064
FZUS51 KBOX 102305
CWFBOX

Coastal Waters Forecast for Massachusetts and Rhode Island
National Weather Service Boston/Norton MA
705 PM EDT Fri May 10 2024

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

ANZ200-111200-
705 PM EDT Fri May 10 2024

.Synopsis for Massachusetts and Rhode Island coastal waters...
A weak ridge of high pressure remains over New England Friday night.
Then strong low pressure tracks well southeast of New England
Saturday. Some easterly swells may impact the MA/RI waters Sat night
into Sunday.  Otherwise, weak high pressure remains over the waters
this weekend. The high then strengthens Monday and slides south of
New England. This results in strengthening SSW winds early next
week, along with the risk for widespread showers Tuesday and/or
Wednesday.

$$

ANZ250-111200-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
705 PM EDT Fri May 10 2024

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

$$

ANZ251-111200-
Massachusetts Bay and Ipswich Bay-
705 PM EDT Fri May 10 2024

.TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt, becoming
NE 5 to 10 kt after midnight. Seas 2 to 4 ft. Wave Detail: E 3 ft
at 7 seconds and E 1 foot at 10 seconds.
.SAT...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning.
Seas around 3 ft. Wave Detail: E 3 ft at 7 seconds and E 1 foot
at 10 seconds.
.SAT NIGHT...E winds 5 to 10 kt, becoming N after midnight. Seas
3 to 4 ft. Wave Detail: E 3 ft at 7 seconds and S 1 foot at
9 seconds.
.SUN...N winds 5 to 10 kt, becoming E in the afternoon. Seas 3 to
4 ft. Wave Detail: E 3 ft at 8 seconds and NE 1 foot at
5 seconds.
.SUN NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas
2 to 4 ft. Wave Detail: E 3 ft at 8 seconds and SW 1 foot at
3 seconds.
.MON AND MON NIGHT...SW winds 15 to 20 kt. Seas 2 to 3 ft. Wave
Detail: S 3 ft at 4 seconds and E 3 ft at 8 seconds.
.TUE...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft. A chance of showers.
.TUE NIGHT AND WED...S winds 10 to 15 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Showers likely.
.WED NIGHT...N 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.

$$

ANZ231-111200-
Cape Cod Bay-
705 PM EDT Fri May 10 2024

.TONIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt this evening.
Seas 2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds and S 1 foot at
7 seconds.
.SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Wave Detail: N 2 ft at 3 seconds and S 1 foot at 8 seconds.
.SAT NIGHT...NE winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: E
3 ft at 7 seconds and NE 2 ft at 3 seconds.
.SUN...NE winds around 5 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft
at 8 seconds and N 1 foot at 4 seconds.
.SUN NIGHT...SW winds around 5 kt. Seas around 2 ft. Wave Detail:
E 2 ft at 8 seconds and NE 1 foot at 4 seconds.
.MON...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up
to 20 kt in the afternoon. Seas around 2 ft. Wave Detail: SW 2 ft
at 3 seconds and E 2 ft at 8 seconds.
.MON NIGHT...SW winds around 15 kt with gusts up to 25 kt. Seas
2 to 4 ft.
.TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. A chance of showers.
.TUE NIGHT AND WED...S winds 15 to 20 kt, diminishing to 10 to
15 kt. Gusts up to 25 kt. Seas 2 to 4 ft. Showers likely.
.WED NIGHT...N 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.

$$

ANZ254-111200-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
705 PM EDT Fri May 10 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING...

.TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to
5 ft. Wave Detail: NE 3 ft at 6 seconds and S 2 ft at 8 seconds.
A slight chance of showers this evening.
.SAT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
5 ft. Wave Detail: NE 4 ft at 6 seconds and S 2 ft at 8 seconds.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas 4 to 6 ft. Wave
Detail: E 4 ft at 7 seconds and S 2 ft at 9 seconds.
.SUN...N winds 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: E 4 ft at
8 seconds and S 1 foot at 8 seconds.
.SUN NIGHT...NW winds around 5 kt. Seas 3 to 5 ft. Wave Detail: E
4 ft at 8 seconds and S 2 ft at 9 seconds.
.MON AND MON NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt.
Seas 3 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and E 3 ft at
8 seconds.
.TUE...S winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to
4 ft.
.TUE NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas
4 to 5 ft. Showers likely.
.WED...S winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to
6 ft. Showers likely.
.WED NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas
4 to 6 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.

$$

ANZ255-111200-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
705 PM EDT Fri May 10 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY MORNING...

.TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: NE 4 ft at 5 seconds and S 2 ft at 8 seconds.
A slight chance of showers this evening.
.SAT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: NE 4 ft at 5 seconds and S 2 ft at 8 seconds.
.SAT NIGHT...NE winds 15 to 20 kt, diminishing to around 10 kt
after midnight. Seas 3 to 5 ft. Wave Detail: E 4 ft at 7 seconds
and S 2 ft at 8 seconds.
.SUN...NE winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: E 4 ft
at 8 seconds and NE 1 foot at 3 seconds.
.SUN NIGHT...W winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: E
4 ft at 8 seconds and S 2 ft at 9 seconds.
.MON AND MON NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and E 3 ft at
8 seconds.
.TUE...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft.
.TUE NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas
4 to 5 ft. Showers likely.
.WED...SE winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to
6 ft. Showers likely.
.WED NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas
5 to 6 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.

$$

ANZ256-111200-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
705 PM EDT Fri May 10 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING...

.TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
5 ft. Wave Detail: E 4 ft at 5 seconds and S 2 ft at 8 seconds. A
slight chance of showers this evening.
.SAT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Wave Detail: NE 4 ft at 5 seconds and S 2 ft at 9 seconds.
.SAT NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. Seas 3 to 5 ft. Wave
Detail: NE 4 ft at 6 seconds and E 3 ft at 9 seconds.
.SUN...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
2 to 4 ft. Wave Detail: E 3 ft at 8 seconds and NE 1 foot at
4 seconds.
.SUN NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 8 seconds and S 1 foot at 9 seconds.
.MON AND MON NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt.
Seas 2 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and E 3 ft at
8 seconds.
.TUE...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft. A chance of showers.
.TUE NIGHT AND WED...S winds 15 to 20 kt, becoming SE 10 to
15 kt. Gusts up to 30 kt. Seas 4 to 6 ft. Showers likely.
.WED NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas
5 to 6 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.

$$

ANZ232-111200-
Nantucket Sound-
705 PM EDT Fri May 10 2024

.TONIGHT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 4 seconds and S
1 foot at 8 seconds. A slight chance of showers this evening.
.SAT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
3 ft. Wave Detail: NE 3 ft at 4 seconds and S 1 foot at
8 seconds.
.SAT NIGHT...NE 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: E 2 ft at 6 seconds and SE 1 foot at 15 seconds.
.SUN...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft
at 8 seconds and NE 1 foot at 4 seconds.
.SUN NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E
2 ft at 8 seconds and W 1 foot at 3 seconds.
.MON AND MON NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt.
Seas around 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at
8 seconds.
.TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
3 ft.
.TUE NIGHT...S winds 15 to 20 kt with gusts up to 30 kt. Seas
around 3 ft. Showers likely.
.WED...SE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Showers likely.
.WED NIGHT...N 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.

