Bulletin d’avalanche

Jasper

Jan 20 – 21, 2026Avalanche Canada
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Archivé · expiré 8 months ago

Danger d’avalanche

Thu
Fri
Alpin
2 · Modéré
Limite forestière
1 · Faible
Sous la limite
1 · Faible

Points saillants

Sunshine will continue with little change to skiing conditions. Look for preserved powder in sheltered terrain.

Don’t get complacent with the deep persistent slab - it remains a low-probability, high-consequence problem. Be cautious in areas with thinner snowpacks or where the snowpack transitions from thick to thin.

Problèmes avalancheux

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    2–3.5

    This problem is low probability - high consequence! Be cautious where the snowpack transitions from thick areas to thin areas. A recent size 3 avalanche has been observed on this layer. This problem encompasses multiple weak layers of facets, crusts, and basal facets from November and December.

Terrain and Travel Advice

  • Keep in mind that human triggering may persist as natural avalanches taper off.
  • Be mindful that deep instabilities are still present and have produced recent large avalanches.
  • Be careful as you transition into wind-affected terrain.

Snowpack Summary

Previous winds created firm, wind-affected surfaces in exposed terrain at all elevations, while softer snow remains in sheltered areas. Sun-exposed slopes host variable crusts, especially on steep aspects. The snowpack is deeper in the Icefields and more shallow & weak in the Maligne area.

Weather Summary

Tuesday to Friday will bring mainly sun, a few clouds, no new snow, -6 to -17 °C, and light NW to calm winds. Some gusts up to 50 km/h may transpire Tuesday.

Confidence

Moderate

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

Avalanche Summary

No field patrol on Monday. Sunday's field team in the Nigel area reported no new naturals. A size 3 deep persistent slab was triggered in terrain adjacent to the ski hill on Friday. Maligne Road Patrol on Saturday observed several solar triggered avalanches up to size 1.5

Régions couvertes