947
FZUS51 KBOX 161104
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
703 AM EDT Sun Aug 16 2026

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

ANZ200-170000-
703 AM EDT Sun Aug 16 2026

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pres shifts east of the waters Sun night. Low pres then
approaches from the west bringing gusty S winds and building seas
that have prompted Small Craft Advisories late Sun night into Mon.
The associated cold front crosses the region late Mon into Mon night.
High pres returns Tue through the middle of next week.

$$

ANZ250-170000-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
703 AM EDT Sun Aug 16 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...

.TODAY...NE winds around 5 kt, becoming SE 10 to 15 kt with gusts
up to 20 kt this afternoon. Seas 1 foot or less, then 2 to 3 ft
this afternoon. Wave Detail: NE 1 foot at 3 seconds and SW 1 foot
at 3 seconds, becoming S 1 foot at 2 seconds and NE 1 foot at
3 seconds.
.TONIGHT...S winds around 15 kt with gusts up to 25 kt. Seas
around 3 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at
3 seconds.
.MON...S winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to
4 ft. Wave Detail: SE 3 ft at 4 seconds and SE 1 foot at
10 seconds. Patchy fog. A chance of showers in the morning, then
showers likely in the afternoon with vsby 1 to 3 NM.
.MON NIGHT...E winds 10 to 15 kt with gusts up to 20 kt, becoming
N 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: SE 3 ft
at 5 seconds and SE 1 foot at 10 seconds. Patchy fog in the
evening. A chance of showers in the evening with vsby 1 to 3 NM.
.TUE...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 9 seconds and NW 2 ft at 4 seconds.
.TUE NIGHT...E winds around 5 kt, becoming SW around 5 kt after
midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and
SW 2 ft at 6 seconds.
.WED AND WED NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt. Seas
2 to 3 ft.
.THU AND THU NIGHT...NW winds 5 to 10 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.

$$

ANZ251-170000-
Massachusetts Bay and Ipswich Bay-
703 AM EDT Sun Aug 16 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...

.TODAY...NE winds around 5 kt, becoming SE 10 to 15 kt with gusts
up to 20 kt this afternoon. Seas 1 foot or less, then 2 to 3 ft
this afternoon. Wave Detail: SW 1 foot at 2 seconds and NE 1 foot
at 3 seconds, becoming SE 1 foot at 3 seconds and E 1 foot at
10 seconds.
.TONIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft. Wave Detail: SE 2 ft at 3 seconds and E 1 foot at
10 seconds. A chance of showers after midnight.
.MON...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 4 seconds and SE 1 foot at
10 seconds. Patchy fog. A chance of showers in the morning.
Showers likely in the afternoon.
.MON NIGHT...NE winds 5 to 10 kt, becoming N after midnight. Seas
2 to 3 ft. Wave Detail: SE 2 ft at 5 seconds and SE 1 foot at
10 seconds. Patchy fog in the evening. A chance of showers in the
evening.
.TUE...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft
at 5 seconds and W 1 foot at 3 seconds.
.TUE NIGHT...SE winds around 5 kt, becoming SW after midnight.
Seas around 2 ft. Wave Detail: E 2 ft at 9 seconds and NE 1 foot
at 4 seconds.
.WED AND WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
.THU...N winds 5 to 10 kt. Seas around 2 ft. A chance of showers.
.THU NIGHT...W winds 5 to 10 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.

$$

ANZ231-170000-
Cape Cod Bay-
703 AM EDT Sun Aug 16 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...

