Archived

Avalanche Forecast

Feb 29th, 2012–Mar 1st, 2012

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

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

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: Jasper.

The Valentine's day surface hoar is still present in isolated sheltered lee features with burial depths ranging from 10cm to 75cm. Any significant new snow and wind will overload this weak layer.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Forecast snowfall amounts are uncertain

Avalanche Problems

Wind Slabs

At higher elevations, hard windslabs may be sitting on the Valentine's surface hoar. On southerly aspects, this surface hoar has formed on top of a sun crust. Slabs on these features could most easily be triggered on unsupported terrain features.

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 3

Loose Dry

Loose surface facets can be found on sheltered slopes at higher elevations. On steeper slopes, these are producing small loose avalanches that may have enough mass to knock over a skier or pry off an ice climber.

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

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2