- Submitted by
- hyland.backcountry.safety
- Observations date
- Thursday, March 30, 2017 at 19:00
- Location
- 54.703910° N 127.468940° W
- Reporting on
- Snow conditions
%2F-127.46894%2C54.70391%2C8%2C0%2C0%2F1026x200%3Faccess_token%3Dpk.eyJ1IjoiYXZhbGFuY2hlY2FuYWRhIiwiYSI6ImNqd2dvZmUxdzE4ZWg0M2tkaXpuNG95aTQifQ.pBLM87fE3sIxRJqJT7Bf7g&w=1200&q=75 "Microwave - Size 2 Cornice")
Quick
Avalanche
Snowpack
Weather
Incident
Information
- Avalanche date/time
- Thursday, March 30, 2017 at 12:00
- Estimated occurrence time of avalanche
- From 12 to 24 hours ago
- Number of avalanches in this report
- 1
- The size of avalanche
- 2
- Slab thickness
- 60cm
- Slab width
- 100m
- Run length
- 250m
- Avalanche Character
- Cornice with slab
- Trigger type
- Natural
- Start zone aspect
- NE
- Start zone elevation band
- Alpine
- Start zone elevation
- 1,700m
- Start zone incline
- 45°
- Wind exposure
- Lee slope
- Vegetation cover
- Open slope
Comments
Obs from an AST 2 course today. Recent ( 24 Hr) Cornice failure pulled slab in lee,steep, rocky terrain. Minimal propagation for the feature. Several other recent 72-96 Hr cornice triggered slabs also, up to Size 2.5 on NE aspects. Suspect windslab/Feb Crust/Facet interface combo
