FZUS51 KBOX 181104
CWFBOX
Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
704 AM EDT Wed Jun 18 2025
Coastal waters from the Merrimack River MA to Watch Hill RI out
to 25 NM
ANZ200-190000-
704 AM EDT Wed Jun 18 2025
.Synopsis for Massachusetts and Rhode Island coastal waters...
Low pres lifts northeast across the Great Lakes Wed into Wed
night and into Quebec on Thu. This will drag a cold front across the
region Thu night. This will be followed by a weak ridge of high pres
Fri into Sat. A Bermuda high will then take control of our weather
early next week.
$$
ANZ250-190000-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
704 AM EDT Wed Jun 18 2025
.TODAY...S winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 7 seconds and S 1 foot at 2 seconds. Patchy fog. A slight
chance of showers this morning. Vsby 1 NM or less.
.TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 7 seconds and SW 2 ft at 3 seconds. Patchy fog. Vsby 1 NM
or less.
.THU...SW winds 5 to 10 kt, becoming S 15 to 20 kt with gusts up
to 25 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at
4 seconds and SE 2 ft at 7 seconds. Patchy fog in the morning
with vsby 1 to 3 NM.
.THU NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas
3 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and SE 3 ft at
8 seconds.
.FRI AND FRI NIGHT...W winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Wave Detail: W 4 ft at 4 seconds and E 2 ft at
8 seconds.
.SAT THROUGH SUN NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and E
2 ft at 7 seconds.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ251-190000-
Massachusetts Bay and Ipswich Bay-
704 AM EDT Wed Jun 18 2025
.TODAY...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E
2 ft at 7 seconds and S 1 foot at 3 seconds. Patchy fog. A chance
of showers this morning. Vsby 1 NM or less, increasing to 1 to
3 NM this afternoon.
.TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 7 seconds and S 1 foot at 3 seconds. Patchy fog. Vsby
1 to 3 NM, decreasing to 1 NM or less after midnight.
.THU...SW winds 5 to 10 kt, becoming S 15 to 20 kt with gusts up
to 25 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at
3 seconds and SE 2 ft at 7 seconds. Patchy fog in the morning
with vsby 1 to 3 NM.
.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 4 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 around 2 ft. Wave Detail: W 2 ft at 3 seconds and E 2 ft at
8 seconds.
.SAT THROUGH SUN 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 E
2 ft 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.
$$
ANZ231-190000-
Cape Cod Bay-
704 AM EDT Wed Jun 18 2025
.TODAY...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 6 seconds and S 1 foot at 2 seconds. Patchy fog. A slight
chance of showers this morning. Vsby 1 NM or less.
.TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 7 seconds and S 1 foot at 2 seconds. Patchy fog. Vsby
1 NM or less.
.THU...SW winds 5 to 10 kt, increasing to 15 to 20 kt with gusts
up to 25 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: SW
2 ft at 3 seconds and SE 2 ft at 7 seconds. Patchy fog in the
morning with vsby 1 to 3 NM.
.THU NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail:
SW 2 ft at 4 seconds and E 2 ft at 8 seconds.
.FRI...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: W 2 ft at 3 seconds and E 1 foot at 8 seconds.
.FRI NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W
1 foot at 4 seconds and E 1 foot at 8 seconds.
.SAT THROUGH SUN NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas around 2 ft.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ254-190000-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
704 AM EDT Wed Jun 18 2025
.TODAY...S 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.
.TONIGHT...S winds around 10 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 6 seconds. Patchy fog. Vsby 1 NM or less.
.THU...SW winds around 10 kt, increasing to 15 to 20 kt with
gusts up to 25 kt in the afternoon. Seas 2 to 4 ft. Wave Detail:
S 4 ft at 6 seconds. Patchy fog in the morning with vsby 1 NM or
less.
.THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 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 3 to 5 ft. Wave Detail: SW 4 ft at 7 seconds and E 2 ft at
8 seconds.
.SAT THROUGH SUN NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 6 seconds and E
2 ft 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.
$$
ANZ255-190000-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
704 AM EDT Wed Jun 18 2025
.TODAY...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 7 seconds. Patchy fog. Vsby 1 NM or less.
.TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 6 seconds. Patchy fog. Vsby 1 NM or less.
