Avalanche Forecast

Issued: Apr 14th, 2015 4:00PM

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

max darrah, Parks Canada

Jasper.

Good spring skiing at upper elevations in sheltered locations.

Summary

Weather Forecast

Cooling trend with light scattered snowfall up to 5cm and light to moderate Southwesterly winds.

Snowpack Summary

15cm to 20cm of recent storm snow has been whipped up by moderate winds into a windslab condition. This rests on a supportive temperature crust which exists up to 2500m.Weak basal facets are bridged by a strong mid-pack in most areas at treeline and above.

Avalanche Summary

Three cornice failures were noted yesterday. One initiated a size 2 slab on Parkers ridge.

Confidence

Problems

Wind Slabs

Wind slabs have formed on lee slopes and cross loaded features at alpine and exposed tree line elevations.

Use caution in lee areas. Recent wind loading have created wind slabs.Avoid cross loaded slopes at or above treeline.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 2

Cornices

Cornice are large and ominous. Give them a wide berth whenever possible.

Extra caution needed around cornices with current conditions.

Aspects: North, North East, East.

Elevations: Alpine.

Likelihood

Possible

Expected Size

1 - 2

Valid until: Apr 15th, 2015 4:00PM