.TODAY...NE winds around 5 kt, becoming S 10 to 15 kt with gusts
up to 20 kt this afternoon. Seas 1 foot or less, then around 2 ft
this afternoon. Wave Detail: S 1 foot at 3 seconds and N 1 foot
at 4 seconds, becoming NE 1 foot at 3 seconds and S 1 foot at
3 seconds.
.TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: S 1 foot at 2 seconds and NE 1 foot at
3 seconds.
.MON...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: SE 2 ft at 3 seconds and SE 1 foot at
11 seconds. A chance of showers in the morning, then showers
likely in the afternoon. Patchy fog in the afternoon with vsby
1 to 3 NM.
.MON NIGHT...E winds 5 to 10 kt with gusts up to 20 kt, becoming
N after midnight. Seas around 2 ft. Wave Detail: SE 2 ft at
4 seconds and SE 2 ft at 10 seconds. Patchy fog in the evening. A
chance of showers in the evening.
.TUE...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 2 ft
at 3 seconds and SE 1 foot at 10 seconds.
.TUE NIGHT...NE winds around 5 kt, becoming SW around 5 kt after
midnight. Seas around 2 ft. Wave Detail: N 1 foot at 3 seconds
and SE 1 foot at 11 seconds.
.WED AND WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
.THU...NW winds around 5 kt. Seas 1 foot or less. A chance of
showers.
.THU NIGHT...W winds 5 to 10 kt. Seas 1 foot or less. 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.

$$

ANZ254-170000-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 NM-
703 AM EDT Sun Aug 16 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...

.TODAY...NE winds around 5 kt, becoming S with gusts up to 20 kt
this afternoon. Seas around 2 ft. Wave Detail: S 2 ft at
6 seconds and N 1 foot at 4 seconds.
.TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: S 2 ft at 4 seconds and NE 1 foot at
3 seconds.
.MON...S winds 10 to 15 kt, becoming SE 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SE
4 ft at 5 seconds and SE 1 foot at 9 seconds. A chance of showers
in the morning, then showers likely in the afternoon. Patchy fog
in the afternoon with vsby 1 to 3 NM.
.MON NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt,
becoming N after midnight. Seas 3 to 5 ft. Wave Detail: SE 4 ft
at 5 seconds and SE 3 ft at 10 seconds. A chance of showers.
Patchy fog in the evening with vsby 1 to 3 NM.
.TUE...N winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
4 ft. Wave Detail: S 4 ft at 8 seconds and NW 3 ft at 6 seconds.
.TUE NIGHT...N winds 5 to 10 kt, becoming W after midnight. Seas
2 to 4 ft. Wave Detail: SE 3 ft at 8 seconds and SW 2 ft at
7 seconds.
.WED AND WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.THU AND THU NIGHT...W winds 5 to 10 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.

$$

ANZ255-170000-
Coastal Waters extending out to 25 NM South of Marthas Vineyard
and Nantucket-
703 AM EDT Sun Aug 16 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
MONDAY NIGHT...

.TODAY...SE winds 5 to 10 kt. Seas 1 foot or less, then around
2 ft this afternoon. Wave Detail: NE 1 foot at 4 seconds and S
1 foot at 5 seconds, becoming S 2 ft at 5 seconds and NE 1 foot
at 4 seconds.
.TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: S 3 ft at 4 seconds and NE 1 foot at
4 seconds.
.MON...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. Wave Detail: SE 5 ft at 7 seconds and E 2 ft at 4 seconds.
Patchy fog. A chance of showers in the morning, then showers
likely in the afternoon with vsby 1 to 3 NM.
.MON NIGHT...N winds 10 to 15 kt. Gusts up to 25 kt in the
evening. Seas 4 to 6 ft. Wave Detail: S 4 ft at 7 seconds and SE
4 ft at 8 seconds. Patchy fog in the evening. A chance of showers
in the evening.
.TUE...N winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: NW 4 ft
at 7 seconds and S 4 ft at 8 seconds.
.TUE NIGHT...N winds 5 to 10 kt, becoming W after midnight. Seas
2 to 3 ft. Wave Detail: S 3 ft at 7 seconds and SE 3 ft at
8 seconds.
.WED AND WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.THU AND THU NIGHT...SW winds around 10 kt, becoming NW. 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.

$$

ANZ256-170000-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 NM South of Block Island-
703 AM EDT Sun Aug 16 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
MONDAY NIGHT...

