926
FZUS51 KBOX 031706
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
106 PM EDT Thu Jul 3 2025

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

ANZ200-040600-
106 PM EDT Thu Jul 3 2025

.Synopsis for Massachusetts and Rhode Island coastal waters...
Another cold front moves through late today into early Fri with
potential for a few showers and storms over the waters. High pres
into this weekend into next week.

$$

ANZ250-040600-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
106 PM EDT Thu Jul 3 2025

.THIS AFTERNOON...S winds around 10 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 9 seconds and SW 1 foot at 4 seconds. A chance
of showers and tstms. Some tstms may be severe with damaging
winds, small hail, frequent lightning, and heavy rainfall.
.TONIGHT...W winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SW
2 ft at 4 seconds and SE 2 ft at 8 seconds. A chance of showers
and tstms in the evening. Some tstms may produce damaging winds,
small hail, frequent lightning, and heavy rainfall in the
evening.
.FRI...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.
.FRI NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
2 ft at 8 seconds and NW 1 foot at 3 seconds.
.SAT AND 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 4 seconds and SE 2 ft at
7 seconds.
.SUN...SW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to
4 ft. Wave Detail: SW 4 ft at 4 seconds and SE 1 foot at
8 seconds.
.SUN NIGHT THROUGH MON NIGHT...SW winds 15 to 20 kt with gusts up
to 30 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.

$$

ANZ251-040600-
Massachusetts Bay and Ipswich Bay-
106 PM EDT Thu Jul 3 2025

.THIS AFTERNOON...S winds around 10 kt. Seas around 2 ft. Wave
Detail: E 2 ft at 8 seconds and W 1 foot at 2 seconds. A chance
of showers and tstms. Some tstms may be severe with damaging
winds, small hail, frequent lightning, and heavy rainfall.
.TONIGHT...W winds around 10 kt. Seas around 2 ft. Wave Detail: W
1 foot at 2 seconds and S 1 foot at 3 seconds. A chance of
showers and tstms in the evening. Some tstms may produce damaging
winds, small hail, frequent lightning, and heavy rainfall in the
evening.
.FRI...NW winds around 10 kt. Seas around 2 ft. Wave Detail: NW
1 foot at 3 seconds and S 1 foot at 6 seconds.
.FRI NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
NW 1 foot at 3 seconds and S 1 foot at 4 seconds.
.SAT...W winds 5 to 10 kt, becoming S 10 to 15 kt in the
afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 4 seconds and
E 2 ft at 7 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 THROUGH MON NIGHT...SW winds 15 to 20 kt with gusts up to
25 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.

$$

ANZ231-040600-
Cape Cod Bay-
106 PM EDT Thu Jul 3 2025

.THIS AFTERNOON...SW winds 5 to 10 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: SW 1 foot at 3 seconds and E
1 foot at 8 seconds. A slight chance of showers and tstms. Some
tstms may be severe with damaging winds, small hail, frequent
lightning, and heavy rainfall.
.TONIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 7 seconds and W 1 foot at 3 seconds. A chance of showers
and tstms in the evening. Some tstms may produce damaging winds,
small hail, frequent lightning, and heavy rainfall in the
evening.
.FRI...NW winds around 10 kt, becoming NE in the afternoon. Seas
around 2 ft. Wave Detail: S 2 ft at 7 seconds and NW 1 foot at
3 seconds.
.FRI NIGHT...S winds 5 to 10 kt, becoming NW after midnight. Seas
1 foot or less. Wave Detail: S 1 foot at 3 seconds and N 1 foot
at 5 seconds.
.SAT AND SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: NW 1 foot at 3 seconds and E
1 foot at 7 seconds.
.SUN THROUGH MON 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.

