The whole Guye peak east couloir slid during a belayed ski cut. Crown depth ranged from a few inches to two feet.
Signs of Unstable Snow
Did you see shooting cracks?
Did you experience collapsing or whumpfing?
Generally a poor bond between the new and old snow. The ski cut at the top of the SE Couloir on Guye caused the entire couloir to fail, wall to wall, top to bottom and the crown followed the walls even into what we could perceive as islands of safety in the couloir.
Observed Avalanche Problem #1:
Storm slabs were widespread and easy to trigger. Depth was variable due to wind transport but storm slabs were present on both windward and leeward slopes with a high propensity for propagation.