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

7am OBs Sunday 8/30 powered by Surf n Sea Full Moon Paddle Tour

Few clouds around this morning along with windward and mauka showers. Increasing rain for the eastern hal of the state as Ignacio nears the BIg Island.. Partly cloudy with a few showers. Trade filling in later.

Lingering WNW and SW swells with good conditions. Increasing easterly Ignacio swell today and tomorrow. Big waves expected with choppy, short period conditions. (high surf warnings for the eastside of the B.I.). 'Big Picture' updated so click link. Call the SNN Hotline 596-SURF.

Untitled-1

North Shore:

Holding but down a little on the WNW. Sunset is 2-3+' and Rocky Pt is 2-3'; Pipe is 1-3' Ehukai & Chuns are better at 1-3+ & Laniakea is 1-3'; clean in the morning with lite variables with E flow; semi clear for now, afternoon showers possible.
Untitled-1

West:

Holding but down a little on the WNW and S-SW with 2-3' at Makaha with glass/good & crowds early but onshore seabreeze mush later; fairly clear early but clouds, rain possible this afternoon.
Untitled-1

Town:

Holding on a 15 sec SW + some SSE. Surf's 1-3' rare plus at Bowls and glassy with lite offshore mix at Ala Moana, Kewalo's-Bowls-Kaisers (channel reefs) this morning; Trades later today; few clouds, watch out for dirty water.
Untitled-1

Diamond Head:

Holding on the 15 sec SW and SSE @ 2-3' maybe +' on takeoffs, smooth lite side offshores this AM and good form at Right hands/Cliffs/Lite House etc; partly clear.
Untitled-1

Sandy's:

Holding on mostly the S-SW @ 2-3' and chance of plus every hour. Full Pt. etc has smaller 2' sets; smooth from Pipe little's all the way to Gas Chambers; fun sandbars & lite trade flow in the morning with partly clear skies.
Untitled-1

East Makapu'u:

Rising easterly Ignacio swell today and tomorrow (7' 12sec). Ramping up fast. 2-4' this morning but up to 3-6+ by tonight and into tomorrow. Look for choppy afternoon conditions with set breaking further out. Occasional cloud and shower likely.

Weather

Sunday
with="64"

Temp
min:
79°F
max: 90°F

Chance of Rain

Wind:
18mph NE

Monday
with="64"

Temp
min:
79°F
max: 92°F

Chance of Rain

Wind:
18mph NE

Tuesday
with="64"

Temp
min:
80°F
max: 91°F

Chance of Rain

Wind:
13mph N

Wednesday
with="64"

Temp
min:
79°F
max: 92°F

Chance of Rain

Wind:
13mph WSW

Thursday
with="64"

Temp
min:
78°F
max: 92°F

Chance of Rain

Wind:
13mph SSW

Range:
10-20+mph E-NE
AM land breezes, trades filling in
Range:
10-25mph E-NE
Tropical Storm conditions for Maui & B.I.
Range:
15-25+mph N-NE
Tropical Storm conditions, rain, Thunder storms
Range:
15-25+mph MIX
Turning southerly
Range:
10-20mph S

North

Sunday
08/30
W-NW
Haw: 2-3+
Face: 3-5+
Holding
4' 13 sec, partly cloudy
Monday
08/31
W-NW
Haw: 1-3
Face: 2-5
Dropping
3' 14 sec
Tuesday
09/01
N-NW
Haw: 1-2 occ 3
Face: 2-4 occ 5
Rising

Wednesday
09/02
N-NW
Haw: 1-3+
Face: 2-5+
Rising

Thursday
09/03
N-NW
Haw: 1-3+
Face: 2-5+
Rising
Ignacio wrap? 3' 14 sec ENE
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

Sunday
08/30
W-NW
Haw: 1-3+
Face: 2-5+
Holding
+ SSW, clean, partly cloudy
Monday
08/31
W-NW
Haw: 1-2 occ 3
Face: 2-4 occ 5
Dropping

