Avalanche Forecast
Avalanche Bulletin - Jasper National Park
Natural activity has tapered, but there remains a high degree of uncertainty for large alpine slopes that have not recently slid. Good skiing can be found in sheltered areas below treeline.
Avalanche Problem 1: Wind Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Travel and Terrain Advice
- If triggered the wind slabs may step down to deeper layers resulting in large avalanches.
- Variable winds have created pockets of wind slab on all aspects.
Avalanche Problem 2: Persistent Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Persistent slabs remain a problem. The main concern is for areas exposed to large triggers such as cornices and large South facing alpine terrain exposed to the sun.
Travel and Terrain Advice
- Be wary of large alpine slopes that did not previously avalanche.
Avalanche Summary
Avalanche activity has tapered. No new observations from field team in the Parker Ridge area.
Snowpack Summary
Varied storm snow amts: 10-15cm in the Icefields, 40cm near Mt Wilson, and 30cm north of Beauty creek is sitting on the weak and facetted persistent slab at mid snowpack. Reverse loading from a northerly flow has cross-loaded Alpine features.
Weather Forecast
Temperatures remaining cool, but have the potential to reach fluctuate significantly over the course of the day. 10-15mm expected in a series of light snowfalls from Tuesday morning to Wednesday evening. Winds expected to intensify to strong from the SW with the first pulse of snow on Tuesday.
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Up to 45cm of HST fell through the forecast area. Winds during the storm were from the SW but switched to North Easterly on Sunday.