Premium snn Membership

Join the Premium SNN Membership and enjoy 10 Day Forecasts, All Webcams Page, 5 Days Webcams Archives, Help Surfrider & Access Surf with your partnership.
All for just $8/month Sign Up Now! 1st Month is FREE

Blue Planet Red 720 Dec17

645am UPDATE OBS 12/18 Monday powered by Surf n Sea Christmas Give Away Stickers!

Beautiful AM with lite East trades. Scattered clouds for Windward/ Mauka & North. No advisories.

BIG PICTURE: Updated Thursday 12/14/17. Holding moderate NW, holding tiny South, & easing small-moderate ENE trade swell. Call 596-SURF 7a, 12p, 3p, 5pm

Untitled-1

North Shore:

Down-dropping 13 sec NW. Surf is really good with light offshores. Sunset 3-5', Pipe/Backdoor3-5'(Finals Day), Chuns 3-4', Laniakea 3-4'; Haleiwa, 2-4' under partly cloudy skies.
Untitled-1

West:

Down-dropping NW. Makaha is 1-3' maybe a 4' and glassy early with calm-light east winds but turning slightly mushy/ bumpy by mid-morning with seabreezes and mostly clear.
Untitled-1

Town:

Holding the 10-14 sec South. Surf is 0-1.5' occc 2' with light East winds veering to bumpy onshore texture toward Noon from Kewalos to Courts, Ala Moana to Kaisers. Threes-Pops-Queens mostly 0-1.5’ & fairly clear.
Untitled-1

Diamond Head:

Holding the small South. Surf is 0-1.5' occ 2' and smooth with lite East flow turning to sea-breezes by mid-morning. Inconsistent, weak, crumbly later under fairly clear skies.
Untitled-1

Sandy's:

Holding an East swell vs NE now. Surf is 1-2' occ.+ with nice early AM water, semi-bump later. Bigger ones from Full and 1/2 Point; smaller 1-2' Middle Peaks to Chambers & scattered clouds.
Untitled-1

East Makapu'u:

Down and holding 9 sec ENE. Surf is 1-3' with semi clean with light East trades maybe turning to sea-breezes by mid-morning under broken skies.
Upper Cervical 728

Weather

Monday
with="64"

Temp
min:
71°F
max: 88°F

Partly Cloudy

Wind:
3mph S

Tuesday
with="64"

Temp
min:
71°F
max: 84°F

Chance of Rain

Wind:
8mph N

Wednesday
with="64"

Temp
min:
68°F
max: 81°F

Partly Cloudy

Wind:
18mph N

Thursday
with="64"

Temp
min:
69°F
max: 82°F

Partly Cloudy

Wind:
13mph NNE

Friday
with="64"

Temp
min:
70°F
max: 83°F

Partly Cloudy

Wind:
8mph NNW

Range:
5-10mph Variables to sea-breezes
East flow
Range:
5-15mph NE Trades light-moderate

Range:
10-20mph North winds

Range:
5-15mph North winds

Range:
10-25mph NW winds

North

Monday
12/18
NW
Haw: 3-5 occ +
Face: 5-9 occ +
Holding
5' 13s; Smooth, partly clear
Tuesday
12/19
N-NW
Haw: 3-6+
Face: 5-10+
Rising early Afternoon
8' 12sec + NNE=8'surf
Wednesday
12/20
N-NW
Haw: 5-8
Face: 8-14
Dropping
8' 11sec + NNE
Thursday
12/21
N-NW
Haw: 4-6+
Face: 6-10+
Dropping
close storm
Friday
12/22
NW
Haw: 3-5
Face: 5-9
Rising
3'15sec
ho ho, you can't display HTML canvas graphics yet ho ho, you can't display HTML canvas graphics yet ho ho, you can't display HTML canvas graphics yet ho ho, you can't display HTML canvas graphics yet ho ho, you can't display HTML canvas graphics yet

West

Monday
12/18
NW
Haw: 2-3 occ 4
Face: 3-5 occ 7
Holding
clean, clear to onshore, convective clouds midday
Tuesday
12/19
NW
Haw: 2-4
Face: 3-7
Rising early Afternoon

Wednesday
12/20
NW
Haw: 1-3+
Face: 2-5+
Holding

Thursday
12/21
NW
Haw: 2-4
Face: 3-7
Dropping

Friday
12/22
NW
Haw: 5-7
Face: 8-12
Rising

ho ho, you can't display HTML canvas graphics yet ho ho, you can't display HTML canvas graphics yet ho ho, you can't display HTML canvas graphics yet ho ho, you can't display HTML canvas graphics yet ho ho, you can't display HTML canvas graphics yet

South

Monday
12/18
S-SW
Haw: 1 occ 2
Face: 1-2 occ 3
Dropping
glassy patches, fairly clear
Tuesday
12/19
S-SW
Haw: 1 occ 2
Face: 1-2 occ 3
Rising
1' 16 sec
Wednesday
12/20
S-SW
Haw: 1 occ 2
Face: 1-2 occ 3
Holding

