000
FZUS51 KBOX 222006
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
405 PM EDT Mon Apr 22 2024

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

ANZ200-230900-
405 PM EDT Mon Apr 22 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pres continues to dominate weather conditions through tomorrow.
A cold front will cross the region on Wed, bringing a round of
showers and thunderstorms. High pres builds back in Thu, and remains
in place through Sat.

$$

ANZ250-230900-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
405 PM EDT Mon Apr 22 2024

.TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N
2 ft at 5 seconds and SE 1 ft at 7 seconds.
.TUE...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 25 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 9 seconds and S 2 ft at 3 seconds.
.TUE NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 5 seconds and SE 3 ft at
10 seconds.
.WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: SE 5 ft at 10 seconds and S 2 ft at 3 seconds.
Showers likely.
.WED NIGHT...NW winds 20 to 25 kt, becoming N 15 to 20 kt after
midnight. Gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: N 5 ft
at 6 seconds and E 5 ft at 9 seconds.
.THU...N winds 10 to 15 kt with gusts up to 20 kt, becoming NE in
the afternoon. Seas 4 to 6 ft. Wave Detail: NW 4 ft at 6 seconds
and E 3 ft at 9 seconds.
.THU NIGHT...S winds around 10 kt, becoming SW after midnight.
Seas 2 to 4 ft.
.FRI THROUGH SAT...S winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 3 ft.
.SAT 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.

$$

ANZ251-230900-
Massachusetts Bay and Ipswich Bay-
405 PM EDT Mon Apr 22 2024

.TONIGHT...S winds 5 to 10 kt. Seas around 2 ft this evening,
then 1 foot or less. Wave Detail: W 1 ft at 3 seconds and E 1 ft
at 5 seconds, becoming S 1 ft at 3 seconds and NE 1 ft at
4 seconds.
.TUE...S winds 5 to 10 kt, becoming SE 15 to 20 kt with gusts up
to 25 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 2 ft
at 3 seconds and SE 2 ft at 7 seconds.
.TUE 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 S 1 ft at
3 seconds.
.WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: SE 4 ft at 8 seconds and S 2 ft at 3 seconds.
Showers likely.
.WED NIGHT...NW winds 20 to 25 kt. Seas 3 to 5 ft. Wave Detail: N
4 ft at 5 seconds and E 4 ft at 9 seconds.
.THU AND THU NIGHT...SW winds 15 to 20 kt. Seas 2 to 4 ft. Wave
Detail: NW 3 ft at 4 seconds and NE 3 ft at 7 seconds.
.FRI THROUGH SAT...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft.
.SAT 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.

$$

ANZ231-230900-
Cape Cod Bay-
405 PM EDT Mon Apr 22 2024

.TONIGHT...SE winds 5 to 10 kt, becoming SW after midnight. Seas
1 foot or less. Wave Detail: N 1 ft at 4 seconds and SE 1 ft at
7 seconds.
.TUE...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW
1 ft at 3 seconds and N 1 ft at 4 seconds.
.TUE NIGHT...S winds 5 to 10 kt. Seas 1 foot or less, then around
2 ft after midnight. Wave Detail: SE 1 ft at 3 seconds and SE
1 ft at 7 seconds, becoming SE 2 ft at 8 seconds and S 1 ft at
2 seconds.
.WED...SW winds around 10 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: E 3 ft at 10 seconds and E 2 ft at 7 seconds.
Showers likely.
.WED NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 ft. Wave Detail: N 3 ft at 5 seconds and E 3 ft at
9 seconds.
.THU...N winds 10 to 15 kt with gusts up to 20 kt, becoming NE
5 to 10 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: N 3 ft
at 6 seconds and E 2 ft at 9 seconds.
.THU NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas
around 2 ft.
.FRI THROUGH SAT 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.

$$

ANZ254-230900-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
405 PM EDT Mon Apr 22 2024

