060
FZUS51 KBOX 171707
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
106 PM EDT Tue Jun 17 2025

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

ANZ200-180600-
106 PM EDT Tue Jun 17 2025

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pressurewill move offshore Mon then another low pres will track
S of the waters Tue. Weak high pres builds into the waters Wed. A
cold front approaches the waters Thurs.

$$

ANZ250-180600-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
106 PM EDT Tue Jun 17 2025

.THIS AFTERNOON...SE winds around 10 kt. Seas 2 to 3 ft. Wave
Detail: SE 2 ft at 7 seconds and S 1 foot at 3 seconds. Patchy
fog. A slight chance of showers. Vsby 1 NM or less.
.TONIGHT...S winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 7 seconds. Patchy fog. A chance of showers. Vsby 1 NM or
less.
.WED...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 7 seconds. Patchy fog. A chance of showers. Vsby 1 NM or less
in the morning.
.WED NIGHT...S winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and SW
2 ft at 4 seconds. A chance of showers. Patchy fog in the
evening.
.THU...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 4 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at
7 seconds. A chance of showers in the morning.
.THU 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 E 2 ft at
8 seconds.
.FRI THROUGH SAT...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft.
.SAT NIGHT...SW winds around 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.

$$

ANZ251-180600-
Massachusetts Bay and Ipswich Bay-
106 PM EDT Tue Jun 17 2025

.THIS AFTERNOON...SE winds around 10 kt. Seas around 2 ft. Wave
Detail: E 2 ft at 7 seconds. Patchy fog. A slight chance of
showers.
.TONIGHT...S winds around 10 kt. Seas around 2 ft. Wave Detail: E
2 ft at 7 seconds. Patchy fog. A chance of showers. Vsby 1 NM or
less.
.WED...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft
at 7 seconds. Patchy fog. A chance of showers in the morning with
vsby 1 NM or less.
.WED NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 7 seconds and SW 1 foot at 3 seconds. A chance of
showers.
.THU...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft
at 3 seconds and E 2 ft at 7 seconds. A chance of showers in the
morning.
.THU NIGHT...SW winds around 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at
9 seconds.
.FRI THROUGH SAT NIGHT...SW 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.

$$

ANZ231-180600-
Cape Cod Bay-
106 PM EDT Tue Jun 17 2025

.THIS AFTERNOON...SE winds around 10 kt. Seas around 2 ft. Wave
Detail: SE 1 foot at 3 seconds. A slight chance of showers.
.TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 5 seconds. Patchy fog. A chance of showers after
midnight. Vsby 1 NM or less.
.WED...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft
at 6 seconds and S 1 foot at 2 seconds. Patchy fog. A chance of
showers in the morning with vsby 1 NM or less.
.WED NIGHT...S winds around 10 kt. Seas around 2 ft. Wave Detail:
SE 2 ft at 7 seconds and SW 1 foot at 2 seconds. A chance of
showers. Patchy fog in the evening.
.THU...SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at
7 seconds. A chance of showers in the morning.
.THU NIGHT...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.
.FRI THROUGH SAT NIGHT...SW 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.

$$

ANZ254-180600-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
106 PM EDT Tue Jun 17 2025

.THIS AFTERNOON...SE winds around 10 kt. Seas 2 to 3 ft. Wave
Detail: SE 3 ft at 7 seconds. Patchy fog. Vsby 1 NM or less.
.TONIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 7 seconds. Patchy fog. Vsby 1 NM or less.
.WED...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 7 seconds. Patchy fog. A chance of showers in the morning.
Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon.
.WED NIGHT...S winds around 10 kt. Seas 2 to 4 ft. Wave Detail:
SE 3 ft at 7 seconds. A chance of showers. Patchy fog in the
evening with vsby 1 to 3 NM.
.THU...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 7 seconds.
A chance of showers in the morning.
.THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 5 ft. Wave Detail: SW 4 ft at 5 seconds and E 2 ft at
8 seconds.
.FRI AND FRI NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt. Seas
3 to 5 ft.
.SAT AND SAT NIGHT...SW winds 5 to 10 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.

$$

ANZ255-180600-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
106 PM EDT Tue Jun 17 2025

