Avalanche Forecast
Issued: Dec 13th, 2016 4:00PM
The alpine rating is Loose Dry, Wind Slabs and Persistent Slabs.
, the treeline rating is , and the below treeline rating is Known problems includeSummary
Weather Forecast
Temperatures to warm slightly before dropping again to -30 by Friday. No precipitation. Northwest winds to continue, making the alpine feel even colder. The intense ridgetop winds are expected to decrease in the next 48hours.Â
Snowpack Summary
Ongoing moderate Northwest winds redistributing cold snow, soft slab formation possible on lee features. Arctic cold temps have penetrated the shallow snowpack and are promoting facetting. Nov12 crust down 45 to 90cm and found between 2100-2600m on all aspects. Intense ridge top transport from the North reverse loading lee features in the alpine.
Avalanche Summary
Numerous loose dry avalanches on Westerly aspects up to Size 2 in Alpine terrain observed along the Icefields Parkway today. Recent shift of winds to the Northwest seem to have been the trigger for these events. One remotely triggered slab avalanche size1.5 was reported from the Boundary Glacier area on Monday, 2400m steep East facing planar slope.
Confidence
Problems
Loose Dry
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Wind Slabs
Aspects: North, North East, East, South East, South.
Elevations: Alpine.
Likelihood
Expected Size
Persistent Slabs
Aspects: All aspects.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Valid until: Dec 14th, 2016 4:00PM