Archived

Avalanche Forecast

Nov 27th, 2012–Nov 28th, 2012

Alpine

2: Moderate

The avalanche danger rating in the alpine will be moderate

Treeline

2: Moderate

The avalanche danger rating at treeline will be moderate

Below Treeline

1: Low

The avalanche danger rating below treeline will be low

Alpine

2: Moderate

The avalanche danger rating in the alpine will be moderate

Treeline

2: Moderate

The avalanche danger rating at treeline will be moderate

Below Treeline

1: Low

The avalanche danger rating below treeline will be low

Alpine

3: Considerable

The avalanche danger rating in the alpine will be considerable

Treeline

2: Moderate

The avalanche danger rating at treeline will be moderate

Below Treeline

1: Low

The avalanche danger rating below treeline will be low

Regions: Banff Yoho Kootenay.

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

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

Avalanche 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