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.

$$

ANZ254-040600-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
106 PM EDT Thu Jul 3 2025

.THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. Wave Detail: S 3 ft at 7 seconds and W 1 foot at
3 seconds. Areas of fog. A slight chance of tstms. Some tstms may
be severe with damaging winds, small hail, frequent lightning,
and heavy rainfall. Vsby 1 NM or less.
.TONIGHT...W winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: S
3 ft at 8 seconds and W 1 foot at 3 seconds. Areas of fog. Vsby
1 NM or less.
.FRI...NW winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft
at 8 seconds and NW 2 ft at 3 seconds.
.FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and SE 2 ft at
8 seconds.
.SAT AND 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 4 seconds and SE 2 ft at
8 seconds.
.SUN THROUGH MON 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 8 seconds.

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.

$$

ANZ255-040600-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
106 PM EDT Thu Jul 3 2025

.THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds and E 1 foot at
9 seconds. Areas of fog. Vsby 1 NM or less.
.TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
NW after midnight. Seas 3 to 4 ft. Wave Detail: S 4 ft at
8 seconds and W 1 foot at 3 seconds. Areas of fog. Vsby 1 NM or
less.
.FRI...W winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at
8 seconds and SE 2 ft at 8 seconds.
.FRI NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas
2 to 3 ft. Wave Detail: SW 3 ft at 7 seconds and SE 2 ft at
8 seconds.
.SAT AND 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 7 seconds and NW 1 foot at
4 seconds.
.SUN THROUGH MON 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 8 seconds.

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.

$$

ANZ256-040600-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
106 PM EDT Thu Jul 3 2025

.THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 4 ft. Wave Detail: S 4 ft at 7 seconds and E 1 foot at
8 seconds. Areas of fog. Vsby 1 NM or less.
.TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
NW after midnight. Seas 3 to 4 ft. Wave Detail: S 4 ft at
8 seconds and W 1 foot at 3 seconds. Areas of fog in the evening
with vsby 1 to 3 NM.
.FRI...NW winds around 10 kt, becoming W in the afternoon. Seas
3 to 4 ft. Wave Detail: S 3 ft at 8 seconds and SE 2 ft at
8 seconds.
.FRI NIGHT...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 NW
1 foot at 3 seconds.
.SAT AND 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 7 seconds and NW 1 foot at
3 seconds.
.SUN THROUGH MON 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.

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.

$$

ANZ232-040600-
Nantucket Sound-
106 PM EDT Thu Jul 3 2025

.THIS AFTERNOON...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 1 foot
at 8 seconds. Areas of fog. Vsby 1 to 3 NM.
.TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
NW after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at
7 seconds and W 1 foot at 3 seconds. Areas of fog in the evening.
A chance of showers in the evening with vsby 1 to 3 NM.
.FRI...NW winds 10 to 15 kt, becoming SW in the afternoon. Seas
around 2 ft. Wave Detail: NW 1 foot at 3 seconds and S 1 foot at
7 seconds.
.FRI NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas around 2 ft. Wave Detail: NW 1 foot at 3 seconds and SW
1 foot at 5 seconds.
.SAT AND SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: SW 2 ft at 5 seconds and NW 1 foot
at 2 seconds.
.SUN THROUGH MON 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.

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.

$$

ANZ233-040600-
Vineyard Sound-
106 PM EDT Thu Jul 3 2025

.THIS AFTERNOON...SW winds around 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and E 1 foot at
8 seconds.
.TONIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening.
Seas 2 to 3 ft. Wave Detail: SW 3 ft at 6 seconds and W 1 foot at
3 seconds. A chance of showers in the evening.
.FRI...NW winds around 10 kt, becoming SW in the afternoon. Seas
around 2 ft. Wave Detail: SW 2 ft at 7 seconds and NW 1 foot at
2 seconds.
.FRI NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas
around 2 ft. Wave Detail: S 2 ft at 7 seconds and NW 1 foot at
3 seconds.
.SAT AND SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and NW 1 foot
at 3 seconds.
.SUN THROUGH MON 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 9 seconds.

