323
FZUS51 KBOX 251103
CWFBOX

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

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

ANZ200-260000-
703 AM EDT Sat May 25 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pres provides tranquil boating weather today. A few showers are
possible Sunday, however the risk for active weather begins Monday
with increasing southerly winds as a frontal system approaches. This
will bring showers and thunderstorms, especially late on Monday into
early Tuesday. Improving weather may briefly follow Tuesday behind
the front, but active weather returns for mid to late in the week.

$$

ANZ250-260000-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
703 AM EDT Sat May 25 2024

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

$$

ANZ251-260000-
Massachusetts Bay and Ipswich Bay-
703 AM EDT Sat May 25 2024

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

$$

ANZ231-260000-
Cape Cod Bay-
703 AM EDT Sat May 25 2024

.TODAY...N winds around 5 kt, becoming SE this afternoon. Seas
1 foot or less. Wave Detail: NW 1 foot at 3 seconds and E 1 foot
at 8 seconds.
.TONIGHT...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 5 seconds.
.SUN NIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: S 1 foot at 2 seconds and SE 1 foot at 8 seconds.
.MON...SE winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 1 foot or less, then around 2 ft in the
afternoon. Wave Detail: SE 1 foot at 2 seconds and SE 1 foot at
8 seconds, becoming SE 1 foot at 3 seconds and SE 1 foot at
8 seconds.
.MON NIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 3 ft. Wave Detail: SE 2 ft at 3 seconds and E 1 foot at
7 seconds. A chance of showers in the evening, then showers after
midnight.
.TUE...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. 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.

$$

ANZ254-260000-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
703 AM EDT Sat May 25 2024

.TODAY...N winds 5 to 10 kt, becoming SE this afternoon. Seas
around 2 ft. Wave Detail: NW 2 ft at 5 seconds and E 1 foot at
9 seconds.
.TONIGHT...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...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 4 seconds and SE 1 foot at 8 seconds.
.MON...SE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE
2 ft at 4 seconds and SE 1 foot at 9 seconds.
.MON NIGHT...SE winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 ft. Wave Detail: SE 5 ft at 5 seconds and SE 1 foot at
8 seconds. A chance of showers in the evening, then showers after
midnight.
.TUE...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. 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.

$$

ANZ255-260000-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
703 AM EDT Sat May 25 2024

.TODAY...NE winds 5 to 10 kt, becoming SE this afternoon. Seas
around 2 ft. Wave Detail: SW 2 ft at 5 seconds and E 1 foot at
8 seconds.
.TONIGHT...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...S winds around 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 5 seconds and SE 1 foot at 9 seconds. Patchy fog in the
morning with vsby 1 to 3 NM.
.SUN NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 4 seconds and SE 1 foot at 9 seconds.
.MON...SE winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft. Wave Detail: SE 2 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 after
midnight.
.TUE...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
5 ft. 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.

$$

ANZ256-260000-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
703 AM EDT Sat May 25 2024

.TODAY...NE winds 5 to 10 kt, becoming S this afternoon. Seas
around 2 ft. Wave Detail: SW 2 ft at 6 seconds and SE 1 foot at
9 seconds.
.TONIGHT...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...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. Patchy fog in the
morning.
.SUN NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 4 seconds and SE 1 foot at 9 seconds.
.MON...SE winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SE 2 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. Showers. A chance of tstms after midnight.
.TUE...SW winds 15 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 4 to 5 ft.

Winds and seas higher in and near tstms.

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.

$$

ANZ232-260000-
Nantucket Sound-
703 AM EDT Sat May 25 2024

.TODAY...N winds 5 to 10 kt, becoming SE this afternoon. Seas
1 foot or less. Wave Detail: W 1 foot at 4 seconds and NE 1 foot
at 7 seconds.
.TONIGHT...S winds around 10 kt. Seas 1 foot or less. Wave
Detail: S 1 foot at 3 seconds and SE 1 foot at 8 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. Patchy fog in
the morning.
.SUN NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: S 1 foot at 3 seconds and SE 1 foot at 9 seconds.
.MON...SE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. Seas 1 foot or less, then around
2 ft in the afternoon. Wave Detail: SE 1 foot at 3 seconds and SE
1 foot at 9 seconds, becoming SE 2 ft at 3 seconds and SE 1 foot
at 8 seconds.
.MON NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 4 ft. Wave Detail: SE 3 ft at 4 seconds and SE 1 foot at
8 seconds. A chance of showers in the evening, then showers after
midnight.
.TUE...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft. 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.

