398
FZUS51 KBOX 061703
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
103 PM EDT Mon Oct 6 2025

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

ANZ200-070600-
103 PM EDT Mon Oct 6 2025

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pres remains anchored over the waters south of Southern New
England through early next week. SW winds becoming breezy Tuesday
and Wednesday. Rain arrives late Tuesday continuing through
Wednesday.

$$

ANZ250-070600-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
103 PM EDT Mon Oct 6 2025

.THIS AFTERNOON...S winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at
11 seconds.
.TONIGHT...SW winds around 15 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
10 seconds.
.TUE...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 10 seconds.
.TUE NIGHT...SW winds 15 to 20 kt with gusts up to 30 kt. Seas
3 to 4 ft. Wave Detail: SW 4 ft at 4 seconds and E 1 foot at
10 seconds. Showers likely after midnight with vsby 1 to 3 NM.
.WED...SW winds 15 to 20 kt, becoming N in the afternoon. Gusts
up to 30 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 4 seconds
and SE 1 foot at 11 seconds. Showers. Vsby 1 to 3 NM.
.WED NIGHT...N winds 15 to 20 kt with gusts up to 30 kt. Seas
3 to 5 ft. Wave Detail: N 5 ft at 6 seconds. A chance of showers
in the evening with vsby 1 to 3 NM.
.THU...N winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
5 ft.
.THU NIGHT...N winds 5 to 10 kt. Seas 2 to 4 ft.
.FRI AND FRI 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.

$$

ANZ251-070600-
Massachusetts Bay and Ipswich Bay-
103 PM EDT Mon Oct 6 2025

.THIS AFTERNOON...S 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
11 seconds.
.TONIGHT...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
11 seconds.
.TUE...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft. Wave Detail: S 3 ft at 4 seconds and E 1 foot at
10 seconds.
.TUE 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 1 foot at
9 seconds. Showers after midnight with vsby 1 to 3 NM.
.WED...SW winds around 15 kt, becoming N in the afternoon. Gusts
up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds
and E 1 foot at 10 seconds. Showers. Vsby 1 to 3 NM.
.WED NIGHT...N winds 15 to 20 kt with gusts up to 30 kt. Seas
3 to 4 ft. Wave Detail: N 4 ft at 5 seconds. A chance of showers
in the evening.
.THU AND THU NIGHT...N winds 15 to 20 kt with gusts up to 25 kt,
becoming NW 5 to 10 kt. Seas 2 to 4 ft.
.FRI AND FRI 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.

$$

ANZ231-070600-
Cape Cod Bay-
103 PM EDT Mon Oct 6 2025

.THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: SW 1 foot at 2 seconds and E
1 foot at 10 seconds.
.TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SW 1 foot at 3 seconds and E 1 foot at
10 seconds.
.TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas around 2 ft, building to 3 to
4 ft in the afternoon. Wave Detail: SW 1 foot at 2 seconds and E
1 foot at 10 seconds, becoming SW 2 ft at 3 seconds and E 1 foot
at 10 seconds.
.TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 4 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at
10 seconds. Showers likely after midnight with vsby 1 to 3 NM.
.WED...SW winds around 15 kt with gusts up to 20 kt, becoming NW
with gusts up to 30 kt in the afternoon. Seas 2 to 3 ft. Wave
Detail: SW 2 ft at 3 seconds and E 1 foot at 10 seconds. Showers.
Vsby 1 to 3 NM.
.WED NIGHT...N winds 20 to 25 kt with gusts up to 30 kt. Seas
3 to 4 ft. Wave Detail: NW 4 ft at 4 seconds and N 4 ft at
7 seconds. Showers likely in the evening with vsby 1 to 3 NM.
.THU AND THU NIGHT...N winds 15 to 20 kt with gusts up to 30 kt,
diminishing to 5 to 10 kt. Seas 2 to 4 ft.
.FRI AND FRI NIGHT...SW winds 5 to 10 kt. Seas around 2 ft, then
1 foot or less.

