Avalanche Forecast
Issued: Jan 21st, 2017 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs and Wind Slabs.
snow safety,
Avalanche Canada
Watch for wind slabs or storm slabs on facets. This is still true for ice climbers at lower elevations.
Summary
Weather Forecast
Moderately cold temperatures, with sun and flurries are forecast for the area.
Snowpack Summary
30-50cm of storm snow sits over lower density facetted snow up to 1800. The storm snow sits over a generally well settled snowpack above this. Facet layers are still observed but are much less prevalent than out East. Storm slabs are extensive in the region and recent SW winds have formed wind slabs in alpine locations.
Avalanche Summary
The Yoho area was not observed today. Yesterday, numerous observations of storm slab failing on facets were observed below treeline.
Confidence
Problems
Storm Slabs
40cm of new snow has settled into slabs with the warm and humid weather. These will be most reactive at lower elevations in steep (35+ degree) terrain where they sit over facets. Cooling temperatures over the next few days should slow activity.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Wind Slabs
Recent moderate to strong SW winds have redistributed storm snow creating wind slabs in alpine locations.
Aspects: North, North East, East, South East.
Elevations: Alpine.
Likelihood
Expected Size
Valid until: Jan 22nd, 2017 4:00PM