Tuesday
09/01
COMBO
Haw: 1-2+
Face: 1-3+
Rising
new 3' N wrap
Wednesday
09/02
S-SW
Haw: 1-2+
Face: 1-3+
Rising
3' N wrap
Thursday
09/03
S+SSW
Haw: 0
Face: 0
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

Sunday
08/30
S-SW
Haw: 1-3
Face: 2-5
Holding
3' 13 sec, lulls, clean
Monday
08/31
S-SW
Haw: 1-2
Face: 1-3
Holding

Tuesday
09/01
S-SW
Haw: 1-2+
Face: 1-3+
Rising Later
1' 18 sec
Wednesday
09/02
S-SW
Haw: 2-3
Face: 3-5
Rising
1.5' 16 sec
Thursday
09/03
S-SW
Haw: 2-3+
Face: 3-5+
Rising
2.5' 14 sec
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

Sunday
08/30
E
Haw: 2-4+
Face: 3-7+
Rising
7' 12sec
Monday
08/31
E-NE
Haw: 3-6+
Face: 5-10+
Rising

Tuesday
09/01
E-NE
Haw: 3-6+
Face: 5-10+
Rising
8' 11 sec: Hurricane Ignacio
Wednesday
09/02
NE
Haw: 3-6
Face: 5-10
Holding

Thursday
09/03
E-NE
Haw: 2-5
Face: 3-8
Rising
3' 15 sec; Hurricane Jimenez
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:

Sunday   08/30
Primary: Holding  W-NW  2-3+'
Secondary: Rising  E  2-3+ ++later
Third: Holding  S-SW  1-3'+
Untitled-1

Marine Warnings:

Sunday   08/30
Tropical storm warning for eastern islands & high surf warning (B.I.)
Untitled-1

Sailing Report:

Sunday   08/30
Fair/good with light morning winds but trades filling in
Untitled-1

Diving Report:

Sunday   08/30
Poor for all shores with swells, especially the increasing hurricane swells. Watchout/stay out: dirty brownish waters.

Oahu

SUNSET
Sunday   08/30
W-NW
Haw: 2-3 occ +
Face: 3-5 occ +
Variables to trades
smooth
stay out of isolated brown water
ROCKY POINT
Sunday   08/30
W-NW
Haw: 2-3 occ +
Face: 3-5 occ +
Variables to trades
smooth

Pipeline
Sunday   08/30
W-NW
Haw: 1-3
Face: 2-5
Variables to trades
smooth
Ehukai bigger
HALEIWA
Sunday   08/30
COMBO
Haw: 1-3
Face: 2-5
Variables to trades
smooth
stay out of isolated brown water
MAKAHA
Sunday   08/30
COMBO
Haw: 2-3
Face: 3-5
Variables to sea-breezes
smooth am...mushy pm
stay out of isolated brown water
ALA MOANA
Sunday   08/30
S-SW
Haw: 2-3
Face: 3-5
Variables to trades
good

Waikiki
Sunday   08/30
S-SW
Haw: 1-3
Face: 2-5
Variables to trades
good

Diamond Head
Sunday   08/30
S-SW
Haw: 2-3 occ +
Face: 3-5 occ +
Variables to trades
good

Sandy Beach
Sunday   08/30
COMBO
Haw: 2-3
Face: 3-5
Variables to trades
smooth

Makapuu
Sunday   08/30
E
Haw: 2-4+
Face: 3-7+
Trades light-moderate
smooth
+ later

Maui

Hookipa
Sunday   08/30
COMBO
Haw: 1-3+
Face: 2-5+
Variables to trades
fair
stay out of isolated brown water
Honolua
Sunday   08/30
W-NW
Haw: 0-2
Face: 0-3
Calm to trades
smooth
stay out of isolated brown water
Kihei
Sunday   08/30
COMBO
Haw: 0-2
Face: 0-3
Calm to trades
smooth