.TONIGHT...SE winds around 5 kt, becoming S after midnight. Seas
2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and S 2 ft at
8 seconds.
.TUE...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 8 seconds and E 2 ft at 10 seconds.
.TUE NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas
2 to 4 ft. Wave Detail: E 4 ft at 9 seconds and E 1 ft at
4 seconds.
.WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: E 5 ft at 10 seconds and SW 2 ft at 4 seconds.
A chance of showers.
.WED NIGHT AND THU...N winds 15 to 20 kt with gusts up to 25 kt.
Seas 5 to 7 ft. Wave Detail: E 6 ft at 9 seconds and N 4 ft at
6 seconds.
.THU NIGHT...SE winds 5 to 10 kt, becoming SW after midnight.
Seas 2 to 4 ft. Wave Detail: NE 3 ft at 7 seconds and E 2 ft at
8 seconds.
.FRI THROUGH SAT NIGHT...S 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.

$$

ANZ255-230900-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
405 PM EDT Mon Apr 22 2024

.TONIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 8 seconds and SE 2 ft at 10 seconds.
.TUE...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft
at 8 seconds and E 2 ft at 9 seconds.
.TUE NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas
2 to 4 ft. Wave Detail: SE 4 ft at 9 seconds and E 1 ft at
3 seconds.
.WED...SW winds 15 to 20 kt. Seas 3 to 5 ft. Wave Detail: SE 5 ft
at 9 seconds and SW 3 ft at 4 seconds. A chance of showers.
.WED NIGHT AND THU...NE winds 20 to 25 kt. Seas 4 to 6 ft. Wave
Detail: E 5 ft at 9 seconds and N 4 ft at 5 seconds.
.THU NIGHT...SE winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: E
2 ft at 4 seconds and SW 2 ft at 7 seconds.
.FRI THROUGH SAT NIGHT...S 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.

$$

ANZ256-230900-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
405 PM EDT Mon Apr 22 2024

.TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 8 seconds and SE 2 ft at 10 seconds.
.TUE...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft
at 8 seconds and SE 2 ft at 10 seconds.
.TUE NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: SE
3 ft at 9 seconds and SE 1 ft at 3 seconds.
.WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: SE 5 ft at 10 seconds and SW 3 ft at
5 seconds. A chance of showers.
.WED NIGHT...NW winds 15 to 20 kt, becoming N after midnight.
Gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: SE 5 ft at
10 seconds and N 4 ft at 4 seconds.
.THU...N winds 15 to 20 kt, becoming E 5 to 10 kt in the
afternoon. Seas 3 to 5 ft. Wave Detail: N 3 ft at 4 seconds and
SW 3 ft at 7 seconds.
.THU NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI THROUGH SAT NIGHT...S 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.

$$

ANZ232-230900-
Nantucket Sound-
405 PM EDT Mon Apr 22 2024

.TONIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas
around 2 ft this evening, then 1 foot or less. Wave Detail: NE
1 ft at 3 seconds and W 1 ft at 3 seconds, becoming NE 1 ft at
3 seconds and SW 1 ft at 3 seconds.
.TUE...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW
1 ft at 3 seconds and NE 1 ft at 4 seconds.
.TUE NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E
2 ft at 10 seconds and SE 1 ft at 3 seconds.
.WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at
10 seconds. Showers likely, mainly in the morning.
.WED NIGHT...NW winds 15 to 20 kt, becoming N after midnight.
Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: N 3 ft at
5 seconds and S 2 ft at 7 seconds.
.THU AND THU NIGHT...SW winds 15 to 20 kt. Seas 2 to 3 ft. Wave
Detail: N 3 ft at 4 seconds and E 2 ft at 9 seconds.
.FRI THROUGH SAT 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.

$$

ANZ233-230900-
Vineyard Sound-
405 PM EDT Mon Apr 22 2024

.TONIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail:
SW 1 ft at 3 seconds and NE 1 ft at 4 seconds.
.TUE...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SE
1 ft at 3 seconds and SW 1 ft at 3 seconds.
.TUE NIGHT...S winds 5 to 10 kt. Seas 1 foot or less, then around
2 ft after midnight. Wave Detail: S 1 ft at 3 seconds and S 1 ft
at 8 seconds, becoming SE 2 ft at 9 seconds and E 1 ft at
3 seconds.
.WED...SW 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
11 seconds. Showers likely, mainly in the morning.
.WED NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 3 ft. Wave Detail: N 2 ft at 5 seconds and SW 2 ft at
6 seconds.
.THU AND THU NIGHT...SW winds 15 to 20 kt. Seas around 2 ft. Wave
Detail: N 2 ft at 4 seconds and SW 2 ft at 7 seconds.
.FRI THROUGH SAT 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.

