Avalanche Forecast

Issued: Dec 5th, 2015 4:00PM

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

Parks Canada snow safety, Parks Canada

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Banff Yoho Kootenay.

More snow and more wind will thicken up the new slabs in the alpine. Surface hoar near treeline will begin to get more reactive. JP

Summary

Weather Forecast

The winds are picking up as the chinook flow re-establishes itself over the forecast area. A series of disturbances is forecast to begin Sunday afternoon with 10-15 cm of snow. There will be more precipitation in the northern and western portions of the forecast area. Temperatures are expected to remain cool

Snowpack Summary

Surface hoar, sun crust and facets now buried by 5-20cm in the alpine. Surface hoar to 20mm has been found up to 1800m. South and Southwest winds are back in the moderate range. Opens areas near or above treeline are a mix of hard or very hard windslabs and facets. Poorly bonded windslabs can be expected at ridge-crests and in lee areas.

Avalanche Summary

Only small avalanches from from alpine terrain were reported today.

Confidence

Problems

Wind Slabs

An icon showing Wind Slabs
Small wind slabs will be forming in immediate lees. Places like the Bow Summit/Wapta region may have thicker wind slabs as they received more snow than other areas of the forecast region.

Aspects: North, North East, East, South East, South.

Elevations: Alpine.

Likelihood

Unlikely - Possible

Expected Size

1 - 2

Valid until: Dec 6th, 2015 4:00PM

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