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Avalanche Forecast

Dec 10th, 2019–Dec 11th, 2019
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
Treeline
2: Moderate
The avalanche danger rating at treeline will be moderate
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Jasper.

Cross-loading and reverse wind loading has created widespread windslab through the region in open areas, on many aspects at treeline and above.

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

Avalanche 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: Unlikely - Possible

Expected Size: 1 - 3

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: Unlikely - Possible

Expected Size: 1 - 2

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: Unlikely - Possible

Expected Size: 1 - 2