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Avalanche Forecast

Archived

Dec 4th, 2018–Dec 5th, 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

Kananaskis.

Cooler temps on the way.  Great ice climbing conditions but watch for hard slab pockets.  The skiing is...thin.

Confidence

High -

Weather Forecast

Wednesday will be a similar day to tuesday in that skies will be clear, temps will be slightly cooler and no new snow is expected.  Now is the time to sacrifice some skis through the wood chipper to try and annoy mother nature and encourage some new snow!!!

Avalanche Summary

No new natural avalanche activity.

Snowpack Summary

Winds increased in the afternoon on Tuesday and the few cm of snow blew around returning the region to its moonscaped look.  Hard slabs that will fail in the facets overlying the October crust is the main concern at this time.  As the snowpack get the hollow feeling, especially in steeper or unsupported terrain such as between the pitches of ice climbs be heads up.  Low doesn't mean no...  Avalanches can still occur with human triggerring in certain areas.

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.