Avalanche Forecast
Issued: Dec 23rd, 2012 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Storm Slabs and Wind Slabs.
conrad janzen,
Parks Canada
Summary
Weather Forecast
Light amounts of precipitation and light winds from the W moving to the E are forecast over the next few days. Temperatures remain cool on the East side of the park with the influence of the arctic high, but will moderate slightly. The West side of the park will see more seasonal temperatures.
Snowpack Summary
At tree line 80cm of snow has fallen in the past 3 days with cool temperatures and light W winds. This snow is bonding well but is a significant load on any weaknesses in the snowpack. Buried wind slabs, and several early season crusts (mainly below 2000m) are under all this new snow and should still be considered as potential sliding layers.
Avalanche Summary
Surprisingly little avalanche activity has been observed with all the new snow. Loose snow avalanches up to size 1.5 have been observed out of very steep terrain at tree line and in the alpine. A couple of soft slabs up to size 2 have been seen out of steep wind loaded terrain at ridge crests, failing within the recent storm snow.
Confidence
Wind speed and direction is uncertain
Problems
Storm Slabs
Aspects: North, North East, East, South East.
Elevations: All elevations.
Likelihood
Expected Size
Wind Slabs
Aspects: North, North East, East, South East.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 26th, 2012 4:00PM
