Natural wind slab avalanches and storm slab instability on Andesite Peak.
Donner Summit Area
Observation Date and Time or Estimated Date and Time of Avalanche:
Saturday, December 1, 2018 - 11:00
39° 20' 59.5248" N, 120° 21' 54.6984" W
Is this an Avalanche Observation?:
Observation made by: Forecaster