Boletín de aludes

Chic-Choc Mountains

Feb 24 – 25, 2026Avalanche Canada
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Archivado · caducó 7 months ago

Peligro de aludes

Thu
Fri
Alta montaña
3 · Notable
Límite del bosque
3 · Notable
Bajo el límite
1 · Débil
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Lo esencial

Snowfall totals were much higher in the Mines Madeleine sector than across the rest of the forecast area. Newly formed wind slabs are reactive to skier traffic. The best riding conditions are currently found below treeline.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    1–2

    New wind slabs have formed near the tops of slopes on east through west aspects with the snow received since Monday evening. These wind slabs are particularly reactive on southeast to southwest slopes steeper than 40°, as they rest on a sun crust. They formed on top of older, more stubborn wind slabs that are still reactive in stability tests. This means a small surface avalanche could be enough to trigger a more deeply buried wind slab. Snow amounts vary widely across the forecast area. In the Mines Madeleine sector, which received the highest accumulations, new wind slabs could be up to 50 cm thick.

Confidence

Moderate

  • We are uncertain due to a limited number of field observations.

Avalanche Summary

In the Mines Madeleine area, the new snow was reactive to skier traffic on south-facing slopes steeper than 40°, as it rests on a sun crust.

If you head into the backcountry, thanks for sharing your observations on the Mountain Information Network (MIN).

Snowpack Summary

Between 5 and 30 cm of new snow has fallen since Monday evening, with the Mines Madeleine area receiving the highest accumulations. In alpine terrain and at treeline, this snow has settled on a variety of surfaces: soft snow, older wind slabs, hard snow, sun crusts, and exposed rock.

Below treeline, there is generally 15 to 25 cm of soft snow resting on a progressively denser snowpack.

In the Mines Madeleine area, as well as in some locations on Ernest-Laforce, a layer of large rimed grains is buried beneath 20 to 50 cm of wind slab. This weak layer is one to watch on east through west aspects.

The average snowpack depth at mid-mountain is approximately 110 cm.

Weather Summary

WEATHER FOR THE CHIC-CHOCS RIDGES AND PEAKS
A brief lull is expected on Wednesday, before a return to light snowfall on Thursday.

Tuesday night: Light snow. Accumulation of 2–4 cm. Winds becoming light from the northwest up to 15 km/h. Low −12 °C.

Wednesday: Mostly cloudy. South winds 10–20 km/h. High −8 °C.

Thursday: Snow. Accumulation of 3–5 cm. Southwest winds 10–30 km/h. High −4 °C.

Friday: Sunny. Southwest winds 10–30 km/h. High −12 °C.

For more details, see the Chic-Chocs alpine weather forecast.

Terrain and Travel Advice

  • Seek out wind sheltered terrain below treeline where you can avoid wind slabs and find great riding.
  • Wind slabs are most reactive during their formation.
  • If triggered, wind slabs may step down to deeper layers, causing larger avalanches.

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