027
FZUS51 KBOX 041706
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
106 PM EDT Fri Jul 4 2025

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

ANZ200-050600-
106 PM EDT Fri Jul 4 2025

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pres builds over the region today and Sat, then settles south
of the region Sun into next week. Low pres approaches middle of next
week.

$$

ANZ250-050600-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
106 PM EDT Fri Jul 4 2025

.THIS AFTERNOON...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: NW 2 ft at 3 seconds and S 2 ft at 7 seconds.
.TONIGHT...W winds around 10 kt. Seas 2 to 3 ft. Wave Detail: NW
2 ft at 3 seconds and SE 2 ft at 8 seconds.
.SAT...W winds 5 to 10 kt, becoming S in the afternoon. Seas
around 2 ft. Wave Detail: NW 2 ft at 3 seconds and SE 2 ft at
8 seconds.
.SAT NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and SE 2 ft at
8 seconds.
.SUN...SW winds 15 to 20 kt. Gusts up to 20 kt, increasing to
30 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: SW 4 ft at
4 seconds and SE 1 foot at 8 seconds.
.SUN NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas
3 to 5 ft. Wave Detail: SW 4 ft at 5 seconds and SE 1 foot at
8 seconds.
.MON...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
4 ft.
.MON NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas
2 to 4 ft. A chance of showers.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. A chance of showers and tstms.
.TUE NIGHT...SW winds around 10 kt with gusts up to 20 kt. Seas
2 to 3 ft. A chance of showers.

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.

$$

ANZ251-050600-
Massachusetts Bay and Ipswich Bay-
106 PM EDT Fri Jul 4 2025

.THIS AFTERNOON...NW winds around 10 kt. Seas around 2 ft. Wave
Detail: NW 1 foot at 3 seconds and S 1 foot at 6 seconds.
.TONIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NW
1 foot at 3 seconds and S 1 foot at 5 seconds.
.SAT...W winds 5 to 10 kt, becoming S in the afternoon. Seas
around 2 ft. Wave Detail: NW 1 foot at 3 seconds and S 1 foot at
6 seconds.
.SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft. Wave Detail: S 2 ft at 3 seconds and NW 1 foot at
3 seconds.
.SUN AND SUN NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 1 foot at
8 seconds.
.MON...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
3 ft. Wave Detail: SW 3 ft at 4 seconds and SE 1 foot at
8 seconds.
.MON NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
2 to 3 ft. A chance of showers.
.TUE AND TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt. Seas around 2 ft. A chance of showers
and tstms.

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.

$$

ANZ231-050600-
Cape Cod Bay-
106 PM EDT Fri Jul 4 2025

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

$$

ANZ254-050600-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
106 PM EDT Fri Jul 4 2025

.THIS AFTERNOON...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: S 3 ft at 8 seconds and NW 1 foot at 3 seconds.
.TONIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas
2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SE 2 ft at
8 seconds.
.SAT...W winds 5 to 10 kt, becoming SW in the afternoon. Seas
2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and SE 2 ft at
8 seconds.
.SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and SE 2 ft at
8 seconds.
.SUN AND SUN NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt.
Seas 3 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and SE 1 foot
at 8 seconds.
.MON...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft. Wave Detail: SW 4 ft at 5 seconds and SE 1 foot at
9 seconds.
.MON NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 4 ft. A chance of showers.
.TUE AND TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 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.

$$

ANZ255-050600-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
106 PM EDT Fri Jul 4 2025

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

$$

ANZ256-050600-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
106 PM EDT Fri Jul 4 2025

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

$$

ANZ232-050600-
Nantucket Sound-
106 PM EDT Fri Jul 4 2025

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

$$

ANZ233-050600-
Vineyard Sound-
106 PM EDT Fri Jul 4 2025

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

$$

ANZ234-050600-
Buzzards Bay-
106 PM EDT Fri Jul 4 2025

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

$$

ANZ235-050600-
Rhode Island Sound-
106 PM EDT Fri Jul 4 2025

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

$$

ANZ237-050600-
Block Island Sound-
106 PM EDT Fri Jul 4 2025

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

$$

ANZ230-050600-
Boston Harbor-
106 PM EDT Fri Jul 4 2025

.THIS AFTERNOON...NW winds around 10 kt. Waves around 2 ft.
.TONIGHT...NW winds 5 to 10 kt. Waves around 2 ft in the evening,
then 1 foot or less.
.SAT...W winds around 5 kt, becoming S in the afternoon. Waves
1 foot or less.
.SAT NIGHT...SW winds 10 to 15 kt. Waves around 2 ft.
.SUN AND SUN NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt.
Waves around 2 ft.
.MON...SW winds 15 to 20 kt with gusts up to 25 kt. Waves around
2 ft.
.MON NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Waves
around 2 ft. A chance of showers.
.TUE AND TUE NIGHT...SW winds 5 to 10 kt. Waves around 2 ft. A
chance of showers and tstms.

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.

$$

ANZ236-050600-
Narragansett Bay-
106 PM EDT Fri Jul 4 2025

.THIS AFTERNOON...W winds around 10 kt. Waves around 2 ft.
.TONIGHT...NW winds 5 to 10 kt. Waves around 2 ft.
.SAT...W winds around 5 kt, becoming SW in the afternoon. Waves
around 2 ft.
.SAT NIGHT...SW winds 10 to 15 kt. Waves around 2 ft.
.SUN AND SUN NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt.
Waves 2 to 3 ft.
.MON...SW winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to
3 ft.
.MON NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves
2 to 3 ft. A chance of showers.
.TUE AND TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt. Waves around 2 ft. A chance of showers
and tstms.

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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