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.

$$

ANZ254-070600-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
103 PM EDT Mon Oct 6 2025

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

$$

ANZ255-070600-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
103 PM EDT Mon Oct 6 2025

.THIS AFTERNOON...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: SW 2 ft at 4 seconds and E 2 ft at 11 seconds.
.TONIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW
2 ft at 4 seconds and E 2 ft at 11 seconds. Patchy fog. Vsby 1 to
3 NM.
.TUE...SW 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 E 2 ft at 10 seconds.
.TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and SE 1 foot at
9 seconds. A chance of showers after midnight.
.WED...SW winds 15 to 20 kt, becoming W in the afternoon. Gusts
up to 25 kt. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 6 seconds
and SE 1 foot at 10 seconds. Showers. Vsby 1 to 3 NM.
.WED NIGHT...N winds 20 to 25 kt, increasing to 25 to 30 kt after
midnight. Seas 4 to 6 ft. Wave Detail: NW 5 ft at 5 seconds and E
4 ft at 7 seconds. Showers likely in the evening with vsby 1 to
3 NM.
.THU...N winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to
6 ft.
.THU NIGHT...NE winds 15 to 20 kt. Seas 3 to 5 ft.
.FRI AND FRI NIGHT...SE winds 5 to 10 kt, becoming SW. 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.

$$

ANZ256-070600-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
103 PM EDT Mon Oct 6 2025

.THIS AFTERNOON...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: SW 2 ft at 4 seconds and E 2 ft at 11 seconds.
.TONIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW
2 ft at 4 seconds and E 2 ft at 11 seconds. Patchy fog. Vsby 1 NM
or less, increasing to 1 to 3 NM after midnight.
.TUE...SW 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 E 2 ft at 10 seconds.
Patchy fog in the afternoon with vsby 1 to 3 NM.
.TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 ft. Wave Detail: SW 5 ft at 5 seconds and SE 1 foot at
10 seconds. A chance of showers after midnight with vsby 1 to
3 NM.
.WED...SW winds 15 to 20 kt, becoming NW in the afternoon. Gusts
up to 25 kt. Seas 4 to 5 ft. Wave Detail: SW 5 ft at 6 seconds
and SE 1 foot at 9 seconds. Showers. Vsby 1 to 3 NM.
.WED NIGHT...N winds 20 to 25 kt, increasing to 25 to 30 kt after
midnight. Seas 4 to 6 ft. Wave Detail: NW 6 ft at 5 seconds and E
5 ft at 9 seconds. Showers likely in the evening with vsby 1 to
3 NM.
.THU...N winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to
6 ft.
.THU NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft.
.FRI AND FRI NIGHT...SE winds 5 to 10 kt, becoming SW. 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.

$$

ANZ232-070600-
Nantucket Sound-
103 PM EDT Mon Oct 6 2025

.THIS AFTERNOON...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 11 seconds.
.TONIGHT...SW winds around 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
11 seconds. Patchy fog after midnight with vsby 1 to 3 NM.
.TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW
3 ft at 4 seconds and E 1 foot at 10 seconds.
.TUE 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 1 foot at
10 seconds. Showers likely after midnight.
.WED...SW winds 15 to 20 kt, becoming NW in the afternoon. Gusts
up to 30 kt. Seas around 3 ft. Wave Detail: SW 3 ft at 4 seconds
and E 1 foot at 9 seconds. Showers. Vsby 1 to 3 NM.
.WED NIGHT...N winds 20 to 25 kt with gusts up to 30 kt. Seas
3 to 4 ft. Wave Detail: N 4 ft at 4 seconds and NE 2 ft at
8 seconds. A chance of showers in the evening with vsby 1 to
3 NM.
.THU AND THU NIGHT...N winds 20 to 25 kt with gusts up to 30 kt,
diminishing to 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft.
.FRI AND FRI NIGHT...S winds 5 to 10 kt, becoming SW. 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.

$$

ANZ233-070600-
Vineyard Sound-
103 PM EDT Mon Oct 6 2025

.THIS AFTERNOON...SW winds around 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot
at 10 seconds.
.TONIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and
SE 1 foot at 10 seconds.
.TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW
3 ft at 4 seconds and SE 1 foot at 10 seconds.
.TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and SE 1 foot at
9 seconds. Showers likely after midnight.
.WED...SW winds 15 to 20 kt, becoming NW in the afternoon. Gusts
up to 25 kt. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 5 seconds
and SE 1 foot at 9 seconds. Showers. Vsby 1 to 3 NM.
.WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas
around 3 ft. Wave Detail: N 2 ft at 5 seconds. Showers likely in
the evening with vsby 1 to 3 NM.
.THU THROUGH FRI NIGHT...SW winds 15 to 20 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.

$$

ANZ234-070600-
Buzzards Bay-
103 PM EDT Mon Oct 6 2025

.THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: SW 1 foot at 3 seconds and SE 1 foot
at 10 seconds.
.TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: SW 1 foot at 4 seconds and SE 1 foot at
10 seconds.
.TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: SW
3 ft at 4 seconds and SE 1 foot at 10 seconds. Patchy fog in the
afternoon with vsby 1 to 3 NM.
.TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and SE 1 foot at
10 seconds. Showers likely after midnight with vsby 1 to 3 NM.
.WED...SW winds 15 to 20 kt, becoming NW in the afternoon. Gusts
up to 25 kt. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 5 seconds
and SE 1 foot at 9 seconds. Showers. Vsby 1 to 3 NM.
.WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas
around 3 ft. Wave Detail: NW 2 ft at 5 seconds and NE 2 ft at
8 seconds. Showers likely in the evening with vsby 1 to 3 NM.
.THU THROUGH FRI NIGHT...SW winds 15 to 20 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.

