Avalanche Forecast

Issued: Dec 2nd, 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 Persistent Slabs.

aaron beardmore, Parks Canada

Banff Yoho Kootenay.

The new snow on Sunday has refreshed the surface with the consequence of better ski quality. Use normal precautions and diligence when heading out into the back-country over the next few days.

Summary

Weather Forecast

Unsettled weather bringing incremental amounts of snow over the next few days will not change the danger rating drastically.

Snowpack Summary

< 5cm of new snow over the course of the day accompanied with light wind have generated soft wind-slabs at high elevations. Likely, these wind-slabs are not more than 20cm thick. Furthermore, the Nov 6 crust remains a concern, down 80cm.

Avalanche Summary

No avalanche activity observed or reported today.

Confidence

Intensity of incoming weather systems is uncertain on Tuesday

Problems

Wind Slabs

Approx. 5cm of new snow and light West wind will create soft wind slabs in alpine terrain.

Be cautious as you transition into wind affected terrain.

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

Elevations: Alpine.

Likelihood

Possible

Expected Size

1 - 2

Persistent Slabs

While it is unlikely, triggering this layer is still possible. It is located 50-90cm below the surface. Use caution and consider this layer when venturing into larger terrain.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

1 - 3

Valid until: Dec 3rd, 2012 4:00PM