Avalanche Forecast

Issued: Nov 16th, 2017 4:00PM

The alpine rating is moderate, the treeline rating is low, and the below treeline rating is below threshold. Known problems include Wind Slabs.

deryl kelly, Parks Canada

Jasper.

Beautiful skiing found in sheltered areas in the Icefields today. Go get it before the wind does!!

Summary

Weather Forecast

Overnight cooling with am temps forecast to be -15 to -20. Trace amounts of precip. Generally light sw winds, gusting to moderate values over the day.

Snowpack Summary

Only trace amounts of snow below 1700m. Above 2000m, a generally strong, and supportive early winter snowpack exists with depths ranging from 30 to 100+ cm depending on aspect and exposure to wind. Wind effect on recent snow isolated to exposed slopes and ridge tops in the alpine. New snow remains well preserved on sheltered aspects.

Avalanche Summary

Minimal natural activity observed today; 1 small slab out of extreme terrain. Climbers should still remain vigilant as even triggering a small avalanche in a gully feature or above cliffs can have severe consequences.

Confidence

Due to the number and quality of field observations

Problems

Wind Slabs

Isolated wind slab 20-30 deep predominately on exposed alpine lees. Human triggering possible in the alpine.

Be careful with wind loaded pockets while approaching and climbing ice routes.Avoid terrain traps, such as gullies, where the consequences of a small avalanche could be serious.

Aspects: North, North East, East, South East, South.

Elevations: Alpine.

Likelihood

Possible

Expected Size

1 - 2

Valid until: Nov 17th, 2017 4:00PM