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Avalanche Forecast

Archived

Apr 24th, 2015–Apr 25th, 2015

Alpine
Below Threshold.
Treeline
Below Threshold.
Below Treeline
Below Threshold.
Alpine
Below Threshold.
Treeline
Below Threshold.
Below Treeline
Below Threshold.
Alpine
Below Threshold.
Treeline
Below Threshold.
Below Treeline
Below Threshold.

Regions

Jasper.

10-20 cm of new snow will make for good skiing on Saturday and Sunday morning.  Be prepared for loose wet avalanches starting on Sunday with warming temperatures and sunny skies.

Weather Forecast

Continuing snow through Saturday with totals reaching 20 cm.  Winds light Easterly switching to Westerly as storm passes.  Temperatures rising Sunday and into the week with sunny skies.

Snowpack Summary

10-15 cm of new snow with no wind over a strong melt freeze crust on all but North aspect alpine slopes. 

Avalanche Summary

No new avalanches observed.

Confidence

Problems

Cornices

Cornice Fall is the release of an overhanging mass of snow that forms as the wind moves snow over a sharp terrain feature, such as a ridge, and deposits snow on the downwind (leeward) side. Cornices range in size from small wind drifts of soft snow to large overhangs of hard snow that are 30 feet (10 meters) or taller. They can break off the terrain suddenly and pull back onto the ridge top and catch people by surprise even on the flat ground above the slope. Even small cornices can have enough mass to be destructive and deadly. Cornice Fall can entrain loose surface snow or trigger slab avalanches.