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Archived

Avalanche Forecast

Nov 12th, 2016–Nov 13th, 2016
Alpine
Below Threshold
The avalanche danger rating in the alpine will be below threshold
Treeline
Below Threshold
The avalanche danger rating at treeline will be below threshold
Below Treeline
Below Threshold
The avalanche danger rating below treeline will be below threshold
Alpine
Below Threshold
The avalanche danger rating in the alpine will be below threshold
Treeline
Below Threshold
The avalanche danger rating at treeline will be below threshold
Below Treeline
Below Threshold
The avalanche danger rating below treeline will be below threshold
Alpine
Below Threshold
The avalanche danger rating in the alpine will be below threshold
Treeline
Below Threshold
The avalanche danger rating at treeline will be below threshold
Below Treeline
Below Threshold
The avalanche danger rating below treeline will be below threshold

Regions: Jasper.

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.  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

Avalanche 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