Thursday
12/21
S-SW
Haw: 0-1.5
Face: 0-2
Dropping

Friday
12/22
S-SW
Haw: 0-1
Face: 0-1.5
Dropping

ho ho, you can't display HTML canvas graphics yet ho ho, you can't display HTML canvas graphics yet ho ho, you can't display HTML canvas graphics yet ho ho, you can't display HTML canvas graphics yet ho ho, you can't display HTML canvas graphics yet

east

Monday
12/18
E-NE
Haw: 1-3
Face: 2-5
Holding

Tuesday
12/19
E-NE
Haw: 1-2
Face: 1-3
Holding

Wednesday
12/20
E-NE
Haw: 1-2
Face: 1-3
Holding

Thursday
12/21
E-NE
Haw: 1-2
Face: 1-3
Holding

Friday
12/22
E-NE
Haw: 1-2
Face: 1-3
Holding

ho ho, you can't display HTML canvas graphics yet ho ho, you can't display HTML canvas graphics yet ho ho, you can't display HTML canvas graphics yet ho ho, you can't display HTML canvas graphics yet ho ho, you can't display HTML canvas graphics yet
Untitled-1

Current Swells:

Monday   12/18
Primary: Holding  NW  3-5+' surf at 14 sec
Secondary: Dropping  N-NE  1-3 wind swell surf at 9 sec
Third: Holding  S-SW  1 occ 2' surf at 10-14sec
Untitled-1

Marine Warnings:

Monday   12/18
None
Untitled-1

Sailing Report:

Monday   12/18
Poor-fair with Calm to lite East trades veering to Variables to onshore seabreezes Midday to afternoon
Untitled-1

Diving Report:

Monday   12/18
Poor for North shores; fair-good for deeper West shores, too. Fair to good for inside reefs along East or Windward. South shores best.

Oahu

SUNSET
Monday   12/18
NW
Haw: 3-5
Face: 5-9
Calm to seabreezes
good

ROCKY POINT
Monday   12/18
NW
Haw: 3-5
Face: 5-9
Calm to seabreezes
good

Pipeline
Monday   12/18
NW
Haw: 3-5
Face: 5-9
Calm to seabreezes
good

Pipeline
Monday   12/18
N
Haw: 2-4
Face: 3-7
NE Trades moderate
Sideshore
TREND
HALEIWA
Monday   12/18
NW
Haw: 2-4
Face: 3-7
Calm to seabreezes
clean

MAKAHA
Monday   12/18
NW
Haw: 1-3 occ +
Face: 2-5 occ +
Calm to seabreezes
smooth am...mushy pm

ALA MOANA
Monday   12/18
S-SW
Haw: 1 occ 2
Face: 1-2 occ 3
Calm to seabreezes
good

Waikiki
Monday   12/18
S-SW
Haw: 0-1.5
Face: 0-2
Veering to variables
clean

Diamond Head
Monday   12/18
COMBO
Haw: 1 occ 2
Face: 1-2 occ 3
Veering to variables
good

Sandy Beach
Monday   12/18
E-NE
Haw: 1-2 occ +
Face: 1-3 occ +
Calm to light
smooth

Makapuu
Monday   12/18
E-NE
Haw: 2-3
Face: 3-5
Calm to seabreezes
smooth

Maui

Hookipa
Monday   12/18
NW
Haw: 2-3+
Face: 3-5+
Calm to light
good

Honolua
Monday   12/18
NW
Haw: 1-3
Face: 2-5
Calm to light
fair to good

Kihei
Monday   12/18
COMBO
Haw: 0
Face: 0
Veering to variables
good

Hana
Monday   12/18
E-NE
Haw: 2-3 occ +
Face: 3-5 occ +
Calm to light
good

Lahaina
Monday   12/18
S
Haw: 0-1.5
Face: 0-2
Calm to seabreezes
smooth am...mushy pm

Kauai

Hanalei
Monday   12/18
NW
Haw: 3-5
Face: 5-9
Calm to seabreezes
good

Majors
Monday   12/18
NW
Haw: 1-3 occ +
Face: 2-5 occ +
Calm to light
smooth am...mushy pm

Poipu
Monday   12/18
S
Haw: 0-1.5
Face: 0-2
Veering to variables
smooth am...mushy pm

Kapaa
Monday   12/18
ENE+N
Haw: 2-3+
Face: 3-5+
Calm to light
good

Big Island

Hamakua Coast
Monday   12/18
E-NE
Haw: 2-3+
Face: 3-5+
Calm to light
good

Kohala
Monday   12/18
NW
Haw: 0
Face: 0
Veering to variables
good

Kona
Monday   12/18
COMBO
Haw: 1 occ 2
Face: 1-2 occ 3
Calm to seabreezes
smooth am...mushy pm

Hilo
Monday   12/18
ENE+N
Haw: 2-3
Face: 3-5
Calm to light
good

Kau
Monday   12/18
COMBO
Haw: 1-3
Face: 2-5
Veering to variables
good

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.)

Surfer's Wall Photos

Latest Photos:

Most Liked Photos:

Back to Top