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PACIFIC DIAMOND 728 6/7/21

640am OBS Wednesday 6/23/21

Cloudy morning overall w/ calm conditions early. Light ENE trades filling in w/ possible seabreezes mixing in by this afternoon. No Marine Warnings, extreme UV's remain.

NNW traces + New, small WNW filling. Small, fading South + New mid-period South, small ENE trade swell. Call 596-SURF: 7a, noon & 5p (recap-forecast).

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North Shore:

Rising 14 sec WNW + tiny Dropping 9 sec NNW. Glassy but still pretty small. Sunset-Rocky Pt is 1-2' on sets. Pipe/Backdoor 1 occ 2'. Chuns 1-2'. Laniakea 1-2'. Haleiwa 1 occ 2' and broken-overcast dark clouds.
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West:

Rising 14 sec WNW + Dropping 13 sec S + Rising 16 sec S. Makaha is clean and glassy w/ 0-1' occ 2' sets. Calm winds going light offshore then likely sea breezes mixing in by lunch under scattered clouds.
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Town:

Dropping 13 sec S + Rising 16 sec S + Rising 20 sec South. Clean with calm-light offshores for now, likely seabreeze mix by this afternoon. Waikiki reefs are 0-2'. Ala Moana, Kaisers-Rockpiles & to Kewalos seeing 1-2' very occ +' now on top sets under scattered clouds.
Photo courtesy of Eric Tessmer

Diamond Head:

Dropping 13 sec S + Rising 16 sec S + Rising 20 sec South. Surf's clean at 1-2 occ +'(Knee-Waist occ Shoulder high). Clean with calm-light offshores for now. Scattered clouds.
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Sandy's:

Dropping 13 sec S + Rising 16 sec S + Rising 20 sec South + minor trade wrap. Clean conditions early w/ light side-offshore winds fillig in: Full Pt-Half Pt 1-2' occ +' and shore break's 1-2' under scattered clouds.
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East Makapu'u:

Up and Holding small 9 sec trade swell. Surf's semi-clean for now, but going onshore by mid-morning and breaking at 1-2' occ +, inside the bay. Sandbar-Keiki corner 1-2' and mostly cloudy.
Cholos 728×90 Generic

Winds

Wednesday
Range:
5-15mph East Trade
Light seabreeze mix toward afternoon
Thursday
Range:
5-15mph East Trade
Seabreezes toward midday-afternoon
Friday
Range:
5-10mph ESE
Seabreezes toward midday-afternoon
Saturday
Range:
5-15mph East Trade
Seabreezes toward midday-afternoon
Sunday
Range:
5-15+mph East Trade

North

Wednesday
06/23

Primary

Rising 14s WNW
Haw: 1-2
Face: 1-3

Secondary

Dropping 9s NNW
Haw: 0-1.5
Face: 0-2
Good offshores
2'+ by lunch
Thursday
06/24

Primary

Up & holding 12s WNW
Haw: 1-2+
Face: 1-3+

Secondary

None  NONE
Haw: 0
Face: 0
Good offshores

Friday
06/25

Primary

Dropping 10s WNW
Haw: 1-2
Face: 1-3

Secondary

Rising 12s NW
Haw: 1-2+
Face: 1-3+
Good offshores

Saturday
06/26

Primary

Up & holding 12s NW
Haw: 2-3 occ 4
Face: 3-5 occ 7

Secondary

Dropping 9s WNW
Haw: 1 occ 2
Face: 1-2 occ 3
Good offshores

Sunday
06/27

Primary

Dropping 10s NW
Haw: 1-2 occ 3
Face: 2-4 occ 5

Secondary

None  NONE
Haw: 0
Face: 0
Good offshores

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West

Wednesday
06/23

Primary

Rising 14s WNW
Haw: 0-2
Face: 0-3

Secondary

Up & Rising 16s S
Haw: 0-1.5
Face: 0-2
Good offshores
Thursday
06/24

Primary

Up & holding 15s S
Haw: 0-1.5
Face: 0-2

Secondary

Up & holding 12s WNW
Haw: 1 occ 2
Face: 1-2 occ 3
Good
Friday
06/25

Primary

Up & holding 16s S
Haw: 0-1.5
Face: 0-2

Secondary

Dropping 10s WNW
Haw: 0-2
Face: 0-3
Fair to good
Saturday
06/26

Primary

Up & holding 12s NW
Haw: 1-2 occ 3
Face: 2-4 occ 5

Secondary

Dropping 14s S
Haw: 0-1.5
Face: 0-2
Good offshores
Sunday
06/27

Primary

Dropping 10s NW
Haw: 1 occ 2
Face: 1-2 occ 3

Secondary

Up & holding 12s S
Haw: 0-1.5
Face: 0-2
Good offshores
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South

