000
FZUS51 KBOX 182002
CWFBOX

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

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

ANZ200-190900-
401 PM EDT Thu Apr 18 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
Ridge of high pressure builds across the region tonight and Friday.
A cold front moves through late Friday and early Saturday. High
pressure ridge will develop Saturday to our south and remain there
into early next week.

$$

ANZ250-190900-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
401 PM EDT Thu Apr 18 2024

.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. A slight chance of
showers.
.FRI...SE winds 5 to 10 kt. 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. Patchy fog after midnight. Showers likely after
midnight with vsby 1 to 3 NM.
.SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 4 seconds and E 1 ft at 4 seconds. Showers likely, mainly in
the morning. Patchy fog in the morning with vsby 1 to 3 NM.
.SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. Wave Detail: W 3 ft at 4 seconds and SE 2 ft at
5 seconds.
.SUN AND SUN NIGHT...W winds 10 to 15 kt with 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.
.MON THROUGH TUE...S winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 4 ft.
.TUE NIGHT...S winds around 15 kt with gusts up to 25 kt. Seas
3 to 5 ft. 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.

$$

ANZ251-190900-
Massachusetts Bay and Ipswich Bay-
401 PM EDT Thu Apr 18 2024

.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. A slight chance of
showers.
.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 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. Patchy fog after midnight. A chance of showers
after midnight with vsby 1 to 3 NM.
.SAT...SW winds around 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 4 seconds and E 1 ft at 5 seconds. Patchy fog in the
morning. A chance of showers in the morning with vsby 1 to 3 NM.
.SAT NIGHT...W winds 15 to 20 kt. Seas around 2 ft. Wave Detail:
W 2 ft at 3 seconds and SE 1 ft at 5 seconds.
.SUN AND SUN 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
6 seconds.
.MON THROUGH TUE...S winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 3 ft.
.TUE NIGHT...S winds around 15 kt with gusts up to 25 kt. Seas
2 to 4 ft. 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.

$$

ANZ231-190900-
Cape Cod Bay-
401 PM EDT Thu Apr 18 2024

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

$$

ANZ254-190900-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
401 PM EDT Thu Apr 18 2024

.TONIGHT...E winds 10 to 15 kt. Gusts up to 20 kt this evening.
Seas 3 to 4 ft. Wave Detail: E 2 ft at 4 seconds and S 2 ft at
7 seconds. A slight chance of showers after midnight.
.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 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE
4 ft at 5 seconds and E 2 ft at 11 seconds. Patchy fog after
midnight. A chance of showers after midnight with vsby 1 to 3 NM.
.SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 4 seconds and E 2 ft at 11 seconds. Showers likely, mainly in
the morning. Patchy fog in the morning with vsby 1 to 3 NM.
.SAT NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 4 ft. Wave Detail: NW 3 ft at 4 seconds and
SE 3 ft at 6 seconds. A chance of showers in the evening.
.SUN AND SUN 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 2 ft at
6 seconds.
.MON THROUGH TUE NIGHT...S 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.

$$

ANZ255-190900-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
401 PM EDT Thu Apr 18 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING...

.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. A slight chance of showers after midnight.
.FRI...E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: SE 4 ft at 7 seconds and E 1 ft at 4 seconds.
.FRI NIGHT...SE winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Seas 3 to 5 ft. Wave Detail: SE 4 ft at 7 seconds
and E 1 ft at 4 seconds. Patchy fog after midnight. A chance of
showers after midnight with vsby 1 to 3 NM.
.SAT...SW 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. A chance of showers. Patchy fog in the morning with
vsby 1 to 3 NM.
.SAT NIGHT...W winds 10 to 15 kt, becoming NW 15 to 20 kt after
midnight. Seas 2 to 4 ft. Wave Detail: W 3 ft at 5 seconds and SE
3 ft at 7 seconds. A chance of showers in the evening.
.SUN AND SUN NIGHT...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
6 seconds.
.MON THROUGH TUE NIGHT...S 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.

$$

ANZ256-190900-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
401 PM EDT Thu Apr 18 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING...

