HIC 728   9.15.20 ONLINE+INSTORE

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TRICKED OUT 728    8/1/20

640am OBS Happy Aloha Friday 9/18/20

Another sun-filled day with high clouds streaming in later. Some colorful sunsets possibly on the way. Easterly trades filling to moderate. SCA for Maui-Big Island channel waters. Beaches and beach parks open but only for solo activities.

Solid NNW-N swell next week...Big Picture updated! New SSW overlapping a small SSW. Small NNE. Trace E trade swell. Call 596-SURF: 7a, noon & 5p (recap-forecast).

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North Shore:

Rising 10 sec NNE. Sunset Pt northward 0-1-1.5. Rocky Pt to Pipe etc Flat; Chuns 0-1/2. Laniakea 1-1.5'. Surf's fairly clean this morning with light offshores. Scattered clouds.
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West:

Rising 22 sec SSW + dropping 13 sec SSW. Makaha is clean with light offshores but isolated onshore seabreezes possible this afternoon. Surf's 0-1' (a very inconsistent +' at west side focal reefs) under mostly clear skies.
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Town:

Rising 22 sec SSW + dropping 13 sec SSW. Surf's clean with light offshores but very inconsistent and with long waits between sets. Kewalos 1-2'; Ala Moana to Kaisers 1-2'. Waikiki reefs mostly 1-2' as well. Watch for bigger sets this afternoon. Surf's clean with light trades. Few-scattered clouds.
Photo courtesy of Eric Tessmer

Diamond Head:

Rising 22 sec SSW + dropping 13 sec SSW. Surf's bumpy and small at 1' occ 2' (Knee-waist high at take off). Party cloudy skies.
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Sandy's:

Rising 22 sec SSW + dropping 13 sec SSW + trace trade wrap. Full Pt to Pipe Littles bumpy at 1-3', better towards late afternoon with high tide. Shorebreak's also bumpy at 1-3'. Sideshore winds filling to moderate by afternoon; Scattered clouds.
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East Makapu'u:

Rising 10 sec NNE and rising 6 sec Trade swell. Surf's 1-2' occ 3' breaking mostly inside and across the bay. A couple waves are breaking on the outside left. Surf's fairly choppy due to stronger trades. Scattered to broken clouds.
Cholos 728 Take Out 728 3/26  …8/27 ON

Winds

Friday
Range:
10-20mph East Trade
Moderate trades return
Saturday
Range:
10-20+mph ENE Trade

Sunday
Range:
10-20+mph ENE Trade

Monday
Range:
10-20mph ENE Trade

Tuesday
Range:
10-15mph ENE Trade

North

Friday
09/18

Primary

Rising 10s NNE
Haw: 0-1.5
Face: 0-2

Secondary

Rising early Evening 11s NW
Haw: 0-1
Face: 0-1.5
Fair to good

Saturday
09/19

Primary

Up & Rising 11s NNW
Haw: 1-2
Face: 1-3

Secondary

Up & holding 10s NNE
Haw: 1-2
Face: 1-3
Fair to good

Sunday
09/20

Primary

Holding 10s NNW
Haw: 1-2
Face: 1-3

Secondary

Holding 9s NNE
Haw: 0-2
Face: 0-3
Fair to good

Monday
09/21

Primary

Dropping 10s NNW
Haw: 1-1.5
Face: 1-2

Secondary

Dropping 9s NNE
Haw: 0-1.5
Face: 0-2
Fair to good

Tuesday
09/22

Primary

Dropping 9s NNW
Haw: 0-1.5
Face: 0-2

Secondary

Holding 8s NNE
Haw: 0-1
Face: 0-1.5
divin , paddlin, fishin, sailin

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West

Friday
09/18

Primary

Dropping 13s SSW
Haw: 0-1.5
Face: 0-2

Secondary

Rising 10s NNE
Haw: 0
Face: 0
Fair to good
Saturday
09/19

Primary

Up & Rising 18s SSW
Haw: 1-2
Face: 1-3

Secondary

Up & Rising 11s NNW
Haw: 0-1.5
Face: 0-2
Good offshores
Sunday
09/20

Primary

Dropping Slow 16s SSW
Haw: 1-2 occ 3
Face: 2-4 occ 5

Secondary

Holding 10s NNW
Haw: 0-1.5
Face: 0-2
Good
Monday
09/21

Primary

Up & Rising 19s SW
Haw: 1-2 occ 3
Face: 2-4 occ 5

Secondary

Dropping 10s NNW
Haw: 0
Face: 0
Good
Tuesday
09/22

Primary

Up & holding 17s SW
Haw: 1-3
Face: 2-5

Secondary

Dropping 9s NNW
Haw: 0-1
Face: 0-1.5
Good
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South

Friday
09/18

Primary

Dropping 13s SSW
Haw: 1-2
Face: 1-3

Secondary

Rising Slow 22s SSW
Haw: 1-2
Face: 1-3
Fair to good
occasional 2.5' afternoon
Saturday
09/19

Primary

Up & Rising 18s SSW
Haw: 2-3
Face: 3-5

Secondary

None  NONE
Haw: 0
Face: 0
Good offshores
Poss 4' PM
Sunday
09/20

Primary

Dropping Slow 16s SSW
Haw: 2-3 occ 4
Face: 3-5 occ 7

Secondary

Rising Midday 20s SW
Haw: 1-2 occ +
Face: 1-3 occ +
Good

Monday
09/21

Primary

Up & Rising 19s SW
Haw: 2-3+
Face: 3-5+

Secondary

Dropping 15s SSW
Haw: 1-2+
Face: 1-3+
Good

Tuesday
09/22

Primary

Up & holding 17s SW
Haw: 2-4
Face: 3-7

Secondary

None  NONE
Haw: 0
Face: 0
Good

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east

Friday
09/18

Primary

Rising 10s NNE
Haw: 1-2 occ 3
Face: 2-4 occ 5

Secondary

Rising 6s E
Haw: 1-1.5
Face: 1-2
Choppy

Saturday
09/19

Primary

Holding 9s NNE
Haw: 1-2 occ 3
Face: 2-4 occ 5

Secondary

Holding 6s E
Haw: 1-1.5
Face: 1-2
Choppy

Sunday
09/20

Primary

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

Secondary

Rising Midday 11s E
Haw: 1-2
Face: 1-3
Mostly mushy
Tropical Storm Karina swell
Monday
09/21

Primary

Holding 10s E
Haw: 1-2+
Face: 1-3+

Secondary

Dropping 9s NNE
Haw: 1-2
Face: 1-3
Typical

Tuesday
09/22

Primary

Holding 8s E
Haw: 1-2 occ +
Face: 1-3 occ +

Secondary

Dropping 8s NNE
Haw: 1-1.5
Face: 1-2
slightly bumpy

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Current Swells:

Friday 09/18
Primary: Dropping 13s SSW surf @1-2 
Secondary: Rising 10s NNE surf @1-2 occ 3 
Third: Rising 10s NNE surf @0-1.5 
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Marine Warnings:

Friday   09/18
Small Craft Advisory for Maui-Big Island channels
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Sailing Report:

Friday   09/18
Fair as good as moderate E trades fill in.
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Diving Report:

Friday   09/18
Good for most prime zones along the North and West shores; good for select inside South shore zones but better for deeper waters. good for most inside reefs and fair for most outside reefs along Windward shores.

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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