367
FZUS51 KBOX 250503
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
103 AM EDT Sat May 25 2024

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

ANZ200-251800-
103 AM EDT Sat May 25 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pressure provides tranquil boating weather through Saturday. A
few showers are possible Sunday, however the risk for active weather
begins Monday, with increasing south winds. Then Monday night and
Tuesday morning, a frontal system approaches MA and RI, with the
risk for showers and thunderstorms, along with gusty southwest
winds. Improving weather may briefly follow later Tuesday behind the
front, but active weather may return sometime the middle of next
week, as low pressure may develop as it approaches New England.

$$

ANZ250-251800-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
103 AM EDT Sat May 25 2024

.REST OF TONIGHT...N winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: NW 2 ft at 4 seconds and E 1 foot at 9 seconds.
.SAT...NW winds around 5 kt, becoming S in the afternoon. Seas
around 2 ft. Wave Detail: NW 1 foot at 3 seconds and E 1 foot at
8 seconds.
.SAT NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 3 seconds and E 1 foot at 7 seconds.
.SUN...S winds around 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 4 seconds and SE 1 foot at 9 seconds.
.SUN NIGHT AND MON...SE winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: SE 2 ft at 3 seconds and SE 1 foot
at 9 seconds.
.MON NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 ft. Wave Detail: SE 3 ft at 5 seconds. A chance of showers
in the evening, then showers likely after midnight.
.TUE...S winds around 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Showers likely.
.TUE NIGHT AND WED...SW winds 10 to 15 kt. Gusts up to 20 kt.
Seas 3 to 5 ft.
.WED NIGHT...S winds around 10 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.

$$

ANZ251-251800-
Massachusetts Bay and Ipswich Bay-
103 AM EDT Sat May 25 2024

.REST OF TONIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: NW 1 foot at 3 seconds and E 1 foot at 9 seconds.
.SAT...N winds around 5 kt, becoming SE in the afternoon. Seas
1 foot or less, then around 2 ft in the afternoon. Wave Detail:
NW 1 foot at 3 seconds and E 1 foot at 7 seconds, becoming S
1 foot at 2 seconds and E 1 foot at 7 seconds.
.SAT NIGHT...S winds around 10 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 3 seconds and E 1 foot at 7 seconds.
.SUN...S winds 5 to 10 kt, becoming SE in the afternoon. Seas
1 foot or less. Wave Detail: S 1 foot at 3 seconds and E 1 foot
at 9 seconds.
.SUN NIGHT AND MON...SE winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: SE 2 ft at 4 seconds and E 1 foot at
8 seconds.
.MON NIGHT...S winds around 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
8 seconds. Showers likely.
.TUE...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Showers likely.
.TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. A chance of showers.
.WED...S winds around 10 kt. Seas 2 to 3 ft.
.WED NIGHT...SW winds around 10 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.

$$

ANZ231-251800-
Cape Cod Bay-
103 AM EDT Sat May 25 2024

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

$$

ANZ254-251800-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
103 AM EDT Sat May 25 2024

.REST OF TONIGHT...N winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: NW 2 ft at 4 seconds and SE 1 foot at 9 seconds.
.SAT...N winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: NW 2 ft at 5 seconds and E 1 foot at
8 seconds.
.SAT NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 5 seconds and SE 1 foot at 8 seconds.
.SUN...S winds around 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 4 seconds and SE 1 foot at 8 seconds.
.SUN NIGHT AND MON...SE winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and SE 1 foot at
8 seconds.
.MON NIGHT...SE winds 10 to 15 kt, becoming S 15 to 20 kt after
midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SE 4 ft
at 6 seconds. Showers likely after midnight.
.TUE...S winds 15 to 20 kt. Seas 4 to 5 ft. A chance of showers.
.TUE NIGHT THROUGH WED NIGHT...SW winds 10 to 15 kt with gusts up
to 20 kt. Seas 3 to 5 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.

$$

ANZ255-251800-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
103 AM EDT Sat May 25 2024

