Quick report
- Cracking
- widespread
- Collapsing
- widespread
I experienced widespread collapsing and associated cracking. This started at the valley floor and continued to my highpoint around 8,800'
Weather
- Recent Snowfall
- 1 cm
Precipitation starting as light snowfall in Smiley around 1530. 1 cm accumulation by exit from field at 1900. Skies generally overcast with occasional holes allowing for some stars to shine through. Winds were calm to light, but sounded like it was blowing up higher in exposed terrain.
Snowpack
A great night to be a snow and avalanche nerd! Walking across the flats I found a nice rain crust that formed the previous day. This made for some unique-sounding collapses.... I could hear the crust hissing/tearing/sizzling as the collapses propagated away from me. I collapsed most low elevation slopes that I walked across, then collapsed them again on the walk back. This crust continues as a rain crust to around 8200 or so, where it begins to fade rapidly. There are obvious signs of the ambient warm temps above, but no icy crust.
I continued up, walking above some short but serious paths (ugly terrain traps). Here I remotely triggered 2 slides that failed on E-facing slopes above a steep gully. Slopes above the crown were spiderwebbed, with up to 7-8cm displacement across the cracks in places. The closer slide to be initiated about 100 vertical feet downslope from me and broke roughly 200 feet wide. The second slide opened up roughly 900-1000 feet up the gully from the first slide and triggering location. The vertical on both slides was short, but in any other terrain these would be D2s. Both slides piled up debris deeply in the gully, an estimated 12-15 feet deep below the larger slide.
Avalanche
Visibility was limited by lack of light so I could not report avalanches in the surrounding terrain. I remotely triggered a set of avalanches that dumped down into a nasty terrain trap below. The slides were small due to the short path length, but notable due to their characteristics (remotely triggered from long distances away).