Avalanche Forecast
Issued: Dec 10th, 2019 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs, Persistent Slabs and Loose Dry.
Jasper Snow Safety,
Parks Canada
Cross-loading and reverse wind loading has created widespread windslab through the region in open areas, on many aspects at treeline and above.
Summary
Weather Forecast
A series of weak pacific disturbances will pass over the region for the next 72hrs under a westerly atmospheric flow bringing very light precipitation to upper elevations and cool seasonal temps.
For More details: Mountain Weather Forecast
Snowpack Summary
Recent snow remains unconsolidated except where exposed to wind and soft slabs have been formed. The snow depth is variable at all elevations. There is a crust/facet layer distributed through the region in the mid-pack with mixed reactivity and a weak basal facet/depth hoar layer at the base of the pack.
Avalanche Summary
No new avalanche observations or reports from the region
Confidence
Problems
Wind Slabs
Wind slabs are present on lee slopes and cross-loaded features
- Use caution in lee areas. Recent wind loading has created wind slabs.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Persistent Slabs
Isolated to very specific sheltered locations at treeline.
- Dig down to find and test weak layers before committing to a line.
Aspects: All aspects.
Elevations: Treeline.
Likelihood
Expected Size
Loose Dry
Specific to steep terrain. Ice climbers should pay particular attention to this as entrenched loose snow may have the volume to knock climbers off their stance.
- 874
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Dec 11th, 2019 4:00PM
