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Avalanche Forecast

Archived

Apr 12th, 2015–Apr 13th, 2015

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

Regions

Jasper.

Good skiing can still be found in sheltered areas at treeline.

Weather Forecast

Continuing blustery conditions and flurries with a pulse of snow forecast for Tuesday as the winds ease and become northerly. Wednesday looking like a good day to get out and enjoy some 'Pow Pow".

Snowpack Summary

15cm to 20cm of storm snow has fallen onto a generally supportive temperature crust which exists up to 2500m. Good ski conditions were found in the Columbia Icefields area in sheltered locations. Weak basal facets are bridged by a strong mid-pack in most areas at treeline and above.

Avalanche Summary

Limited observations on 93 south today due to poor visibility and blowing snow.

Confidence

Intensity of incoming weather systems is uncertain 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.