NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: S 3 ft at 3 seconds and E
2 ft at 9 seconds. A chance of showers after midnight.
.SUN...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers.
.SUN NIGHT THROUGH MON NIGHT...SE 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.

$$

ANZ251-252100-
Massachusetts Bay and Ipswich Bay-
404 AM EDT Thu Apr 25 2024

.TODAY...N winds 10 to 15 kt, becoming SE this afternoon. Seas
2 to 4 ft. Wave Detail: NE 4 ft at 8 seconds and NW 2 ft at
5 seconds.
.TONIGHT...S winds 10 to 15 kt, becoming W 5 to 10 kt after
midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and S
1 ft at 3 seconds.
.FRI...NE winds 5 to 10 kt, becoming E in the afternoon. Seas
around 2 ft. Wave Detail: NE 2 ft at 7 seconds and W 1 ft at
3 seconds.
.FRI NIGHT...S winds around 10 kt, becoming SW after midnight.
Seas around 2 ft. Wave Detail: SE 2 ft at 3 seconds and E 2 ft at
7 seconds.
.SAT...SW winds 5 to 10 kt, becoming SE 10 to 15 kt in the
afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 3 seconds
and E 1 ft at 8 seconds.
.SAT NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds and E
2 ft at 9 seconds. A chance of showers after midnight.
.SUN...S winds 10 to 15 kt. Seas around 2 ft. A chance of
showers.
.SUN NIGHT THROUGH MON NIGHT...SE 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.

$$

ANZ231-252100-
Cape Cod Bay-
404 AM EDT Thu Apr 25 2024

.TODAY...N winds 10 to 15 kt with gusts up to 20 kt, becoming NE
5 to 10 kt this afternoon. Seas 2 to 4 ft. Wave Detail: N 3 ft at
5 seconds.
.TONIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas
around 2 ft. Wave Detail: N 2 ft at 7 seconds and S 1 ft at
4 seconds.
.FRI...N winds around 5 kt, becoming NE in the afternoon. Seas
around 2 ft in the morning, then 1 foot or less. Wave Detail: N
1 ft at 5 seconds.
.FRI NIGHT...S winds around 5 kt, becoming SW after midnight.
Seas 1 foot or less. Wave Detail: SE 1 ft at 3 seconds and NE
1 ft at 6 seconds.
.SAT...W winds around 5 kt, becoming S in the afternoon. Seas
1 foot or less. Wave Detail: NW 1 ft at 2 seconds and NE 1 ft at
6 seconds.
.SAT NIGHT...SW winds around 10 kt. Seas 1 foot or less. Wave
Detail: S 1 ft at 2 seconds and E 1 ft at 7 seconds.
.SUN THROUGH MON NIGHT...SE winds 10 to 15 kt with gusts up to
20 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.

$$

ANZ254-252100-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
404 AM EDT Thu Apr 25 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

.TODAY...N winds 15 to 20 kt, becoming NE 5 to 10 kt this
afternoon. Seas 4 to 6 ft. Wave Detail: NE 6 ft at 7 seconds and
W 2 ft at 7 seconds.
.TONIGHT...SE winds 5 to 10 kt, becoming NW after midnight. Seas
2 to 4 ft. Wave Detail: NE 4 ft at 7 seconds and SW 1 ft at
7 seconds.
.FRI...N winds around 5 kt, becoming NE in the afternoon. Seas
2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and W 1 ft at
6 seconds.
.FRI NIGHT...S winds around 5 kt, becoming W after midnight. Seas
around 2 ft. Wave Detail: E 2 ft at 8 seconds and N 1 ft at
4 seconds.
.SAT AND SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: E 2 ft at 8 seconds and N 1 ft at 3 seconds.
.SUN THROUGH MON NIGHT...SE winds 10 to 15 kt with gusts up to
20 kt. Seas 2 to 4 ft. Wave Detail: E 4 ft at 13 seconds and SW
3 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.

$$

ANZ255-252100-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
404 AM EDT Thu Apr 25 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

.TODAY...NE winds 15 to 20 kt, diminishing to 10 to 15 kt this
afternoon. Seas 4 to 6 ft, subsiding to 2 to 4 ft this afternoon.
Wave Detail: NE 5 ft at 7 seconds and SW 3 ft at 7 seconds,
becoming NE 4 ft at 8 seconds and SW 2 ft at 7 seconds.
.TONIGHT...SE winds 5 to 10 kt, becoming N after midnight. Seas
2 to 4 ft. Wave Detail: E 3 ft at 8 seconds and S 2 ft at
6 seconds.
.FRI...NE winds around 5 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: E 2 ft at 8 seconds and SW 1 ft at
6 seconds.
.FRI NIGHT...S winds around 5 kt, becoming W after midnight. Seas
around 2 ft. Wave Detail: SE 2 ft at 8 seconds.
.SAT AND SAT NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds.
.SUN THROUGH MON NIGHT...SE winds 10 to 15 kt with gusts up to
20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E
3 ft at 13 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.

$$

ANZ256-252100-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
404 AM EDT Thu Apr 25 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON...