.THU...SW winds around 10 kt, increasing to 15 to 20 kt with
gusts up to 25 kt in the afternoon. Seas 3 to 4 ft. Wave Detail:
SW 4 ft at 5 seconds and E 2 ft at 7 seconds. Patchy fog in the
morning with vsby 1 NM or less.
.THU NIGHT...SW winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. Seas 4 to 6 ft. Wave Detail: SW 6 ft at 6 seconds
and E 2 ft at 8 seconds.
.FRI AND FRI NIGHT...SW winds 15 to 20 kt. Seas 4 to 6 ft. Wave
Detail: SW 5 ft at 7 seconds and E 2 ft at 8 seconds.
.SAT THROUGH SUN NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 7 seconds and E
1 foot at 8 seconds.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ256-190000-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
704 AM EDT Wed Jun 18 2025
.TODAY...S winds 5 to 10 kt. Seas around 3 ft. Wave Detail: SE
3 ft at 7 seconds. Patchy fog. A slight chance of showers this
morning. Vsby 1 NM or less.
.TONIGHT...S winds 5 to 10 kt. Seas around 3 ft. Wave Detail: SE
3 ft at 6 seconds. Patchy fog. A chance of showers in the
evening. Vsby 1 NM or less.
.THU...SW winds around 10 kt, increasing to 15 to 20 kt with
gusts up to 25 kt in the afternoon. Seas 3 to 4 ft. Wave Detail:
SW 4 ft at 5 seconds and E 2 ft at 7 seconds. Patchy fog in the
morning with vsby 1 to 3 NM.
.THU NIGHT...SW winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. Seas 4 to 6 ft. Wave Detail: SW 6 ft at 6 seconds
and E 1 foot at 8 seconds.
.FRI...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.
.FRI NIGHT...W winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 8 seconds and E
2 ft at 8 seconds.
.SAT THROUGH SUN 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.
$$
ANZ232-190000-
Nantucket Sound-
704 AM EDT Wed Jun 18 2025
.TODAY...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E
2 ft at 7 seconds and S 1 foot at 4 seconds. Patchy fog. Vsby
1 NM or less.
.TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 3 seconds and E 1 foot at 7 seconds. Patchy fog. Vsby
1 NM or less.
.THU...SW winds 5 to 10 kt, increasing to 15 to 20 kt with gusts
up to 25 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW
3 ft at 4 seconds and E 1 foot at 7 seconds. Patchy fog in the
morning with vsby 1 to 3 NM.
.THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and E 1 foot at
8 seconds.
.FRI AND FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. Wave Detail: W 3 ft at 4 seconds and E 1 foot at
8 seconds.
.SAT THROUGH SUN NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E
1 foot at 8 seconds.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ233-190000-
Vineyard Sound-
704 AM EDT Wed Jun 18 2025
.TODAY...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 7 seconds and S 1 foot at 4 seconds. Patchy fog. A chance
of showers this morning. Vsby 1 NM or less.
.TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 4 seconds and SE 1 foot at 7 seconds. Patchy fog. Vsby
1 NM or less.
.THU...SW winds 5 to 10 kt, increasing to 15 to 20 kt with gusts
up to 25 kt in the afternoon. Seas around 2 ft, building to 3 to
4 ft in the afternoon. Wave Detail: SW 2 ft at 4 seconds and SE
1 foot at 7 seconds, becoming SW 3 ft at 5 seconds and E 1 foot
at 7 seconds. Patchy fog in the morning with vsby 1 to 3 NM.
.THU 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 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. Wave Detail: SW 3 ft at 6 seconds and E 1 foot at
8 seconds.
.SAT THROUGH SUN NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 6 seconds and E
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.
$$
ANZ234-190000-
Buzzards Bay-
704 AM EDT Wed Jun 18 2025
.TODAY...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 7 seconds and S 1 foot at 3 seconds. Patchy fog. A slight
chance of showers this morning. Vsby 1 NM or less, increasing to
1 to 3 NM this afternoon.
.TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 7 seconds and SW 1 foot at 3 seconds. Patchy fog. Vsby
1 NM or less.
.THU...SW winds 5 to 10 kt, increasing to 15 to 20 kt with gusts
up to 25 kt in the afternoon. Seas around 2 ft, building to 3 to
4 ft in the afternoon. Wave Detail: SW 2 ft at 3 seconds and SE
1 foot at 7 seconds, becoming SW 3 ft at 4 seconds and E 1 foot
at 7 seconds. Patchy fog in the morning with vsby 1 to 3 NM.
.THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and E 1 foot at
8 seconds.
.FRI AND FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. Wave Detail: SW 3 ft at 6 seconds and E 1 foot at
8 seconds.
.SAT THROUGH SUN NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 7 seconds and E
1 foot at 8 seconds.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ235-190000-
Rhode Island Sound-
704 AM EDT Wed Jun 18 2025
.TODAY...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 7 seconds. Patchy fog. A slight chance of showers this
morning. Vsby 1 NM or less.
.TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 7 seconds. Patchy fog. Vsby 1 NM or less.
.THU...SW winds 5 to 10 kt, increasing to 15 to 20 kt with gusts
up to 25 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: S 4 ft
at 6 seconds. Patchy fog in the morning with vsby 1 to 3 NM.
.THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 ft. Wave Detail: SW 5 ft at 6 seconds and SE 1 foot at
7 seconds.
.FRI...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: SW 5 ft at 7 seconds and SE 1 foot at
8 seconds.
.FRI NIGHT...W winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 8 seconds and E
1 foot at 8 seconds.
.SAT THROUGH SUN NIGHT...SW 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.
$$
ANZ237-190000-
Block Island Sound-
704 AM EDT Wed Jun 18 2025
.TODAY...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 7 seconds. Patchy dense fog this morning, then patchy fog this
afternoon. A slight chance of showers this morning. Vsby 1 NM or
less.
.TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 7 seconds. Patchy fog. A chance of showers in the
evening. Vsby 1 NM or less.
.THU...SW winds 5 to 10 kt, increasing to 15 to 20 kt with gusts
up to 25 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: SW
3 ft at 5 seconds and SE 2 ft at 7 seconds. Patchy fog in the
morning with vsby 1 to 3 NM.
.THU NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail:
SW 4 ft at 6 seconds and SE 2 ft at 7 seconds.
.FRI AND FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. Wave Detail: W 4 ft at 7 seconds and E 1 foot at
8 seconds.
.SAT THROUGH SUN NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 6 seconds and E
1 foot at 8 seconds.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ230-190000-
Boston Harbor-
704 AM EDT Wed Jun 18 2025
.TODAY...S winds 5 to 10 kt. Waves 1 foot or less, then around
2 ft this afternoon. Patchy fog. A chance of showers this morning
with vsby 1 to 3 NM.
.TONIGHT...S winds 5 to 10 kt. Waves around 2 ft in the evening,
then 1 foot or less. Patchy fog. Vsby 1 to 3 NM, decreasing to
1 NM or less after midnight.
.THU...SW winds around 5 kt, increasing to 15 to 20 kt with gusts
up to 25 kt in the afternoon. Waves around 2 ft. Patchy fog in
the morning with vsby 1 to 3 NM.
.THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Waves
around 2 ft.
.FRI...W winds 10 to 15 kt with gusts up to 20 kt. Waves around
2 ft.
.FRI NIGHT...W winds 5 to 10 kt. Waves around 2 ft in the
evening, then 1 foot or less.
.SAT THROUGH SUN 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.
$$
ANZ236-190000-
Narragansett Bay-
704 AM EDT Wed Jun 18 2025
.TODAY...S winds 5 to 10 kt. Waves around 2 ft. Patchy fog. A
chance of showers this morning. Vsby 1 NM or less, increasing to
1 to 3 NM this afternoon.
.TONIGHT...S winds 5 to 10 kt. Waves around 2 ft. Patchy fog.
Vsby 1 NM or less.
.THU...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 25 kt in the afternoon. Waves 2 to 3 ft. Patchy fog in the
morning.
.THU NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Waves
2 to 4 ft.
.FRI AND FRI NIGHT...W winds 5 to 10 kt. Waves 2 to 4 ft.
.SAT THROUGH SUN NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Waves around 2 ft.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
For the latest updates...please visit our webpage at
www.weather.gov/boston
You can follow us on Facebook at
www.facebook.com/NWSBoston
You can follow us on Twitter at
@NWSBoston
CWFBOX
Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
704 AM EDT Wed Jun 18 2025
Coastal waters from the Merrimack River MA to Watch Hill RI out
to 25 NM
ANZ200-190000-
704 AM EDT Wed Jun 18 2025
.Synopsis for Massachusetts and Rhode Island coastal waters...
