Avalanche Forecast

Issued: Mar 25th, 2012 4:00PM

The alpine rating is considerable, the treeline rating is moderate, and the below treeline rating is moderate. Known problems include Wind Slabs, Persistent Slabs and Loose Wet.

mike eder, Parks Canada

Jasper.

Summary

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Timing of incoming weather systems is uncertain on Tuesday

Problems

Wind Slabs

Moderate Southwest winds continue to build windslabs and cornices on Northerly aspects. Recent avalanches have started from rock bluffs or cornice failures and have triggered deeper weak layers.

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

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 2

Persistent Slabs

The buried surface hoar layer remains a concern in areas that have not recently avalanched. Whumphing was experienced in North aspect, open shaded glades below treeline today showing that this layer can still be reactive to light loads.

Aspects: All aspects.

Elevations: All elevations.

Likelihood

Possible

Expected Size

2 - 4

Loose Wet

Expected cloud cover should reduce the solar effect on the snowpack. If there are extended sunny periods, expect to see loose snow avalanches originating from steep rock bluffs.

Aspects: North, North East, East.

Elevations: Alpine.

Likelihood

Possible - Likely

Expected Size

1 - 2

Valid until: Mar 26th, 2012 4:00PM