.THIS AFTERNOON...SE winds around 10 kt. Seas 2 to 3 ft. Wave
Detail: SE 3 ft at 7 seconds. Patchy fog. Vsby 1 NM or less.
.TONIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 7 seconds. Patchy fog. Vsby 1 NM or less.
.WED...S winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 7 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to
3 NM in the afternoon.
.WED NIGHT...SW winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail: S
3 ft at 6 seconds. A chance of showers. Patchy fog in the evening
with vsby 1 to 3 NM.
.THU...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and
SE 2 ft at 7 seconds. A chance of showers in the morning.
.THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
4 to 6 ft. Wave Detail: SW 5 ft at 6 seconds and E 2 ft at
8 seconds.
.FRI AND FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 4 to 6 ft.
.SAT AND SAT NIGHT...SW winds around 10 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.

$$

ANZ256-180600-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
106 PM EDT Tue Jun 17 2025

.THIS AFTERNOON...SE winds around 10 kt. Seas around 3 ft. Wave
Detail: SE 3 ft at 7 seconds. Patchy fog. Vsby 1 NM or less.
.TONIGHT...SE winds 5 to 10 kt. Seas around 3 ft. Wave Detail: SE
3 ft at 7 seconds. Patchy fog. Vsby 1 NM or less.
.WED...S winds 5 to 10 kt. Seas around 3 ft. Wave Detail: SE 3 ft
at 7 seconds. Patchy fog. A chance of showers in the morning.
Vsby 1 NM or less, increasing to 1 to 3 NM in the afternoon.
.WED NIGHT...SW winds 10 to 15 kt. Seas 2 to 4 ft. Wave Detail:
SE 3 ft at 7 seconds. A chance of showers. Patchy fog in the
evening with vsby 1 to 3 NM.
.THU AND THU NIGHT...W 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
3 seconds.
.FRI AND FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 4 to 6 ft. Wave Detail: SW 5 ft at 7 seconds and E 2 ft at
8 seconds.
.SAT AND SAT NIGHT...SW winds around 10 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.

$$

ANZ232-180600-
Nantucket Sound-
106 PM EDT Tue Jun 17 2025

.THIS AFTERNOON...SE winds around 10 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 6 seconds. Patchy fog. Vsby 1 NM or less.
.TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 6 seconds. Patchy fog. Vsby 1 NM or less.
.WED...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft
at 7 seconds. Patchy fog. A chance of showers in the morning with
vsby 1 NM or less.
.WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SW 2 ft at 4 seconds and E 1 foot at 7 seconds. A chance of
showers. Patchy fog in the evening.
.THU...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and
E 1 foot at 7 seconds. A chance of showers in the morning.
.THU NIGHT...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 E 1 foot at
8 seconds.
.FRI AND FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft.
.SAT AND SAT NIGHT...SW winds around 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.

$$

ANZ233-180600-
Vineyard Sound-
106 PM EDT Tue Jun 17 2025

.THIS AFTERNOON...SE winds around 10 kt. Seas around 2 ft. Wave
Detail: E 1 foot at 3 seconds and S 1 foot at 6 seconds.
.TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 6 seconds. Patchy fog. Vsby 1 NM or less.
.WED...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft
at 6 seconds. Patchy fog. A chance of showers in the morning with
vsby 1 NM or less.
.WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 6 seconds. A chance of showers. Patchy fog in the
evening.
.THU...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and
SE 1 foot at 7 seconds. A chance of showers in the morning.
.THU NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail:
SW 3 ft at 6 seconds and SW 1 foot at 3 seconds.
.FRI AND FRI NIGHT...W winds 10 to 15 kt. Gusts up to 20 kt. Seas
2 to 4 ft.
.SAT AND SAT NIGHT...SW 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.

