Avalanche Forecast
Avalanche Bulletin - Jasper National Park
Sheltered terrain should offer good skiing above 2000m
Avalanche Problem 1: Wind Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Travel and Terrain Advice
- Be careful with wind loaded pockets, especially near ridge crests and roll-overs.
- Minimize exposure to steep, sun exposed slopes when the solar radiation is strong.
Avalanche Summary
Poor visibility today during storm, no observations from today. Natural avalanches to size 2.5 in the last 5 days from steep, wind loaded terrain. Cornice failures are likely and have caused natural avalanches to size 2 in the last week.
Snowpack Summary
Strong SW winds are moving today's 10-20cm of new storm snow under near zero temps, creating windslabs on lee and cross-loaded features and increasing spring cornices. Early March warm temps created a strong bridging layer, which is capped with a crust on solar aspects to 3000m. This layer is promoting good skiing and travel.
Weather Forecast
Cooler temps will follow Tuesday's snowfall with strong SW winds switching to West winds into Wednesday. Broken skies will be replaced by another pulse of snow on Friday and 15-25cm of additional snowfall. Cold arctic air will displace the snow with overnight lows reaching below -20 Saturday morning.
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Wind slabs sit on a hard melt-freeze crust on solar aspects, and facets on polar aspects. Assess the bond at these interfaces carefully before committing to avalanche start zones.