Low pres lifts northeast across the Great Lakes Wed into Wed
night and into Quebec on Thu. This will drag a cold front across the
region Thu night. This will be followed by a weak ridge of high pres
Fri into Sat. A Bermuda high will then take control of our weather
early next week.
$$
ANZ250-190000-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
704 AM EDT Wed Jun 18 2025
.TODAY...S winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 7 seconds and S 1 foot at 2 seconds. Patchy fog. A slight
chance of showers this morning. Vsby 1 NM or less.
.TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 7 seconds and SW 2 ft at 3 seconds. Patchy fog. Vsby 1 NM
or less.
.THU...SW winds 5 to 10 kt, becoming S 15 to 20 kt with gusts up
to 25 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at
4 seconds and SE 2 ft at 7 seconds. Patchy fog in the morning
with vsby 1 to 3 NM.
.THU NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas
3 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and SE 3 ft at
8 seconds.
.FRI AND FRI NIGHT...W winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Wave Detail: W 4 ft at 4 seconds and E 2 ft at
8 seconds.
.SAT THROUGH SUN NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and E
2 ft at 7 seconds.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ251-190000-
Massachusetts Bay and Ipswich Bay-
704 AM EDT Wed Jun 18 2025
.TODAY...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E
2 ft at 7 seconds and S 1 foot at 3 seconds. Patchy fog. A chance
of showers this morning. Vsby 1 NM or less, increasing to 1 to
3 NM this afternoon.
.TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 7 seconds and S 1 foot at 3 seconds. Patchy fog. Vsby
1 to 3 NM, decreasing to 1 NM or less after midnight.
.THU...SW winds 5 to 10 kt, becoming S 15 to 20 kt with gusts up
to 25 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at
3 seconds and SE 2 ft at 7 seconds. Patchy fog in the morning
with vsby 1 to 3 NM.
.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 4 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 around 2 ft. Wave Detail: W 2 ft at 3 seconds and E 2 ft at
8 seconds.
.SAT THROUGH SUN 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 E
2 ft 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.
$$
ANZ231-190000-
Cape Cod Bay-
704 AM EDT Wed Jun 18 2025
.TODAY...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 6 seconds and S 1 foot at 2 seconds. Patchy fog. A slight
chance of showers this morning. Vsby 1 NM or less.
.TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 7 seconds and S 1 foot at 2 seconds. Patchy fog. Vsby
1 NM or less.
.THU...SW winds 5 to 10 kt, increasing to 15 to 20 kt with gusts
up to 25 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: SW
2 ft at 3 seconds and SE 2 ft at 7 seconds. Patchy fog in the
morning with vsby 1 to 3 NM.
.THU NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail:
SW 2 ft at 4 seconds and E 2 ft at 8 seconds.
.FRI...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: W 2 ft at 3 seconds and E 1 foot at 8 seconds.
.FRI NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W
1 foot at 4 seconds and E 1 foot at 8 seconds.
.SAT THROUGH SUN NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas around 2 ft.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ254-190000-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
704 AM EDT Wed Jun 18 2025
.TODAY...S 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.
.TONIGHT...S winds around 10 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 6 seconds. Patchy fog. Vsby 1 NM or less.
.THU...SW winds around 10 kt, increasing to 15 to 20 kt with
gusts up to 25 kt in the afternoon. Seas 2 to 4 ft. Wave Detail:
S 4 ft at 6 seconds. Patchy fog in the morning with vsby 1 NM or
less.
.THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 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 3 to 5 ft. Wave Detail: SW 4 ft at 7 seconds and E 2 ft at
8 seconds.
.SAT THROUGH SUN NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 6 seconds and E
2 ft 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.
$$
ANZ255-190000-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
704 AM EDT Wed Jun 18 2025
.TODAY...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 7 seconds. Patchy fog. Vsby 1 NM or less.
.TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 6 seconds. Patchy fog. Vsby 1 NM or less.
.THU...SW winds around 10 kt, increasing to 15 to 20 kt with
gusts up to 25 kt in the afternoon. Seas 3 to 4 ft. Wave Detail:
SW 4 ft at 5 seconds and E 2 ft at 7 seconds. Patchy fog in the
morning with vsby 1 NM or less.
