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Archived

Avalanche Forecast

Apr 5th, 2012–Apr 6th, 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
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: Banff Yoho Kootenay.

There has not been enough spring like weather to create a strong spring snowpack that is typical for this time of year. Decision making and travel should be based on the fact that it is still a late winter snowpack.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Avalanche Problems

Wind Slabs

Fresh wind slabs may be found in the alpine. Be extra careful in the immediate lees of alpine ridges, and on steep convex rolls.

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

Elevations: Alpine.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2

Loose Wet

On solar aspects the recent storm snow is sitting on several well developed sun-crusts. These sun crust may provide a good sliding interface. Be careful on solar aspects especially in the afternoon when these slopes warm up.

Aspects: North, North East, East.

Elevations: All elevations.

Likelihood: Possible - Likely

Expected Size: 1 - 2

Deep Persistent Slabs

The Feb 12 surface hoar is still surprising us a with isolated large avalanches that are being triggered by skiers. The terrain of most concern are weak, shallow and rocky snowpack areas. In deeper snowpack areas this layer is not as reactive.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 2 - 3