Several storm slabs from mid-storm 11/28-29 were apparent on steep slopes and had avalanched mid-storm and spun back in. Crowns to 25cm within storm snow.
Signs of Unstable Snow
Did you see shooting cracks?
Did you experience collapsing or whumpfing?
40-50cm of low density storm now over the 11/22 facets/surface hoar. HS of 35 to 100cm depending on aspect. A few collapses in low flat areas and along rocky, shallow ridges.
Observed Avalanche Problem #1:
Poor structure matching that found by NWAC staff: recent storm snow over a pair of crusts sandwiching weak snow, with large, sugary basal facets at the ground. While the recent avalanches I observed were all from high precipitation rates mid-storm, once the new low-density snow settles or is sculpted by wind, there will be a slab over deep, large facets and surface hoard.