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Avalanche Forecast

Archived

Feb 23rd, 2015–Feb 24th, 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

Jasper.

Variable spring like conditions exist out there. Be reminded that cornices are big and always a concern.Stick to the shade or get high for some hope of a good turn!

Weather Forecast

Tuesday's forecast appears to be the beginning of the steady cooling tread that is expected to continue over the rest of the week. Increased clouds and strong high elevation SW winds expected at ridge top with light snow flurries Wednesday. Maybe not a enough to get too excited about but perhaps a little dust on crust? 

Snowpack Summary

Expect a new sun crust on steeper solar aspects up to 2300m with Mondays warm blast of sun. A mixture of rounded and facetted layers are sandwiched between upper layers and the weak depth hoar/ facets prevalent in the lower snowpack down to ground.

Avalanche Summary

No new avalanches were observed or reported today.

Confidence

Due to the number of field observations on Tuesday

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.

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.