Avalanche Forecast

Issued: Nov 12th, 2016 4:00PM

The alpine rating is below threshold, the treeline rating is below threshold, and the below treeline rating is below threshold. Known problems include Loose Wet and Wind Slabs.

a.l. horton, Parks Canada

Jasper.

Summary

Weather Forecast

Wet warm conditions to continue through the weekend and then a cooling and drying trend into the week of Nov 14.

Snowpack Summary

Snowline has moved above tree line on southerly aspects and is rapidly disappearing on northerly tree line slopes. The treeline snowpack is saturated.Â There is a melt freeze /rain crust that is present above 1800 m on north aspects and 2400 on south. Where snow is available for transport, thin windslab may have formed on this crust.

Avalanche Summary

Numerous loose wet avalanches to size 2 on steep North to Southeast slopes generally 100 m above treeline and stopping mid-path observed along the Parkway on Saturday.

Confidence

Problems

Loose Wet

Rain has saturated the snowpack into the Alpine. Expect this problem to be active as long as rain and above freezing conditions continue.

Use extra caution on slopes if the snow is moist or wet.

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

Elevations: Alpine, Treeline.

Likelihood

Possible - Likely

Expected Size

1 - 2

Wind Slabs

Slabs are thin and in areas where snow is available for transport. Forming on lee slopes, below ridgelines and cross loaded gullies.

Use caution in lee areas. Recent wind loading have created wind slabs.

Aspects: North, North East, East.

Elevations: Alpine, Treeline.

Likelihood

Unlikely - Possible

Expected Size

1 - 2

Valid until: Nov 13th, 2016 4:00PM