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Avalanche Forecast

Archived

Nov 24th, 2018–Nov 25th, 2018

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.

Regions

Jasper.

A holding pattern in the forecast will provide little change in the current snow conditions.Good turns can still be found on sheltered lee slopes.

Weather Forecast

Light amounts of snow forecasted for Monday, Tuesday. Temperatures will gradually rise through the week ranging from -10 to -4. Winds will remain in the Light to Moderate rang. Click here for the Avalanche Canada mountain weather forecast. No new snow is expected on Saturday.

Snowpack Summary

10-15cm of low density snow sits over a firm mid pack consisting mainly of facets. The primary layer of concern in the snowpack continues to be the October 25 crust. This crust is most prevalent in deeper snowpack areas predominately on N-NE lee features. Faceting above and below this layer continue to weaken the lower snowpack.

Avalanche Summary

Road patrol on 93N Saturday reported no new avalanche activity.

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.