.REST OF TONIGHT...NW winds around 10 kt. Seas around 2 ft. Wave
Detail: SW 2 ft at 5 seconds and SE 1 foot at 9 seconds. Patchy
fog. Vsby 1 NM or less.
.SAT...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: SW 2 ft at 6 seconds and E 1 foot at
8 seconds.
.SAT NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 6 seconds and SE 1 foot at 9 seconds.
.SUN...S winds around 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 5 seconds and SE 1 foot at 9 seconds.
.SUN NIGHT AND MON...SE winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: SE 3 ft at 4 seconds and SE 1 foot
at 9 seconds.
.MON NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 ft. Wave Detail: S 5 ft at 5 seconds and SE 1 foot at
8 seconds. A chance of showers in the evening, then showers
likely after midnight.
.TUE...SW winds 15 to 20 kt. Seas 4 to 5 ft. A chance of showers.
.TUE NIGHT THROUGH WED NIGHT...SW winds 10 to 15 kt with gusts up
to 20 kt. Seas 3 to 5 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.

$$

ANZ256-251800-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
103 AM EDT Sat May 25 2024

.REST OF TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SW 2 ft at 5 seconds and SE 1 foot at 9 seconds. Patchy
fog. Vsby 1 NM or less.
.SAT...NE winds 5 to 10 kt, becoming S in the afternoon. Seas
around 2 ft. Wave Detail: S 2 ft at 6 seconds and SE 1 foot at
9 seconds.
.SAT NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 6 seconds and SE 1 foot at 9 seconds.
.SUN...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft
at 5 seconds and SE 1 foot at 9 seconds.
.SUN NIGHT AND MON...SE winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and SE 1 foot at
9 seconds.
.MON NIGHT...S winds 15 to 20 kt. Seas 3 to 5 ft. Wave Detail: SE
4 ft at 5 seconds and SE 1 foot at 8 seconds. A chance of showers
in the evening. Showers likely after midnight.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to
5 ft. Showers likely.
.TUE NIGHT THROUGH WED NIGHT...SW winds 10 to 15 kt with gusts up
to 20 kt. Seas 3 to 5 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.

$$

ANZ232-251800-
Nantucket Sound-
103 AM EDT Sat May 25 2024

.REST OF TONIGHT...N winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: W 1 foot at 4 seconds and E 1 foot at 8 seconds.
.SAT...N winds 5 to 10 kt, becoming SE in the afternoon. Seas
1 foot or less. Wave Detail: S 1 foot at 4 seconds and NE 1 foot
at 7 seconds.
.SAT NIGHT...S winds around 10 kt. Seas 1 foot or less. Wave
Detail: S 1 foot at 3 seconds and SE 1 foot at 7 seconds.
.SUN...SW winds around 10 kt. Seas 1 foot or less. Wave Detail:
SW 1 foot at 3 seconds and SE 1 foot at 8 seconds.
.SUN NIGHT AND MON...SE winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: SE 2 ft at 3 seconds and SE 1 foot
at 9 seconds.
.MON NIGHT...S winds 15 to 20 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 4 seconds and SE 1 foot at 9 seconds. A chance of showers
in the evening, then showers likely after midnight.
.TUE...SW winds 15 to 20 kt. Seas 2 to 3 ft. A chance of showers.
.TUE NIGHT THROUGH WED NIGHT...SW 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.

