Avalanche Forecast
Regions: Waterton Lakes.
Weather Forecast
Temperatures should remain below freezing at Little Prairie through Fri although there may be some solar heating. Moist Pacific air will start to affect the area as it approaches Sat with trace amounts of snow possible and maybe up to 15cm through Tuesday if the arctic air approaching over the prairies traps the moist air over the divide.
Snowpack Summary
A 5 to 15cm thick crust exists on solar aspects to ridgetop. On shaded aspects a 1cm temperature crust is found at 2200m and the snow remained dry at 2500m. Concern for both thin windslabs and the Dec facets and crust layer remains TL and above on shaded aspects with technicians finding sudden shears down 40 to 80cm on the Dec layer.
Avalanche Summary
Now that temperatures have cooled down natural avalanche activity has diminished however skier triggering remains a concern in specific areas : Treeline and above on shaded slopes.
Confidence
Avalanche Problems
Wind Slabs
Aspects: North, North East, East, South East.
Elevations: Alpine.
Likelihood: Unlikely - Possible
Expected Size: 1 - 2
Persistent Slabs
Aspects: North, North East, East, South East.
Elevations: Alpine, Treeline.
Likelihood: Possible
Expected Size: 1 - 3