Hana
Sunday   08/30
E-NE
Haw: 1-3+
Face: 2-5+
Variables to trades
smooth
iso+ later
Lahaina
Sunday   08/30
S-SW
Haw: 1-3
Face: 2-5
Variables to trades
smooth

Kauai

Hanalei
Sunday   08/30
W-NW
Haw: 2-3
Face: 3-5
Variables to trades
smooth

Majors
Sunday   08/30
COMBO
Haw: 2-3
Face: 3-5
Variables to sea-breezes
smooth

Poipu
Sunday   08/30
S-SW
Haw: 2-3
Face: 3-5
Variables to trades
smooth

Kapaa
Sunday   08/30
E-NE
Haw: 1-3+
Face: 2-5+
Variables to trades
smooth

Big Island

Hamakua Coast
Sunday   08/30
E-NE
Haw: 2-4+
Face: 3-7+
Variables to trades
rainy, stormy

Kohala
Sunday   08/30
COMBO
Haw: 0-2
Face: 0-3
Variables to sea-breezes
smooth

Kona
Sunday   08/30
S-SW
Haw: 1-3
Face: 2-5
Variables to sea-breezes
smooth

Hilo
Sunday   08/30
E
Haw: 3-5+
Face: 5-9+
Variables to trades
rainy, stormy
+later
Kau
Sunday   08/30
E
Haw: 4-6 occ +
Face: 6-10 occ +
Variables to trades
rainy, stormy

Weather

Advisory and Warning Criteria
Location Advisory Warning
North-Facing Shores 15 Feet (8') 25 Feet
West-Facing Shores - Big Island 8 Feet (4'+) 12 Feet
West-Facing Shores - Remaining Islands 12 Feet (7') 20 Feet
South-Facing Shores 8 Feet (4'+) 15 Feet
East-Facing Shores 8 Feet (4'+) 15 Feet

Big Picture

Big Picture Tuesday update 8/25/15

NPAC
The majority of the Jet is far above the Aleutians and some trough off Japan. High pressure is established off to the NE but trades haven’t competed well against the effects of Kilo and nearby troughing.
The tough off Japan deepened this week right as Atsani recurves from the tropics up into the subtropics (a gender bender) merging with and feeding off the energy creating a long lasting fun but downgraded WNW.

Recent and current: Today we see a and that ongoing West up to 3’ for Chuns etc thanks to Typhoon Atsani (8/13-8/24) and this storm will gift us at the end of the upcoming week as it becomes a cold core extra Tropical Low in the NPAC. Read below. Plus there’s a tiny 2’ NE at 9 sec for Laniakea.

Next: Kilo and Loke may add in subtle West energy under Atsani.

Next: Former Atsani spins off Japan from its NE track with 45’ seas as its veers ENE reaching 500 miles off the dateline .Most the energy points off to the NE as Atsani tracks N again and wanes. But a 3-5’ WNW surf at 16-18 sec should fill Friday and peak Saturday before fading Sunday.

Next: A small Low tracking down from the Gulf of Alaska should push down some 4’ surf at 11 seconds Tuesday Sept 1st and last into Thursday morning.

Last: A broader Gulf Low spins up Aug 31st but has an ESE track. We should still see some NE swell around the 5th of Sept. Chance of ENE swell from 12-E below but it’s too early to claim.

SPAC:

Recent and current: Several sources. We currently have a fun solid 2+’ WSW from Atsani and SSE swell from French Polynesia. This was good for last weekend for the Dukes 125th B Day Oceanfest and the NoRep Hawaiian Surfing Championships.

Next: More SSE fills Wednesday from near Tahiti 5 days ago again and this will last into Friday adding to this will be a SSW.

Next: A quick zonal Low near the Ross Ice Shelf last week should bring in some 1-2+ Friday from the SSW at 16 seconds. With the SSE Mix we’ll see solid 3’ or head high waves into the weekend.

