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645am OBS Wednesday 5/4 brought to you by Surfrider Oahu Monthly Meeting today at Revolusun

Clear for Leeward & fairly cloudy Windward/Mauka with lite to moderate ENE Trades filling to fresh. Small craft Advsrys for channels east of Molokai.

BIG PICTURE Link Updated Sat. New WNW fills all day + Small SSW & moderate trade swell. Call the SNN Hotline 596-SURF.

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North Shore:

Rising on 18 sec forerunner WNW (4' late afternoon). Trace North swell dies. Sunset Pt, Rockys 1-2', Pipe '1 (Ehukai area 2'), with Chuns almost 2' to Laniakea 0-2' with nice, clean offshores & fairly clear.
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West:

Down and dropping SSW, rising esp later on the long period WNW. Makaha 0-2' on the inside, behind the reef w/ calm to offshores by 8am & clear.
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Town:

Down and dropping 14 sec SSW. Surfs 1-2' (occ chest) sets and good shape for top reefs like Bowls, Kewalos. Surf's 1-2' mostly at Queens/Canoes with good, clean light-moderate ENE offshores; & fairly clear.
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Diamond Head:

Down and dropping SSW + some SE. Dawn has 1-2' maybe chest high on take off) with fairly clean 5-15mph side-offshores filling to fresh; decent lines at Right hands/Cliffs/Lite House...fairly clear.
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Sandy's:

Down and dropping on the SSW and 8 sec Trade swell at 1-2 occ higher' out in front of the Lifeguards, 1-2' from Full Pt - 1/2 point, occ almost 3' at Gas Chambers.
Moderate 10-20mph ENE and semi bumpy side offshores; partly cloudy.
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East Makapu'u:

Down and Holding on a 8 sec Wind swell at 1-2+' at Makapu'u barely breaking outside on left and 1-2' at Keiki's & typical choppy onshore from 10-20 ENE trades & mostly cloudy.

Weather

Wednesday
with="64"

Temp
min:
74°F
max: 86°F

Chance of Rain

Wind:
18mph E

Thursday
with="64"

Temp
min:
74°F
max: 88°F

Clear

Wind:
8mph SSE

Friday
with="64"

Temp
min:
73°F
max: 87°F

Chance of Rain

Wind:
8mph WSW

Saturday
with="64"

Temp
min:
72°F
max: 84°F

Chance of Rain

Wind:
23mph NNE

Sunday
with="64"

Temp
min:
72°F
max: 83°F

Mostly Cloudy

Wind:
23mph NE

Range:
5-10mph SE
veering variable w/ seabreezes
Range:
5-10mph Light/Var
midday seabreezes
Range:
5-15mph NE
trades fill
Range:
10-20mph E-NE

Range:
10-20mph E-NE

North

Thursday
05/05
W-NW
Haw: 2-4+
Face: 3-7+
Holding
4' 15 sec
Friday
05/06
W-NW
Haw: 2-4
Face: 3-7
Dropping Slowly
4' 12 sec
Saturday
05/07
W-NW
Haw: 1-3
Face: 2-5
Dropping
3' 11 sec
Sunday
05/08
W-NW
Haw: 1-2
Face: 1-3
Dropping

Monday
05/09
NW
Haw: 1-2+
Face: 1-3+
Rising
3' 10s
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West

Thursday
05/05
COMBO
Haw: 2-3+
Face: 3-5+
Holding
WNW+S
Friday
05/06
COMBO
Haw: 1-3
Face: 2-5
Rising
New south + WNW
Saturday
05/07
S
Haw: 1-3+
Face: 2-5+
Rising

Sunday
05/08
COMBO
Haw: 1-3
Face: 2-5
Holding

Monday
05/09
NW SSW
Haw: 1-3
Face: 2-5
Rising
New tiny NW
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South

Thursday
05/05
S-SW
Haw: 1-2
Face: 1-3
Dropping Slowly

Friday
05/06
S
Haw: 2-3+
Face: 3-5+
Rising
2.5' 16 sec
Saturday
05/07
SSE+SSW
Haw: 2-4
Face: 3-7
Rising
3' 16 sec
Sunday
05/08
SSE+SSW
Haw: 2-3 occ 4
Face: 3-5 occ 7
Dropping
3' 14 sec
Monday
05/09
SSE+SSW
Haw: 2-3+
Face: 3-5+
Rising
3' 14 sec + new 1' 22 sec SW Taz(iffy)
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east

