Avalanche Forecast

Archived

Jan 15th, 2020–Jan 16th, 2020

Alpine

Natural avalanches unlikely, human triggered possible.

Treeline

Natural avalanches unlikely, human triggered possible.

Below Treeline

Natural avalanches unlikely.

Alpine

Natural avalanches unlikely, human triggered possible.

Treeline

Natural avalanches unlikely, human triggered possible.

Below Treeline

Natural avalanches unlikely.

Alpine

Natural avalanches unlikely, human triggered possible.

Treeline

Natural avalanches unlikely, human triggered possible.

Below Treeline

Natural avalanches unlikely.

Regions

Jasper.

Traces of new snow and a general warming trend leading into the weekend.

Weather Forecast

The arctic air remain dominate as a series of low pressure systems from the south bring light flurries to our region. A "warming", (aka: warmer than lately) trend is moving into the region as we approach the weekend.

Avalanche Canada's Mountain Weather Forecast product now includes a more specific Alberta Rockies synopsis.

Snowpack Summary

Surface faceting at all elevations. Weakening midpack comprised of mixed forms and facets, bridging basal facets and DH. HS Average at TL: ~150cm.

Avalanche Summary

No new avalanches observed or reported

Confidence

Problems

Deep Persistent Slabs

Deep Persistent Slab avalanches are the release of a thick cohesive layer of hard snow (a slab), when the bond breaks between the slab and an underlying persistent weak layer deep in the snowpack. The most common persistent weak layers involved in deep, persistent slabs are depth hoar or facets surrounding a deeply buried crust. Deep Persistent Slabs are typically hard to trigger, are very destructive and dangerous due to the large mass of snow involved, and can persist for months once developed. They are often triggered from areas where the snow is shallow and weak, and are particularly difficult to forecast for and manage.