.THU NIGHT...SW winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. Seas 4 to 6 ft. Wave Detail: SW 6 ft at 6 seconds
and E 2 ft at 8 seconds.
.FRI AND FRI NIGHT...SW winds 15 to 20 kt. Seas 4 to 6 ft. Wave
Detail: SW 5 ft at 7 seconds and E 2 ft at 8 seconds.
.SAT THROUGH SUN NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 7 seconds and E
1 foot at 8 seconds.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ256-190000-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
704 AM EDT Wed Jun 18 2025
.TODAY...S winds 5 to 10 kt. Seas around 3 ft. Wave Detail: SE
3 ft at 7 seconds. Patchy fog. A slight chance of showers this
morning. Vsby 1 NM or less.
.TONIGHT...S winds 5 to 10 kt. Seas around 3 ft. Wave Detail: SE
3 ft at 6 seconds. Patchy fog. A chance of showers in the
evening. Vsby 1 NM or less.
.THU...SW winds around 10 kt, increasing to 15 to 20 kt with
gusts up to 25 kt in the afternoon. Seas 3 to 4 ft. Wave Detail:
SW 4 ft at 5 seconds and E 2 ft at 7 seconds. Patchy fog in the
morning with vsby 1 to 3 NM.
.THU NIGHT...SW winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. Seas 4 to 6 ft. Wave Detail: SW 6 ft at 6 seconds
and E 1 foot at 8 seconds.
.FRI...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.
.FRI NIGHT...W winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Seas 3 to 5 ft. Wave Detail: SW 4 ft at 8 seconds and E
2 ft at 8 seconds.
.SAT THROUGH SUN 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.
$$
ANZ232-190000-
Nantucket Sound-
704 AM EDT Wed Jun 18 2025
.TODAY...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E
2 ft at 7 seconds and S 1 foot at 4 seconds. Patchy fog. Vsby
1 NM or less.
.TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 3 seconds and E 1 foot at 7 seconds. Patchy fog. Vsby
1 NM or less.
.THU...SW winds 5 to 10 kt, increasing to 15 to 20 kt with gusts
up to 25 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SW
3 ft at 4 seconds and E 1 foot at 7 seconds. Patchy fog in the
morning with vsby 1 to 3 NM.
.THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and E 1 foot at
8 seconds.
.FRI AND FRI NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. Wave Detail: W 3 ft at 4 seconds and E 1 foot at
8 seconds.
.SAT THROUGH SUN NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and E
1 foot at 8 seconds.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ233-190000-
Vineyard Sound-
704 AM EDT Wed Jun 18 2025
.TODAY...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 7 seconds and S 1 foot at 4 seconds. Patchy fog. A chance
of showers this morning. Vsby 1 NM or less.
.TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 4 seconds and SE 1 foot at 7 seconds. Patchy fog. Vsby
1 NM or less.
.THU...SW winds 5 to 10 kt, increasing to 15 to 20 kt with gusts
up to 25 kt in the afternoon. Seas around 2 ft, building to 3 to
4 ft in the afternoon. Wave Detail: SW 2 ft at 4 seconds and SE
1 foot at 7 seconds, becoming SW 3 ft at 5 seconds and E 1 foot
at 7 seconds. Patchy fog in the morning with vsby 1 to 3 NM.
.THU 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 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. Wave Detail: SW 3 ft at 6 seconds and E 1 foot at
8 seconds.
.SAT THROUGH SUN NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 6 seconds and E
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.
$$
ANZ234-190000-
Buzzards Bay-
704 AM EDT Wed Jun 18 2025
.TODAY...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 7 seconds and S 1 foot at 3 seconds. Patchy fog. A slight
chance of showers this morning. Vsby 1 NM or less, increasing to
1 to 3 NM this afternoon.
.TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 7 seconds and SW 1 foot at 3 seconds. Patchy fog. Vsby
1 NM or less.
.THU...SW winds 5 to 10 kt, increasing to 15 to 20 kt with gusts
up to 25 kt in the afternoon. Seas around 2 ft, building to 3 to
4 ft in the afternoon. Wave Detail: SW 2 ft at 3 seconds and SE
1 foot at 7 seconds, becoming SW 3 ft at 4 seconds and E 1 foot
at 7 seconds. Patchy fog in the morning with vsby 1 to 3 NM.
.THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and E 1 foot at
8 seconds.
.FRI AND FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. Wave Detail: SW 3 ft at 6 seconds and E 1 foot at
8 seconds.
.SAT THROUGH SUN NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 7 seconds and E
1 foot at 8 seconds.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ235-190000-
Rhode Island Sound-
704 AM EDT Wed Jun 18 2025
.TODAY...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 7 seconds. Patchy fog. A slight chance of showers this
morning. Vsby 1 NM or less.
.TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 7 seconds. Patchy fog. Vsby 1 NM or less.
.THU...SW winds 5 to 10 kt, increasing to 15 to 20 kt with gusts
up to 25 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: S 4 ft
at 6 seconds. Patchy fog in the morning with vsby 1 to 3 NM.
.THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 ft. Wave Detail: SW 5 ft at 6 seconds and SE 1 foot at
7 seconds.
.FRI...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft. Wave Detail: SW 5 ft at 7 seconds and SE 1 foot at
8 seconds.
.FRI NIGHT...W winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 8 seconds and E
1 foot at 8 seconds.
.SAT THROUGH SUN NIGHT...SW 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.
$$
ANZ237-190000-
Block Island Sound-
704 AM EDT Wed Jun 18 2025
.TODAY...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 7 seconds. Patchy dense fog this morning, then patchy fog this
afternoon. A slight chance of showers this morning. Vsby 1 NM or
less.
.TONIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 7 seconds. Patchy fog. A chance of showers in the
evening. Vsby 1 NM or less.
.THU...SW winds 5 to 10 kt, increasing to 15 to 20 kt with gusts
up to 25 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: SW
3 ft at 5 seconds and SE 2 ft at 7 seconds. Patchy fog in the
morning with vsby 1 to 3 NM.
.THU NIGHT...SW winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail:
SW 4 ft at 6 seconds and SE 2 ft at 7 seconds.
.FRI AND FRI NIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. Wave Detail: W 4 ft at 7 seconds and E 1 foot at
8 seconds.
.SAT THROUGH SUN NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Seas around 2 ft. Wave Detail: SW 2 ft at 6 seconds and E
1 foot at 8 seconds.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
ANZ230-190000-
Boston Harbor-
704 AM EDT Wed Jun 18 2025
.TODAY...S winds 5 to 10 kt. Waves 1 foot or less, then around
2 ft this afternoon. Patchy fog. A chance of showers this morning
with vsby 1 to 3 NM.
.TONIGHT...S winds 5 to 10 kt. Waves around 2 ft in the evening,
then 1 foot or less. Patchy fog. Vsby 1 to 3 NM, decreasing to
1 NM or less after midnight.
.THU...SW winds around 5 kt, increasing to 15 to 20 kt with gusts
up to 25 kt in the afternoon. Waves around 2 ft. Patchy fog in
the morning with vsby 1 to 3 NM.
.THU NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Waves
around 2 ft.
.FRI...W winds 10 to 15 kt with gusts up to 20 kt. Waves around
2 ft.
.FRI NIGHT...W winds 5 to 10 kt. Waves around 2 ft in the
evening, then 1 foot or less.
.SAT THROUGH SUN 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.
$$
ANZ236-190000-
Narragansett Bay-
704 AM EDT Wed Jun 18 2025
.TODAY...S winds 5 to 10 kt. Waves around 2 ft. Patchy fog. A
chance of showers this morning. Vsby 1 NM or less, increasing to
1 to 3 NM this afternoon.
.TONIGHT...S winds 5 to 10 kt. Waves around 2 ft. Patchy fog.
Vsby 1 NM or less.
.THU...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 25 kt in the afternoon. Waves 2 to 3 ft. Patchy fog in the
morning.
.THU NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Waves
2 to 4 ft.
.FRI AND FRI NIGHT...W winds 5 to 10 kt. Waves 2 to 4 ft.
.SAT THROUGH SUN NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Waves around 2 ft.
Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.
$$
For the latest updates...please visit our webpage at
www.weather.gov/boston
You can follow us on Facebook at
www.facebook.com/NWSBoston
You can follow us on Twitter at
@NWSBoston