$$

ANZ234-180600-
Buzzards Bay-
106 PM EDT Tue Jun 17 2025

.THIS AFTERNOON...SE winds around 10 kt. Seas around 2 ft. Wave
Detail: E 1 foot at 2 seconds and S 1 foot at 6 seconds.
.TONIGHT...SE winds 5 to 10 kt. Seas 1 foot or less. Wave Detail:
SE 1 foot at 5 seconds. Patchy fog. A chance of showers after
midnight. Vsby 1 NM or less.
.WED...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft
at 7 seconds and SW 1 foot at 3 seconds. Patchy fog. A chance of
showers in the morning with vsby 1 NM or less.
.WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft in the
evening, then 1 foot or less. Wave Detail: SE 2 ft at 7 seconds
and SW 1 foot at 3 seconds, becoming SW 1 foot at 4 seconds and
SE 1 foot at 7 seconds. A chance of showers. Patchy fog in the
evening.
.THU...SW 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: SW
3 ft at 4 seconds and SE 1 foot at 7 seconds. A chance of showers
in the morning.
.THU NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds
and E 1 foot at 7 seconds.
.FRI AND FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft.
.SAT AND SAT NIGHT...SW 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.

$$

ANZ235-180600-
Rhode Island Sound-
106 PM EDT Tue Jun 17 2025

.THIS AFTERNOON...SE winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 7 seconds. Patchy fog. Vsby 1 NM or less.
.TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 7 seconds. Patchy fog. Vsby 1 NM or less.
.WED...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at
7 seconds. Patchy fog. A chance of showers in the morning with
vsby 1 NM or less.
.WED NIGHT...SW winds around 10 kt. Seas 2 to 3 ft. Wave Detail:
S 3 ft at 7 seconds. A chance of showers. Patchy fog in the
evening.
.THU AND THU NIGHT...W winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Wave Detail: S 4 ft at 7 seconds and SW 1 foot at
3 seconds.
.FRI...W winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to
5 ft. Wave Detail: S 4 ft at 7 seconds and W 1 foot at 4 seconds.
.FRI NIGHT AND SAT...W winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt. Seas 2 to 4 ft.
.SAT NIGHT...SW winds around 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.

$$

ANZ237-180600-
Block Island Sound-
106 PM EDT Tue Jun 17 2025

.THIS AFTERNOON...SE winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: SE 2 ft at 7 seconds. Patchy fog. Vsby 1 NM or less.
.TONIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 7 seconds. Patchy fog. A chance of showers after
midnight. Vsby 1 NM or less.
.WED...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 7 seconds. Patchy fog. A chance of showers in the morning with
vsby 1 NM or less.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 7 seconds. A chance of showers. A chance of tstms in the
evening. Patchy fog in the evening.
.THU AND THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and SE 2 ft at
7 seconds.
.FRI THROUGH SAT...SW winds 10 to 15 kt. Seas 2 to 4 ft. Wave
Detail: S 3 ft at 7 seconds and W 1 foot at 3 seconds.
.SAT NIGHT...SW winds around 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.

$$

ANZ230-180600-
Boston Harbor-
106 PM EDT Tue Jun 17 2025

.THIS AFTERNOON...SE winds around 10 kt. Waves around 2 ft.
Patchy fog. A slight chance of showers.
.TONIGHT...SE winds 5 to 10 kt. Waves around 2 ft in the evening,
then 1 foot or less. Patchy fog. A chance of showers. Vsby 1 to
3 NM after midnight.
.WED...S winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft
in the afternoon. Patchy fog. A chance of showers in the morning
with vsby 1 to 3 NM.
.WED NIGHT...SW winds 5 to 10 kt. Waves around 2 ft in the
evening, then 1 foot or less. A chance of showers.
.THU AND THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft.
.FRI THROUGH SAT NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Waves 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.

$$

ANZ236-180600-
Narragansett Bay-
106 PM EDT Tue Jun 17 2025

.THIS AFTERNOON...SE winds 5 to 10 kt. Waves around 2 ft. Patchy
fog. Vsby 1 NM or less.
.TONIGHT...SE winds 5 to 10 kt. Waves around 2 ft. Patchy fog. A
chance of showers after midnight. Vsby 1 NM or less.
.WED...S winds 5 to 10 kt. Waves around 2 ft. Patchy fog. A
chance of showers in the morning with vsby 1 NM or less.
.WED NIGHT...S winds 5 to 10 kt. Waves around 2 ft. A chance of
showers. Patchy fog in the evening.
.THU AND THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Waves 2 to 4 ft.
.FRI AND FRI NIGHT...W winds 10 to 15 kt, diminishing to 5 to
10 kt. Waves 2 to 4 ft.
.SAT AND SAT NIGHT...SW winds 5 to 10 kt. Waves 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.

$$

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