Avalanche Forecast

Issued: Mar 19th, 2012 4:00PM

The alpine rating is high, the treeline rating is considerable, and the below treeline rating is moderate. Known problems include Wind Slabs and Persistent Slabs.

ian jackson, Parks Canada

Banff Yoho Kootenay.

If the forecasted storm arrives, the danger will rise, increasing the potential for large avalanches to occur on the Valentine's layer. See our Facebook page for a picture of a recent avalanche that occured on this layer on Mt. Rundle.

Summary

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Intensity of incoming weather systems is uncertain on Tuesday

Problems

Wind Slabs

10-20 cm of snow along with strong W winds are forecasted for Tuesday. Smaller avalanches initiated with this new snow have the potential to step down to the Valentines layer, which would result in large, destructive avalanches.

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

Elevations: Alpine, Treeline.

Likelihood

Likely - Very Likely

Expected Size

1 - 2

Persistent Slabs

Down 70-150cm, the Valentines surface hoar is producing harder shears; however, a remotely triggered size 2.5 avalanche today on an E aspect near Healy Pass shows that it is still possible for a skier to trigger this layer.

Aspects: All aspects.

Elevations: All elevations.

Likelihood

Possible

Expected Size

2 - 4

Valid until: Mar 20th, 2012 4:00PM