$$

ANZ233-260000-
Vineyard Sound-
703 AM EDT Sat May 25 2024

.TODAY...NE winds around 5 kt, becoming S this afternoon. Seas
1 foot or less. Wave Detail: SW 1 foot at 5 seconds and E 1 foot
at 8 seconds.
.TONIGHT...S winds 5 to 10 kt. Seas 1 foot or less. Wave Detail:
S 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 4 seconds and SE 1 foot at 8 seconds. Patchy fog in the
morning.
.SUN NIGHT...S winds 5 to 10 kt, becoming SE after midnight. Seas
1 foot or less. Wave Detail: S 1 foot at 4 seconds and SE 1 foot
at 9 seconds.
.MON...SE winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 1 foot or less, then around 2 ft in the
afternoon. Wave Detail: SE 1 foot at 3 seconds and S 1 foot at
9 seconds, becoming SE 1 foot at 3 seconds and S 1 foot at
8 seconds.
.MON NIGHT...SE winds 10 to 15 kt, becoming S 15 to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and S
1 foot at 8 seconds. Showers.
.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 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.

$$

ANZ234-260000-
Buzzards Bay-
703 AM EDT Sat May 25 2024

.TODAY...NE winds around 5 kt, becoming S this afternoon. Seas
1 foot or less. Wave Detail: SW 1 foot at 4 seconds and E 1 foot
at 8 seconds.
.TONIGHT...S 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...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. Patchy fog in the
morning.
.SUN NIGHT...S winds 5 to 10 kt, becoming SE after midnight. Seas
1 foot or less. Wave Detail: S 1 foot at 4 seconds and SE 1 foot
at 9 seconds.
.MON...SE winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 1 foot or less, then around 2 ft in the
afternoon. Wave Detail: SE 1 foot at 3 seconds and SE 1 foot at
9 seconds, becoming SE 1 foot at 3 seconds and SE 1 foot at
8 seconds.
.MON NIGHT...SE winds 10 to 15 kt, becoming S 15 to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and SE
1 foot at 8 seconds. Showers.
.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.

$$

ANZ235-260000-
Rhode Island Sound-
703 AM EDT Sat May 25 2024

.TODAY...NE winds around 5 kt, becoming S this afternoon. Seas
around 2 ft. Wave Detail: S 2 ft at 6 seconds and SE 1 foot at
9 seconds.
.TONIGHT...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. Patchy fog in the morning.
.SUN NIGHT...S winds 5 to 10 kt, becoming SE after midnight. Seas
1 foot or less. Wave Detail: S 1 foot at 4 seconds and SE 1 foot
at 9 seconds.
.MON...SE winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 4 seconds and
SE 1 foot at 9 seconds. A chance of showers in the afternoon.
.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: S 5 ft
at 5 seconds and S 1 foot at 8 seconds. Showers. A chance of
tstms after midnight.
.TUE...SW winds around 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.

Winds and seas higher in and near tstms.

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.

$$

ANZ237-260000-
Block Island Sound-
703 AM EDT Sat May 25 2024

.TODAY...NE winds around 5 kt, becoming S this afternoon. Seas
1 foot or less, then around 2 ft this 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.
.TONIGHT...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: S 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. Patchy fog in the morning.
.SUN NIGHT...S winds 5 to 10 kt, becoming SE after midnight. Seas
1 foot or less. Wave Detail: S 1 foot at 4 seconds and SE 1 foot
at 9 seconds.
.MON...E winds 5 to 10 kt, becoming SE 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 4 seconds and
SE 1 foot at 9 seconds. A chance of showers in the afternoon.
.MON NIGHT...SE winds 10 to 15 kt, becoming S 15 to 20 kt after
midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft
at 5 seconds and SE 1 foot at 8 seconds. Showers. A chance of
tstms after midnight.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Showers likely.
.TUE NIGHT THROUGH WED NIGHT...W winds 10 to 15 kt with gusts up
to 20 kt. Seas 2 to 4 ft.

Winds and seas higher in and near tstms.

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.

$$

ANZ230-260000-
Boston Harbor-
703 AM EDT Sat May 25 2024

.TODAY...N winds around 5 kt, becoming SE this afternoon. Waves
1 foot or less.
.TONIGHT...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...E winds 5 to 10 kt. Waves 1 foot or less.
.MON...E winds 5 to 10 kt, becoming SE 10 to 15 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...SE winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Waves around 2 ft. Showers. A chance of tstms after
midnight.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around
2 ft. Showers likely.
.TUE NIGHT AND WED...SW winds 5 to 10 kt. Waves around 2 ft.
.WED NIGHT...W winds around 10 kt. Waves around 2 ft. A chance of
showers.

Winds and waves higher in and near tstms.

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.

$$

ANZ236-260000-
Narragansett Bay-
703 AM EDT Sat May 25 2024

.TODAY...NE winds around 5 kt, becoming S this afternoon. Waves
1 foot or less.
.TONIGHT...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...S winds 5 to 10 kt, becoming SE after midnight.
Waves 1 foot or less.
.MON...SE winds 5 to 10 kt. Waves around 2 ft. A chance of
showers in the afternoon.
.MON NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Waves 2 to 4 ft. Showers. A chance of tstms after
midnight.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to
4 ft. Showers likely.
.TUE NIGHT THROUGH WED NIGHT...W winds 10 to 15 kt. Waves 2 to
4 ft.

Winds and waves higher in and near tstms.

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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