Observation: Public
Observation Details
Name:
Dallas GlassObservation Date:
February 13, 2021Submitted:
February 13, 2021Zone or Region:
West SouthActivity:
Skiing/SnowboardingLocation:
Twin Peak area: White PassTriggered Avalanches
Did you trigger any avalanches?
YesWas it intentional?
NoAvalanche Type:
Soft SlabSize:
Size 2: Could bury, injure, or kill a personElevation:
5400Aspect:
NWComments:
We were skiing in treed terrain between 5500 and 4500'. I triggered a small loose dry avalanche on a convex test slope. This slide continued to run down the slope, then remotely triggered a much larger avalanche on a nearby open and rocky slope. The slide was 18" deep and about 200' wide, wrapping around several terrain features. It only ran about 100 vertical feet down the slope due to the thicker forest. The slide failed on the 2/11 interface at the base of this recent series of storms. Small 1mm facets were found at the interface.Photo:
Signs of Unstable Snow
Did you see shooting cracks?
Yes, IsolatedDid you experience collapsing or whumpfing?
NoObservations
Terrain: We skied the same terrain as my 2/12 observation, Twin Peaks area. 5500-4500' W-NNE aspects.
Snowpack: New snow ~14" (35cm). Snow over the 2/11 18-20" (45-50cm). Wind affects well below treeline. Many short shooting cracks on convex rollovers, the edges of turns, and switchbacks in the skin track.
Weather: Cold. 5-11F Winds light ESE, Precip: Light snow showers (S1) nearly all day. No blowing snow.
Media
