000
FZUS51 KBOX 200501
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
101 AM EDT Sat Apr 20 2024

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

ANZ200-201800-
101 AM EDT Sat Apr 20 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pres over the waters south of Nova Scotia continues to
move eastward tonight. A cold front then brings showers and a period
of breezy conditions for Sat. High pres then returns for Sun and
Mon, though with W to NW breezes.

$$

ANZ250-201800-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
101 AM EDT Sat Apr 20 2024

.REST OF TONIGHT...S winds around 10 kt with gusts up to 20 kt.
Seas 3 to 4 ft. Wave Detail: S 3 ft at 4 seconds and E 1 ft at
4 seconds. A chance of showers.
.SAT...SW winds 5 to 10 kt. Gusts up to 20 kt in the morning.
Seas 2 to 4 ft. Wave Detail: S 3 ft at 4 seconds and E 1 ft at
4 seconds. Patchy fog. Showers, mainly in the morning. Vsby 1 NM
or less.
.SAT NIGHT...W winds 10 to 15 kt, becoming NW 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. Patchy fog in the evening
with vsby 1 NM or less.
.SUN...W winds around 10 kt, becoming SW in the afternoon. Gusts
up to 20 kt. Seas 2 to 4 ft. Wave Detail: W 3 ft at 4 seconds and
SE 2 ft at 6 seconds.
.SUN NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at
7 seconds.
.MON AND MON NIGHT...N winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft.
.TUE AND TUE NIGHT...S winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft.
.WED AND WED NIGHT...S winds around 15 kt, becoming SW. Gusts up
to 30 kt. Seas 3 to 5 ft. A chance of rain.

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.

$$

ANZ251-201800-
Massachusetts Bay and Ipswich Bay-
101 AM EDT Sat Apr 20 2024

.REST OF TONIGHT...S winds 5 to 10 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and E 2 ft at
4 seconds. A chance of showers.
.SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft
at 4 seconds and E 1 ft at 5 seconds. Patchy fog. Showers in the
morning. Vsby 1 to 3 NM.
.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...W winds around 10 kt. Gusts up to 20 kt in the afternoon.
Seas around 2 ft. Wave Detail: W 2 ft at 3 seconds and SE 1 ft at
6 seconds.
.SUN NIGHT...W winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. Seas around 2 ft. Wave Detail: W 2 ft at 3 seconds and
SE 1 ft at 6 seconds.
.MON AND MON NIGHT...NW winds 15 to 20 kt. Seas around 2 ft.
.TUE AND TUE NIGHT...S winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 3 ft.
.WED AND WED NIGHT...S winds around 15 kt, becoming W. Gusts up
to 25 kt. Seas 2 to 4 ft. A chance of rain.

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.

$$

ANZ231-201800-
Cape Cod Bay-
101 AM EDT Sat Apr 20 2024

.REST OF TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: S 1 ft at 3 seconds and E 1 ft at 4 seconds. Patchy fog.
A chance of showers. Vsby 1 to 3 NM.
.SAT...SW winds around 5 kt. Seas around 2 ft. Wave Detail: S
2 ft at 4 seconds and E 1 ft at 4 seconds. Patchy fog. Showers.
Vsby 1 NM or less.
.SAT NIGHT...W winds 5 to 10 kt, becoming NW after midnight.
Gusts up to 20 kt. Seas around 2 ft. Wave Detail: W 2 ft at
3 seconds and SE 1 ft at 6 seconds.
.SUN...W winds 5 to 10 kt, becoming SW with gusts up to 20 kt in
the afternoon. Seas around 2 ft. Wave Detail: NW 2 ft at
4 seconds and SE 1 ft at 6 seconds.
.SUN NIGHT...SW winds around 10 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft. Wave Detail: SW 1 ft at 3 seconds and
SE 1 ft at 6 seconds.
.MON AND MON NIGHT...N winds 10 to 15 kt. Seas around 2 ft.
.TUE AND TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft.
.WED...S winds around 15 kt with gusts up to 25 kt. Seas around
2 ft. A chance of rain.
.WED NIGHT...W winds around 15 kt with gusts up to 25 kt. Seas
2 to 4 ft. A chance of rain.

