Archived

Avalanche Forecast

Mar 5th, 2012–Mar 6th, 2012

Alpine

4: High

The avalanche danger rating in the alpine will be high

Treeline

4: High

The avalanche danger rating at treeline will be high

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

4: High

The avalanche danger rating at treeline will be high

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: Jasper.

Highway 93 and Maligne Lake Road closed. Avalanche control Tuesday with expected re-opening Wednesday.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Intensity of incoming weather systems is uncertain

Avalanche Problems

Storm Slabs

Heavy snow and moderate to strong SW winds is expected to continue through the evening. A widespread wind/storm slab condition is producing large natural avalanches, especially in the alpine. Avoid all avalanche terrain.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Certain

Expected Size: 2 - 4

Persistent Slabs

Open slopes on Northeast to South aspects have slabs that are sitting on surface hoar 20-60cm down. On southerly aspects, the surface hoar formed on a sun crust, increasing the possibility of remote triggering and wide propagations.

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

Elevations: Alpine, Treeline.

Likelihood: Very Likely

Expected Size: 2 - 4