Avalanche Forecast

Issued: Nov 27th, 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.

Early season hazards such as shallow snowpack areas, stumps and rocks still exist.

Summary

Weather Forecast

Very light precip amounts over the next 4 days will not contribute to drastic changes in the avalanche hazard rating.

Snowpack Summary

Surface hoar development to 2mm at treeline. Snowpack depths at treeline are 90cm on average. Snowpack stability tests indicated moderate shears on the Nov 6th crust in Little Yoho.

Avalanche Summary

Forecasting teams were in the Little Yoho and Sunshine areas today. No reported or observed avalanches today.

Confidence

Timing, track, or intensity of incoming weather system is uncertain on Thursday

Problems

Wind Slabs

Be cautious as you transition into wind affected terrain.

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

Elevations: Alpine.

Likelihood

Possible

Expected Size

1 - 3

Persistent Slabs

Avoid shallow snowpack areas where triggering is more likely.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Possible

Expected Size

2 - 4

Valid until: Nov 28th, 2012 4:00PM