- Submitted by
- Craig Hartmetz
- Observations date
- Saturday, April 25, 2020 at 14:00
- Location
- 52.723190° N 118.140220° W
- Reporting on
- Snow conditions
%2F-118.14022%2C52.72319%2C8%2C0%2C0%2F1026x200%3Faccess_token%3Dpk.eyJ1IjoiYXZhbGFuY2hlY2FuYWRhIiwiYSI6ImNqd2dvZmUxdzE4ZWg0M2tkaXpuNG95aTQifQ.pBLM87fE3sIxRJqJT7Bf7g&w=1200&q=75 "Chak Peak Deep Slab")
Quick
Avalanche
Snowpack
Weather
Incident
Information
- Avalanche date/time
- Sunday, April 25, 2021 at 14:00
- Estimated occurrence time of avalanche
- From 24 to 48 hours ago
- Number of avalanches in this report
- 1
- The size of avalanche
- 3
- Slab width
- 350m
- Run length
- 550m
- Avalanche Character
- Deep persistent slab
- Trigger type
- Natural
- Start zone aspect
- E
- Start zone elevation band
- Alpine
- Start zone elevation
- 2,460m
- Start zone incline
- 40°
- Runout zone elevation
- 2,100m
- Weak layer crystal type
- Depth hoar
- Facets
- Crust near weak layer
- Yes
- Wind exposure
- Lee slope
- Vegetation cover
- Open slope
Comments
Large deep persistent avalanche, running to ground, observed on the ridge north of Chak Peak. I suspect that this was cornice triggered and failed on a late fall (November) rain crust PWL. Crown and debris looked rather crisp and recent.
