Avalanche Forecast
Issued: Feb 26th, 2020 4:00PM
The alpine rating is , the treeline rating is , and the below treeline rating is Known problems include Wind Slabs and Deep Persistent Slabs.
deryl kelly,
Parks Canada
Notable variations in the snowpack, especially in the Alpine between north and southern regions of the Park. Natural activity is unlikely, rider triggering possible where the deep persistent slab problem is well defined.
Brazeau/Maligne open Feb 29th
Summary
Weather Forecast
Westerly flow aloft may contribute to continued partly cloudy skies through the Jasper forecast regions, as another weak system pushes through BC. Flurries are expected through the day Thursday with very little accumulation.
Find the Alberta Rockies weather synopsis here: Mountain Weather Forecast
Snowpack Summary
Daily, trace amounts of new snow, spread irregularly over the region on old hard slab in the alpine. A thin rain crust present on all aspects at treeline; 1700m and below. The southern forecast region has a supportive mid-pack. Less supportive and poor bridging over a pronounced basal weaknesses in the north; Whistlers/Portal and soon, Maligne area
Avalanche Summary
No new avalanches were observed or reported. Forecast team in the Mt. Wilson zone, no sign of instability at TL and below.
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Confidence
Problems
Wind Slabs
Well defined wind effect and scouring in exposed areas at TL and the alpine. Triggering has the potential to initiate the deep persistent slab.
- Assess start zones carefully and use safe travel techniques.
- Watch for pockets of hard windslab in steep alpine terrain features..
Aspects: North, North East, East, South East.
Elevations: Alpine, Treeline.
Likelihood
Expected Size
Deep Persistent Slabs
Skier triggering could occur in shallow snowpack areas or from large loads such a cornice failure. The consequences of triggering would be severe!
- Be aware of the potential for full depth avalanches due to weak layers at the base of the snowpack.
- Avoid steep convexities or areas with a thin or variable snowpack.
Aspects: All aspects.
Elevations: All elevations.
Likelihood
Expected Size
Valid until: Feb 27th, 2020 4:00PM
