Archived

Avalanche Forecast

Jan 15th, 2012–Jan 16th, 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

4: High

The avalanche danger rating in the alpine will be high

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

Regions: Glacier.

Winds have been at loading values in the alpine and treeline zones, watch out for soft wind slabs, and fast sluffing in the new snow.

Avalanche Problems

Loose Dry

A storm has deposited 40cm of very light snow over the last 48 hrs. This new snow is likely to sluff in steeper terrain. Winds were at loading values overnight and may have formed soft slabs. Use caution where slabby.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Likely - Very Likely

Expected Size: 2 - 3

Wind Slabs

Wind slabs continue to remain a concern at high elevations in the alpine. Use caution in the lee of alpine ridge crests and on cross loaded features. Sluffs in the new snow may trigger this layer causing larger avalanches.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 2 - 3

Storm Slabs

A freezing rain crust down 50 - 60cm more prevalent west of Rogers Pass summit, shows signs of strengthening but skier triggering remains possible.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 2 - 3