$$

ANZ235-070600-
Rhode Island Sound-
103 PM EDT Mon Oct 6 2025

.THIS AFTERNOON...SW winds around 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot
at 10 seconds.
.TONIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and
SE 1 foot at 10 seconds.
.TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SW
3 ft at 4 seconds and SE 1 foot at 10 seconds. Patchy fog in the
afternoon with vsby 1 to 3 NM.
.TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and SE 1 foot at
10 seconds. Patchy fog in the evening. Showers likely after
midnight. Vsby 1 to 3 NM.
.WED...SW winds 15 to 20 kt, becoming NW in the afternoon. Gusts
up to 25 kt. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 5 seconds
and SE 1 foot at 9 seconds. Showers. Vsby 1 to 3 NM.
.WED NIGHT...N winds 15 to 20 kt, increasing to 20 to 25 kt after
midnight. Gusts up to 30 kt. Seas 3 to 4 ft. Wave Detail: NW 4 ft
at 5 seconds and SE 3 ft at 9 seconds. A chance of showers in the
evening with vsby 1 to 3 NM.
.THU AND THU NIGHT...N winds 15 to 20 kt with gusts up to 25 kt,
becoming NE 5 to 10 kt. Seas 2 to 4 ft.
.FRI AND FRI NIGHT...S winds 5 to 10 kt, becoming SW. 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.

$$

ANZ237-070600-
Block Island Sound-
103 PM EDT Mon Oct 6 2025

.THIS AFTERNOON...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 SE 2 ft
at 11 seconds.
.TONIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft. Wave Detail: SW 2 ft at 3 seconds and
SE 1 foot at 11 seconds.
.TUE...SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft. Wave Detail: SW 3 ft at 4 seconds and SE 1 foot at
10 seconds. Patchy fog in the afternoon with vsby 1 to 3 NM.
.TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and SE 1 foot at
10 seconds. Patchy fog in the evening. Showers after midnight.
Vsby 1 to 3 NM.
.WED...SW winds 15 to 20 kt, becoming NW in the afternoon. Gusts
up to 25 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 5 seconds
and SE 1 foot at 9 seconds. Showers. Vsby 1 to 3 NM.
.WED NIGHT...N winds 15 to 20 kt, increasing to 20 to 25 kt after
midnight. Gusts up to 30 kt. Seas 3 to 4 ft. Wave Detail: NE 4 ft
at 9 seconds and NW 3 ft at 5 seconds. A chance of showers in the
evening with vsby 1 to 3 NM.
.THU AND THU NIGHT...N winds 15 to 20 kt with gusts up to 25 kt,
becoming NE 5 to 10 kt. Seas 2 to 4 ft.
.FRI AND FRI NIGHT...SE winds 5 to 10 kt, becoming SW. 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.

$$

ANZ230-070600-
Boston Harbor-
103 PM EDT Mon Oct 6 2025

.THIS AFTERNOON...SW winds 10 to 15 kt. Waves around 2 ft.
.TONIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Waves around 2 ft.
.TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Waves around 2 ft.
.TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Waves
around 2 ft. Showers after midnight with vsby 1 to 3 NM.
.WED...SW winds 10 to 15 kt, becoming NW in the afternoon. Gusts
up to 25 kt. Waves around 2 ft. Showers. Vsby 1 to 3 NM.
.WED NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Waves
around 2 ft. A chance of showers in the evening.
.THU THROUGH FRI 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.

$$

ANZ236-070600-
Narragansett Bay-
103 PM EDT Mon Oct 6 2025

.THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft.
.TONIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Waves around 2 ft.
.TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Gusts up to 25 kt. Waves 2 to 3 ft.
.TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Waves
2 to 3 ft. Patchy fog in the evening. Showers after midnight.
Vsby 1 to 3 NM.
.WED...SW winds 10 to 15 kt, becoming NW in the afternoon. Gusts
up to 20 kt. Waves 2 to 3 ft. Showers. Vsby 1 to 3 NM.
.WED NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Waves
2 to 3 ft. A chance of showers in the evening.
.THU THROUGH FRI NIGHT...SW winds 10 to 15 kt with gusts up to
20 kt. Waves 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.

$$

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