.TONIGHT...NE winds 15 to 20 kt, becoming E 10 to 15 kt after
midnight. 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. A slight chance of
showers.
.FRI...E winds 10 to 15 kt. Gusts up to 20 kt in the morning.
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 5 ft. Wave Detail: SE 4 ft at 7 seconds and E
1 ft at 11 seconds. Patchy fog after midnight. Showers likely
after midnight with vsby 1 to 3 NM.
.SAT...SW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft
at 7 seconds and W 2 ft at 4 seconds. Showers likely, mainly in
the morning. Patchy fog in the morning with vsby 1 to 3 NM.
.SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas
around 3 ft. Wave Detail: W 3 ft at 4 seconds and SE 3 ft at
7 seconds.
.SUN AND SUN NIGHT...W winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Wave Detail: NW 3 ft at 4 seconds and SE 2 ft at
7 seconds.
.MON THROUGH TUE...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft.
.TUE NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 4 ft. 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.

$$

ANZ232-190900-
Nantucket Sound-
401 PM EDT Thu Apr 18 2024

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

.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. A
slight chance of showers after midnight.
.FRI...E winds 10 to 15 kt. Seas 2 to 3 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 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E
2 ft at 4 seconds. Patchy fog after midnight. A chance of showers
after midnight with 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 E 1 ft at 5 seconds. Showers likely, mainly
in the morning. Patchy fog in the morning with vsby 1 to 3 NM.
.SAT NIGHT...W winds 10 to 15 kt. Seas around 2 ft. Wave Detail:
W 2 ft at 4 seconds and SE 1 ft at 6 seconds. A chance of showers
in the evening.
.SUN AND SUN NIGHT...W winds 15 to 20 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.
.MON THROUGH TUE NIGHT...S 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.

$$

ANZ233-190900-
Vineyard Sound-
401 PM EDT Thu Apr 18 2024

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

.TONIGHT...E winds 10 to 15 kt. Gusts up to 20 kt this evening.
Seas 2 to 3 ft. Wave Detail: E 2 ft at 3 seconds and SE 2 ft at
6 seconds. A slight chance of showers after midnight.
.FRI...E winds around 10 kt. Seas 2 to 3 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 6 seconds and S 1 ft at 3 seconds. Patchy fog after
midnight. Showers likely after midnight with vsby 1 to 3 NM.
.SAT...SW winds 5 to 10 kt. 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. Showers likely, mainly in the morning. Patchy fog in
the morning with 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 4 seconds and S 2 ft at
7 seconds.
.SUN AND SUN NIGHT...W winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Wave Detail: W 2 ft at 4 seconds and S 1 ft at
7 seconds.
.MON THROUGH TUE...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 1 foot or less.
.TUE NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 4 ft. 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.

$$

ANZ234-190900-
Buzzards Bay-
401 PM EDT Thu Apr 18 2024

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

.TONIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt this evening.
Seas around 2 ft. Wave Detail: E 2 ft at 3 seconds and SE 2 ft at
6 seconds. A slight chance of showers.
.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. Patchy fog after
midnight. Showers likely after midnight with vsby 1 to 3 NM.
.SAT...SW winds 5 to 10 kt. 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 3 seconds and SE 1 ft at
6 seconds. Showers likely, mainly in the morning. Patchy fog in
the morning with vsby 1 to 3 NM.
.SAT NIGHT...W winds 10 to 15 kt. Seas around 2 ft. Wave Detail:
SW 2 ft at 5 seconds and E 1 ft at 5 seconds.
.SUN AND SUN NIGHT...W winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Wave Detail: W 2 ft at 4 seconds and SE 1 ft at
6 seconds.
.MON THROUGH TUE...S winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft.
.TUE NIGHT...S winds around 15 kt with gusts up to 20 kt. Seas
around 2 ft. 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.

