Coastal Waters Forecast
Issued by NWS Boston, MA

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FZUS51 KBOX 272003
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
403 PM EDT Thu Jun 27 2024

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

ANZ200-280900-
403 PM EDT Thu Jun 27 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
A cold front crosses the waters today into tonight. High pres builds
over the waters Fri, then moves offshore Sat. Another cold front
should cross the waters sometime late Sun into Sun night. This will
be followed by a ridge of high pressure early next week.

$$

ANZ250-280900-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
403 PM EDT Thu Jun 27 2024

.TONIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft. Wave Detail: NW 3 ft at 4 seconds and SE 2 ft at 8 seconds.
.FRI...NW winds 10 to 15 kt with gusts up to 20 kt, becoming SW
5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NW 3 ft
at 4 seconds and SE 2 ft at 9 seconds.
.FRI NIGHT...S winds 5 to 10 kt with gusts up to 20 kt. Seas
around 2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at
8 seconds.
.SAT...S winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SE
4 ft at 9 seconds and S 2 ft at 3 seconds.
.SAT NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 6 ft. Wave Detail: S 4 ft at 5 seconds. A chance of showers
in the evening, then showers after midnight.
.SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. Wave Detail: SE 4 ft at 7 seconds and SW 3 ft at 4 seconds.
Showers with a chance of tstms.
.SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
becoming NW after midnight. Seas 2 to 4 ft. Showers likely,
mainly in the evening.
.MON THROUGH TUE 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.

$$

ANZ251-280900-
Massachusetts Bay and Ipswich Bay-
403 PM EDT Thu Jun 27 2024

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

$$

ANZ231-280900-
Cape Cod Bay-
403 PM EDT Thu Jun 27 2024

.TONIGHT...W winds 10 to 15 kt, becoming N after midnight. Gusts
up to 25 kt. Seas around 2 ft. Wave Detail: NW 2 ft at 4 seconds
and SE 2 ft at 8 seconds.
.FRI...N winds 10 to 15 kt with gusts up to 20 kt, becoming NE
5 to 10 kt in the afternoon. Seas around 2 ft. Wave Detail: NW
2 ft at 4 seconds and NE 1 foot at 7 seconds.
.FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft in the evening,
then 1 foot or less. Wave Detail: N 1 foot at 5 seconds, becoming
SW 1 foot at 2 seconds and NE 1 foot at 5 seconds.
.SAT...S 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: S 1 foot at 2 seconds and NE
1 foot at 4 seconds, becoming SE 2 ft at 4 seconds.
.SAT NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 4 ft. Wave Detail: SE 3 ft at 6 seconds and S 2 ft at
3 seconds. Showers after midnight.
.SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft. Wave Detail: S 3 ft at 6 seconds and SW 2 ft at 3 seconds.
Showers. A chance of tstms in the afternoon.
.SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
becoming NW after midnight. Seas 2 to 3 ft. Showers likely in the
evening. A chance of showers after midnight.
.MON THROUGH TUE NIGHT...NW winds 5 to 10 kt with gusts up to
20 kt. Seas around 2 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.

$$

ANZ254-280900-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
403 PM EDT Thu Jun 27 2024

.TONIGHT...W winds 10 to 15 kt, becoming N after midnight. Gusts
up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at 7 seconds and
NW 3 ft at 4 seconds.
.FRI...N winds 10 to 15 kt with gusts up to 20 kt, diminishing to
5 to 10 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: N 3 ft
at 4 seconds and SE 3 ft at 7 seconds.
.FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NW
2 ft at 4 seconds and SE 2 ft at 8 seconds.
.SAT...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and S 2 ft at
4 seconds.
.SAT 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. A chance of showers
after midnight.
.SUN AND SUN NIGHT...W winds 15 to 20 kt with gusts up to 25 kt.
Seas 3 to 5 ft. Wave Detail: SW 5 ft at 5 seconds. Showers. A
chance of tstms through the night, then a chance of showers after
midnight.
.MON...N winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. A chance of showers.
.MON NIGHT THROUGH TUE NIGHT...NW winds 5 to 10 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.

$$

ANZ255-280900-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
403 PM EDT Thu Jun 27 2024

