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Archived

Avalanche Forecast

Feb 8th, 2020–Feb 9th, 2020
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: Kananaskis.

Good skiing at treeline and below right now. The alpine looks more crossloaded and wind affected. Tread carefully at the treeline/alpine transition.

Confidence

High -

Weather Forecast

Overnight low of -21, rising to -10 by 2pm. No new snow, maybe a few flurries, but nothing too exciting. The winds will be light from the SW down low and strong (80km/hr) from the NW at mountain top. 

Avalanche Summary

One cornice fall was witnessed today around noon. It triggered a sz2 loose dry snow avalanche that traveled quite far. It didn't initiate a slab.

Snowpack Summary

5-10 new in the last 24 hours. Not much for wind affect up to 2300m. Above that light winds were blowing some snow around, but not much for new loading. Having said that, there are fresh cornices out there that appear to be delicate. Buried windslabs exist in crossloaded features at treeline. A failure between layers was noted down 50cm. The mid pack is hanging in there and feels supportive in most areas, but the very bottom of the snowpack is still weak and suspect. The rain crust is making for easy travel up to 1950-2000m.

Terrain and Travel

  • Conditions may have improved, but be mindful that deep instabilities are still present.

Avalanche Problems

Wind Slabs

Winds overnight will be variable so expect new slabs on almost all aspects. Buried slabs are on all easterly aspects and in many places there are multiple layers.

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

Elevations: Alpine, Treeline.

Likelihood: Likely

Expected Size: 1.5 - 2.5

Deep Persistent Slabs

Large triggers are a concern. Cornices, or other avalanches could wake this layer up. 

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 2 - 3.5