Avalanche Forecast

Issued: Apr 6th, 2015 8:00AM

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

Parks Canada ali haeri, Parks Canada

Summary

Weather Forecast

High pressure ridge is settled in over the Province and will keep a steady pattern until later this week. Increasingly cloudiness is expected today with freezing levels rising to 1600m and light alpine winds. Tomorrow will clear up again. Gradual rise in freezing levels throughout the week with warmer overnight temperatures.

Snowpack Summary

Overnight crust refreeze at the surface below 2300m. Multiple crusts in the top 1.0m of the snowpack.  Dry snow can still be found above 2300m. The mid and lower snowpack are well settled.

Avalanche Summary

2 natural size 2.0 slab avalanche yesterday within the highway corridor

Confidence

Problems

Persistent Slabs

An icon showing Persistent Slabs
Multiple weak layers in the top 1.0 m of the snowpack. These layers may become more reactive as the snowpack warms with daytime heat and weakens them. Large triggers like cornice falls may also do the trick.
Pay attention to overhead hazards like cornices.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

2 - 3

Valid until: Apr 7th, 2015 8:00AM