Archived

Avalanche Forecast

Jan 5th, 2012–Jan 6th, 2012

Alpine

3: Considerable

The avalanche danger rating in the alpine will be considerable

Treeline

3: Considerable

The avalanche danger rating at treeline will be considerable

Below Treeline

2: Moderate

The avalanche danger rating below treeline will be moderate

Alpine

3: Considerable

The avalanche danger rating in the alpine will be considerable

Treeline

3: Considerable

The avalanche danger rating at treeline will be considerable

Below Treeline

2: Moderate

The avalanche danger rating below treeline will be moderate

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

2: Moderate

The avalanche danger rating below treeline will be moderate

Regions: Banff Yoho Kootenay.

Significant precipitation last night and this morning has increased the load over the deep persistent weak layer of basal facets. Any avalanches triggered on this layer will be significant.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Avalanche Problems

Wind Slabs

Wind slabs up to 1m deep can be triggered by a person in avalanche terrain. An additional 20 to 30 cm of snow in the past 24 hours has increased the likelihood of triggering these slabs.

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

Elevations: Alpine.

Likelihood: Possible - Likely

Expected Size: 1 - 3

Deep Persistent Slabs

If surface slabs are triggered, they now have enough mass that stepping down to the basal facets is likely especially on larger slopes that have not yet avalanched.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 2 - 3