Avalanche Forecast

Issued: Apr 12th, 2015 8:03AM

The alpine rating is considerable, the treeline rating is considerable, and the below treeline rating is moderate. Known problems include Storm Slabs.

Parks Canada ali haeri, Parks Canada

Winter has returned!  Recently buried surface hoar and crusts in the upper snowpack. Watch for reactive wind effected snow up high and sluffing in steep terrain on northerly aspects. Solar radiation will have a strong effect if it comes through.

Summary

Weather Forecast

Partial clearing later today as a weak ridge of high pressure builds over the Interior. Snowfall tapering off this morning to light flurries with alpine winds still expected to remain in the moderate to strong from the west. Freezing levels will rise to ~1300m. Light snow is expected tonight into tomorrow morning.

Snowpack Summary

Up to 40cm of new recent storm snow. The storm layer sits atop a crust on solar aspects and surface hoar on sheltered N aspects. The upper 40-50cm of the snowpack is dry with moist snow below it. Multiple crusts in the top 1.5m of the snowpack over well settled snow.

Avalanche Summary

No new avalanches observed yesterday.

Confidence

Problems

Storm Slabs

An icon showing Storm Slabs
40cm of recent storm snow sits over surface hoar on northerly aspects. Associated winds with the storms have been enough to create slabs in exposed areas. Its time to select more conservative terrain.
Be cautious as you transition into wind affected terrain.Watch for whumpfing, hollow sounds, shooting cracks or recent avalanches.

Aspects: All aspects.

Elevations: Alpine, Treeline.

Likelihood

Possible - Likely

Expected Size

1 - 3

Valid until: Apr 13th, 2015 8:00AM