$$

ANZ234-230900-
Buzzards Bay-
405 PM EDT Mon Apr 22 2024

.TONIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail:
SW 1 ft at 3 seconds and NE 1 ft at 4 seconds.
.TUE...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: SW
1 ft at 3 seconds and S 1 ft at 8 seconds.
.TUE NIGHT...S winds 5 to 10 kt. Seas 1 foot or less, then around
2 ft after midnight. Wave Detail: S 1 ft at 3 seconds and S 1 ft
at 8 seconds, becoming SE 2 ft at 9 seconds and SW 1 ft at
3 seconds.
.WED...SW 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
11 seconds. Showers likely, mainly in the morning.
.WED NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 3 ft. Wave Detail: NW 2 ft at 5 seconds and SW 2 ft at
7 seconds.
.THU AND THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: N 2 ft at 4 seconds and SW 2 ft at
7 seconds.
.FRI THROUGH SAT 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.

$$

ANZ235-230900-
Rhode Island Sound-
405 PM EDT Mon Apr 22 2024

.TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW
2 ft at 3 seconds and S 2 ft at 8 seconds.
.TUE...S winds around 5 kt, increasing to around 10 kt in the
afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 8 seconds and
S 1 ft at 3 seconds.
.TUE NIGHT...S winds around 10 kt. Seas 2 to 3 ft. Wave Detail:
SE 2 ft at 9 seconds and S 1 ft at 3 seconds.
.WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: SE 4 ft at 11 seconds and S 3 ft at 5 seconds.
Showers likely, mainly in the morning.
.WED NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 4 ft. Wave Detail: SE 4 ft at 10 seconds and NW 3 ft at
5 seconds.
.THU AND THU NIGHT...SW winds 15 to 20 kt. Seas 2 to 3 ft. Wave
Detail: N 3 ft at 4 seconds and S 3 ft at 7 seconds.
.FRI THROUGH SAT NIGHT...S 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.

$$

ANZ237-230900-
Block Island Sound-
405 PM EDT Mon Apr 22 2024

.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 8 seconds and NE 1 ft at 2 seconds.
.TUE...S winds around 5 kt, increasing to around 10 kt in the
afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 8 seconds and
S 1 ft at 3 seconds.
.TUE NIGHT...S winds around 10 kt. Seas 2 to 3 ft. Wave Detail:
SE 2 ft at 9 seconds and SE 1 ft at 3 seconds.
.WED...SW winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 2 to 4 ft. Wave Detail: SE 4 ft at 11 seconds and S 2 ft at
3 seconds. Showers likely, mainly in the morning.
.WED NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. Wave Detail: SE 4 ft at 10 seconds and S 3 ft at
7 seconds.
.THU AND THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and N 2 ft at
4 seconds.
.FRI THROUGH SAT...S winds 5 to 10 kt. Seas around 2 ft.
.SAT NIGHT...S winds 10 to 15 kt with gusts up to 20 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.

$$

ANZ230-230900-
Boston Harbor-
405 PM EDT Mon Apr 22 2024

.TONIGHT...SE winds 5 to 10 kt, becoming S after midnight. Waves
1 foot or less.
.TUE...S 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.
.TUE 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.
.WED...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Waves around 2 ft. Showers likely.
.WED NIGHT...NW winds 20 to 25 kt with gusts up to 30 kt. Waves
around 2 ft.
.THU AND THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft.
.FRI THROUGH SAT...S winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft.
.SAT 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.

$$

ANZ236-230900-
Narragansett Bay-
405 PM EDT Mon Apr 22 2024

.TONIGHT...S winds 5 to 10 kt. Waves 1 foot or less.
.TUE...S winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Waves 1 foot or less.
.TUE NIGHT...S winds 5 to 10 kt. Waves 1 foot or less, then
around 2 ft after midnight.
.WED...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to
3 ft. Showers likely.
.WED NIGHT...NW winds 15 to 20 kt, becoming N 10 to 15 kt after
midnight. Waves 2 to 3 ft.
.THU AND THU NIGHT...SW winds 10 to 15 kt. Waves 2 to 3 ft.
.FRI THROUGH SAT...S winds 5 to 10 kt with gusts up to 20 kt.
Waves around 2 ft.
.SAT NIGHT...S winds 10 to 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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