Next: This Monday-Wed a huge Low tracks east from under Australia and out to the SE of NZL by Wednesday the 26th. Seas are about 30’ but the zonal track will limit surf to 2-3’ from the SSW with 16 seconds filling all day Thursday Sept 1st and peaking Wed-Thursday 2nd-3rd with a good chance at some just overhead sets.

Next/last: A powerful storm rises NE off the Ross Ice Shelf SE of NZL with some 40’ seas Friday the 28th. It broadens with a huge area of winds allowing for the consolidation of open ocean sea growth. WW3 long range often run hot or overcalls on its initial output and have started to downgrade each day for a few days. But, we’ll go ahead and claim good SSW swell to kick off September. Its rise all day Thursday the 3rd and peak reefs hitting up to 5’ surf from the SSW at 16-18 sec later Friday peaking Saturday the 5th.

Windward:

Recent and current: Surfs been good with off and on pulses from the NE. Other than that we’ve had the typical range of 2 and 3’ Wind swell. The High to the NE is stable and allowing for upstream fetches and 8-9 seconds which means better refraction esp for spots in the country and to the NE. Large surf likely from 12-E below 9/5.
Tropics: Most models predict a tropical cyclone, likely Twelve-E, to approach the islands from the southeast by early next week. While it was much too early to speculate about the possible track and effects, the moisture surge surrounding the cyclone may produce significant effects anyway, as the events of Kilo the last couple of days demonstrated. Many models also predicted the trough aloft to dig toward the islands over the weekend. Thus, early next week may well start with another concentrated bout of convection.

Next: Looks like models are saying 12-E will resemble a hurricane early next week. WW3 calling for a fast huge ramp up in close interval ENE surf Sat the 5th at 12’ 11 seconds. Warnings will go up if the long range comes true. This is just a heads up. Today, the National Hurricane Center is issuing advisories on Tropical Depression Twelve-E, located well east-southeast of the Islands.


Hurricanes so far….

Andres
Blanca
Carlos
Dolores Enrique Felicia
Guillermo Hilda Ignacio Jimena Kevin Linda
Marty Nora Olaf Patricia Rick Sandra
Terry Vivian Waldo Xina York Zelda









FETCH: Often called the fetch length, is a term for the length of water or distance over which a given wind direction has blown. Fetch length along with the wind speed (or strength) determines the size of waves produced. The longer the fetch length and the faster the wind speed, the larger and stronger the wave will be and vice versa.
CAPTURED or FOLLOWING FETCH: Not only does the fetch length determine the power and energy of the wave. Additionally, if the winds/fetch are blowing in the same direction as during the wave's or storm's lifetime, the wave will in turn be even stronger. The fetch is related to the orbit of the wave and track of the storm.The longer the wind drags along the sea the more energy the wave will have. This can be seen not just in vertical height measurement but in wave period (the measurement of waves through time).
WAVES PERIOD:Time, in seconds, between the passage of consecutive wave crests past a fixed point. In general the longer the period the bigger the wave. Windswell or 'close interval' swells are under 10 seconds. Big 'ground swells' are 17-20+ seconds (note: a 20+ second swell needs storm force 50+kt winds blowing over a 1500 mile fetch to be fully developed' into 20-25' beasts; these 20 second waves can be felt 1000 feet down!). This is why they jack so much more, pulling large amounts of H2O off the outer reefs.

More generic marine definitions click this link http://www.prh.noaa.gov/hnl/pages/marinedef.php

....All surf height observations and forecasts are for the full face surf height, from the trough to the crest of the wave.

Advisory and Warning Criteria
Location Advisory Warning
North-Facing Shores 15 Feet (8') 25 Feet
West-Facing Shores - Big Island 8 Feet (4'+) 12 Feet
West-Facing Shores - Remaining Islands 12 Feet (7') 20 Feet
South-Facing Shores 8 Feet (4'+) 15 Feet
East-Facing Shores 8 Feet (4'+) 15 Feet

Surfer's Wall Photos

Back to Top