Avalanche Forecast

Issued: Dec 15th, 2016 4:00PM

The alpine rating is low, the treeline rating is low, and the below treeline rating is low. Known problems include Loose Dry and Persistent Slabs.

max darrah, Parks Canada

Jasper.

Enjoy the crisp weather and clear skies.

Summary

Weather Forecast

Thursday and Friday temperatures will hover between -20 to -30 with light North winds and clear skies. Gradual warming trend toward Sunday, accompanied by light snowfall and an increase in Westerly winds.

Snowpack Summary

Tuesday's moderate Northwest winds redistributed snow with soft slab formation possible on lee features. There was intense ridge top transport from the North in the alpine on Tuesday. Cold temps are promoting facetting throughout the snowpack. Nov12 crust down 45 to 90cm and found between 2100-2600m on all aspects.

Avalanche Summary

No new avalanches observed or reported.

Confidence

Problems

Loose Dry

Cold temps have weakened the snow clinging to steep terrain, and as a result shedding and sluffing should be expected.

Avoid travelling on ledges and cliffs where sluffing may have severe consequences.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

1 - 2

Persistent Slabs

Although this layer has been dormant, it is still a concern and is widespread between 2100-2600m.

Be cautious in shallow snowpack areas where triggering is more likely.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

1 - 3

Valid until: Dec 16th, 2016 4:00PM