Avalanche Forecast

Issued: Jan 9th, 2012 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 Deep Persistent Slabs.

Aaron Beardmore, Parks Canada

Banff Yoho Kootenay.

An additional 10cm is possible tonight, but this will not affect the danger ratings. Another significant input is needed before danger ratings change. Remain vigilant with terrain choices as potential for large avalanches is still possible.

Summary

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Due to the number of field observations

Problems

Wind Slabs

These hard windslabs are between 10 and 25cm deep. Any new snow may hide these windslabs that up until recently have been active. It may still be possible to trigger this layer in select features from a thin edge of the slab.

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

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

1 - 3

Deep Persistent Slabs

Although the forecasted precipitation didn't materialize, deep persistent slabs are still a concern. This condition represents low likelihood but high consequence situation. Be vigilant in terrain choices.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

2 - 3

Valid until: Jan 10th, 2012 4:00PM