.TODAY...NE winds 15 to 20 kt, becoming E 5 to 10 kt this
afternoon. Seas 4 to 6 ft, subsiding to 3 to 4 ft this afternoon.
Wave Detail: NE 5 ft at 8 seconds and SW 3 ft at 7 seconds,
becoming E 4 ft at 8 seconds and S 2 ft at 7 seconds.
.TONIGHT...SE winds 5 to 10 kt, becoming N after midnight. Seas
2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and S 1 ft at
6 seconds.
.FRI...NE winds around 5 kt, becoming S in the afternoon. Seas
around 2 ft. Wave Detail: E 2 ft at 8 seconds.
.FRI NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 8 seconds.
.SAT AND SAT NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds.
.SUN THROUGH MON NIGHT...SE winds 10 to 15 kt with gusts up to
20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E
3 ft at 13 seconds.

Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.

$$

ANZ232-252100-
Nantucket Sound-
404 AM EDT Thu Apr 25 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING...

.TODAY...NE winds 15 to 20 kt, diminishing to around 10 kt this
afternoon. Seas 2 to 4 ft. Wave Detail: NE 3 ft at 5 seconds and
SW 1 ft at 7 seconds.
.TONIGHT...SE winds 5 to 10 kt, becoming W after midnight. Seas
around 2 ft. Wave Detail: E 2 ft at 8 seconds and SE 1 ft at
5 seconds.
.FRI...N winds around 5 kt, becoming SE in the afternoon. Seas
around 2 ft in the morning, then 1 foot or less. Wave Detail: W
1 ft at 5 seconds and E 1 ft at 8 seconds, becoming SE 1 ft at
2 seconds and E 1 ft at 8 seconds.
.FRI NIGHT...SW winds around 5 kt. Seas 1 foot or less. Wave
Detail: S 1 ft at 2 seconds and E 1 ft at 8 seconds.
.SAT AND SAT NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less.
Wave Detail: W 1 ft at 2 seconds and E 1 ft at 8 seconds.
.SUN THROUGH MON NIGHT...SE winds 10 to 15 kt with gusts up to
20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E
2 ft at 10 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.

$$

ANZ233-252100-
Vineyard Sound-
404 AM EDT Thu Apr 25 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING...

.TODAY...NE winds 10 to 15 kt with gusts up to 20 kt, becoming E
5 to 10 kt this afternoon. Seas 2 to 3 ft. Wave Detail: NE 2 ft
at 4 seconds and SW 2 ft at 6 seconds.
.TONIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas
around 2 ft in the evening, then 1 foot or less. Wave Detail: SE
1 ft at 5 seconds, becoming S 1 ft at 4 seconds and E 1 ft at
7 seconds.
.FRI...N winds around 5 kt, becoming S in the afternoon. Seas
1 foot or less. Wave Detail: S 1 ft at 4 seconds and SE 1 ft at
8 seconds.
.FRI NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: SW 1 ft at 2 seconds and SE 1 ft at 8 seconds.
.SAT AND SAT NIGHT...SW winds 10 to 15 kt. Seas 1 foot or less.
Wave Detail: SW 1 ft at 3 seconds and SE 1 ft at 8 seconds.
.SUN THROUGH MON NIGHT...SE winds 10 to 15 kt with gusts up to
20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE
1 ft at 8 seconds.

Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.

$$

ANZ234-252100-
Buzzards Bay-
404 AM EDT Thu Apr 25 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING...