Wednesday
06/23

Primary

Up & Rising 16s S
Haw: 1-2 occ +
Face: 1-3 occ +

Secondary

Dropping 13s S
Haw: 1 occ 2
Face: 1-2 occ 3
Good offshores

Thursday
06/24

Primary

Up & holding 15s S
Haw: 2-3
Face: 3-5

Secondary

Rising 19s S
Haw: 1-2 occ 3
Face: 2-4 occ 5
Good

Friday
06/25

Primary

Up & holding 16s S
Haw: 2-3
Face: 3-5

Secondary

Dropping 13s S
Haw: 1-2+
Face: 1-3+
Fair to good

Saturday
06/26

Primary

Dropping 14s S
Haw: 1-2 occ 3
Face: 2-4 occ 5

Secondary

Dropping 12s S
Haw: 1-2
Face: 1-3
Fair to good

Sunday
06/27

Primary

Up & holding 12s S
Haw: 1-2 occ 3
Face: 2-4 occ 5

Secondary

Rising 19s SSW
Haw: 1-2
Face: 1-3
Fair to good

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east

Wednesday
06/23

Primary

Up & holding 9s ENE
Haw: 1-2 occ +
Face: 1-3 occ +

Secondary

None  NONE
Haw: 0
Face: 0
Typical

Thursday
06/24

Primary

Holding 9s ENE
Haw: 1-2 occ +
Face: 1-3 occ +

Secondary

None  NONE
Haw: 0
Face: 0
Typical

Friday
06/25

Primary

Dropping 8s ENE
Haw: 1-2
Face: 1-3

Secondary

None  NONE
Haw: 0
Face: 0
Typical

Saturday
06/26

Primary

Holding 8s ENE
Haw: 1-2
Face: 1-3

Secondary

None  NONE
Haw: 0
Face: 0
Typical

Sunday
06/27

Primary

Rising 7s ENE
Haw: 1-2 occ 3
Face: 2-4 occ 5

Secondary

None  NONE
Haw: 0
Face: 0
bumpy

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Current Swells:

Wednesday 06/23
Primary: Up & Rising 16s S surf @1-2 occ + 
Secondary: Rising 14s WNW surf @1-2 
Third: Up & holding 9s ENE surf @1-2 occ + 
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Marine Warnings:

Wednesday   06/23
None but extreme UV Ratings
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Sailing Report:

Wednesday   06/23
Fair as East Trades flow at a light pace overall with possible afternoon onshore sea breezes.
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Diving Report:

Wednesday   06/23
New WNW, minor surges. Overall good for most prime North shore zones; good for most deeper Westside spots with South swell surges; Small-Medium S swell: fair for most prime deeper zones along South shores; fair-good for most inside Windward reefs and fair-good for prime zones beyond outer reefs.

Oahu

Maui

Kauai

Big Island

Weather

Surf Advisory and Warning Criteria
Location/shoreline Advisory Warning
North-Facing Shores- 15 Feet faces (8' Local) 25 Feet faces (15' local)
West-Facing Shores - 12 Feet (7' local) 20 Feet (12' local)
West-Facing- Big Is.- 8 Feet (4'+ local) 12 Feet (7' local)
South-Facing Shores- 8 Feet (4'+ local) 15 Feet (8' local)
East-Facing Shores- 8 Feet (4'+ local) 15 Feet (8' local)

