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Archived

Avalanche Forecast

Feb 26th, 2020–Feb 27th, 2020
Alpine
2: Moderate
The avalanche danger rating in the alpine will be moderate
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
2: Moderate
The avalanche danger rating in the alpine will be moderate
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
2: Moderate
The avalanche danger rating in the alpine will be moderate
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.

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

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. 

Used daily by Forecasters, The Mountain Information Network is your way to share your field trip observations and helps contribute to the daily avalanche bulletin.

Confidence

Avalanche 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: Unlikely - Possible

Expected Size: 1 - 2.5

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: Possible

Expected Size: 1.5 - 3