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Archived

Avalanche Forecast

Dec 31st, 2015–Jan 1st, 2016
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low
Alpine
1: Low
The avalanche danger rating in the alpine will be low
Treeline
1: Low
The avalanche danger rating at treeline will be low
Below Treeline
1: Low
The avalanche danger rating below treeline will be low

Regions: Jasper.

Although the Avalanche Hazard is Low, Ice Climbers should be cautious on steep solar exposed gulleys.  A temperature inversion and solar input is triggering loose snow avalanches in this terrain.

Weather Forecast

Blocking high pressure and connected ridge is deflecting all weather systems.  A strong temp inversion will peak on Saturday with alpine temps well above freezing expected.  Valley bottom temps will moderate through the weekend.  All temps begin to slide as the new week begins and no precipitation in the near future. 

Snowpack Summary

Variable wind slab in open or exposed terrain.  Sun crust forming  on steep solar aspects due to warm alpine temperatures.  In most areas the snowpack = Surface facets on a supportive mid-pack that is bridging basal facets. 

Avalanche Summary

Numerous loose snow avalanches to size 1 reported along the Icefields Parkway Thursday afternoon on steep solar exposed gulleys (ice climbs).

Confidence

The weather pattern is stable on Friday

Avalanche Problems

Loose Dry

Solar triggered sluffs entraining loose snow in steep solar facing gulleys.
Avoid ice climbs exposed to steep rocky terrain on solar aspects during the middle of the day.

Aspects: North, North East.

Elevations: All elevations.

Likelihood: Likely - Very Likely

Expected Size: 1 - 2

Wind Slabs

Wind slabs can be expected to be most developed in the alpine and open tree-line ridge tops.
Caution in lee and cross-loaded terrain near ridge crests.Avoid steep slopes below cornices.

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

Elevations: Alpine, Treeline.

Likelihood: Unlikely - Possible

Expected Size: 1 - 2