Big Picture

INACTIVE.
Get the latest on the tropics at www.hurricanes.gov
The Central Pacific Hurricane Center outlook for the 2017 Central Pacific Hurricane Season calls for 5 to 8 tropical cyclones to either develop or cross into the Central Pacific with a 40% chance for an above-normal season, a 40% chance for a normal season, and a 20% chance for a below-normal season. An average season has 4 to 5 tropical cyclones, which include tropical depressions, tropical storms, and hurricanes.
A tropical depression forms when a low-pressure area is accompanied by thunderstorms that produce a circular wind flow with maximum sustained winds below 39 mph. An upgrade to a tropical storm occurs when cyclonic circulation becomes more organized and maximum sustained winds gust between 39 mph and 73 mph. A tropical storm is then upgraded into Category 1 hurricane status as maximum sustained winds increase to between 74 mph and 95 mph. (The highest classification in the scale, Category 5, is reserved for storms with winds exceeding 156 mph).
Tropical cyclones go by many names around the world, and the terminology can get confusing. Once a tropical cyclone strengthens to the point where it has gale-force winds—39 mph or greater—it becomes a tropical storm. A storm that reaches tropical storm strength usually gets its own name to help us quickly identify it in forecasts and warnings. Once a tropical storm begins producing sustained winds of around 75 mph, we call the storm a typhoon in the western Pacific near Asia and a hurricane in the oceans on either side of North America. A “typhoon” and a “hurricane” are the same kind of storm, they just go by different names…it’s only a matter of geography.
NWS criteria for High Surf Advisories & Warnings.
In coordination with civil defense agencies & water safety organizations in Hawai`i, the NWS uses the criteria below for the issuance of High Surf Advisories & Warnings in coordination with civil defense agencies & water safety organizations in Hawai`i.
All surf height observations & forecasts are for the full face surf height, from the trough to the crest of the wave.
Advisory and Warning Criteria Location
Warning North-Facing Shores 15 Feet 25 Feet
West-Facing Shores - Remaining Islands 12 Feet 20 Feet
West-Facing Shores - Big Island 8 Feet 12 Feet
South-Facing Shores 8 Feet 15 Feet
East-Facing Shores 8 Feet 15 Feet
'Travel Time' Buoy 51101 to Waimea Buoy. Distance: 269 nautical miles (~310 miles). Angle: 307 deg
Wave Wave Wave Depth Wave Direction (deg)----------
Period Length Speed Shallow 295, 305, 315, 325, 335, 345, 355
(s) (ft) (nm/h) (ft) Travel Time (hours)----------
10sec. 512. 15. 256. 17.3, 17.7, 17.6, 16.9, 15.7, 14.0, 11.9
12sec. 737. 18. 369. 14.5, 14.8, 14.6, 14.0, 13.0, 11.6, 9.9
14sec. 1003. 21. 502. 12.4, 12.7, 12.5, 12.0, 11.2, 10.0, 8.5
16sec. 1310. 24. 655. 10.8, ,1 1.1, 11.0, 10.5, 9.8, 8.7, 7.4
18sec. 1658. 27. 829. 9.6, 9.8, 9.8, 9.4, 8.7, 7.8, 6.6
20sec. 2047. 30. 1024. 8.7 8.9 8.8 8.4 7.8 7.0 5.9
22sec. 2477. 33. 1239. 7.9 8.1 8.0 7.7 7.1 6.3 5.4
24sec. 2948. 36. 1474. 7.2 7.4 7.3 7.0 6.5 5.8 4.9

Tropical Storms - wind 39-73 mph (34-63 kt)
Category 1 - winds 74-95 mph (64-82 kt)
Category 2 -winds 96-110 mph (83-95 kt)
Category 3 -winds 111-130 mph (96-113 kt)
Category 4 - winds 131-155 mph (114-135 kt)
Category 5 -winds 156 mph and up (135+ kt)
Please visit the Central Pacific Hurricane Center website at www.weather.gov/cphc for the most recent bulletins.
ENSO is a single climate phenomenon, it has three states or phases. The two opposite phases, “El Niño” and “La Niña,” require certain changes in both the ocean and the atmosphere because ENSO is a coupled climate phenomenon. “Neutral” is in the middle of the continuum. The MJO (Madden-Julian Oscillation) is an eastward moving disturbance of clouds, rainfall, winds, and pressure that traverses the planet in the tropics and returns to its initial starting point in 30 to 60 days, on average, unlike ENSO which is stationary. In a nutshell, more active means more surf.
Kelvin wave (A Kelvin wave is a wave in the ocean or atmosphere that balances the Earth's Coriolis force against a topographic boundary such as a coastline, or a waveguide such as the equator. A feature of a Kelvin wave is that it is non-dispersive, i.e., the phase speed of the wave crests is equal to the group speed of the wave energy for all frequencies. This means that it retains its shape as it moves in the alongshore direction over time.)

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