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Archived

Avalanche Forecast

Jan 13th, 2013–Jan 14th, 2013
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
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.

Increasing NW winds on Monday may initiate another small avalanche cycle. If the forecasted winds arrive the avalanche danger may even push into high on Monday!  Another inversion is also forecast so watch for det'r stability at higher elevations.

Confidence

Good

Weather Forecast

Winds and temps are both set to increase over the next 24hrs.  Winds are expected to reach into the 100kph range at higher elevations which may kick off another small cycle of natural avalanche activity at higher elevations where there is lots of snow available for transport.  Forecasts are also calling for an inversion on Monday so all users should avoid exposure to steep solar aspects that may have deteriorating stability early in the day. 

Avalanche Summary

No new avalanche observations over the past 24hrs. 

Snowpack Summary

Little change over the past 24hrs.  Upper snowpack continues to tighten up due to the cold temps and facetting continues in shallow snowpack areas.  Some pockets of surface facetting in Alpine terrain on N aspects.

Avalanche Problems

Storm Slabs

Slabs 30-40cm thick are being encountered on north easterly aspects at treeline and above. Many slabs that failed in the latest cycle failed on a surface hoar or facet layer down 30-50cm.  Avoid unsupported and convex terrain features.
Watch for whumpfing, hollow sounds, shooting cracks or recent avalanches.>Avoid open slopes and convex rolls at and below treeline where buried surface hoar may be preserved.>Avoid unsupported slopes.>

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

Elevations: Alpine, Treeline.

Likelihood: Likely

Expected Size: 1 - 4