.TONIGHT...W winds 10 to 15 kt, becoming N 15 to 20 kt after
midnight. Gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft
at 7 seconds and NW 3 ft at 4 seconds.
.FRI...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: NW 3 ft
at 4 seconds and SE 3 ft at 7 seconds.
.FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
2 ft at 8 seconds and W 1 foot at 3 seconds.
.SAT...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and S 2 ft at
3 seconds.
.SAT NIGHT...S winds 15 to 20 kt, increasing to 20 to 25 kt after
midnight. Seas 3 to 5 ft. Wave Detail: S 5 ft at 5 seconds. A
chance of showers after midnight.
.SUN...SW winds 20 to 25 kt. Seas 4 to 6 ft. Wave Detail: SW 6 ft
at 5 seconds. Showers.
.SUN NIGHT...SW winds 15 to 20 kt, becoming W after midnight.
Gusts up to 25 kt. Seas 4 to 6 ft. Showers likely. A chance of
tstms in the evening.
.MON...N winds around 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. A chance of showers.
.MON NIGHT THROUGH TUE NIGHT...NW winds 10 to 15 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.

$$

ANZ256-280900-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
403 PM EDT Thu Jun 27 2024

.TONIGHT...W winds 10 to 15 kt, becoming N after midnight. Gusts
up to 20 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds and
NW 2 ft at 3 seconds.
.FRI...N winds 10 to 15 kt with gusts up to 20 kt, becoming SE
5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NE 3 ft
at 7 seconds and NW 2 ft at 3 seconds.
.FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
2 ft at 8 seconds and SW 1 foot at 2 seconds.
.SAT...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 4 ft. Wave Detail: SE 4 ft at 6 seconds and S 2 ft at
3 seconds.
.SAT NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 ft. Wave Detail: S 5 ft at 6 seconds. Showers after
midnight.
.SUN AND SUN NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt.
Seas 4 to 6 ft. Wave Detail: S 6 ft at 7 seconds and SW 1 foot at
4 seconds. Showers. A chance of tstms through the night, then a
chance of showers after midnight.
.MON...N winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers.
.MON NIGHT THROUGH TUE NIGHT...W winds 5 to 10 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.

$$

ANZ232-280900-
Nantucket Sound-
403 PM EDT Thu Jun 27 2024

.TONIGHT...W winds 10 to 15 kt, becoming N 15 to 20 kt after
midnight. Gusts up to 25 kt. Seas around 2 ft. Wave Detail: W
2 ft at 3 seconds and S 2 ft at 7 seconds.
.FRI...N winds 10 to 15 kt with gusts up to 20 kt, becoming NE
5 to 10 kt in the afternoon. Seas around 2 ft. Wave Detail: N
2 ft at 3 seconds and SE 1 foot at 7 seconds.
.FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
1 foot at 3 seconds and SE 1 foot at 6 seconds.
.SAT...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and SE 2 ft at
8 seconds.
.SAT NIGHT AND SUN...SW winds 20 to 25 kt. Seas 2 to 4 ft. Wave
Detail: S 3 ft at 5 seconds. Showers.
.SUN NIGHT...SW winds 15 to 20 kt, becoming W 10 to 15 kt after
midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft
at 4 seconds and S 2 ft at 7 seconds. Showers likely in the
evening. A chance of showers after midnight.
.MON...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. A chance of showers.
.MON NIGHT THROUGH TUE NIGHT...NW winds 10 to 15 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.

$$

ANZ233-280900-
Vineyard Sound-
403 PM EDT Thu Jun 27 2024

.TONIGHT...W winds around 10 kt, becoming N after midnight. Gusts
up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and
W 1 foot at 4 seconds.
.FRI...N winds 10 to 15 kt, becoming S 5 to 10 kt in the
afternoon. Seas around 2 ft. Wave Detail: N 1 foot at 3 seconds
and E 1 foot at 6 seconds.
.FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SW 1 foot at 3 seconds and S 1 foot at 6 seconds.
.SAT...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and S 1 foot
at 3 seconds.
.SAT NIGHT AND SUN...SW winds 20 to 25 kt. Seas 2 to 4 ft. Wave
Detail: S 4 ft at 5 seconds. Showers.
.SUN NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt,
becoming NW 10 to 15 kt after midnight. Seas 2 to 4 ft. Wave
Detail: SW 4 ft at 7 seconds and SW 2 ft at 4 seconds. Showers
likely in the evening. A chance of showers after midnight.
.MON...N winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers.
.MON NIGHT THROUGH TUE NIGHT...W winds 5 to 10 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.

