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Archived

Avalanche Forecast

Mar 21st, 2014–Mar 22nd, 2014
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
Alpine
3: Considerable
The avalanche danger rating in the alpine will be considerable
Treeline
3: Considerable
The avalanche danger rating at treeline will be considerable
Below Treeline
2: Moderate
The avalanche danger rating below treeline will be moderate
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
2: Moderate
The avalanche danger rating below treeline will be moderate

Regions: Kananaskis.

The storm snow from the past few days is settling out and by late Friday has not seen a lot of wind action.  Only a few centimeters of new snow is anticipated over the weekend and skiing conditions are very good.

Confidence

Fair - Wind speed and direction is uncertain

Weather Forecast

A few centimeters of new snow over Friday night is likely in alpine terrain.  Overnight lows down to -17 degrees and winds light.  Winds on Saturday are forecast to be generally light with gusty periods up to 35km/h.

Avalanche Summary

One new size 2.5 on a west aspect on MT Buller Fracture Line  up to 1 meter thick along flanks.  Debris ran to within 100m of roadway.

Snowpack Summary

Storm snow from the past 24+ hours is settling and bonding to the previous surface.  No new windslabs observed in travel in Alpine terrain today around the Tent Ridge area.

Avalanche Problems

Wind Slabs

Isolated wind slabs are present on lee aspects in alpine and treeline terrain.
Avoid freshly wind loaded features.>Avoid cross loaded features.>Avoid convexities or areas with a thin or variable snowpack.>

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

Elevations: Alpine, Treeline.

Likelihood: Likely

Expected Size: 2 - 4

Persistent Slabs

Field tests on a north aspect at 2350m still producing shears on the Feb 11 interface in the moderate range.
Avoid convexities or areas with a thin or variable snowpack.>Be aware of the potential for large, deep avalanches.>

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

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 3 - 5