$$

ANZ235-190900-
Rhode Island Sound-
401 PM EDT Thu Apr 18 2024

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

.TONIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt this evening.
Seas 3 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and E 2 ft at
4 seconds. A slight chance of showers.
.FRI...E winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 3 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 2 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and E
1 ft at 3 seconds. Patchy fog after midnight. Showers likely
after midnight with vsby 1 to 3 NM.
.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. Showers likely, mainly in the morning.
Patchy fog in the morning with vsby 1 to 3 NM.
.SAT NIGHT...W winds 10 to 15 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 AND SUN NIGHT...W winds 20 to 25 kt. Seas 2 to 3 ft. Wave
Detail: W 2 ft at 4 seconds and SE 2 ft at 7 seconds.
.MON THROUGH TUE...S winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft.
.TUE NIGHT...S winds around 15 kt with gusts up to 25 kt. Seas
2 to 4 ft. 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.

$$

ANZ237-190900-
Block Island Sound-
401 PM EDT Thu Apr 18 2024

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

.TONIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt this evening.
Seas 3 to 4 ft. Wave Detail: E 4 ft at 6 seconds and SE 1 ft at
13 seconds. A chance of showers this evening.
.FRI...E winds around 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft
at 7 seconds and E 1 ft at 4 seconds.
.FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: SE
3 ft at 7 seconds and E 1 ft at 4 seconds. Patchy fog after
midnight. Showers likely after midnight with 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 in the morning.
Showers likely in the morning with vsby 1 to 3 NM.
.SAT NIGHT...NW winds around 10 kt. Seas 2 to 3 ft. Wave Detail:
W 2 ft at 4 seconds and SE 2 ft at 7 seconds.
.SUN AND SUN NIGHT...W winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and SE 2 ft at
7 seconds.
.MON THROUGH TUE...SE winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft.
.TUE NIGHT...S winds around 15 kt with gusts up to 25 kt. Seas
2 to 3 ft. 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.

$$

ANZ230-190900-
Boston Harbor-
401 PM EDT Thu Apr 18 2024

.TONIGHT...E winds 5 to 10 kt. Waves 1 foot or less. A chance of
showers this evening. A slight chance of showers after midnight.
.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 around 2 ft
in the afternoon.
.FRI NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Waves around 2 ft in the evening, then 1 foot or less. A
chance of showers after midnight with vsby 1 to 3 NM.
.SAT...SW winds 10 to 15 kt. Waves 1 foot or less, then around
2 ft in the afternoon. Patchy fog in the morning. A chance of
showers in the morning with vsby 1 to 3 NM.
.SAT NIGHT THROUGH SUN NIGHT...W winds 15 to 20 kt with gusts up
to 25 kt. Waves around 2 ft.
.MON THROUGH TUE...S winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft.
.TUE NIGHT...S winds around 15 kt with gusts up to 20 kt. Waves
around 2 ft. 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.

$$

ANZ236-190900-
Narragansett Bay-
401 PM EDT Thu Apr 18 2024

.TONIGHT...NE winds 5 to 10 kt. Gusts up to 20 kt this evening.
Waves 2 to 3 ft. A chance of showers this evening. A slight
chance of showers after midnight.
.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 around 2 ft. Patchy fog
after midnight. Showers likely after midnight with vsby 1 to
3 NM.
.SAT...SW winds 5 to 10 kt, becoming W 10 to 15 kt in the
afternoon. Waves around 2 ft. Patchy fog in the morning. Showers
likely in the morning with vsby 1 to 3 NM.
.SAT NIGHT...W winds 10 to 15 kt. Waves around 2 ft.
.SUN AND SUN NIGHT...W winds 10 to 15 kt with gusts up to 25 kt.
Waves 2 to 3 ft.
.MON THROUGH TUE...S winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft.
.TUE NIGHT...S winds around 15 kt with gusts up to 20 kt. Waves
2 to 3 ft. 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.

$$

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