839
FZUS51 KBOX 051706
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
105 PM EDT Wed Jun 5 2024

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

ANZ200-060600-
105 PM EDT Wed Jun 5 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pres moves S of the waters today. A frontal systems lifts into
and through much of southern New England late tonight through Thu.
We remain unsettled late the week through the weekend with a broad
low overhead. This may linger into early next week.

$$

ANZ250-060600-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
105 PM EDT Wed Jun 5 2024

.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 S 1 foot at
7 seconds. A slight chance of showers with isolated tstms.
.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 1 foot at
8 seconds. Areas of fog after midnight with vsby 1 NM or less.
.THU...S winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot at
9 seconds. Areas of fog. A chance of showers in the morning, then
showers likely in the afternoon. Vsby 1 NM or less.
.THU NIGHT...SE winds 5 to 10 kt, becoming E after midnight. Seas
2 to 3 ft. Wave Detail: SE 2 ft at 4 seconds and SE 2 ft at
7 seconds. Areas of fog. A chance of showers. Vsby 1 NM or less.
.FRI...NW winds 5 to 10 kt, becoming S in the afternoon. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and E 2 ft at
9 seconds. Areas of fog in the morning with vsby 1 to 3 NM.
.FRI NIGHT...S winds around 10 kt, becoming W after midnight.
Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and E 2 ft at
9 seconds.
.SAT AND SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.SUN AND SUN NIGHT...SW winds around 10 kt. Seas 2 to 3 ft. A
chance of showers.

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.

$$

ANZ251-060600-
Massachusetts Bay and Ipswich Bay-
105 PM EDT Wed Jun 5 2024

.THIS AFTERNOON...S winds around 10 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: SW 1 foot at 2 seconds and SE
1 foot at 4 seconds. A slight chance of showers with isolated
tstms.
.TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming
S 5 to 10 kt after midnight. Seas around 2 ft. Wave Detail: S
2 ft at 3 seconds and E 1 foot at 8 seconds. Areas of fog after
midnight with vsby 1 NM or less.
.THU...SE winds 5 to 10 kt. Gusts up to 20 kt in the afternoon.
Seas around 2 ft. Wave Detail: SE 2 ft at 3 seconds and W 1 foot
at 2 seconds. Areas of fog. A chance of showers in the morning.
Showers likely in the afternoon. Vsby 1 NM or less, increasing to
1 to 3 NM in the afternoon.
.THU NIGHT...E winds 5 to 10 kt, becoming NE after midnight. Seas
around 2 ft. Wave Detail: SE 2 ft at 4 seconds and SE 2 ft at
7 seconds. Areas of fog. A chance of showers. Vsby 1 to 3 NM.
.FRI...NW winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 8 seconds and E 2 ft at
9 seconds. A chance of showers. Areas of fog in the morning with
vsby 1 to 3 NM.
.FRI NIGHT...S winds 5 to 10 kt, becoming W after midnight. Seas
around 2 ft. Wave Detail: E 2 ft at 9 seconds and S 2 ft at
9 seconds.
.SAT...SW winds 5 to 10 kt. Seas around 2 ft. A chance of
showers.
.SAT NIGHT...SW winds around 10 kt. Seas around 2 ft.
.SUN AND SUN NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. A
chance of showers.

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.

$$

ANZ231-060600-
Cape Cod Bay-
105 PM EDT Wed Jun 5 2024

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

$$

ANZ254-060600-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
105 PM EDT Wed Jun 5 2024

.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 4 seconds and S 1 foot at
8 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 1 foot at
8 seconds. Areas of fog. Vsby 1 NM or less.
.THU...S winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 2 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and
S 2 ft at 7 seconds. Areas of fog. A chance of showers in the
morning. Showers in the afternoon. Vsby 1 NM or less.
.THU NIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: S
4 ft at 7 seconds and SW 3 ft at 4 seconds. Areas of fog. A
chance of showers. Vsby 1 NM or less.
.FRI AND FRI NIGHT...SW winds 5 to 10 kt. Seas 3 to 5 ft. Wave
Detail: S 4 ft at 8 seconds and W 1 foot at 3 seconds.
.SAT THROUGH SUN...SW 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 SW 2 ft at
4 seconds.
.SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 4 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.

