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Archived

Avalanche Forecast

Jan 21st, 2013–Jan 22nd, 2013
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
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: Banff Yoho Kootenay.

Weather Forecast

Continued warm and dry for Tuesday. Cooling trend and light snowfall forecasted for Wednesday.

Snowpack Summary

Touchy windslabs that are reactive to human triggering exist in the alpine. Warm day time temperatures may cause these slabs to become more reactive. Extra caution on sunny slopes in the afternoon is warranted.

Avalanche Summary

Class 2 wind slab on north aspect at 2400 m near Bow Summit was triggered by skiers on Monday. A class 1.5 skier triggered wind slab  (north aspect, 2300m) on Observation peak in past 248 hours.

Confidence

Due to the number and quality of field observations

Avalanche Problems

Wind Slabs

Touchy wind slabs that are reactive to human triggering exist in the alpine. See avalanche discussion.
Be cautious as you transition into wind affected terrain.Be aware of the potential for wide propagations due to the presence of hard windslabs.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2