.TODAY...E winds around 5 kt, becoming S this afternoon. Seas
1 foot or less, then around 2 ft this afternoon. Wave Detail: E
1 foot at 3 seconds and S 1 foot at 5 seconds, becoming S 2 ft at
6 seconds and E 1 foot at 2 seconds.
.TONIGHT...S winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. Gusts up to 25 kt. Seas 2 to 3 ft, building to 3 to
5 ft after midnight. Wave Detail: SE 2 ft at 4 seconds and SE
1 foot at 9 seconds, becoming S 4 ft at 4 seconds and SE 1 foot
at 9 seconds. A chance of showers after midnight.
.MON...S winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. Wave Detail: SE 5 ft at 5 seconds and SE 4 ft at
10 seconds. Patchy fog. Showers likely in the morning. A chance
of showers in the afternoon. Vsby 1 to 3 NM.
.MON NIGHT...N winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 4 to 5 ft. Wave Detail: SE 5 ft at 15 seconds and S
4 ft at 6 seconds.
.TUE...N winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 7 seconds and
N 1 foot at 3 seconds.
.TUE NIGHT...SW winds around 5 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 7 seconds and NE 1 foot at 3 seconds.
.WED AND WED NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft.
.THU AND THU NIGHT...W winds 5 to 10 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.

$$

ANZ232-170000-
Nantucket Sound-
703 AM EDT Sun Aug 16 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...

.TODAY...E winds around 5 kt, becoming S 10 to 15 kt this
afternoon. Seas 1 foot or less, then around 2 ft this afternoon.
Wave Detail: NE 1 foot at 3 seconds and SW 1 foot at 3 seconds,
becoming S 2 ft at 3 seconds and NE 1 foot at 3 seconds.
.TONIGHT...S 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 1 foot at 4 seconds.
.MON...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft. Wave Detail: SE 3 ft at 4 seconds and SE 1 foot at
10 seconds. A chance of showers in the morning, then showers
likely in the afternoon. Patchy fog in the afternoon with vsby
1 to 3 NM.
.MON NIGHT...E winds 10 to 15 kt with gusts up to 20 kt, becoming
N after midnight. Seas 2 to 3 ft. Wave Detail: SE 2 ft at
5 seconds and SE 2 ft at 10 seconds. Patchy fog in the evening. A
chance of showers in the evening.
.TUE...N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: NE 2 ft at 3 seconds and W 2 ft at 7 seconds.
.TUE NIGHT...N winds 5 to 10 kt, becoming W after midnight. Seas
around 2 ft. Wave Detail: NE 1 foot at 4 seconds and SW 1 foot at
6 seconds.
.WED AND WED NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt.
Seas around 2 ft.
.THU AND THU NIGHT...W winds 5 to 10 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.

$$

ANZ233-170000-
Vineyard Sound-
703 AM EDT Sun Aug 16 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
MONDAY NIGHT...

.TODAY...E winds around 5 kt, becoming S 10 to 15 kt this
afternoon. Seas 1 foot or less, then around 2 ft this afternoon.
Wave Detail: E 1 foot at 2 seconds and SW 1 foot at 4 seconds,
becoming NE 1 foot at 3 seconds and SW 1 foot at 4 seconds.
.TONIGHT...S 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 E 1 foot at 4 seconds.
A chance of showers after midnight.
.MON...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft. Wave Detail: SE 4 ft at 5 seconds and SE 2 ft at
10 seconds. Patchy fog. Showers likely. Vsby 1 to 3 NM in the
afternoon.
.MON NIGHT...NE winds around 10 kt with gusts up to 20 kt,
becoming N after midnight. Seas 2 to 4 ft. Wave Detail: SW 3 ft
at 7 seconds and SE 3 ft at 12 seconds. Patchy fog in the
evening.
.TUE...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft
at 7 seconds and SE 3 ft at 8 seconds.
.TUE NIGHT...S winds around 5 kt, becoming SW after midnight.
Seas around 2 ft. Wave Detail: SW 2 ft at 6 seconds and SE 2 ft
at 9 seconds.
.WED AND WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft.
.THU AND THU NIGHT...W winds 5 to 10 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.

$$

ANZ234-170000-
Buzzards Bay-
703 AM EDT Sun Aug 16 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
MONDAY NIGHT...