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.

$$

ANZ234-040600-
Buzzards Bay-
106 PM EDT Thu Jul 3 2025

.THIS AFTERNOON...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 E 1 foot at
8 seconds. A slight chance of tstms. Some tstms may be severe
with damaging winds, small hail, frequent lightning, and heavy
rainfall.
.TONIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
NW 5 to 10 kt after midnight. Seas around 2 ft. Wave Detail: SW
2 ft at 4 seconds and SE 1 foot at 8 seconds. A chance of showers
in the evening.
.FRI...NW winds around 10 kt, becoming SW in the afternoon. Seas
around 2 ft. Wave Detail: SW 2 ft at 6 seconds and NW 1 foot at
2 seconds.
.FRI NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
W 2 ft at 4 seconds and E 1 foot at 7 seconds.
.SAT AND SAT NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: W 2 ft at 4 seconds and SE 1 foot
at 8 seconds.
.SUN THROUGH MON 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.

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.

$$

ANZ235-040600-
Rhode Island Sound-
106 PM EDT Thu Jul 3 2025

.THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: SW 3 ft at 7 seconds and E 1 foot at
8 seconds.
.TONIGHT...W winds 10 to 15 kt. Gusts up to 20 kt in the evening.
Seas 2 to 4 ft. Wave Detail: S 4 ft at 8 seconds and W 1 foot at
3 seconds.
.FRI...NW winds around 10 kt, becoming SW in the afternoon. Seas
2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and SE 2 ft at
8 seconds.
.FRI NIGHT...W 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 AND 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 NW 1 foot at
3 seconds.
.SUN THROUGH MON 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.

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.

$$

ANZ237-040600-
Block Island Sound-
106 PM EDT Thu Jul 3 2025

.THIS AFTERNOON...SW winds 10 to 15 kt with 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. A slight chance of tstms. Some tstms may be severe
with damaging winds, small hail, frequent lightning, and heavy
rainfall.
.TONIGHT...W winds 10 to 15 kt, becoming NW 5 to 10 kt after
midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and W
1 foot at 3 seconds. A chance of showers in the evening.
.FRI...NW winds around 10 kt, becoming SW in the afternoon. Seas
2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and SE 2 ft at
8 seconds.
.FRI NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas
2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and W 1 foot at
3 seconds.
.SAT AND SAT NIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 7 seconds and NW 1 foot at 2 seconds.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 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 9 seconds.

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.

$$

ANZ230-040600-
Boston Harbor-
106 PM EDT Thu Jul 3 2025

.THIS AFTERNOON...SW winds around 10 kt. Waves around 2 ft. A
chance of showers and tstms. Some tstms may be severe with
damaging winds, small hail, frequent lightning, and heavy
rainfall.
.TONIGHT...W winds around 10 kt. Waves around 2 ft in the
evening, then 1 foot or less. A chance of showers and tstms in
the evening. Some tstms may be severe with damaging winds, small
hail, frequent lightning, and heavy rainfall.
.FRI...NW winds around 10 kt. Waves around 2 ft.
.FRI NIGHT...NW winds 5 to 10 kt. Waves around 2 ft in the
evening, then 1 foot or less.
.SAT AND SAT NIGHT...SW winds 5 to 10 kt. Waves around 2 ft.
.SUN THROUGH MON NIGHT...SW winds 15 to 20 kt with gusts up to
25 kt. Waves around 2 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.

$$

ANZ236-040600-
Narragansett Bay-
106 PM EDT Thu Jul 3 2025

.THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft. A slight chance of showers and tstms. Some
tstms may be severe with damaging winds, small hail, frequent
lightning, and heavy rainfall.
.TONIGHT...W winds 5 to 10 kt. Waves around 2 ft.
.FRI...W winds 5 to 10 kt. Waves around 2 ft.
.FRI NIGHT...NW winds 5 to 10 kt. Waves around 2 ft.
.SAT AND SAT NIGHT...SW winds 10 to 15 kt. Waves around 2 ft.
.SUN THROUGH MON NIGHT...SW winds 10 to 15 kt with gusts up to
25 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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