Thursday
05/05
E-NE
Haw: 1-2+
Face: 1-3+
Holding

Friday
05/06
E-NE
Haw: 1-2+
Face: 1-3+
Holding

Saturday
05/07
E-NE
Haw: 1-2+
Face: 1-3+
Holding

Sunday
05/08
E-NE
Haw: 1-2+
Face: 1-3+
Holding

Monday
05/09
E-NE
Haw: 1-2+
Face: 1-3+
Holding

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Current Swells:

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Marine Warnings:

Thursday   05/05
None
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Sailing Report:

Thursday   05/05
Poor to fair for all shores with calm to lite SE flow veering variable to midday seabreezes
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Diving Report:

Thursday   05/05
Extreme low tide 830am. Dives fair for deeper north, fair-good for deeper West shores. Fair-good for deeper South shores, good for select East . Shallow water surges.

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

BIG PICTURE

Saturday 4/30/16

Quick-look…Fun spring time 2-3+ NW for Saturday eases as next NW pulse reaches 5’ Sunday. There are small 4 episodes through May 15th. Not bad at all.

NPAC:
The Jet is too bad for end of April. There’s an up and down flow from Japan to just North of us. This closer jet area has the most troughing as it points SE at Hawaii. There’s a ton of High pressure off to our NE keeping East angled trade this past week and into Monday. A new High refreshens the trades Sunday on. This new high weakens the Jet and pushes it north next week however, there are troughs allowing for the spawning of more Lows keeping NW shores very doable. Then by Friday the 8th we don’t look great for long range trends (2 week out) as Highs dominate and the Jet moves far north and weakens.

Recent-current: Friday some 13 sec NW surf ramped to 3’ from a gale Low 2000 miles away beginning of last week. Saturday got up to 4’ for highest refracting reefs from this Lows NE track which marched to about 1500 miles away.

Next: A 14 sec NNW should bump Sunday to 3-5’ by 9am. It comes by a stronger storm Thursday the 18th to our NNW which was only 1000 miles off. The closer the Low the higher the surf in general due to less swell decay. Trades will ramp due to new High moving east of the dateline.

Next #2: Long period 16-18 sec NW fills Wednesday the 6th from a 45-55kt occluding Low near Hokkaido (N Japan). It slowing tracks NE then East to over 2000 miles away as it fades. This one’s going to last thanks to a long lasting fetch. Surf should reach 4 maybe 5’ for the Wed. evening sesh and hold at 3-5’ Thursday before fading about a foot a day.

Next #3: A new gale Low pops on the dateline this Wed the 4th about 1200 miles away. It tracks east and broadens as the winds weaken to 30-35kts. The fetch is wide which helps seas growth. Look for a short 11 sec NW building Saturday the 7th up to 4-6’ and holding Sunday at the same double overhead cat. It goes fast from late Monday. It is here we go into a long lasting lull.


SPAC:

The Jet has recently been getting more active with greater meridional or N to S flows which steers the storms in our direction. In fact it’s straight north this weekend right off NZL’s east coast. There’s a long fetch set up for a great SSW a week away. We go weak the rest of the work week. But it deepens again this Friday the 6th but its zonal or west to east. Saturday it starts bending NE off NZL. Models hint of a lows formation.

Recent and current: it’s been fun but small 13-15 sec SW-SSW-SSE swells the past 2 weeks thanks to an ongoing series fetches down under. All the swells tho’ have been mostly 3’ or very average. There have been few 4’ days warming us up. Fresh East winds have made for side off shores.

Next #1: A solid 16 sec SSW is going to rise 2-4’ (top reefs) by midday Sunday and last long. The storm spun down under with a wide but weakening fetch into Tuesday. Surf will be good into Wednesday as the periods drop to 12-14 sec. It was a big Low with strong 45kt gales last Sunday the 24th. A degree of the fetch points off to our east. So many spots may max at 3’.

Next #2: By Friday down under 40-55kt Low far SE of NZL tracks North with a following fetch. Watch for a rise Friday the 7th to 2-4’ from the 16 sec SSW esp by midday and last through Monday the 11th.

Windward: Average 1-3+’ from strong East trades the past couple weeks. Watch for windswell to ramp this Monday due to the new High moving in from the East. w/ Minor downward variations into next weekend.

Tropics:
Nothing at over this 7 day forecast period.










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)
East-Facing Shores- 8 Feet (4+ local) 15 Feet (8’ local)

Tropical Storm - winds 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)


Surfer's Wall Photos

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