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Archived

Avalanche Forecast

Feb 29th, 2016–Mar 1st, 2016
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
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
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: Kananaskis.

Snow and wind will arrive late tomorrow afternoon. Expect slabs to build quickly due to the warming air temps and relatively warm snow temps. Last night helped to refresh the skiing with 10-15cm of new snow.

Confidence

High

Weather Forecast

A few flurries are expected tomorrow. With any luck, we'll get 6cm or so out of them. The temps will be relatively warm and max out at -2 in the low alpine. The winds will be mostly light tonight and tomorrow, but there are gusts up to 50km/hr expected for both days.

Avalanche Summary

No new avalanches noted today.

Snowpack Summary

10-15 cm's of new snow fell last night. The winds that accompanied the snow have created new storm slabs at treeline and alpine elevations. These slabs are concentrated on east to south aspects and near ridges. The underlying surface for this new snow will be a variety of crusts on low elevations, crusts on south aspects, and windslabs in the alpine. At all elevations, the concerning layers from last week have healed up well making for a relatively strong snowpack. 

Avalanche Problems

Storm Slabs

The winds will keep these slabs limited to immediate lee areas. This includes cross loaded gullies. 
Avoid cross loaded slopes at or above treeline.>Avoid freshly wind loaded features.>

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

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 1 - 2

Wind Slabs

These are lingering at upper treeline and alpine elevations. Steep terrain is still concerning.
Choose well supported terrain without convexities.>

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

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 1 - 3

Persistent Slabs

These remain on the list of problems to look for because of the variability within the snowpack. Probing and digging is the best tool to find and assess this layer.
Pay attention to overhead hazards like cornices.>Be aware of the potential for large, deep avalanches.>

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Unlikely

Expected Size: 2 - 5