$$

ANZ233-111200-
Vineyard Sound-
705 PM EDT Fri May 10 2024

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

$$

ANZ234-111200-
Buzzards Bay-
705 PM EDT Fri May 10 2024

.TONIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt this evening.
Seas 2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds and S 1 foot at
8 seconds. A slight chance of showers this evening.
.SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas around
2 ft. Wave Detail: N 2 ft at 3 seconds and E 1 foot at 9 seconds.
.SAT NIGHT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt
after midnight. Seas around 2 ft. Wave Detail: NE 2 ft at
3 seconds and E 2 ft at 7 seconds.
.SUN...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
1 foot or less. Wave Detail: NE 1 foot at 2 seconds and S 1 foot
at 2 seconds.
.SUN NIGHT THROUGH MON NIGHT...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 8 seconds.
.TUE...SW winds around 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 7 seconds.
A chance of showers.
.TUE NIGHT AND WED...S winds around 15 kt, becoming SE. Gusts up
to 25 kt. Seas 2 to 4 ft. Showers likely.
.WED NIGHT...N winds around 10 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.

$$

ANZ235-111200-
Rhode Island Sound-
705 PM EDT Fri May 10 2024

.TONIGHT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. Gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: NE 3 ft
at 4 seconds and E 2 ft at 7 seconds. A slight chance of showers
this evening.
.SAT...NE winds around 15 kt with gusts up to 20 kt. Seas around
3 ft. Wave Detail: NE 3 ft at 4 seconds and E 2 ft at 7 seconds.
.SAT NIGHT...NE 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: NE 3 ft at 4 seconds and SE 2 ft at 7 seconds.
.SUN...NE winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft. Wave Detail: SE 2 ft at 7 seconds and NE 1 foot at
3 seconds.
.SUN NIGHT THROUGH MON NIGHT...SW winds 15 to 20 kt with gusts up
to 25 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and S
2 ft at 9 seconds.
.TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
4 ft. Wave Detail: S 4 ft at 6 seconds and SE 1 foot at
13 seconds. A chance of showers.
.TUE NIGHT AND WED...S winds 15 to 20 kt, becoming SE 10 to
15 kt. Gusts up to 25 kt. Seas 3 to 5 ft. Showers likely.
.WED NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas
4 to 5 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.

$$

ANZ237-111200-
Block Island Sound-
705 PM EDT Fri May 10 2024

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

$$

ANZ230-111200-
Boston Harbor-
705 PM EDT Fri May 10 2024

.TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt, becoming
NE 5 to 10 kt after midnight. Waves around 2 ft this evening,
then 1 foot or less.
.SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to
3 ft.
.SAT NIGHT...E winds 5 to 10 kt, becoming N after midnight. Waves
1 foot or less.
.SUN...N winds 5 to 10 kt, becoming E in the afternoon. Waves
1 foot or less.
.SUN NIGHT...S winds 5 to 10 kt, becoming SW after midnight.
Waves 1 foot or less.
.MON AND MON NIGHT...SW winds 15 to 20 kt. Waves around 2 ft.
.TUE...SW winds 10 to 15 kt with gusts up to 25 kt. Waves around
2 ft. A chance of showers.
.TUE NIGHT AND WED...S winds 10 to 15 kt with gusts up to 20 kt.
Waves around 2 ft. Showers likely.
.WED NIGHT...N winds around 10 kt with gusts up to 20 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.

$$

ANZ236-111200-
Narragansett Bay-
705 PM EDT Fri May 10 2024

.TONIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt this evening.
Waves around 2 ft. A slight chance of showers this evening.
.SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Waves around
2 ft.
.SAT NIGHT...NE winds 5 to 10 kt. Waves 2 to 3 ft.
.SUN...NE winds 5 to 10 kt, becoming SE in the afternoon. Waves
around 2 ft.
.SUN NIGHT THROUGH MON NIGHT...SW winds 15 to 20 kt with gusts up
to 25 kt. Waves 2 to 3 ft.
.TUE...SW winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to
3 ft. A chance of showers.
.TUE NIGHT AND WED...S winds around 15 kt, becoming SE. Gusts up
to 25 kt. Waves 2 to 4 ft. Showers likely.
.WED NIGHT...N winds around 10 kt with gusts up to 20 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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