$$

ANZ234-280900-
Buzzards Bay-
403 PM EDT Thu Jun 27 2024

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

$$

ANZ235-280900-
Rhode Island Sound-
403 PM EDT Thu Jun 27 2024

.TONIGHT...W winds 10 to 15 kt, becoming N after midnight. Gusts
up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and
NW 2 ft at 3 seconds.
.FRI...N winds 10 to 15 kt, becoming S 5 to 10 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 7 seconds and
N 2 ft at 3 seconds.
.FRI NIGHT...S winds around 10 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 7 seconds and SW 1 foot at 2 seconds.
.SAT...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds.
.SAT NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 ft. Wave Detail: S 5 ft at 6 seconds and S 1 foot at
3 seconds. A chance of showers in the evening, then showers after
midnight.
.SUN AND SUN NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt.
Seas 3 to 5 ft. Wave Detail: S 5 ft at 7 seconds and SW 1 foot at
4 seconds. Showers with a chance of tstms, then a chance of
showers after midnight.
.MON THROUGH TUE...NE winds 10 to 15 kt. Seas 2 to 4 ft.
.TUE NIGHT...SW winds 5 to 10 kt. Seas around 2 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.

$$

ANZ237-280900-
Block Island Sound-
403 PM EDT Thu Jun 27 2024

.TONIGHT...W winds around 10 kt, becoming N after midnight. Gusts
up to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and
W 1 foot at 3 seconds.
.FRI...N winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to
3 ft. Wave Detail: NE 3 ft at 6 seconds and NW 1 foot at
3 seconds.
.FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 7 seconds and SW 1 foot at 2 seconds.
.SAT...S 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
3 ft at 6 seconds and S 1 foot at 3 seconds.
.SAT NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 ft. Wave Detail: SE 4 ft at 6 seconds and S 1 foot at
3 seconds. A chance of showers in the evening, then showers after
midnight.
.SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
5 ft. Wave Detail: S 5 ft at 7 seconds and SW 2 ft at 4 seconds.
Showers with a chance of tstms.
.SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
becoming NW after midnight. Seas 3 to 5 ft. Showers likely in the
evening. A chance of showers after midnight.
.MON THROUGH TUE NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 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.

$$

ANZ230-280900-
Boston Harbor-
403 PM EDT Thu Jun 27 2024

.TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Waves
1 foot or less.
.FRI...NW winds 5 to 10 kt, becoming SE in the afternoon. Waves
1 foot or less.
.FRI NIGHT...S winds 5 to 10 kt. Waves 1 foot or less.
.SAT...S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 25 kt in the afternoon. Waves 1 foot or less, then around
2 ft in the afternoon.
.SAT NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Waves
around 2 ft. Showers.
.SUN AND SUN NIGHT...NW winds 15 to 20 kt with gusts up to 25 kt.
Waves around 2 ft. Showers with a chance of tstms.
.MON THROUGH TUE NIGHT...SW winds 5 to 10 kt. Waves 1 foot or
less.

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.

$$

ANZ236-280900-
Narragansett Bay-
403 PM EDT Thu Jun 27 2024

.TONIGHT...W winds around 10 kt, becoming N after midnight. Waves
around 2 ft.
.FRI...N winds 5 to 10 kt, becoming S in the afternoon. Waves
around 2 ft.
.FRI NIGHT...S winds 5 to 10 kt. Waves around 2 ft.
.SAT...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Waves 2 to 3 ft.
.SAT NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Waves
2 to 4 ft. A chance of showers in the evening, then showers after
midnight.
.SUN...SW winds 15 to 20 kt with gusts up to 25 kt. Waves 3 to
5 ft. Showers with a chance of tstms.
.SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
becoming NW after midnight. Waves 2 to 4 ft. Showers likely,
mainly in the evening.
.MON THROUGH TUE NIGHT...SW winds 5 to 10 kt. Waves 2 to 3 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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