Avalanche Forecast

Issued: May 3rd, 2012 4:00PM

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

mike eder, Parks Canada

Jasper.

Cooler forecasted temperatures and overcast skies should keep the spring snowpack frozen at treeline and above. If there is a crust below treeline, expect it to break down early and the snow to go isothermal.

Summary

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Intensity of incoming weather systems is uncertain

Problems

Loose Wet

Expect the melt freeze crust to deteriorate rapidly below treeline, with the warm, rainy conditions which are in the forecast through the weekend. Loose snow avalanches are possible below treeline if we receive heavier than predicted showers.

Aspects: All aspects.

Elevations: Alpine.

Likelihood

Unlikely - Possible

Expected Size

1 - 2

Deep Persistent Slabs

Cooler temperatures in the high alpine should freeze the snowpack tight bridging this weak layer. Pay attention to overhead hazards IF the sun comes out for an extended time as this could rapidly increase the avalanche danger

Aspects: North, North East, East.

Elevations: Alpine.

Likelihood

Unlikely

Expected Size

2 - 4

Valid until: May 4th, 2012 4:00PM