000
FZUS51 KBOX 181402
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
1001 AM EDT Thu Apr 18 2024

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

ANZ200-190300-
1001 AM EDT Thu Apr 18 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
A warm front lifts toward the southern waters today, while high pres
remains planted over the Gulf of ME/Nova Scotia. The high nudges
back in for much of Fri before a cold front sweeps through late Fri
into Sat. High pres nudges in on Sun from the Mississippi River
Valley.

$$

ANZ250-190300-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
1001 AM EDT Thu Apr 18 2024

.THIS AFTERNOON...E winds around 10 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: E 2 ft at 3 seconds and SE 2 ft at
8 seconds. A slight chance of showers.
.TONIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 4 seconds and E 2 ft at 12 seconds.
.FRI...E winds 5 to 10 kt, becoming SE 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: E 2 ft at 5 seconds and E
2 ft at 11 seconds.
.FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. Wave Detail: SE 3 ft at 4 seconds and E 2 ft at
11 seconds. A chance of showers after midnight.
.SAT...SW winds around 10 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft
at 4 seconds and E 1 ft at 4 seconds. A chance of showers in the
morning.
.SAT NIGHT...W winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: W 3 ft
at 4 seconds and SE 2 ft at 5 seconds.
.SUN THROUGH MON...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft.
.MON NIGHT...S 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.

$$

ANZ251-190300-
Massachusetts Bay and Ipswich Bay-
1001 AM EDT Thu Apr 18 2024

.THIS AFTERNOON...E winds around 10 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: E 2 ft at 3 seconds and E 1 ft at
8 seconds. A slight chance of showers.
.TONIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E
2 ft at 4 seconds and SE 1 ft at 8 seconds.
.FRI...E winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 5 seconds and E 1 ft at 11 seconds.
.FRI 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 4 seconds and SE
2 ft at 4 seconds. A chance of showers after midnight.
.SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft
at 4 seconds and E 1 ft at 5 seconds. A chance of showers in the
morning.
.SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft. Wave Detail: W 2 ft at 3 seconds and SE 1 ft at
5 seconds.
.SUN THROUGH MON NIGHT...S 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.

$$

ANZ231-190300-
Cape Cod Bay-
1001 AM EDT Thu Apr 18 2024

.THIS AFTERNOON...E winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: E 1 ft at 2 seconds and SE 1 ft at
7 seconds. A slight chance of showers.
.TONIGHT...E winds around 10 kt. Seas around 2 ft. Wave Detail: E
1 ft at 3 seconds and SE 1 ft at 7 seconds.
.FRI...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft
at 6 seconds and E 1 ft at 3 seconds.
.FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 1 ft at 3 seconds and S 1 ft at 4 seconds. A chance of showers
after midnight.
.SAT...SW winds 5 to 10 kt. Seas around 2 ft in the morning, then
1 foot or less. Wave Detail: S 2 ft at 4 seconds and E 1 ft at
4 seconds, becoming W 1 ft at 2 seconds and SE 1 ft at 5 seconds.
A chance of showers in the morning.
.SAT NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas
around 2 ft. Wave Detail: W 2 ft at 3 seconds and SE 1 ft at
6 seconds.
.SUN THROUGH MON NIGHT...S 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.

$$

ANZ254-190300-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
1001 AM EDT Thu Apr 18 2024

.THIS AFTERNOON...E winds 10 to 15 kt with gusts up to 25 kt.
Seas 3 to 4 ft. Wave Detail: E 2 ft at 3 seconds and SE 2 ft at
7 seconds. A slight chance of showers.
.TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Wave Detail: E 2 ft at 4 seconds and S 2 ft at 7 seconds.
.FRI...E winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 2 ft
at 5 seconds and E 2 ft at 11 seconds.
.FRI NIGHT...SE winds 10 to 15 kt, becoming S 5 to 10 kt after
midnight. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 5 seconds and E
2 ft at 11 seconds. A chance of showers after midnight.
.SAT...SW winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft
at 4 seconds and E 2 ft at 11 seconds. A chance of showers.
.SAT NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 4 ft. Wave Detail: NW 3 ft at 4 seconds and SE 3 ft at
6 seconds.
.SUN THROUGH MON...SW winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 4 ft.
.MON NIGHT...S 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.

