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Surfboard Factory HI 728 Holiday

640am OBS Saturday December 15th

Chilly morning with early light-moderate ENE trade flow filling to fresh pace (15-25+mph). Broken clouds for Windward/ Mauka & scattered clouds for Leeward. High Surf Adv for North & West shores...Small craft advisory for all waters.

Holding moderate NNW, rising late large NW, easing small-mod. ENE trade and trace south swell. Call 596-SURF: 7a, 12, 3 & 5p recap-forecast.

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North Shore:

Up and holding the 13sec NW-NNW. Surf is 3-5' occ. 6' and fair with light-mod. side-off bump. Crumbly, wind-blown sections with marginal shape. Sunset 3-5' occ.+ (fair shape), Pipe not really working yet at 3-4' occ.+, Laniakea 3-5', Chuns 3-4'+ maybe 5', Ali'i Beach 3-4'+ under broken clouds.
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West:

Up and holding NW-NNW. Makaha is 2-3' occ.+ and clean with light offshore. Slightly larger & more consistent sets for focusing reefs under mostly clear skies.
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Town:

Holding trace 9-11sec South. Surf is small with top reefs at 0-1' maybe 1.5'; slow, weak and inconsistent from Kewalos to Courts. Bowls to Kaisers. Threes-Pops-Queens-Publics 0-1' with early light-moderate East trades under partly cloudy skies.
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Diamond Head:

Holding tiny South and mix of trade swell wrap. Surf is 1' occ. 2' and poor-fair with slightly bumpy side-off providing small & inconsistent sets breaking on inside reef under passing clouds.
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Sandy's:

Down and slowly dropping the 9sec ENE trade & mix of a moderate North wrap. Surf is 1-2-3' at Full Point & bumpy with sectiony, 1-2 turn sets. Moderate-fresh side-off trades with sets up to 2' inside from Middle Peaks. Fun closeout shorebreak at Chambers under broken clouds.
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East Makapu'u:

Down and dropping the 9sec ENE trade and mix of holding North wrap. Surf is 2-3' occ.+ and messy with moderate onshore chop filling to fresh by mid-morning (15-25mph). Critical drops into fast ramp sections with pounding shorebreak. Keiki's up to 3' for top sets under mostly clouds.
Cholos 728×90 generic

Weather

Saturday
with="64"

Temp
min:
73°F
max: 85°F

Partly Cloudy

Wind:
23mph NE

Sunday
with="64"

Temp
min:
73°F
max: 86°F

Clear

Wind:
18mph ENE

Monday
with="64"

Temp
min:
68°F
max: 86°F

Partly Cloudy

Wind:
13mph NE

Tuesday
with="64"

Temp
min:
70°F
max: 86°F

Clear

Wind:
13mph NNW

Wednesday
with="64"

Temp
min:
71°F
max: 81°F

Partly Cloudy

Wind:
18mph NNE

Range:
10-25mph ENE Trade

Range:
10-20mph ENE Trade

Range:
10-20mph NE Trade

Range:
5-15mph NE Trade

Range:
10-20mph ENE Trade

North

Saturday
12/15

Primary

Dropping 13s NNW
Haw: 3-5 occ +
Face: 5-9 occ +

Secondary

Dropping 10s NW
Haw: 2-4
Face: 3-7
Fair to good
Fairly clean, Broken clouds
Sunday
12/16

Primary

Rising 16s NNW
Haw: 15-25
Face: 20-40

Secondary

Dropping 11s NW
Haw: 2-3+
Face: 3-5+
Good
Outer Reefs
Monday
12/17

Primary

Dropping 14s NNW
Haw: 10-15
Face: 15-25’

