| Trigger | Unknown | Remote Trigger | Unknown |
| Avalanche Type | Unknown | Aspect | South Southeast |
| Elevation | 3500ft | Slope Angle | unknown |
| Crown Depth | unknown | Width | unknown |
| Vertical Run | 600ft |
Avalanche: Chugach State Park
Location: Peak 3
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
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.
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
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.
Peak 3 gully on right. Debris on center left. Right around here is where we triggered the whumph.