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000
FZUS51 KBOX 162302
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
701 PM EDT Tue Apr 16 2024

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

ANZ200-171200-
701 PM EDT Tue Apr 16 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pres builds over the waters through Wed. A warm front lifts
toward the southern waters on Thu, while high pres remains planted
over the eastern waters. The high nudges back in for much of Fri
before a cold front approaches from the west late Fri through Sat.

$$

ANZ250-171200-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
701 PM EDT Tue Apr 16 2024

.TONIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and E 2 ft at
9 seconds.
.WED...N winds 5 to 10 kt, becoming E in the afternoon. Seas 2 to
3 ft. Wave Detail: SE 2 ft at 8 seconds and E 2 ft at 9 seconds.
.WED NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
2 ft at 8 seconds and N 1 ft at 4 seconds.
.THU...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft
at 4 seconds and SE 2 ft at 8 seconds.
.THU NIGHT AND FRI...SE winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: E 2 ft at 5 seconds and E 2 ft at
12 seconds.
.FRI NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 4 seconds and E 2 ft at
11 seconds. A chance of showers in the evening, then showers
likely after midnight.
.SAT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Showers likely.
.SAT NIGHT THROUGH SUN NIGHT...W 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.

$$

ANZ251-171200-
Massachusetts Bay and Ipswich Bay-
701 PM EDT Tue Apr 16 2024

.TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 9 seconds and E 2 ft at 9 seconds.
.WED...N winds 5 to 10 kt, becoming E in the afternoon. Seas
around 2 ft. Wave Detail: E 2 ft at 9 seconds and N 1 ft at
3 seconds.
.WED NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
E 2 ft at 3 seconds and E 2 ft at 9 seconds.
.THU...E winds 10 to 15 kt. Seas around 2 ft. Wave Detail: E 2 ft
at 4 seconds and E 2 ft at 8 seconds.
.THU NIGHT AND FRI...SE winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: SE 3 ft at 5 seconds and E 1 ft at
12 seconds.
.FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and SE 2 ft at
4 seconds. Showers likely.
.SAT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. Showers likely.
.SAT NIGHT THROUGH SUN NIGHT...W 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.

$$

ANZ231-171200-
Cape Cod Bay-
701 PM EDT Tue Apr 16 2024

.TONIGHT...SW winds 5 to 10 kt, becoming N after midnight. Seas
around 2 ft. Wave Detail: SE 2 ft at 9 seconds and N 1 ft at
3 seconds.
.WED...N winds 5 to 10 kt, becoming NE in the afternoon. Seas
around 2 ft in the morning, then 1 foot or less. Wave Detail: SE
2 ft at 8 seconds and N 1 ft at 3 seconds, becoming N 1 ft at
3 seconds and SE 1 ft at 8 seconds.
.WED NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: E 1 ft at 3 seconds and N 1 ft at 3 seconds.
.THU...E winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: E
1 ft at 3 seconds and SE 1 ft at 8 seconds.
.THU NIGHT AND FRI...SE 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 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft. Wave Detail: SE 1 ft at 3 seconds and S 1 ft at
4 seconds. A chance of showers in the evening, then showers
likely after midnight.
.SAT...SW winds around 10 kt with gusts up to 20 kt. Seas around
2 ft. Showers likely.
.SAT NIGHT THROUGH SUN NIGHT...W 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.

$$

ANZ254-171200-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
701 PM EDT Tue Apr 16 2024

.TONIGHT...SW winds 5 to 10 kt, becoming N after midnight. Seas
3 to 4 ft. Wave Detail: S 4 ft at 9 seconds and E 2 ft at
9 seconds.
.WED...NE winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft
at 8 seconds and N 1 ft at 3 seconds.
.WED NIGHT...SE winds around 5 kt. Seas 2 to 3 ft. Wave Detail:
SE 3 ft at 8 seconds and N 1 ft at 4 seconds.
.THU...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at
3 seconds and SE 2 ft at 7 seconds.
.THU NIGHT AND FRI...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: E 2 ft at 4 seconds and S 2 ft at 7 seconds.
.FRI NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. 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 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. A chance of showers.
.SAT NIGHT THROUGH SUN NIGHT...W 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.

$$

ANZ255-171200-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
701 PM EDT Tue Apr 16 2024

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

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

$$

ANZ256-171200-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
701 PM EDT Tue Apr 16 2024

.TONIGHT...W winds 10 to 15 kt, becoming NW after midnight. Seas
3 to 5 ft. Wave Detail: S 5 ft at 8 seconds and W 1 ft at
3 seconds.
.WED...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
2 to 4 ft. Wave Detail: S 4 ft at 8 seconds and E 1 ft at
9 seconds.
.WED NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail:
SE 3 ft at 8 seconds and SE 2 ft at 3 seconds. A chance of rain
after midnight with vsby 1 to 3 NM.
.THU...E winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: SE 4 ft at 5 seconds and SE 1 ft at
14 seconds. A chance of showers. Vsby 1 to 3 NM in the morning.
.THU NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 3 to 5 ft. Wave Detail: E 4 ft at 6 seconds and SE
1 ft at 12 seconds. A chance of showers in the evening.
.FRI...E winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 3 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and NE 1 ft at
3 seconds.
.FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 4 ft. A chance of showers in the evening, then showers
likely after midnight.
.SAT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. A chance of showers.
.SAT NIGHT THROUGH SUN NIGHT...W winds 10 to 15 kt with gusts up
to 20 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.

