Archived

Avalanche Forecast

Jan 6th, 2012–Jan 7th, 2012

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

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

2: Moderate

The avalanche danger rating below treeline will be moderate

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

Regions: Banff Yoho Kootenay.

Warm temps, little precip and light wind over the next few days is promoting a trend of decreasing hazard. The next storm system is expected late monday with more precip; this will drive the danger rating back up. Cornices are sensitive presently.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Wind speed and direction is uncertain on Sunday

Avalanche Problems

Wind Slabs

Subsequent to the Jan 4 wind/precip event windslabs are bonding uncharacteristically well to the old surface. These windslabs are between 10 and 25cm deep.

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

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 3

Deep Persistent Slabs

Human triggering is becoming less likely, however, consequences are high and avalanches will be big if triggered. Today, a lone skier remotely triggered a size in West Bowl, (Lake Louise). See picture @ acmg.ca/mcr

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 2 - 3