Secondary

Rising early Afternoon 16s NW
Haw: 2-4+
Face: 3-7+
Good

Tuesday
12/18

Primary

Rising 20s NNW
Haw: 15-25
Face: 20-40

Secondary

Dropping 12s NNW
Haw: 6-8+
Face: 10-15+
Fair side-offshores

Wednesday
12/19

Primary

Dropping 15s NNW
Haw: 15-20+
Face: 20-35

Secondary

Dropping 10s NNW
Haw: 3-5
Face: 5-9
Fair to good

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West

Saturday
12/15

Primary

Dropping 13s NNW
Haw: 2-3 occ 4
Face: 3-5 occ 7

Secondary

Rising Slow 11s SSW
Haw: 0-1
Face: 0-1.5
Fair to good
Sunday
12/16

Primary

Rising 16s NNW
Haw: 12-18+
Face: 18-30+

Secondary

Dropping 12s SSW
Haw: 0-1
Face: 0-1.5
Good
Monday
12/17

Primary

Dropping 14s NNW
Haw: 0
Face: 0

Secondary

Rising Slow 14s SSW
Haw: 0-1.5
Face: 0-2
Good
Tuesday
12/18

Primary

Rising 20s NNW
Haw: 12-18+
Face: 18-30+

Secondary

Dropping 10s SSW
Haw: 0-1
Face: 0-1.5
Fair side-offshores
Wednesday
12/19

Primary

Dropping 15s NNW
Haw: 0
Face: 0

Secondary

Dropping 11s SSW
Haw: 0-1
Face: 0-1.5
Fair to good
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South

Saturday
12/15

Primary

Rising Slow 11s SSW
Haw: 0-1.5
Face: 0-2

Secondary

None  NONE
Haw: 0
Face: 0
Fair to good
Side-off, part clouds
Sunday
12/16

Primary

Dropping 12s SSW
Haw: 0-1.5
Face: 0-2

Secondary

Rising 15s SSW
Haw: 0-1
Face: 0-1.5
Good

Monday
12/17

Primary

Rising Slow 14s SSW
Haw: 1 occ 2
Face: 1-2 occ 3

Secondary

Dropping 12s SSW
Haw: 0-1
Face: 0-1.5
Good

Tuesday
12/18

Primary

Dropping 10s SSW
Haw: 0-1.5
Face: 0-2

Secondary

None  NONE
Haw: 0
Face: 0
Good

Wednesday
12/19

Primary

Dropping 11s SSW
Haw: 0-1.5
Face: 0-2

Secondary

None  NONE
Haw: 0
Face: 0
divin , paddlin

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east

Saturday
12/15

Primary

Holding 9s NE
Haw: 1-3 occ +
Face: 2-5 occ +

Secondary

None  NONE
Haw: 0
Face: 0
Typical
Choppy onshore, clouds
Sunday
12/16

Primary

Holding 8s ENE
Haw: 2-3
Face: 3-5

Secondary

None  NONE
Haw: 0
Face: 0
Typical

Monday
12/17

Primary

Holding 8s ENE
Haw: 1-3
Face: 2-5

Secondary

None  NONE
Haw: 0
Face: 0
Onshore

Tuesday
12/18

Primary

Holding 8s ENE
Haw: 1-2+
Face: 1-3+

Secondary

None  NONE
Haw: 0
Face: 0
Choppy

Wednesday
12/19

Primary

Holding 8s ENE
Haw: 1-2+
Face: 1-3+

Secondary

None  NONE
Haw: 0
Face: 0
Choppy

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Current Swells:

Saturday 12/15
Primary: Dropping 13s NNW surf @3-5 occ + 
Secondary: Holding 9s NE surf @1-3 occ + 
Third: Rising Slow 11s SSW surf @0-1.5 
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Marine Warnings:

Saturday   12/15
Small craft advisory for channels + high surf advisory for North & West facing shores
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Sailing Report:

Saturday   12/15
Good with moderate-fresh ENE trades
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Diving Report:

Saturday   12/15
Fair for deeper North shores and fair-good for deeper for West shores + fair-good for select south shore zones; poor for most 'inside reefs' and poor for select '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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