$$

ANZ255-060600-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
105 PM EDT Wed Jun 5 2024

.THIS AFTERNOON...SW winds 10 to 15 kt. Seas around 2 ft. Wave
Detail: SW 2 ft at 4 seconds and NE 1 foot at 4 seconds. Areas of
fog. Vsby 1 NM or less.
.TONIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E
1 foot at 8 seconds. Areas of fog. A chance of showers after
midnight. Vsby 1 NM or less.
.THU...S winds 15 to 20 kt. Seas 2 to 3 ft, building to 3 to 5 ft
in the afternoon. Wave Detail: S 3 ft at 5 seconds and E 1 foot
at 8 seconds, becoming S 5 ft at 7 seconds and E 1 foot at
9 seconds. Areas of fog. Showers. Vsby 1 NM or less.
.THU NIGHT...SW 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 S 1 foot at
4 seconds. Areas of fog. A chance of showers. Vsby 1 NM or less.
.FRI...SW winds 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: S 6 ft
at 8 seconds and E 1 foot at 9 seconds. Areas of fog in the
morning with vsby 1 to 3 NM.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 3 to 5 ft. Wave Detail: S
5 ft at 8 seconds and E 1 foot at 9 seconds.
.SAT THROUGH SUN...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 5 ft.
.SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas
3 to 4 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.

$$

ANZ256-060600-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
105 PM EDT Wed Jun 5 2024

.THIS AFTERNOON...SW winds 10 to 15 kt. Seas around 2 ft. Wave
Detail: S 2 ft at 5 seconds and S 1 foot at 8 seconds. Areas of
fog. Vsby 1 to 3 NM.
.TONIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 4 seconds and S 1 foot at 8 seconds. Areas of fog. A
chance of showers after midnight. Vsby 1 NM or less.
.THU...S winds 15 to 20 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft
at 7 seconds and E 1 foot at 8 seconds. Areas of fog. Showers
likely in the morning. A chance of showers in the afternoon. Vsby
1 NM or less.
.THU NIGHT...SW 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 E 1 foot at
9 seconds. Areas of fog. A chance of showers. Vsby 1 NM or less.
.FRI AND FRI NIGHT...W winds 10 to 15 kt. Seas 4 to 6 ft. Wave
Detail: S 5 ft at 8 seconds and E 1 foot at 9 seconds.
.SAT AND SAT NIGHT...SW 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 SW 1 foot at
3 seconds.
.SUN AND SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 3 to 4 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.

$$

ANZ232-060600-
Nantucket Sound-
105 PM EDT Wed Jun 5 2024

.THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and NE 1 foot
at 4 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
E 1 foot at 8 seconds. Areas of fog. A chance of showers after
midnight. Vsby 1 to 3 NM, decreasing to 1 NM or less after
midnight.
.THU...S winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and
SW 2 ft at 3 seconds. Areas of fog. Showers. Vsby 1 NM or less.
.THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave
Detail: S 2 ft at 4 seconds and S 2 ft at 7 seconds. Areas of
fog. A chance of showers. Vsby 1 to 3 NM, decreasing to 1 NM or
less after midnight.
.FRI AND FRI NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: SW 2 ft at 3 seconds and S 2 ft at 8 seconds.
.SAT THROUGH SUN...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 S 2 ft at
8 seconds.
.SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 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.

$$

ANZ233-060600-
Vineyard Sound-
105 PM EDT Wed Jun 5 2024

.THIS AFTERNOON...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and S 1 foot
at 8 seconds.
.TONIGHT...SW winds around 10 kt. Seas around 2 ft. Wave Detail:
SW 2 ft at 4 seconds and E 1 foot at 8 seconds. Areas of fog. A
chance of showers after midnight. Vsby 1 to 3 NM, decreasing to
1 NM or less after midnight.
.THU...S 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 E 1 foot at 8 seconds.
Areas of fog. Showers. Vsby 1 NM or less.
.THU NIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 7 seconds and S
1 foot at 4 seconds. Areas of fog. A chance of showers. Vsby 1 to
3 NM.
.FRI AND FRI NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: S 3 ft at 8 seconds and E 1 foot at 9 seconds.
.SAT AND SAT NIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt.
Seas 2 to 3 ft. Wave Detail: S 3 ft at 8 seconds and SW 1 foot at
4 seconds.
.SUN AND SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 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.

