Avalanche forecast

Jasper

Dec 31, 2025 – Jan 1, 2026Avalanche Canada
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Avalanche danger

Fri
Sat
Alpine
3 · Considerable
Treeline
2 · Moderate
Below
1 · Low
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Highlights

Large natural avalanche activity is tapering off, but the Deep Persistent avalanche problem could still be primed for human triggering.

Some excellent skiing is being found in areas that are sheltered from the ongoing winds.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    1–2.5

    Ongoing moderate to strong transport from the SW is redistributing snow into lee features.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    2–4

    There have been numerous large avalanches up to size 4 in Jasper this past week. This problem encompasses multiple weak layers of facets, crusts, and basal facets from November and December.

Confidence

Moderate

  • Uncertainty is due to the fact that deep persistent slabs are particularly difficult to forecast.

Weather Summary

Wednesday

Mainly cloudy.

Precipitation: Nil.

Alpine temperature: High -6 °C.

Ridge wind southwest: 10 km/h.

Freezing level at valley bottom.

Thursday

Cloudy with sunny periods.

Precipitation: Nil.

Alpine temperature: Low -7 °C, High -4 °C.

Ridge wind southwest: 10 km/h.

Freezing level at valley bottom.

Friday

Mainly cloudy with isolated flurries.

Precipitation: Trace.

Alpine temperature: Low -9 °C, High -5 °C.

Ridge wind southwest: 15-30 km/h.

Freezing level at valley bottom.

Terrain and Travel Advice

  • Be mindful that deep instabilities are still present and have produced recent large avalanches.
  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.

Regions covered