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: Little Yoho.

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.

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