.TODAY...NE winds around 5 kt, becoming S 10 to 15 kt this
afternoon. Seas 1 foot or less, then around 2 ft this afternoon.
Wave Detail: E 1 foot at 3 seconds and S 1 foot at 3 seconds,
becoming NE 1 foot at 3 seconds and S 1 foot at 3 seconds.
.TONIGHT...S 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 SE 1 foot at
10 seconds. A chance of showers after midnight.
.MON...S winds 15 to 20 kt, becoming SE 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SE
3 ft at 5 seconds and SE 2 ft at 10 seconds. Patchy fog. Showers
likely. Vsby 1 to 3 NM in the afternoon.
.MON NIGHT...N winds around 10 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and SW
2 ft at 7 seconds. Patchy fog in the evening.
.TUE...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 2 ft
at 7 seconds and SE 2 ft at 7 seconds.
.TUE NIGHT...S winds around 5 kt, becoming SW after midnight.
Seas around 2 ft. Wave Detail: SE 2 ft at 9 seconds and NE 1 foot
at 2 seconds.
.WED AND WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft.
.THU AND THU NIGHT...W winds 5 to 10 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.

$$

ANZ235-170000-
Rhode Island Sound-
703 AM EDT Sun Aug 16 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
MONDAY NIGHT...

.TODAY...NE winds around 5 kt, becoming S this afternoon. Seas
1 foot or less, then around 2 ft this afternoon. Wave Detail: E
1 foot at 3 seconds and S 1 foot at 4 seconds, becoming S 2 ft at
5 seconds and E 1 foot at 2 seconds.
.TONIGHT...S winds 10 to 15 kt, increasing to 15 to 20 kt after
midnight. Seas 2 to 4 ft. Wave Detail: S 4 ft at 4 seconds and SE
1 foot at 9 seconds. A chance of showers after midnight.
.MON...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. Wave Detail: SE 5 ft at 6 seconds and SE 4 ft at
10 seconds. Patchy fog. Showers likely. Vsby 1 to 3 NM in the
morning.
.MON NIGHT...N winds around 10 kt. Seas 3 to 5 ft. Wave Detail:
SE 5 ft at 13 seconds and SE 4 ft at 6 seconds.
.TUE...N winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: S 4 ft at
7 seconds and NE 1 foot at 3 seconds.
.TUE NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S
3 ft at 7 seconds and NE 1 foot at 3 seconds.
.WED AND WED NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt.
Seas 2 to 3 ft.
.THU AND THU NIGHT...W winds 5 to 10 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.

$$

ANZ237-170000-
Block Island Sound-
703 AM EDT Sun Aug 16 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
MONDAY NIGHT...

.TODAY...NE winds around 5 kt, becoming S this afternoon. Seas
1 foot or less, then around 2 ft this afternoon. Wave Detail: E
1 foot at 3 seconds and S 1 foot at 6 seconds, becoming S 2 ft at
6 seconds and E 1 foot at 3 seconds.
.TONIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: S 3 ft at 4 seconds and SE 1 foot at
9 seconds. Patchy fog after midnight. Showers likely after
midnight.
.MON...SE winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: SE
4 ft at 5 seconds and SE 4 ft at 8 seconds. Patchy fog. Showers
likely, mainly in the morning with vsby 1 to 3 NM.
.MON NIGHT...N winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE
4 ft at 6 seconds and SE 4 ft at 13 seconds.
.TUE AND TUE NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: S 3 ft at 7 seconds and E 1 foot at 4 seconds.
.WED AND WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 7 seconds and NE 1 foot at 6 seconds.
.THU...W winds 5 to 10 kt. Seas around 2 ft. A chance of showers.
.THU NIGHT...NW winds 5 to 10 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.

