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Archived

Avalanche Forecast

Feb 24th, 2014–Feb 25th, 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
3: Considerable
The avalanche danger rating below treeline will be considerable
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
3: Considerable
The avalanche danger rating below treeline will be considerable
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
3: Considerable
The avalanche danger rating below treeline will be considerable

Regions: Glacier.

http://www.pc.gc.ca/apps/links/goto_e.asp?destination=http://bit.ly/1fj0THPWe are still at a heightened hazard rating due to buried crusts and surface hoar reactive to a humans weight as well as strong solar radiation today.  Be diligent i you terrain selection until this layer has had a chance to heal.

Weather Forecast

An upper ridge of high pressure over the area will keep conditions clear and cold for the next few days

Snowpack Summary

1-1.5m of storm snow is settling into a cohesive slab over the Jan 28/22 facet/surface hoar/crust interface. Snowpack tests suggests this weak layer is difficult to trigger, but if failed has high propagation propensity. In addition, layers in the top 60cm of the storm slab are reactive and if triggered will likely step down to the Jan 28/22.

Avalanche Summary

One size 2.0 natural slab avalanche in the highway corridor east of the Rogers Pass summit yesterday . From Saturday a size 2.5 slab avalanche was observed around noon behind the Asulkan Hut.

Confidence

Avalanche Problems

Persistent Slabs

Be aware of the potential for large, deep avalanches due to the presence of buried surface hoar.Use conservative route selection, choose moderate angled and supported terrain with low consequence.

Aspects: All aspects.

Elevations: All elevations.

Likelihood: Possible

Expected Size: 2 - 4

Cornices

Pay attention to overhead hazards like cornices.

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

Elevations: Alpine.

Likelihood: Possible

Expected Size: 2 - 4