$$

ANZ234-060600-
Buzzards Bay-
105 PM EDT Wed Jun 5 2024

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

$$

ANZ235-060600-
Rhode Island Sound-
105 PM EDT Wed Jun 5 2024

.THIS AFTERNOON...SW winds around 10 kt. Seas around 2 ft. Wave
Detail: SW 2 ft at 4 seconds and S 1 foot at 8 seconds. Areas of
fog. Vsby 1 to 3 NM.
.TONIGHT...S winds around 10 kt. Seas around 2 ft. Wave Detail:
SW 2 ft at 4 seconds and S 1 foot at 8 seconds. Areas of fog. A
chance of showers after midnight. Vsby 1 to 3 NM, decreasing to
1 NM or less after midnight.
.THU...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft. Wave Detail: SE 4 ft at 7 seconds. Areas of fog. Showers in
the morning. A chance of showers in the afternoon. Vsby 1 NM or
less.
.THU NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas 3 to 4 ft. Wave
Detail: S 4 ft at 8 seconds and S 1 foot at 3 seconds. Areas of
fog. A chance of showers. Vsby 1 NM or less.
.FRI AND FRI NIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft. Wave
Detail: S 4 ft at 8 seconds and SW 1 foot at 2 seconds.
.SAT AND SAT NIGHT...SW 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 SW 2 ft at
3 seconds.
.SUN AND SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt.
Seas 2 to 4 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.

$$

ANZ237-060600-
Block Island Sound-
105 PM EDT Wed Jun 5 2024

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

$$

ANZ230-060600-
Boston Harbor-
105 PM EDT Wed Jun 5 2024

.THIS AFTERNOON...SW winds 5 to 10 kt. Waves 1 foot or less. A
slight chance of showers with isolated tstms.
.TONIGHT...SW winds 5 to 10 kt. Gusts up to 20 kt in the evening.
Waves around 2 ft in the evening, then 1 foot or less. Areas of
fog after midnight with vsby 1 NM or less.
.THU...S winds 5 to 10 kt, becoming E in the afternoon. Waves
1 foot or less. Areas of fog. Showers likely. Vsby 1 NM or less,
increasing to 1 to 3 NM in the afternoon.
.THU NIGHT...NE winds around 5 kt. Waves 1 foot or less. Areas of
fog. A chance of showers. Vsby 1 to 3 NM.
.FRI...NW winds around 5 kt, becoming S in the afternoon. Waves
1 foot or less. A chance of showers. Areas of fog in the morning.
.FRI NIGHT...SW winds 5 to 10 kt, becoming W after midnight.
Waves 1 foot or less. A chance of showers in the evening.
.SAT THROUGH SUN NIGHT...SW winds 5 to 10 kt. Waves around 2 ft.
A chance of showers.

Winds and waves 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.

$$

ANZ236-060600-
Narragansett Bay-
105 PM EDT Wed Jun 5 2024

.THIS AFTERNOON...SW winds around 10 kt with gusts up to 20 kt.
Waves around 2 ft.
.TONIGHT...S winds 5 to 10 kt. Waves 1 foot or less, then around
2 ft after midnight. Areas of fog. A chance of showers after
midnight. Vsby 1 to 3 NM, decreasing to 1 NM or less after
midnight.
.THU...S winds 10 to 15 kt, diminishing to 5 to 10 kt in the
afternoon. Gusts up to 20 kt. Waves 2 to 3 ft. Areas of fog.
Showers in the morning. Showers likely in the afternoon. Vsby
1 NM or less, increasing to 1 to 3 NM in the afternoon.
.THU NIGHT...SW winds 5 to 10 kt. Waves 2 to 4 ft. Areas of fog.
A chance of showers. Vsby 1 NM or less.
.FRI AND FRI NIGHT...W winds 5 to 10 kt. Waves 2 to 4 ft.
.SAT AND SAT NIGHT...SW winds 10 to 15 kt, diminishing to 5 to
10 kt. Waves 2 to 3 ft.
.SUN AND SUN NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt,
becoming W 5 to 10 kt. Waves 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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