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.

$$

ANZ254-201800-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
101 AM EDT Sat Apr 20 2024

.REST OF TONIGHT...SE winds 5 to 10 kt. Seas 3 to 4 ft. Wave
Detail: SE 4 ft at 6 seconds and E 1 ft at 11 seconds. Patchy
fog. A chance of showers.
.SAT...S winds 5 to 10 kt, becoming W in the afternoon. Seas 2 to
4 ft. Wave Detail: S 3 ft at 4 seconds and E 2 ft at 11 seconds.
Patchy fog. Showers. Vsby 1 NM or less.
.SAT NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: NW 3 ft at
4 seconds and SE 3 ft at 6 seconds. Patchy fog in the evening
with vsby 1 NM or less.
.SUN...NW winds 5 to 10 kt, becoming SW with gusts up to 20 kt in
the afternoon. Seas 3 to 4 ft. Wave Detail: NW 3 ft at 4 seconds
and SE 2 ft at 6 seconds.
.SUN NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 4 ft. Wave Detail: S 2 ft at 5 seconds and E
1 ft at 11 seconds.
.MON AND MON NIGHT...E winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft.
.TUE THROUGH WED...S winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 4 ft.
.WED NIGHT...SW winds around 15 kt with gusts up to 25 kt. Seas
4 to 5 ft. A chance of rain.

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.

$$

ANZ255-201800-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
101 AM EDT Sat Apr 20 2024

.REST OF TONIGHT...SE winds 5 to 10 kt. Seas 3 to 4 ft. Wave
Detail: SE 4 ft at 6 seconds and E 1 ft at 11 seconds. Patchy
fog. A chance of showers. Vsby 1 to 3 NM.
.SAT...S winds 5 to 10 kt, becoming W in the afternoon. Seas 2 to
4 ft. Wave Detail: SE 4 ft at 6 seconds and W 2 ft at 4 seconds.
Patchy fog. A chance of showers in the morning. Showers likely in
the afternoon. Vsby 1 NM or less.
.SAT NIGHT...W winds 5 to 10 kt, becoming NW after midnight.
Gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: W 3 ft at
5 seconds and SE 3 ft at 7 seconds. Patchy fog in the evening
with vsby 1 NM or less.
.SUN...NW winds around 10 kt, becoming W in the afternoon. Gusts
up to 20 kt. Seas 2 to 4 ft. Wave Detail: W 3 ft at 5 seconds and
SE 2 ft at 6 seconds.
.SUN NIGHT AND MON...W winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Wave Detail: W 3 ft at 5 seconds and SE 2 ft at
7 seconds.
.MON NIGHT...S winds 5 to 10 kt, becoming E after midnight. Seas
around 2 ft.
.TUE THROUGH WED...S winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 4 ft.
.WED NIGHT...W winds around 15 kt with gusts up to 25 kt. Seas
3 to 5 ft. A chance of rain.

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.

$$

ANZ256-201800-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
101 AM EDT Sat Apr 20 2024

.REST OF TONIGHT...S winds around 5 kt. Seas around 4 ft. Wave
Detail: SE 4 ft at 7 seconds and E 1 ft at 11 seconds. Patchy
fog. A chance of showers. Vsby 1 to 3 NM.
.SAT...SW winds 5 to 10 kt, becoming W in the afternoon. Seas
3 to 4 ft. Wave Detail: SE 3 ft at 7 seconds and W 2 ft at
4 seconds. Patchy fog. Showers likely. Vsby 1 NM or less.
.SAT NIGHT...W winds around 10 kt, becoming NW after midnight.
Gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at
4 seconds and SE 3 ft at 7 seconds. Patchy fog in the evening
with vsby 1 NM or less.
.SUN...NW winds around 10 kt, becoming W with gusts up to 20 kt
in the afternoon. Seas 2 to 4 ft. Wave Detail: NW 3 ft at
4 seconds and SE 2 ft at 7 seconds.
.SUN NIGHT AND MON...W winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Wave Detail: W 3 ft at 4 seconds and SE 2 ft at
7 seconds.
.MON NIGHT...W winds around 10 kt, becoming N after midnight.
Seas around 2 ft.
.TUE AND TUE NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft.
.WED AND WED NIGHT...S winds around 15 kt, becoming W. Gusts up
to 25 kt. Seas 3 to 5 ft. A chance of rain.

