Coastal Waters Forecast
Issued by NWS Boston, MA

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
684
FZUS51 KBOX 102006
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
405 PM EDT Mon Aug 10 2026

Coastal waters from the Merrimack River MA to Watch Hill RI out
to 60 NM

ANZ200-110900-
405 PM EDT Mon Aug 10 2026

.Synopsis for Massachusetts and Rhode Island coastal waters...
Weak high pressure over the region today followed by the passage of
a cold front overnight into Tue. High pres follows for the middle of
the week. This high moves east of the region Wed night with the next
cold frontal passage sometime Thu into Thu evening bringing
scattered showers and storms. A ridge of high pres then builds in
from the west Fri into Sat.

$$

ANZ250-110900-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
405 PM EDT Mon Aug 10 2026

.TONIGHT...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE
2 ft at 3 seconds and W 1 foot at 2 seconds. A slight chance of
showers and tstms after midnight.
.TUE...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft
at 4 seconds and SE 1 foot at 3 seconds.
.TUE NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
NW 1 foot at 3 seconds and S 1 foot at 6 seconds.
.WED...NW winds around 5 kt, becoming SE around 5 kt in the
afternoon. Seas around 2 ft. Wave Detail: NW 1 foot at 3 seconds
and S 1 foot at 5 seconds.
.WED NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas
around 2 ft. Wave Detail: S 2 ft at 3 seconds and N 1 foot at
3 seconds.
.THU AND THU NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: W 2 ft at 3 seconds and SE 1 foot at 3 seconds. A chance
of showers.
.FRI THROUGH SAT NIGHT...SW winds 10 to 15 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.

$$

ANZ251-110900-
Massachusetts Bay and Ipswich Bay-
405 PM EDT Mon Aug 10 2026

.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft this evening,
then 1 foot or less. Wave Detail: W 1 foot at 2 seconds and SE
1 foot at 3 seconds, becoming E 1 foot at 3 seconds and SW 1 foot
at 3 seconds. A slight chance of showers and tstms after
midnight.
.TUE...W winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S
1 foot at 3 seconds and E 1 foot at 9 seconds.
.TUE NIGHT...NW winds 5 to 10 kt. Seas 1 foot or less. Wave
Detail: NW 1 foot at 3 seconds and S 1 foot at 4 seconds.
.WED...NW winds around 5 kt, becoming SE in the afternoon. Seas
1 foot or less, then around 2 ft in the afternoon. Wave Detail: N
1 foot at 2 seconds and W 1 foot at 3 seconds, becoming N 1 foot
at 2 seconds and S 1 foot at 3 seconds.
.WED NIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas
around 2 ft in the evening, then 1 foot or less. Wave Detail: N
1 foot at 3 seconds and SE 1 foot at 3 seconds, becoming S 1 foot
at 3 seconds and E 1 foot at 3 seconds.
.THU AND THU NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: W 1 foot at 2 seconds and SE 1 foot at 3 seconds. A
chance of showers.
.FRI THROUGH SAT NIGHT...SW winds 10 to 15 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.

$$

ANZ231-110900-
Cape Cod Bay-
405 PM EDT Mon Aug 10 2026

.TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E
1 foot at 3 seconds and SW 1 foot at 3 seconds. A slight chance
of showers after midnight.
.TUE...W winds 5 to 10 kt. Seas around 2 ft in the morning, then
1 foot or less. Wave Detail: SW 1 foot at 3 seconds and E 1 foot
at 8 seconds, becoming W 1 foot at 2 seconds and S 1 foot at
5 seconds.
.TUE NIGHT...NW winds around 5 kt. Seas 1 foot or less. Wave
Detail: NW 1 foot at 2 seconds and N 1 foot at 3 seconds.
.WED...NW winds around 5 kt, becoming E in the afternoon. Seas
1 foot or less. Wave Detail: NW 1 foot at 3 seconds and N 1 foot
at 3 seconds.
.WED NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas
1 foot or less. Wave Detail: S 1 foot at 2 seconds and N 1 foot
at 3 seconds.
.THU AND THU NIGHT...W winds 5 to 10 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: SW 1 foot at 2 seconds and E
1 foot at 3 seconds. A chance of showers.
.FRI THROUGH SAT 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.

$$

ANZ254-110900-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 NM-
405 PM EDT Mon Aug 10 2026

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

$$

ANZ255-110900-
Coastal Waters extending out to 25 NM South of Marthas Vineyard
and Nantucket-
405 PM EDT Mon Aug 10 2026

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

$$

ANZ256-110900-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 NM South of Block Island-
405 PM EDT Mon Aug 10 2026

.TONIGHT...SW winds 10 to 15 kt. Seas around 3 ft. Wave Detail: S
3 ft at 6 seconds and W 2 ft at 3 seconds. A slight chance of
showers after midnight.
.TUE...W winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas around 3 ft. Wave Detail: SW 3 ft at 5 seconds and SE 1 foot
at 9 seconds.
.TUE NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
NW 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW
3 ft at 6 seconds and NW 1 foot at 3 seconds.
.WED...N winds around 5 kt, becoming SE in the afternoon. Seas
2 to 3 ft. Wave Detail: SW 2 ft at 5 seconds and N 1 foot at
3 seconds.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 7 seconds and W 1 foot at 2 seconds.
.THU AND THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. Wave Detail: S 3 ft at 6 seconds and E 1 foot at
3 seconds. A chance of showers.
.FRI THROUGH SAT NIGHT...W winds 10 to 15 kt with gusts up to
20 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.

