Avalanche Forecast

Issued: Jan 5th, 2015 4:05PM

The alpine rating is considerable, the treeline rating is moderate, and the below treeline rating is low. Known problems include Wind Slabs and Deep Persistent Slabs.

steve blagbrough, Parks Canada

Jasper.

Snowfall warning in effect for the Jasper area with 10cm to 20cm forecast throughout the bulletin region.

Summary

Weather Forecast

Snowfall warning in effect for the Jasper area with 10cm to 20cm forecast throughout the bulletin region.

Snowpack Summary

Mid pack carrying well for skiing. Exposed alpine features scoured of snow..

Avalanche Summary

No avalanches reported today.

Confidence

Problems

Wind Slabs

Westerly winds are leading to a build up of wind slab on sheltered slopes and cross loaded features.

Be cautious as you transition into wind affected terrain.Be careful with wind loaded pockets while approaching and climbing ice routes.

Aspects: North, North East, East, South East, South.

Elevations: Alpine, Treeline.

Likelihood

Possible - Likely

Expected Size

1 - 2

Deep Persistent Slabs

This weak layer exists below a strong mid-pack at treeline and sub-alpine elevations. Large loads such as a cornice collapse or surface slides could still possibly trigger this deep persistent weakness.

Carefully evaluate and use caution around thin snowpack areas.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

1 - 2

Valid until: Jan 6th, 2015 4:00PM