Avalanche Forecast

Issued: Feb 18th, 2012 4:00PM

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

garth lemke, Parks Canada

Jasper.

The buried surface hoar will eventually become a concern raising the danger rating. It has been found preserved below treeline to specific alpine locations from 10 to 30mm tall. We are waiting for critical mass.

Summary

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Wind effect is extremely variable

Problems

Loose Dry

A surface hoar layer is buried a few cm's down. Flurries and winds are forecast now until Wednesday which will incrementally bury it deeper. The danger rating will increase once critical load achieved. Monitor this situation and natural activity.

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

Elevations: All elevations.

Likelihood

Unlikely

Expected Size

1 - 2

Deep Persistent Slabs

Conditions are generally stable but be cognisant of slopes threatened by large triggers such as overhead cornices on steep unsupported alpine features.

Aspects: North, North East, East.

Elevations: Alpine.

Likelihood

Unlikely

Expected Size

2 - 4

Valid until: Feb 19th, 2012 4:00PM