$$

ANZ230-170000-
Boston Harbor-
703 AM EDT Sun Aug 16 2026

.TODAY...NE winds around 5 kt, becoming SE with gusts up to 20 kt
this afternoon. Waves 1 foot or less, then around 2 ft this
afternoon.
.TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Waves
around 2 ft. A chance of showers after midnight.
.MON...SE winds 10 to 15 kt with gusts up to 20 kt. Waves around
2 ft. Patchy fog. Showers likely.
.MON NIGHT...NE winds 5 to 10 kt, becoming N after midnight.
Waves 1 foot or less. Patchy fog in the evening. A chance of
showers in the evening.
.TUE...N winds 5 to 10 kt, becoming NE in the afternoon. Waves
1 foot or less.
.TUE NIGHT...SE winds around 5 kt, becoming SW after midnight.
Waves 1 foot or less.
.WED AND WED NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less.
.THU AND THU NIGHT...N winds 5 to 10 kt, becoming W. Waves 1 foot
or less. 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.

$$

ANZ236-170000-
Narragansett Bay-
703 AM EDT Sun Aug 16 2026

.TODAY...NE winds around 5 kt, becoming S 10 to 15 kt with gusts
up to 20 kt this afternoon. Waves 1 foot or less, then around
2 ft this afternoon.
.TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to
3 ft. Patchy fog after midnight. Showers likely after midnight.
.MON...SE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to
4 ft. Patchy fog. Showers likely.
.MON NIGHT...N winds 5 to 10 kt. Waves 2 to 3 ft.
.TUE...N winds 5 to 10 kt, becoming NE in the afternoon. Waves
around 2 ft.
.TUE NIGHT...SW winds around 5 kt. Waves around 2 ft.
.WED AND WED NIGHT...SW winds 10 to 15 kt, diminishing to 5 to
10 kt. Waves around 2 ft.
.THU AND THU NIGHT...NW winds 5 to 10 kt. Waves 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.

$$

ANZ280-170000-
Ocean Waters from the Merrimack River to Plymouth from 40 to
60 NM-
703 AM EDT Sun Aug 16 2026

.TODAY...NE winds 5 to 10 kt, becoming S this afternoon. Seas
around 2 ft. Wave Detail: SW 2 ft at 4 seconds and NE 1 foot at
3 seconds.
.TONIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: S 3 ft at 4 seconds and N 1 foot at 3 seconds.
.MON...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: SE 3 ft at 4 seconds and SE 1 foot at
9 seconds. Patchy fog. A chance of showers in the morning, then
showers likely in the afternoon with vsby 1 to 3 NM.
.MON NIGHT...SE winds 10 to 15 kt, becoming NE after midnight.
Gusts up to 20 kt. Seas 4 to 5 ft. Wave Detail: SE 3 ft at
5 seconds and SE 2 ft at 10 seconds. Showers likely, mainly in
the evening. Patchy fog in the evening with vsby 1 to 3 NM.
.TUE...N winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas 3 to 4 ft. Wave Detail: N 4 ft at 5 seconds and SE 4 ft at
8 seconds.
.TUE NIGHT...N winds 5 to 10 kt, becoming W after midnight. Seas
3 to 4 ft. Wave Detail: SE 4 ft at 8 seconds and SW 3 ft at
7 seconds.
.WED AND WED NIGHT...SW winds 5 to 10 kt, increasing to 10 to
15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
.THU AND THU NIGHT...W winds 5 to 10 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.

$$

ANZ281-170000-
Ocean Waters from Provincetown to Nantucket from 20 to 60 NM-
703 AM EDT Sun Aug 16 2026