$$

ANZ255-190300-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
1001 AM EDT Thu Apr 18 2024

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

.THIS AFTERNOON...E winds 15 to 20 kt with gusts up to 30 kt.
Seas 3 to 5 ft. Wave Detail: E 3 ft at 3 seconds and SE 2 ft at
7 seconds. A chance of showers this morning.
.TONIGHT...E winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: SE 3 ft at 5 seconds and SE 1 ft at
12 seconds.
.FRI...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Wave Detail: SE 4 ft at 7 seconds and E 1 ft at 4 seconds.
.FRI NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave
Detail: SE 4 ft at 7 seconds and E 1 ft at 4 seconds. A chance of
showers after midnight.
.SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 6 seconds and
W 2 ft at 4 seconds. A chance of showers.
.SAT NIGHT...W winds 10 to 15 kt, becoming NW 15 to 20 kt after
midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: W 3 ft
at 5 seconds and SE 3 ft at 7 seconds.
.SUN THROUGH MON...W winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 4 ft.
.MON NIGHT...S 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.

$$

ANZ256-190300-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
1001 AM EDT Thu Apr 18 2024

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

.THIS AFTERNOON...E winds 20 to 25 kt, diminishing to 15 to
20 kt. Gusts up to 30 kt. Seas 5 to 6 ft. Wave Detail: SE 4 ft at
5 seconds and SE 1 ft at 13 seconds. A chance of showers this
morning.
.TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. Wave Detail: E 4 ft at 6 seconds and SE 1 ft at 12 seconds.
.FRI...E winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to
5 ft. Wave Detail: SE 4 ft at 7 seconds and NE 1 ft at 3 seconds.
.FRI NIGHT...SE winds 10 to 15 kt, becoming S 5 to 10 kt after
midnight. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and E
1 ft at 11 seconds. A chance of showers after midnight.
.SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 7 seconds and
W 2 ft at 4 seconds. A chance of showers in the morning.
.SAT NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas
around 3 ft. Wave Detail: W 3 ft at 4 seconds and SE 3 ft at
7 seconds.
.SUN THROUGH MON NIGHT...SW winds 15 to 20 kt with gusts up to
25 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.

$$

ANZ232-190300-
Nantucket Sound-
1001 AM EDT Thu Apr 18 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON...

.THIS AFTERNOON...E winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Wave Detail: E 2 ft at 3 seconds and SE 1 ft at
7 seconds. A slight chance of showers.
.TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: E 2 ft at 3 seconds and S 1 ft at 6 seconds.
.FRI...E winds 10 to 15 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 5 seconds and E 1 ft at 12 seconds.
.FRI NIGHT...SE winds 10 to 15 kt, becoming S 5 to 10 kt after
midnight. Seas around 2 ft. Wave Detail: E 2 ft at 4 seconds and
S 2 ft at 4 seconds. A chance of showers after midnight.
.SAT...SW winds 5 to 10 kt. Seas around 2 ft in the morning, then
1 foot or less. Wave Detail: S 2 ft at 4 seconds and E 1 ft at
5 seconds, becoming S 1 ft at 4 seconds and E 1 ft at 5 seconds.
A chance of showers in the morning.
.SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft. Wave Detail: W 2 ft at 4 seconds and SE 1 ft at
6 seconds.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to
25 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.

$$

ANZ233-190300-
Vineyard Sound-
1001 AM EDT Thu Apr 18 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON...

.THIS AFTERNOON...E winds around 15 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Wave Detail: E 2 ft at 3 seconds and SE 2 ft at
6 seconds. A slight chance of showers.
.TONIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the evening.
Seas around 2 ft. Wave Detail: E 2 ft at 3 seconds and SE 2 ft at
6 seconds.
.FRI...E winds around 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 7 seconds and E 1 ft at 2 seconds.
.FRI NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 6 seconds and S 1 ft at 3 seconds. A chance of showers
after midnight.
.SAT...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: SE 2 ft at 6 seconds and SW 1 ft at 3 seconds,
becoming SW 1 ft at 4 seconds and SE 1 ft at 6 seconds. A chance
of showers in the morning.
.SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft. Wave Detail: W 2 ft at 4 seconds and S 2 ft at
7 seconds.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to
25 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.

$$

ANZ234-190300-
Buzzards Bay-
1001 AM EDT Thu Apr 18 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON...