$$

ANZ232-110900-
Nantucket Sound-
405 PM EDT Mon Aug 10 2026

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

$$

ANZ233-110900-
Vineyard Sound-
405 PM EDT Mon Aug 10 2026

.TONIGHT...SW winds around 10 kt. Seas around 2 ft. Wave Detail:
SW 2 ft at 4 seconds and SE 1 foot at 2 seconds. A slight chance
of showers after midnight.
.TUE...W winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas around 2 ft. Wave Detail: W 2 ft at 4 seconds and SE 1 foot
at 9 seconds.
.TUE NIGHT...W winds 10 to 15 kt, becoming NW 5 to 10 kt after
midnight. Seas around 2 ft. Wave Detail: W 2 ft at 5 seconds and
N 1 foot at 3 seconds.
.WED...N winds around 5 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: SW 2 ft at 5 seconds and N 1 foot at
3 seconds.
.WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SW 2 ft at 4 seconds and NE 1 foot at 5 seconds.
.THU AND THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at
9 seconds. A chance of showers.
.FRI...NW winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. A chance of showers.
.FRI NIGHT THROUGH SAT 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.

$$

ANZ234-110900-
Buzzards Bay-
405 PM EDT Mon Aug 10 2026

.TONIGHT...SW winds 10 to 15 kt. Seas around 2 ft. Wave Detail:
SW 2 ft at 4 seconds and E 1 foot at 2 seconds. A slight chance
of showers after midnight.
.TUE...W winds 5 to 10 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 4 seconds and SE 1 foot at 9 seconds.
.TUE NIGHT...W winds 10 to 15 kt, becoming NW around 5 kt after
midnight. Seas around 2 ft. Wave Detail: W 2 ft at 5 seconds and
N 1 foot at 3 seconds.
.WED...N winds around 5 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: N 1 foot at 2 seconds and W 1 foot at
4 seconds.
.WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
SW 2 ft at 4 seconds and NE 1 foot at 3 seconds.
.THU AND THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 ft. Wave Detail: SW 2 ft at 4 seconds and NE 1 foot
at 4 seconds. A chance of showers.
.FRI THROUGH SAT 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.

$$

ANZ235-110900-
Rhode Island Sound-
405 PM EDT Mon Aug 10 2026

.TONIGHT...SW winds around 10 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 6 seconds and SE 1 foot at 3 seconds. A slight chance of
showers after midnight.
.TUE...W winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds and W 1 foot at
3 seconds.
.TUE NIGHT...W winds 10 to 15 kt, becoming NW 5 to 10 kt after
midnight. Seas 2 to 3 ft. Wave Detail: W 3 ft at 5 seconds and N
1 foot at 3 seconds.
.WED...N winds around 5 kt, becoming S in the afternoon. Seas
around 2 ft. Wave Detail: S 2 ft at 6 seconds and N 1 foot at
2 seconds.
.WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 7 seconds and W 1 foot at 3 seconds.
.THU AND THU NIGHT...W 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 W 2 ft at
3 seconds. A chance of showers.
.FRI THROUGH SAT NIGHT...W 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.

$$

ANZ237-110900-
Block Island Sound-
405 PM EDT Mon Aug 10 2026

.TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 6 seconds and E 1 foot at 3 seconds. A slight chance of
showers after midnight.
.TUE...W winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
up to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: S
2 ft at 6 seconds and W 1 foot at 3 seconds.
.TUE NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas
around 2 ft. Wave Detail: S 2 ft at 6 seconds and NW 1 foot at
3 seconds.
.WED...N winds around 5 kt, becoming S in the afternoon. Seas
around 2 ft. Wave Detail: S 2 ft at 6 seconds and NW 1 foot at
2 seconds.
.WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail:
S 2 ft at 4 seconds and W 1 foot at 2 seconds.
.THU AND THU NIGHT...W 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 SE 1 foot at
2 seconds. A chance of showers through the night.
.FRI THROUGH SAT NIGHT...W 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.

$$

ANZ230-110900-
Boston Harbor-
405 PM EDT Mon Aug 10 2026

.TONIGHT...S winds 5 to 10 kt, becoming SW after midnight. Waves
around 2 ft this evening, then 1 foot or less.
.TUE...W winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft
in the afternoon.
.TUE NIGHT...NW winds 5 to 10 kt. Waves 1 foot or less.
.WED...NW winds around 5 kt, becoming E in the afternoon. Waves
1 foot or less.
.WED NIGHT...S winds 5 to 10 kt, becoming W after midnight. Waves
1 foot or less.
.THU AND THU NIGHT...W winds 5 to 10 kt. Waves around 2 ft. A
chance of showers.
.FRI THROUGH 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.