.TODAY...NE winds around 5 kt, becoming S this afternoon. Seas
around 2 ft. Wave Detail: N 1 foot at 4 seconds and S 1 foot at
5 seconds.
.TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: S 2 ft at 4 seconds and N 1 foot at 3 seconds.
.MON...SE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft, building to 4 to 6 ft in the afternoon. Wave Detail: S 3 ft
at 4 seconds and NE 1 foot at 3 seconds, becoming SE 4 ft at
5 seconds and SE 1 foot at 10 seconds. A chance of showers in the
morning, then showers likely in the afternoon. Patchy fog in the
afternoon with vsby 1 to 3 NM.
.MON NIGHT...SE winds 10 to 15 kt, becoming NE after midnight.
Gusts up to 25 kt. Seas 5 to 6 ft. Wave Detail: S 5 ft at
8 seconds and SE 2 ft at 5 seconds. Showers likely, mainly in the
evening. Patchy fog in the evening with vsby 1 to 3 NM.
.TUE...N winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to
6 ft. Wave Detail: S 6 ft at 8 seconds and W 5 ft at 7 seconds.
.TUE NIGHT...NW winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: W
4 ft at 6 seconds and S 4 ft at 7 seconds.
.WED AND WED NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt. Seas
2 to 3 ft.
.THU AND THU NIGHT...SW winds 5 to 10 kt, becoming W. 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.

$$

ANZ282-170000-
Ocean Waters from Marthas Vineyard to Nantucket from 25 to 60 NM-
703 AM EDT Sun Aug 16 2026

.TODAY...NE winds around 5 kt, becoming SE this afternoon. Seas
around 2 ft. Wave Detail: S 2 ft at 6 seconds and NE 1 foot at
4 seconds.
.TONIGHT...S winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts up to 20 kt after midnight. Seas 2 to 4 ft. Wave Detail: S
2 ft at 5 seconds and N 1 foot at 4 seconds.
.MON...S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to
6 ft. Wave Detail: SE 5 ft at 5 seconds and SE 1 foot at
9 seconds. A chance of showers in the morning, then showers
likely in the afternoon. Patchy fog in the afternoon with vsby
1 to 3 NM.
.MON NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt,
becoming NW after midnight. Seas 5 to 6 ft. Wave Detail: S 6 ft
at 7 seconds and E 2 ft at 3 seconds. Patchy fog in the evening.
A chance of showers in the evening.
.TUE...N winds 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: SW 5 ft
at 7 seconds and S 5 ft at 8 seconds.
.TUE NIGHT...N winds 5 to 10 kt, becoming NW after midnight. Seas
3 to 4 ft. Wave Detail: S 4 ft at 7 seconds and SE 3 ft at
8 seconds.
.WED AND WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.THU AND THU NIGHT...SW winds 5 to 10 kt, becoming NW. Seas
around 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.

$$

ANZ283-170000-
Ocean Waters from Montauk NY to Marthas Vineyard from 25 to 60 NM-
703 AM EDT Sun Aug 16 2026

.TODAY...S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S
2 ft at 6 seconds and NE 1 foot at 3 seconds.
.TONIGHT...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft, building to 3 to 5 ft after midnight. Wave Detail: S 2 ft
at 4 seconds and SE 1 foot at 9 seconds, becoming S 3 ft at
4 seconds and SE 1 foot at 8 seconds. A chance of showers after
midnight.
.MON...S winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to
6 ft. Wave Detail: S 5 ft at 5 seconds and E 2 ft at 5 seconds.
Patchy fog. Showers likely in the morning. A chance of showers in
the afternoon. Vsby 1 to 3 NM.
.MON NIGHT...NW winds 10 to 15 kt. Gusts up to 25 kt in the
evening. Seas 4 to 6 ft. Wave Detail: S 5 ft at 6 seconds.
.TUE...N winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. Seas 3 to 5 ft. Wave Detail: S 4 ft at 7 seconds and
NW 4 ft at 7 seconds.
.TUE NIGHT...W winds around 5 kt. Seas around 3 ft. Wave Detail:
S 3 ft at 7 seconds and NE 1 foot at 4 seconds.
.WED AND WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.THU AND THU NIGHT...SW winds around 10 kt, becoming NW. 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.

$$

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