Avalanche Forecast

Issued: Dec 27th, 2011 4:00PM

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

Jon Stuart-Smith, Parks Canada

Waterton Lakes.

The northern end of a storm system could give the area +40cm of snow by Friday with forecast strong SW winds. Avalanche danger will increase depending on actual snowfall and winds. Pay close attention to accumulation and especially on lee slopes.

Summary

Problems

Wind Slabs

Not much has changed over the last few days (strong winds, mild temps). The likelihood of triggering a wind slab is decreasing but new snow will make it hard to identify slabs and it will take time for new snow to bond to the wind hammered surface.

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

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

1 - 2

Valid until: Dec 30th, 2011 4:00PM