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Archived

Avalanche Forecast

Nov 23rd, 2015–Nov 24th, 2015
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
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Kananaskis.

The snowpack as a whole has stabilized with the current weather pattern. Remember that terrain still plays apart in traveling safely. Assess steep alpine terrain carefully, especially if it is thin and unsupported.

Confidence

Good

Weather Forecast

We are expecting a few cm's starting tomorrow. Right now we have 7cm on the forecast. This won't be enough to raise the hazard significantly, however it might freshen up the skiing slightly. As Tuesday comes to an end, an arctic high will move in to replace the warm air. The winds will shift to the north and temperatures will fall to -17 at 1800m. As the clouds disappear, so will any chance of new snow. 

Avalanche Summary

nothing new

Snowpack Summary

The consistent temperatures have allowed the snowpack to settle even more. At Burstall Pass the current height of snow is 79cm. That's down from 87 yesterday. At the moment the alpine is still showing the effects of the recent wind event. Hardslab is widespread in most gullied terrain. Windward aspects are mostly stripped bare of snow. We have had atleast one report of thin, poorly bonded hardslabs in steep alpine terrain. The same hardslabs can be found at the upper reaches of treeline. Crossloaded terrain and immediate lee terrain is very likely to have the windslab problem. Below treeline, not a lot has changed. The height of snow has come down to 63cms (on the Spray Rd) with a distinct settlement layer on top. Basal facetting and surface facetting is the prevalent process within the snowpack right now.

Avalanche Problems

Wind Slabs

With the new hardslabs, listen for hollow, drumming sounds and probe to inspect the snow underneath. Unsupported terrain should be treated with respect despite the hazard rating. Remember, human triggering is still possible with a "moderate" rating.
Avoid cross loaded slopes at or above treeline.>Avoid unsupported slopes.>

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

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 3