Archived

Avalanche Forecast

Nov 19th, 2011–Nov 20th, 2011

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

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

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

Regions: Jasper.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Timing of incoming weather systems is uncertain

Avalanche Problems

Wind Slabs

Slopes below ridge lines and on cross loaded features between 2600 and 2900m have produced natural avalanches in the past 48 hours.

Aspects: North, North East.

Elevations: Alpine.

Likelihood: Possible - Likely

Expected Size: 1 - 3

Persistent Slabs

Slabs created by previous Moderate W to NW winds overlay weak basal facets. A large load (surface avalanche, numerous skiers on the slope) could trigger this layer.

Aspects: North, North East.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 2 - 3