Avalanche Forecast
Regions: Jasper.
Weather Forecast
Temperatures cooling and freezing levels dropping to valley bottom for Friday with a clearing trend. Winds from the SW increasing on Friday. Light scattered snowfall Friday, increasing in intensity over the weekend, with an additional 20cm expected.
Snowpack Summary
20cm of new snow has arrived in the past 24 hours. This soft storm slab is bonding poorly to the old snow surface. The mid-pack consists of persistent slab layers intermixed with weak facets. The base is weak facets, depth hoar, and an ice crust from November. New windslabs forming with increased winds.
Avalanche Summary
Avalanche control work on the Icefield Parkway produced numerous slab avalanches to size 2.5, but control efforts were limited by weather. One large natural size 3.5 was observed in the alpine near Sunwapta - East aspect, 2700m and ran on the ground (deep persistent basal weakness). Numerous large natural avalanches were observed up Maligne.
Confidence
Avalanche Problems
Wind Slabs
Aspects: North, North East, East, South East, South.
Elevations: Alpine, Treeline.
Likelihood: Very Likely
Expected Size: 2 - 3
Deep Persistent Slabs
Aspects: All aspects.
Elevations: All elevations.
Likelihood: Likely - Very Likely
Expected Size: 2 - 4