$$

ANZ232-171200-
Nantucket Sound-
701 PM EDT Tue Apr 16 2024

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

$$

ANZ233-171200-
Vineyard Sound-
701 PM EDT Tue Apr 16 2024

.TONIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas
2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and W 1 ft at
3 seconds.
.WED...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: S
2 ft at 8 seconds and N 1 ft at 2 seconds, becoming NE 1 ft at
2 seconds and S 1 ft at 7 seconds.
.WED NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: E 1 ft at 3 seconds and S 1 ft at 7 seconds. A chance of
rain after midnight.
.THU...E winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. Wave Detail: E 2 ft at 3 seconds and SE 2 ft at 6 seconds.
A chance of showers.
.THU NIGHT...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...SE winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas around 2 ft. Wave Detail: SE 2 ft at 7 seconds and E 1 ft at
2 seconds.
.FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft. A chance of showers in the evening, then showers
likely after midnight.
.SAT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. A chance of showers.
.SAT NIGHT THROUGH SUN NIGHT...W 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.

$$

ANZ234-171200-
Buzzards Bay-
701 PM EDT Tue Apr 16 2024

.TONIGHT...W winds 5 to 10 kt with gusts up to 20 kt, becoming N
after midnight. Seas around 2 ft. Wave Detail: S 2 ft at
8 seconds and N 1 ft at 2 seconds.
.WED...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: S
2 ft at 8 seconds and N 1 ft at 3 seconds, becoming N 1 ft at
3 seconds and S 1 ft at 7 seconds.
.WED NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: E 1 ft at 2 seconds and SW 1 ft at 2 seconds. A chance of
rain after midnight.
.THU...E winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. Wave Detail: E 2 ft at 3 seconds and S 1 ft at 7 seconds.
.THU NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Seas around 2 ft. Wave Detail: E 2 ft at 3 seconds and
SE 2 ft at 6 seconds.
.FRI...E winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft
at 7 seconds and E 1 ft at 2 seconds.
.FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft. A chance of showers in the evening, then showers
likely after midnight.
.SAT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. Showers likely.
.SAT NIGHT THROUGH SUN NIGHT...W 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.

$$

ANZ235-171200-
Rhode Island Sound-
701 PM EDT Tue Apr 16 2024

.TONIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas
2 to 4 ft. Wave Detail: S 4 ft at 8 seconds and W 1 ft at
3 seconds.
.WED...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and E 1 ft at
9 seconds.
.WED NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 8 seconds and SE 1 ft at 3 seconds. A chance of rain
after midnight.
.THU...E winds 15 to 20 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 5 seconds and SE 1 ft at 14 seconds. A chance of showers.
.THU NIGHT...E winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and E
2 ft at 4 seconds. A chance of showers in the evening.
.FRI...E winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and NE 1 ft at
3 seconds.
.FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. A chance of showers in the evening, then showers
likely after midnight.
.SAT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Showers likely.
.SAT NIGHT THROUGH SUN NIGHT...W 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.

$$

ANZ237-171200-
Block Island Sound-
701 PM EDT Tue Apr 16 2024

.TONIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas
2 to 3 ft. Wave Detail: S 3 ft at 9 seconds and W 1 ft at
3 seconds.
.WED...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and E 1 ft at
9 seconds.
.WED NIGHT...S winds 5 to 10 kt, becoming SE 10 to 15 kt after
midnight. Seas around 2 ft. Wave Detail: S 2 ft at 8 seconds and
SE 1 ft at 3 seconds. A chance of rain in the evening, then rain
likely after midnight with vsby 1 to 3 NM.
.THU...E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: E 3 ft at 4 seconds and SE 3 ft at 7 seconds.
A chance of showers.
.THU NIGHT...E winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: E
4 ft at 6 seconds and SE 1 ft at 13 seconds. A chance of showers
in the evening.
.FRI...E winds around 10 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and E 1 ft at
4 seconds.
.FRI NIGHT...SE winds around 10 kt, becoming S after midnight.
Seas 2 to 3 ft. A chance of showers in the evening, then showers
likely after midnight.
.SAT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. A chance of showers.
.SAT NIGHT THROUGH SUN NIGHT...W 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.

$$

ANZ230-171200-
Boston Harbor-
701 PM EDT Tue Apr 16 2024

.TONIGHT...NW winds 5 to 10 kt. Waves around 2 ft this evening,
then 1 foot or less.
.WED...N winds around 5 kt, becoming E in the afternoon. Waves
1 foot or less, then around 2 ft in the afternoon.
.WED NIGHT...SE winds 5 to 10 kt. Waves around 2 ft in the
evening, then 1 foot or less.
.THU...E winds 10 to 15 kt. Waves around 2 ft.
.THU NIGHT AND FRI...SE winds 15 to 20 kt. Waves around 2 ft.
.FRI NIGHT...S winds 15 to 20 kt, diminishing to around 10 kt
after midnight. Waves around 2 ft. Showers likely.
.SAT...W winds 10 to 15 kt with gusts up to 20 kt. Waves around
2 ft. Showers likely.
.SAT NIGHT THROUGH SUN NIGHT...W 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.

$$

ANZ236-171200-
Narragansett Bay-
701 PM EDT Tue Apr 16 2024

.TONIGHT...W winds 5 to 10 kt, becoming N after midnight. Waves
2 to 3 ft.
.WED...NE winds around 5 kt, becoming S in the afternoon. Waves
around 2 ft.
.WED NIGHT...SE winds 5 to 10 kt. Waves around 2 ft. A chance of
rain after midnight.
.THU...E winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to
3 ft. A chance of showers.
.THU NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Waves 2 to 3 ft. A chance of showers in the evening.
.FRI...E winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts up
to 20 kt in the afternoon. Waves around 2 ft.
.FRI NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Waves 2 to 3 ft. A chance of showers in the evening,
then showers likely after midnight.
.SAT...W winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to
3 ft. A chance of showers.
.SAT NIGHT THROUGH SUN NIGHT...W 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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