$$

ANZ236-110900-
Narragansett Bay-
405 PM EDT Mon Aug 10 2026

.TONIGHT...SW winds 5 to 10 kt. Waves around 2 ft.
.TUE...W winds 5 to 10 kt. Waves around 2 ft.
.TUE NIGHT...NW winds 5 to 10 kt. Waves around 2 ft.
.WED...N winds around 5 kt, becoming S in the afternoon. Waves
around 2 ft.
.WED NIGHT...SW winds 5 to 10 kt. Waves around 2 ft.
.THU AND THU NIGHT...W winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft. A chance of showers through the night.
.FRI THROUGH SAT NIGHT...W winds 5 to 10 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.

$$

ANZ280-110900-
Ocean Waters from the Merrimack River to Plymouth from 40 to
60 NM-
405 PM EDT Mon Aug 10 2026

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

$$

ANZ281-110900-
Ocean Waters from Provincetown to Nantucket from 20 to 60 NM-
405 PM EDT Mon Aug 10 2026

.TONIGHT...SW winds 5 to 10 kt, increasing to 10 to 15 kt after
midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 6 seconds and W
1 foot at 3 seconds. Patchy fog after midnight. A slight chance
of showers after midnight with vsby 1 NM or less.
.TUE...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft
at 5 seconds and E 1 foot at 8 seconds. Patchy fog in the morning
with vsby 1 NM or less.
.TUE NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas
2 to 3 ft. Wave Detail: SW 3 ft at 6 seconds and NW 1 foot at
3 seconds.
.WED...N winds around 5 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft
at 6 seconds and N 1 foot at 3 seconds.
.WED NIGHT AND THU...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds and N 1 foot at
4 seconds.
.THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 4 ft. Wave Detail: W 3 ft at 5 seconds and SE 1 foot at
10 seconds. A chance of showers.
.FRI...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. A chance of showers.
.FRI NIGHT THROUGH SAT NIGHT...W winds 15 to 20 kt with gusts up
to 25 kt. Seas 3 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.

$$

ANZ282-110900-
Ocean Waters from Marthas Vineyard to Nantucket from 25 to 60 NM-
405 PM EDT Mon Aug 10 2026

.TONIGHT...SW winds 5 to 10 kt, increasing to 10 to 15 kt after
midnight. Seas around 3 ft. Wave Detail: SW 3 ft at 5 seconds and
NE 1 foot at 2 seconds. Patchy fog after midnight. A slight
chance of showers after midnight with vsby 1 to 3 NM.
.TUE...W winds 10 to 15 kt. Seas around 3 ft. Wave Detail: SW
3 ft at 5 seconds and E 1 foot at 8 seconds.
.TUE NIGHT...W winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Seas around 3 ft. Wave Detail: W 3 ft at 5 seconds and
N 1 foot at 3 seconds.
.WED...NW winds around 5 kt, becoming NE in the afternoon. Seas
around 3 ft. Wave Detail: SW 2 ft at 6 seconds and N 1 foot at
4 seconds.
.WED NIGHT...E winds around 5 kt, becoming SW after midnight.
Seas 2 to 3 ft. Wave Detail: SW 3 ft at 6 seconds and E 1 foot at
8 seconds.
.THU...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 2 to 3 ft, building to 3 to 5 ft in the
afternoon. Wave Detail: SW 3 ft at 6 seconds and NW 1 foot at
3 seconds, becoming SW 3 ft at 6 seconds and NW 1 foot at
4 seconds. A chance of showers in the afternoon.
.THU NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of
showers.
.FRI...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. A chance of showers.
.FRI NIGHT THROUGH SAT NIGHT...W winds 10 to 15 kt with gusts up
to 20 kt. Seas 3 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.

$$

ANZ283-110900-
Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM-
405 PM EDT Mon Aug 10 2026

.TONIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas around 3 ft. Wave Detail: SW 3 ft at 5 seconds and
E 1 foot at 2 seconds. A chance of showers after midnight.
.TUE...W winds 10 to 15 kt. Seas around 3 ft. Wave Detail: SW
3 ft at 5 seconds and SE 1 foot at 9 seconds.
.TUE NIGHT...W winds 10 to 15 kt, becoming NW 5 to 10 kt after
midnight. Seas around 3 ft. Wave Detail: W 3 ft at 5 seconds and
N 1 foot at 3 seconds.
.WED...N winds 5 to 10 kt, becoming NE in the afternoon. Seas
around 3 ft. Wave Detail: SW 2 ft at 5 seconds and N 1 foot at
3 seconds.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW
3 ft at 7 seconds and SE 1 foot at 2 seconds.
.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 N 1 foot at
3 seconds. A chance of showers.
.FRI...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. A chance of showers.
.FRI NIGHT THROUGH SAT NIGHT...W winds 10 to 15 kt with gusts up
to 20 kt. Seas 3 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.

$$

For the latest updates...please visit our webpage at
www.weather.gov/boston

You can follow us on Facebook at
www.facebook.com/us.nationalweatherservice.boston.gov

You can follow us on Twitter at
@NWSBoston