Avalanche Forecast

Issued: Apr 11th, 2014 4:47PM

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

snow safety, Parks Canada

Banff Yoho Kootenay.

Avoid big alpine features until the spring cycle has has happened. Watch for solar input and daytime heating.

Summary

Weather Forecast

Freezing temperatures forecast for Saturday and Sunday may dip as low as double digits. 5 cm of accompanying light snow is expected.

Snowpack Summary

Deep instabilities may still be triggered in specific areas. Watch for thinner areas that may trigger depths over one metre. While rotten basal layers are not universal, they can still be found on different aspects. A change in wind direction to a more northerly flow may create small windslabs in the alpine.

Avalanche Summary

Small high altitude sloughing in lee areas and small solar releases in exposed aspects were noted.

Confidence

Freezing levels are uncertain

Problems

Deep Persistent Slabs

Colder weather will add a little more stability to the snowpack. It is still too early to move out onto big alpine lines.

Be aware of thin areas that may propogate to deeper instabilites.Stay well back from cornices.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

1 - 3

Valid until: Apr 12th, 2014 4:00PM