- Submitted by
- snow.safety
- Observations date
- Wednesday, December 23, 2020 at 18:20
- Location
- 51.209960° N 116.110450° W
- Reporting on
- Snow conditions
%2F-116.11045%2C51.20996%2C8%2C0%2C0%2F1026x200%3Faccess_token%3Dpk.eyJ1IjoiYXZhbGFuY2hlY2FuYWRhIiwiYSI6ImNqd2dvZmUxdzE4ZWg0M2tkaXpuNG95aTQifQ.pBLM87fE3sIxRJqJT7Bf7g&w=1200&q=75 "Whymper South paths")
Quick
Avalanche
Snowpack
Weather
Incident
Information
- Avalanche date/time
- Wednesday, December 23, 2020 at 11:20
- Estimated occurrence time of avalanche
- Less than 12 hours ago
- Number of avalanches in this report
- 1
- The size of avalanche
- 3
- Slab width
- 150m
- Run length
- 1,300m
- Avalanche Character
- Cornice with slab
- Trigger type
- Explosives
- Trigger subtype
- Intentional
- Start zone aspect
- SE
- Start zone elevation band
- Alpine
- Start zone elevation
- 2,500m
- Runout zone elevation
- 1,800m
- Vegetation cover
- Open slope
Comments
Avalanche control with explosives on Whymper south. Evidence of previous activity during the storm last 48 hours. We triggered a size 2 and a size 3. Size 3 resulted from dropping a large cornice on the slope below which triggered a slab and ran a long distance. Hard to tell, but it seemed like the slab was recent storm snow and not down to the deeper, persistent layers.
