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Archived

Avalanche Forecast

Apr 13th, 2014–Apr 14th, 2014
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
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
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.

Pay lots of attention to the intensity of the solar radiation at this time of year.  Avoid solar aspects later in the day. 

Confidence

Fair - Timing or intensity of solar radiation is uncertain

Weather Forecast

Another clear day is forecast for Monday before a storm hits us once again on Tuesday.  Freezing levels are forecast to be around 1900m but the sun will definetly have an impact on stability later in the day.  Pay close attention to overhead terrain.

Avalanche Summary

A few loose wet slides up to sz 1 were observed as well as a few new sz 2 slab avalanches from thin rocky terrain on solar aspects at treeline and above.

Snowpack Summary

Dry powder snow can still be found on north aspects but below 2200m, expect to be skiing on top of a supportive crust.  On all other aspects, expect to encounter a surface crust right up to the peaks.  Some lower angle slopes that arent pure north look to be giving good skiing also eg, Sparrowhawk.  The basal facets are still a concern as is demonstrated here in this video

Avalanche Problems

Persistent Slabs

Thin steep terrain is the main place where forecasters are still aware of a potential problem with this interface.
Avoid convexities or areas with a thin or variable snowpack.>Avoid sun exposed slopes when the solar radiation is strong, especially if snow is moist or wet.>

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible

Expected Size: 2 - 5

Deep Persistent Slabs

As deeper spring avalanches initiate, this layer will become more of a concern.  As of yet, we have only seen isolated activity on this interface.
Minimize exposure to sun exposed slopes when the solar radiation is strong.>

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood: Possible - Likely

Expected Size: 4 - 6