.THIS AFTERNOON...E winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Wave Detail: E 2 ft at 3 seconds and S 1 ft at
6 seconds. A slight chance of showers.
.TONIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: E 2 ft at 3 seconds and SE
2 ft at 6 seconds.
.FRI...E winds around 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 7 seconds and E 1 ft at 2 seconds.
.FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 4 seconds and SE 1 ft at 3 seconds. A chance of showers
after midnight.
.SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 1 foot or less. Wave Detail: SW 1 ft at 3 seconds
and SE 1 ft at 6 seconds. A chance of showers in the morning.
.SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft. Wave Detail: SW 2 ft at 5 seconds and E 1 ft at
5 seconds.
.SUN...W winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft.
.SUN NIGHT THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up
to 25 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.

$$

ANZ235-190300-
Rhode Island Sound-
1001 AM EDT Thu Apr 18 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON...

.THIS AFTERNOON...E winds 15 to 20 kt with gusts up to 30 kt.
Seas 3 to 4 ft. Wave Detail: SE 3 ft at 5 seconds and SE 1 ft at
14 seconds. A chance of showers this morning.
.TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: SE 4 ft at 7 seconds and E 2 ft at 4 seconds.
.FRI...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 7 seconds and NE 1 ft at 3 seconds.
.FRI NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 7 seconds and E 1 ft at 3 seconds. A chance of showers
after midnight.
.SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and
SW 2 ft at 4 seconds. A chance of showers in the morning.
.SAT NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and SE 2 ft at
7 seconds.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to
25 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.

$$

ANZ237-190300-
Block Island Sound-
1001 AM EDT Thu Apr 18 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 PM EDT THIS AFTERNOON...

.THIS AFTERNOON...E winds 15 to 20 kt with gusts up to 30 kt.
Seas 3 to 5 ft. Wave Detail: SE 3 ft at 5 seconds and SE 1 ft at
14 seconds. A chance of showers.
.TONIGHT...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: E 4 ft at 6 seconds and SE 1 ft at 13 seconds.
.FRI...E winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft
at 7 seconds and E 1 ft at 4 seconds.
.FRI NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and E 1 ft at
4 seconds. A chance of showers after midnight.
.SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and
W 2 ft at 3 seconds. A chance of showers in the morning.
.SAT NIGHT...W winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 3 ft. Wave Detail: W 2 ft at 4 seconds and SE 2 ft at
7 seconds.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to
25 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.

$$

ANZ230-190300-
Boston Harbor-
1001 AM EDT Thu Apr 18 2024

.THIS AFTERNOON...E winds around 10 kt with gusts up to 20 kt.
Waves around 2 ft. A slight chance of showers.
.TONIGHT...E winds 5 to 10 kt. Waves around 2 ft in the evening,
then 1 foot or less.
.FRI...E 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 2 to 3 ft
in the afternoon.
.FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Waves 2 to 3 ft in the
evening, then 1 foot or less. A chance of showers after midnight.
.SAT...SW winds 5 to 10 kt, becoming W 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. A chance of showers in the morning.
.SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Waves
around 2 ft.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up 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.

$$

ANZ236-190300-
Narragansett Bay-
1001 AM EDT Thu Apr 18 2024

.THIS AFTERNOON...E winds 10 to 15 kt with gusts up to 25 kt.
Waves 2 to 3 ft. A chance of showers.
.TONIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt in the evening.
Waves 2 to 3 ft.
.FRI...E winds 5 to 10 kt, becoming SE in the afternoon. Waves
around 2 ft.
.FRI NIGHT...S winds 5 to 10 kt. Waves 2 to 3 ft. A chance of
showers after midnight.
.SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. Waves 2 to 3 ft. A chance of
showers in the morning.
.SAT NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Waves around 2 ft.
.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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