.TODAY...NE winds 10 to 15 kt with gusts up to 20 kt, becoming E
5 to 10 kt this afternoon. Seas around 2 ft. Wave Detail: NE 2 ft
at 3 seconds and SW 1 ft at 6 seconds.
.TONIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas
1 foot or less. Wave Detail: SE 1 ft at 5 seconds.
.FRI...N winds around 5 kt, becoming S in the afternoon. Seas
1 foot or less. Wave Detail: S 1 ft at 3 seconds and E 1 ft at
8 seconds.
.FRI NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: SW 1 ft at 3 seconds and SE 1 ft at 7 seconds.
.SAT AND SAT NIGHT...SW winds 10 to 15 kt. Seas 1 foot or less.
Wave Detail: SW 1 ft at 3 seconds and SE 1 ft at 7 seconds.
.SUN THROUGH MON NIGHT...SE winds 10 to 15 kt with gusts up to
20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E
2 ft at 12 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.

$$

ANZ235-252100-
Rhode Island Sound-
404 AM EDT Thu Apr 25 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING...

.TODAY...NE winds 10 to 15 kt with gusts up to 20 kt, becoming SE
5 to 10 kt this afternoon. Seas 2 to 4 ft. Wave Detail: NE 4 ft
at 7 seconds and S 2 ft at 7 seconds.
.TONIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds.
.FRI...N winds around 5 kt, becoming S in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 8 seconds and S 1 ft at
5 seconds.
.FRI NIGHT...SW winds 5 to 10 kt. Seas around 2 ft in the
evening, then 1 foot or less. Wave Detail: SE 2 ft at 8 seconds
and SW 1 ft at 3 seconds, becoming SW 1 ft at 3 seconds and SE
1 ft at 8 seconds.
.SAT AND SAT NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave
Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds.
.SUN THROUGH MON NIGHT...SE winds 10 to 15 kt with gusts up to
20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE
2 ft at 8 seconds.

Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.

$$

ANZ237-252100-
Block Island Sound-
404 AM EDT Thu Apr 25 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING...

.TODAY...NE winds 10 to 15 kt with gusts up to 20 kt, becoming SE
5 to 10 kt this afternoon. Seas 2 to 4 ft. Wave Detail: NE 4 ft
at 7 seconds and S 2 ft at 7 seconds.
.TONIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds.
.FRI...NE winds around 5 kt, becoming S in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 8 seconds and S 1 ft at
4 seconds.
.FRI NIGHT...SW winds 5 to 10 kt. Seas around 2 ft in the
evening, then 1 foot or less. Wave Detail: SE 2 ft at 8 seconds
and SW 1 ft at 3 seconds, becoming SW 1 ft at 3 seconds and SE
1 ft at 8 seconds.
.SAT AND SAT NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 8 seconds and W 1 ft at 2 seconds.
.SUN THROUGH MON NIGHT...SE winds 10 to 15 kt with gusts up to
20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE
2 ft at 8 seconds.

Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.

$$

ANZ230-252100-
Boston Harbor-
404 AM EDT Thu Apr 25 2024

.TODAY...N winds 5 to 10 kt, becoming E this afternoon. Waves
around 2 ft this morning, then 1 foot or less.
.TONIGHT...S winds around 10 kt, becoming W after midnight. Waves
1 foot or less.
.FRI...NE winds 5 to 10 kt, becoming E in the afternoon. Waves
1 foot or less.
.FRI NIGHT...S winds around 10 kt, becoming SW after midnight.
Waves 1 foot or less.
.SAT...SW winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up
to 20 kt in the afternoon. Waves 1 foot or less, then around 2 ft
in the afternoon.
.SAT NIGHT...S winds 15 to 20 kt, becoming SW 10 to 15 kt after
midnight. Waves around 2 ft. A chance of showers after midnight.
.SUN...SW winds 10 to 15 kt. Waves around 2 ft. A chance of
showers.
.SUN NIGHT AND MON...SW winds 5 to 10 kt, becoming NE. Waves
around 2 ft, then 1 foot or less.
.MON NIGHT...SE winds 5 to 10 kt. Waves 1 foot or less. A chance
of showers.

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.

$$

ANZ236-252100-
Narragansett Bay-
404 AM EDT Thu Apr 25 2024

.TODAY...NE winds 10 to 15 kt with gusts up to 20 kt, becoming SE
5 to 10 kt this afternoon. Waves 2 to 3 ft.
.TONIGHT...S winds 5 to 10 kt, becoming W after midnight. Waves
around 2 ft in the evening, then 1 foot or less.
.FRI...N winds around 5 kt, becoming S in the afternoon. Waves
1 foot or less.
.FRI NIGHT...S winds 5 to 10 kt, becoming SW after midnight.
Waves 1 foot or less.
.SAT...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up
to 20 kt in the afternoon. Waves 1 foot or less.
.SAT NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Waves around 2 ft. A chance of showers after midnight.
.SUN...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around
2 ft. A chance of showers.
.SUN NIGHT THROUGH MON NIGHT...SE 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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