Archived

Avalanche Forecast

Feb 2nd, 2012–Feb 3rd, 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

1: Low

The avalanche danger rating below treeline will be low

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

Alpine

2: Moderate

The avalanche danger rating in the alpine will be moderate

Treeline

1: Low

The avalanche danger rating at treeline will be low

Below Treeline

1: Low

The avalanche danger rating below treeline will be low

Regions: Jasper.

Heads up to ice climbers: Friday PM is expected to have a dramatic spike of freezing levels to above 2600m; West and Southwest exposed climbs would be threatened by this rapid warming, especially combined with expected strong solar radiation.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Freezing levels are uncertain on Friday

Avalanche Problems

Wind Slabs

Moderate winds and warm temperatures have formed hard slabs in all wind-exposed areas.

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

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2

Deep Persistent Slabs

Large triggers like a cornice failure could initiate a slide in this weak layer at the base of the snowpack. Shallow snowpack areas near exposed rocks are another potential trigger site.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 2 - 3