Avalanche Forecast

Issued: Apr 28th, 2013 4:00PM

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

Snow Safety, Parks Canada

Banff Yoho Kootenay.

Another weak storm will create some more isolated windslabs on steep alpine slopes. Otherwise, the crusts will be intact and strong for much of the day. A significant warm up towards the end of the week may trigger a spring cycle.

Summary

Weather Forecast

A weak storm will bring a little bit of snow to higher ground. Temps initially will be cool heating up considerably later in the week.

Snowpack Summary

Cooler temperatures have refrozen the snowpack. Upper elevations have new fresh snow and some windslabs.

Avalanche Summary

There have been a few cornice falls and steep wind slabs reported over the last week. All on steep terrain and not running very far.

Confidence

Freezing levels are uncertain on Thursday

Problems

Wind Slabs

Fresh wind slabs have formed on lee features in the alpine .� These new wind slabs are sitting on a crust or facets and have been triggered in very steep terrain up to 30 cm thick.

Avoid freshly wind loaded features.Use caution in lee areas in the alpine. Recent wind loading have created wind slabs.

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

Elevations: Alpine, Treeline.

Likelihood

Possible - Likely

Expected Size

1 - 2

Valid until: Apr 29th, 2013 4:00PM