Avalanche Forecast

Issued: Mar 27th, 2012 4:00PM

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

chris gooliaff, Parks Canada

Banff Yoho Kootenay.

Scattered flurries with moderate winds should not affect the danger level drastically in the next 2 days. The sun, however, is packing quite a punch on solar aspects at tree-line and below. Pay attention to this warming as you return to the valley.

Summary

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Forecast snowfall amounts are uncertain

Problems

Persistent Slabs

The Valentines surface hoar down 70-150cm is bonding well to the surfaces above and below. Test results are finding hard to no results on this layer. The chance of triggering will increase in thinner areas, and large avalanches are still possible.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

2 - 3

Deep Persistent Slabs

Although difficult to initiate, it is still possible to trigger a deep persistent slab. Heavy loads in steep and shallow areas are the most likely trigger to produce an avalanche on this layer currently.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

1 - 3

Valid until: Mar 28th, 2012 4:00PM