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Avalanche Forecast

Archived

Dec 9th, 2018–Dec 10th, 2018

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.

Regions

Jasper.

Good skiing can be located in sheltered treeline locations with some facet surface powder. Wind effect is variable in the alpine.

Weather Forecast

Monday will be cloudy with flurries, trace snow amounts, alpine high -8 and light SW winds gusting to 40km/hr. 6cm of snow may arrive Tuesday and only a trace on Wednesday. Click here for a detailed mountain weather forecast from Avalanche Canada

Snowpack Summary

Previous alpine winds have made for variable surface conditions and formed small isolated pockets of thin windslab in the alpine. The Oct 25th crust can be found 30cm off the ground and likely encountered between 1800-2,700m. The snow cover below treeline is thin. Surface hoar has formed sporadically at valley bottoms last week up to 20mm.

Avalanche Summary

No patrol today and nothing new reported. Yesterday a few small surface loose avalanches noted in very steep alpine terrain. Remember to share the conditions found on your trip this weekend with Avalanche Canada's, Mountain Information Network

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.