Avalanche Forecast

Issued: Mar 25th, 2015 4:00PM

The alpine rating is moderate, the treeline rating is low, and the below treeline rating is low. Known problems include Wind Slabs and Deep Persistent Slabs.

deryl kelly, Parks Canada

Jasper.

Skip work and get out and get some turns or swing the tools folks, winter's almost over. You're going to miss it when it's gone!

Summary

Weather Forecast

The weather pattern will remain stable for the day Thursday; full cloud cover, moderate SE-ly winds with some local variation, small inputs of snow and freezing levels are to remain below 2000ms. Mild sub-zero temperatures and brisk winds should keep the snow surface dry and anything left available to transport will continue to load lee features.

Snowpack Summary

Until we have a significant change in snow or sun there will be little modification to the danger. Local variations though forecast area (near townsite) with significant rising daytime temps, freezing levels or snow inputs will weaken the bond on the storm slab at the surface on steeper slopes, especially on solar aspects or lower elevations.

Avalanche Summary

Field reports found no new activity to report.

Confidence

Intensity of incoming weather systems is uncertain

Problems

Wind Slabs

Quite variable but generally well bonded soft slabs and windslabs in lee features in the alpine and at treeline. Not likely to see much in natural activity but may be possible to trigger underfoot.

Use caution in lee areas. Recent wind loading have created wind slabs.

Aspects: North, North East, East, South East, South.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 2

Deep Persistent Slabs

Large cornices or surface avalanches are the likely trigger.

Give cornices a wide berth when travelling on or below ridges.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

2 - 3

Valid until: Mar 26th, 2015 4:00PM