Avalanche Forecast

Issued: Jan 28th, 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 and Deep Persistent Slabs.

mike eder, Parks Canada

Jasper.

The Icefields Parkway will have periodic closures on Monday for avalanche control.

Summary

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Forecast snowfall amounts are uncertain

Problems

Wind Slabs

Moderate to strong SW winds continue to redistribute recent storm snow at treeline and in the alpine. Additional snow on Saturday night will contribute to slab development.

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

Elevations: Alpine, Treeline.

Likelihood

Possible - Likely

Expected Size

1 - 2

Deep Persistent Slabs

This facetted weak layer is most easily detected in shallow snowpack areas at tree line and above. Steep rocky alpine faces still seem to produce avalanches on this layer although these observations are infrequent.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

2 - 3

Valid until: Jan 29th, 2012 4:00PM