Avalanche Forecast

Issued: Jan 3rd, 2015 4:00PM

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

steve blagbrough, Parks Canada

Jasper.

Arctic blast continues on Sunday.....Brrrrrrrrrrrr.....Again.

Summary

Weather Forecast

The arctic blast continues with a few flurries and light northerly but very cold winds.

Snowpack Summary

Mid pack carrying well for skiing at treeline. Exposed alpine features scoured of snow. Ice becoming very brittle in these arctic conditions.

Avalanche Summary

No new avalanche activity observed in the forecast area.

Confidence

Intensity of incoming weather systems is uncertain on Monday

Problems

Wind Slabs

Light to moderate variable winds are producing soft slabs on sheltered slopes and cross loaded features primarily in the alpine.

Be cautious as you transition into wind affected terrain.

Aspects: All aspects.

Elevations: Alpine.

Likelihood

Possible

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 4th, 2015 4:00PM