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.

$$

ANZ232-201800-
Nantucket Sound-
101 AM EDT Sat Apr 20 2024

.REST OF TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 4 seconds and E 1 ft at 4 seconds. Patchy fog.
A chance of showers. Vsby 1 to 3 NM.
.SAT...S winds 5 to 10 kt, becoming W in the afternoon. Seas
around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 ft at
5 seconds. Patchy fog. Showers. Vsby 1 NM or less.
.SAT NIGHT...W winds 5 to 10 kt, becoming NW with gusts up to
20 kt after midnight. Seas around 2 ft. Wave Detail: W 2 ft at
4 seconds and SE 1 ft at 6 seconds. Patchy fog in the evening
with vsby 1 to 3 NM.
.SUN...NW winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: W 2 ft at
3 seconds and SE 1 ft at 6 seconds.
.SUN NIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt after
midnight. Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and SE
1 ft at 6 seconds.
.MON AND MON NIGHT...N winds 10 to 15 kt. Seas 1 foot or less.
.TUE THROUGH WED...S winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 3 ft.
.WED NIGHT...W winds around 15 kt with gusts up to 25 kt. Seas
2 to 3 ft. A chance of rain.

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.

$$

ANZ233-201800-
Vineyard Sound-
101 AM EDT Sat Apr 20 2024

.REST OF TONIGHT...S winds around 5 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 5 seconds and S 1 ft at 3 seconds. Patchy fog.
A chance of showers. Vsby 1 to 3 NM.
.SAT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 4 seconds and SE 2 ft at 6 seconds. Patchy fog. Showers.
Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon.
.SAT NIGHT...W winds 5 to 10 kt, becoming NW after midnight.
Gusts up to 20 kt. Seas around 2 ft. Wave Detail: W 2 ft at
4 seconds and S 2 ft at 7 seconds. Patchy fog in the evening.
.SUN...NW winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: W 2 ft at
4 seconds and S 1 ft at 7 seconds.
.SUN NIGHT AND MON...W winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Wave Detail: SW 2 ft at 4 seconds and S 1 ft at
7 seconds.
.MON NIGHT...SW winds around 10 kt, becoming N after midnight.
Seas 1 foot or less.
.TUE AND TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 1 foot or less, then around 2 ft.
.WED AND WED NIGHT...S winds around 15 kt, becoming W. Gusts up
to 25 kt. Seas 2 to 4 ft. A chance of rain.

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.

$$

ANZ234-201800-
Buzzards Bay-
101 AM EDT Sat Apr 20 2024

.REST OF TONIGHT...S winds around 5 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 4 seconds and E 1 ft at 4 seconds. Patchy fog.
A chance of showers. Vsby 1 to 3 NM.
.SAT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 3 seconds and SE 2 ft at 6 seconds. Patchy fog. Showers.
Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon.
.SAT NIGHT...W winds 5 to 10 kt, becoming NW after midnight.
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 5 to 10 kt, becoming SW 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: W 2 ft at
4 seconds and SE 1 ft at 6 seconds.
.SUN NIGHT AND MON...W winds 15 to 20 kt. Seas 2 to 4 ft. Wave
Detail: SW 2 ft at 4 seconds and SE 1 ft at 7 seconds.
.MON NIGHT...SW winds around 10 kt, becoming N after midnight.
Seas 1 foot or less.
.TUE AND TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 1 foot or less, then around 2 ft.
.WED AND WED NIGHT...S winds around 15 kt, becoming W. Gusts up
to 25 kt. Seas 2 to 4 ft. A chance of rain.

