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Avalanche Forecast

Apr 19th, 2012–Apr 20th, 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
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.

Should extended sunny periods combine with warm afternoon temperatures, the avalanche danger may increase quickly at all elevations.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Timing or intensity of solar radiation is uncertain on Friday

Avalanche Problems

Loose Wet

Warmer temperatures and sunny skies will increase the likelihood of these avalanches. These slides may trigger slab avalanches deeper in the snowpack, especially around convexities near treeline.

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

Elevations: All elevations.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2

Wind Slabs

Windslabs are present below corniced ridgelines. These slabs have not been reactive in the past week, however, warm temps and solar exposure may wake them up.

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

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2

Deep Persistent Slabs

This layer is now buried by a settled upper snowpack. Triggering of this layer is still possible especially from a thin spot.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 2 - 4