Archived

Avalanche Forecast

Jan 18th, 2012–Jan 19th, 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

3: Considerable

The avalanche danger rating below treeline will be considerable

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

Regions: Glacier.

Avalanche Problems

Wind Slabs

Overnight winds from the south have produced slabs on exposed terrain from below tree line to alpine ridges. An early morning avalanche cycle east of Rogers Pass and recent tests confirm slab failures on lee and cross loaded features likely today

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

Elevations: All elevations.

Likelihood: Possible

Expected Size: 2 - 3

Loose Dry

It has snowed 65cm of light dry powder over the last 4 days. This snow will sluff in steeper terrain, especially where not avalanched. Winds over the last 4 days have effected this snow in exposed terrain. Use caution where soft slabs exist.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Likely

Expected Size: 1 - 3

Storm Slabs

A freezing rain crust down 50 - 60cm is more prevalent west of Rogers Pass summit, shows signs of strengthening but skier triggering remains possible. This layer may be triggered by avalanches triggered higher in the snowpack.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 3