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.

$$

ANZ235-201800-
Rhode Island Sound-
101 AM EDT Sat Apr 20 2024

.REST OF TONIGHT...S winds around 5 kt. Seas 2 to 3 ft. Wave
Detail: SE 3 ft at 7 seconds and SE 1 ft at 14 seconds. Patchy
fog. A chance of showers. Vsby 1 to 3 NM.
.SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 7 seconds and SW 2 ft at 4 seconds. Patchy fog. Showers. Vsby
1 NM or less.
.SAT NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: W 3 ft at 4 seconds and SE 2 ft at 7 seconds.
.SUN...NW winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: W 2 ft at
4 seconds and SE 2 ft at 7 seconds.
.SUN NIGHT AND MON...W winds 15 to 20 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.
.MON NIGHT...W winds around 10 kt, becoming N after midnight.
Seas around 2 ft.
.TUE AND TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft.
.WED AND WED NIGHT...S winds around 15 kt, becoming W. Gusts up
to 25 kt. Seas 2 to 4 ft. A chance of rain.

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.

$$

ANZ237-201800-
Block Island Sound-
101 AM EDT Sat Apr 20 2024

.REST OF TONIGHT...S winds around 5 kt. Seas 2 to 3 ft. Wave
Detail: SE 3 ft at 7 seconds and E 1 ft at 4 seconds. Patchy fog.
A chance of showers. Vsby 1 to 3 NM.
.SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 7 seconds and W 2 ft at 3 seconds. Patchy fog. Showers likely
in the morning. A chance of showers in the afternoon. Vsby 1 NM
or less.
.SAT NIGHT...W winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: W 2 ft at 4 seconds and SE 2 ft at 7 seconds.
.SUN...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: W 2 ft at
3 seconds and SE 2 ft at 7 seconds.
.SUN NIGHT AND MON...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: W 2 ft at 4 seconds and SE 2 ft at
7 seconds.
.MON NIGHT...W winds around 10 kt, becoming N after midnight.
Seas around 2 ft in the evening, then 1 foot or less.
.TUE AND TUE NIGHT...SE winds 5 to 10 kt, becoming S 10 to 15 kt.
Gusts up to 20 kt. Seas 2 to 3 ft.
.WED AND WED NIGHT...S winds around 15 kt, becoming W. Gusts up
to 25 kt. Seas 2 to 4 ft. A chance of rain.

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.

$$

ANZ230-201800-
Boston Harbor-
101 AM EDT Sat Apr 20 2024

.REST OF TONIGHT...S winds 5 to 10 kt. Waves 1 foot or less. A
chance of showers.
.SAT...SW winds 5 to 10 kt. Waves 1 foot or less. Patchy fog.
Showers, mainly in the morning. Vsby 1 to 3 NM.
.SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Waves
around 2 ft.
.SUN...W winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Waves around 2 ft.
.SUN NIGHT...W winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. Waves around 2 ft.
.MON AND MON NIGHT...W winds 15 to 20 kt. Waves around 2 ft.
.TUE AND TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft.
.WED AND WED NIGHT...S winds around 15 kt, becoming W. Gusts up
to 25 kt. Waves around 2 ft. A chance of rain.

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.

$$

ANZ236-201800-
Narragansett Bay-
101 AM EDT Sat Apr 20 2024

.REST OF TONIGHT...S winds around 5 kt. Waves around 2 ft. Patchy
fog. A chance of showers. Vsby 1 to 3 NM.
.SAT...SW winds 5 to 10 kt. Waves around 2 ft. Patchy fog.
Showers, mainly in the morning. Vsby 1 NM or less, increasing to
1 to 3 NM in the afternoon.
.SAT NIGHT...W winds 10 to 15 kt, becoming NW 5 to 10 kt after
midnight. Gusts up to 20 kt. Waves around 2 ft.
.SUN...NW winds 5 to 10 kt, becoming W 10 to 15 kt with gusts up
to 20 kt in the afternoon. Waves 2 to 3 ft.
.SUN NIGHT AND MON...W winds 10 to 15 kt with gusts up to 20 kt.
Waves 2 to 3 ft.
.MON NIGHT...W winds around 10 kt, becoming NW after midnight.
Waves 1 foot or less.
.TUE AND TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft.
.WED AND WED NIGHT...S winds 10 to 15 kt, becoming W. Gusts up to
25 kt. Waves 2 to 3 ft. A chance of rain.

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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