Avalanche Forecast
Issued: Dec 10th, 2016 8:00AM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs.
Percy Woods,
Parks Canada
Strong winds have formed hard wind slabs in exposed terrain. Take time to evaluate the snowpack before deciding to travel into steeper wind loaded terrain.
Summary
Weather Forecast
The arctic ridge is well entrenched and cold temperatures and wind chill continues. Light snowfall, cloudy skies and alpine temperature of -12C is forecast for today. Sunday should be similar. Clear skies and temperatures plunging into the -20C range will start the new work week.
Snowpack Summary
Moderate to strong winds earlier in the week formed hard, variable windslabs that should be expected on exposed terrain at and above treeline. The bond of the most recent storm snow to the old snow surface is improving with field tests giving resistant results. The Nov 13 crust down 1-1.5m gives hard range deep tap test results.
Avalanche Summary
The most recent reported or observed avalanche activity is two days old. A skier triggered size 1.5 windslab on the SW aspect of Mt Cheops at 2300m. Pockets of windslab may still be reactive to human triggering especially in steeper terrain.
Confidence
The weather pattern is stable
Problems
Wind Slabs
Moderate to strong winds have created hard windslabs in exposed areas at and above treeline, and on all aspects. Cornices, unsupported features and steep cross-loaded terrain should be avoided. Evaluate wind loaded terrain before committing to it.
Avoid steep lee and cross-loaded slopesBe cautious as you transition into wind affected terrain.
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 11th, 2016 8:00AM
