Detailed Observation
Date | 2021-10-10 |
Location | Eastern Alaska Range |
Observer | Nathan Fogell |
Avalanche | N |
General Observations
Rainbow Peak climb attempt.
observation 1:
test pit: 5,074ft South facing
CTN (no fracture)
32 degree slope, 65cm snow depth, ~63cm knife hard wind slab with facets forming on Rocky bed surface.
Observation 2: 6,650ft
40 degree slope, ~ 66cm snow depth, full depth knife hard wind slab. Facets on Rocky bed surface. stepped forward and heard Whumphing, collapse, and propagation ~20ft in every direction. No visible cracks, retreated down couloir.