Avalanche: Chugach State Park

Location: Peak 3

Route & General Observations

After work lap near peak 3. Got up to ~2500 feet. Saw an old avalanche, lots of wind, deep snow, and triggered a whumph.

Avalanche Details
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Trigger UnknownRemote Trigger Unknown
Avalanche Type UnknownAspect South Southeast
Elevation 3500ftSlope Angleunknown
Crown DepthunknownWidthunknown
Vertical Run 600ft  
Avalanche Details

Saw maybe day old debris (So 12/8 or 12/9). Looked like it started from the ridgeline around some rock outcroppings, at the top of a gully between peak 2 and 3. It traveled to within a few hundred feet of the peak 3 gully.

Red Flags
Red flags are simple visual clues that are a sign of potential avalanche danger. Please record any sign of red flags below.
Obvious signs of instability
Recent Avalanches?Yes
Collapsing (Whumphing)?Yes
Cracking (Shooting cracks)?Yes
Observer Comments

See previous avalanche.

We saw some small wind slabs, but not a ton. We turned around before we got too high, probably there were a lot more up higher.

Also, my partner and I triggered a quite loud whoomph when on an open, moderately wind affected, neither convex nor concave 25-30 degree slope. Sounded like it propagated out from us a good bit. The surface snow was pretty unconsolidated, I don't think it failed on a surface layer but maybe on the old snow/new snow interface from this giant storm. I found this a bit surprising, as the storm snow seemed to me to be too uncohesive to propagate any energy, but I thought wrong!

Weather & Snow Characteristics
Please provide details to help us determine the weather and snowpack during the time this observation took place.

10 degrees?

Down near rabbit creek trail it was nearly calm, but as you gained elevation to around the top of the willows the wind picked up. Very active wind transport, our skin track was started to be filled in after only ~30 minutes. 10mph, gusts to 30mph??

Snow surface

DEEP, standing in boots I sunk to my waist. Skiing was slow and required the mega lean back on 20-25 degree slopes. Almost too deep to be enjoyable if you can believe it.

Photos & Video
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