Avalanche Forecast
Issued: Dec 21st, 2014 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs and Deep Persistent Slabs.
a.l. horton,
Parks Canada
Summary
Weather Forecast
Continued snow flurries with moderate W winds on Monday. Snow begins on Tuesday afternoon intensifying through the night and then tapering by Wednesday afternoon with up to 20 cm expected. Strong westerly winds will accompany this storm. Seasonal temperatures that will fall after the storm has past.
Snowpack Summary
Wind slab forming on lee alpine ridge lines. Large surface hoar crystals formed last week are being buried by new snow. This layer is more likely found on sheltered slopes at tree line reaching into the alpine. The interface between the strong mid-pack and weaker basal facets is most susceptible to human triggering from shallow rocky areas.
Avalanche Summary
Some minor loose snow sluffing on steep terrain. No slab avalanches reported today.
Confidence
Timing, track, or intensity of incoming weather system is uncertain on Tuesday
Problems
Wind Slabs
Aspects: North, North East, East, South East, South.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Deep Persistent Slabs
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 22nd, 2014 4:00PM
