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Avalanche Forecast

Archived

Mar 5th, 2015–Mar 6th, 2015

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

Regions

Kananaskis.

Freezing levels are going to rise over the next few days. Luckily our forecast shows mostly cloud cover, but if that changes watch the solar aspects.

Confidence

Good

Weather Forecast

The winds will continue to haul overnight. Tomorrow will see them rise with gusts up to 85km/hr from the west. The ambient temperature will rise to -4, but the wind will make it feel much cooler. Some flurries tomorrow with a mostly cloudy sky.

Avalanche Summary

no activity today

Snowpack Summary

Once again there was little change today. The alpine has had significant wind action that has stripped most of the available snow. Again, we're left with breakable hardslab on almost all aspects. Open areas at treeline have also seen widespread wind effect that has done a good job of removing any available snow. The north winds from a few days ago have managed to sneak into the nooks and crannies that held decent skiing. Very sheltered and shaded areas at treeline with a SE aspect might still hold snow.

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.