Avalanche Forecast

Issued: Jan 5th, 2013 9:36AM

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

Avalanche Canada mpeter, Avalanche Canada

Summary

Confidence

Fair - Intensity of incoming weather is uncertain

Weather Forecast

Sunday: A Mix of sun and cloud, with a chance of light flurries. Winds could turn Northwesterly with gusts up to 50 km/h. Temperatures should reach -5.Monday: Continued mixed skies with isolated flurries. Winds continue Northwesterly with stronger gusts and temperatures peak around -10.Tuesday: Cloudy with light snow. Winds slow and turn Southwesterly and temperatures should be steady around -10.

Avalanche Summary

Isolated sluffing continues. This issue is magnified by solar radiation on sunny slopes.

Snowpack Summary

Lots of snow depth and surface condition variability exists in the region. Hard windslabs can be found on North and East facing terrain due to previous moderate and strong South and West winds. The windward slope are hard pressed and in many locations scoured down to very shallow snow depths (or to rock!). In more sheltered areas, the cold nights have facetted the upper snowpack, leaving the surface snow soft. Surface hoar is growing in these sheltered locations as well. A sun crust has formed on steep South facing slopes.The mid pack is well settled and strong. This overlies one or two crusts (location specific) with the higher crust being as shallow as 70cm below the surface. Concern lingers (unlikely) for triggering a deep slab avalanche in a shallow snowpack area.

Problems

Wind Slabs

An icon showing Wind Slabs
Windslabs linger in high, exposed lee and cross loaded terrain. The changing winds may build new slabs in unusual locations.
Be aware of the potential for wide propagations due to the presence of hard windslabs.>Use ridges or ribs to avoid pockets of wind loaded snow.>

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

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

1 - 4

Valid until: Jan 6th, 2013 2:00PM