Avalanche Forecast

Issued: Nov 18th, 2012 8:28AM

The alpine rating is considerable, the treeline rating is considerable, and the below treeline rating is low. Known problems include Wind Slabs.

jim phillips, Parks Canada

Glacier.

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Summary

Weather Forecast

South west flow producing a series of frontal systems over the next few days. Light snow expected today and into this evening until a more significant system approaches late tonight. Mountain top winds 50 to 80km/h today.

Snowpack Summary

10 to 15 cm of new snow. November crust layer now down 55-65cm. Buried wind slab on N and E aspects in alpine beneath new snow.

Avalanche Summary

No new activity observed yesterday.

Confidence

Intensity of incoming weather systems is uncertain on Monday

Problems

Wind Slabs

Moderate to strong overnight S-SW winds and 10-15cm of new snow has created a new windslab over the previous one which still exist up to 60 cm deep in open exposed areas. Conditions have become more tricky up high so heads up as you near tree line!

Be cautious as you transition into wind affected terrain.The recent snow may now be hiding windslabs that were easily visible before the snow fell.

Aspects: North, North East, East.

Elevations: Alpine, Treeline.

Likelihood

Possible - Likely

Expected Size

1 - 2

Valid until: Nov 19th, 2012 8:00AM