Avalanche forecast

Jasper

Dec 19 – 20, 2021
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Avalanche danger

Mon
Tue
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
1 · Low
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Highlights

Travel delays between Parkers Ridge and Saskatchewan Crossing can be expected on Sunday for avalanche control.

Check AB511 for updates.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2

    New snow available for transport with moderate SW winds continue to incrementally build on this hazard. Use caution in lee features and near ridge crests.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    2–3

    Triggering this layer would be a high consequence event - cautious decisions and thorough investigation is necessary. More likely to trigger this layer in transitions from thin snowpack to deeper loaded pockets or terrain features.

Weather Forecast

Tonight: Mainly cloudy with isolated flurries. Trace of new. Temp: Low -14 °C. Ridge wind W: 10-25 km/h.

Sunday: Sunny with cloudy periods. Temp: High -15 °C. Ridge wind light to 15 km/h.

Monday: A mix of sun and cloud. Alpine temperature: Low -18 °C, High -15 °C. Ridge wind west: 10-25 km/h.

Snowpack Summary

Moderate SW winds and small amounts of new snow has formed sensitive wind slabs in alpine and treeline areas. Mid snowpack has settled with a 2cm crust present (down ~20cm) below the recent storm snow up to 1950m. Another crust near the base of the snowpack continues to promote basal faceting adding to deep persistent slab concerns.

Avalanche Summary

Anticipating possible Avalanche control operations on the Icefields Parkway beginning Sunday morning. Delays of up to 1.5 can be expected between 10:00 and 15:00. Check Alberta road conditions for updates.

Please share your trip report, Ice and/or Riding conditions on Avalanche Canada's, Mountain Information Network!

Confidence

Regions covered