Avalanche forecast

Jasper

Dec 7 – 8, 2021
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Avalanche danger

Wed
Thu
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
1 · Low

Highlights

Triggering deeper instabilities is still possible.Dig before you commit to your line.

Keep your MIN reports coming as your eyes on the ground are appreciated.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1.5–2.5

    A triggered windslab has a potential to step down to deeper instabilities with a more destructive potential. Consider testing smaller slopes before committing to a terrain with potential for larger propagation. Watch for hollow sounds and cracking.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    2–3.5

    Natural activity is decreasing as the recent new snow stabilizes, however, triggering this layer would be a high consequence event so cautious decisions and a thorough investigation is necessary.

Weather Forecast

Tuesday: Isolated flurries. Precipitation: Trace. Alpine temperature: High -9 °C. Ridge wind southwest: 15-30 km/h.

Wednesday: Flurries. Accumulation: 9 cm. Alpine temperature: Low -15 °C, High -7 °C. Ridge wind west: 20 km/h

Thursday:  Isolated flurries. Precipitation: Trace. Alpine temperature: Low -21 °C, High -13 °C. Ridge wind west: 20 km/h

Snowpack Summary

The midpack is quite supportive and the crust /facet /depth hoar November combo near the ground is the only layer of concern at the moment.

Avalanche Summary

No new avalanches observed in the Icefields area on Monday. Maligne area field team reported no new avalanches on Sunday.

Confidence

The weather pattern is stable

Regions covered