$$

ANZ233-251800-
Vineyard Sound-
103 AM EDT Sat May 25 2024

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

$$

ANZ234-251800-
Buzzards Bay-
103 AM EDT Sat May 25 2024

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

$$

ANZ235-251800-
Rhode Island Sound-
103 AM EDT Sat May 25 2024

.REST OF TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SW 2 ft at 5 seconds and SE 1 foot at 9 seconds.
.SAT...NE winds around 5 kt, becoming S in the afternoon. Seas
around 2 ft. Wave Detail: S 2 ft at 6 seconds and SE 1 foot at
9 seconds.
.SAT NIGHT...S winds around 10 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 6 seconds and SE 1 foot at 9 seconds.
.SUN...SW winds around 10 kt. Seas around 2 ft in the morning,
then 1 foot or less. Wave Detail: S 2 ft at 5 seconds and SE
1 foot at 9 seconds, becoming S 1 foot at 4 seconds and SE 1 foot
at 9 seconds.
.SUN NIGHT AND MON...SE winds 10 to 15 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 4 seconds and SE 1 foot at 9 seconds.
.MON NIGHT...S winds 15 to 20 kt. Seas 2 to 4 ft. Wave Detail: S
4 ft at 7 seconds. Showers likely.
.TUE...SW winds around 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Showers likely.
.TUE NIGHT AND WED...SW winds 10 to 15 kt. Gusts up to 20 kt.
Seas 3 to 4 ft.
.WED NIGHT...SW winds 10 to 15 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.

$$

ANZ237-251800-
Block Island Sound-
103 AM EDT Sat May 25 2024

.REST OF TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SW 1 foot at 5 seconds and SE 1 foot at 8 seconds.
.SAT...NE winds around 5 kt, becoming S in the afternoon. Seas
1 foot or less, then around 2 ft in the afternoon. Wave Detail: S
1 foot at 6 seconds and SE 1 foot at 9 seconds, becoming S 2 ft
at 6 seconds and SE 1 foot at 9 seconds.
.SAT NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 5 seconds and SE 1 foot at 9 seconds.
.SUN...SW winds 5 to 10 kt. Seas around 2 ft in the morning, then
1 foot or less. Wave Detail: SW 1 foot at 5 seconds and SE 1 foot
at 9 seconds, becoming S 1 foot at 4 seconds and SE 1 foot at
9 seconds.
.SUN NIGHT AND MON...SE winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: SE 2 ft at 3 seconds and SE 1 foot
at 9 seconds.
.MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. Wave Detail: S 3 ft at 5 seconds and SE 2 ft at
8 seconds. Showers likely. Vsby 1 to 3 NM after midnight.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Showers likely.
.TUE NIGHT AND WED...SW winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt. Seas 3 to 4 ft.
.WED NIGHT...SW winds 5 to 10 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.

$$

ANZ230-251800-
Boston Harbor-
103 AM EDT Sat May 25 2024

.REST OF TONIGHT...NW winds 5 to 10 kt. Waves 1 foot or less.
.SAT...N winds around 5 kt, becoming SE in the afternoon. Waves
1 foot or less.
.SAT NIGHT...S winds 5 to 10 kt. Waves 1 foot or less.
.SUN...SW winds 5 to 10 kt, becoming SE in the afternoon. Waves
1 foot or less. A chance of showers in the afternoon.
.SUN NIGHT...SE winds 5 to 10 kt. Waves 1 foot or less.
.MON...SE winds 5 to 10 kt, increasing to 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 afternoon.
.MON NIGHT...S winds around 15 kt with gusts up to 20 kt. Waves
around 2 ft. Showers likely.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around
2 ft. Showers likely.
.TUE NIGHT THROUGH WED NIGHT...SW winds 10 to 15 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.

$$

ANZ236-251800-
Narragansett Bay-
103 AM EDT Sat May 25 2024

.REST OF TONIGHT...N winds 5 to 10 kt. Waves 1 foot or less.
.SAT...NE winds around 5 kt, becoming S in the afternoon. Waves
1 foot or less.
.SAT NIGHT...S winds 5 to 10 kt. Waves 1 foot or less.
.SUN...S winds 5 to 10 kt. Waves 1 foot or less.
.SUN NIGHT AND MON...SE winds 10 to 15 kt. Waves around 2 ft.
.MON NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Waves
2 to 4 ft. Showers likely.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to
4 ft. Showers likely.
.TUE NIGHT AND WED...SW winds 10 to 15 kt, diminishing to 5 to
10 kt. Waves 2 to 4 ft.
.WED NIGHT...SW winds 5 to 10 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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