Bulletin d’avalanche

Chic-Choc Mountains

Jan 22 – 23, 2025Avalanche Canada
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Archivé · expiré 2 years ago

Danger d’avalanche

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

Points saillants

Recent test results show that wind slabs are still sensitive to human triggering. Cold temperatures significantly slow snowpack stabilization.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2

    With moderate winds and snow available for transport, wind slabs continue to form. Cold temperatures are slowing down the stabilization of the snowpack. These wind slabs, which are sometimes hard, are more difficult to trigger, but they encourage propagation in the event of breakage. They rest on fragile layers that proved reactive in our tests.

Confidence

Moderate

Avalanche Summary

No new avalanches reported or observed

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

Snowpack Summary

At treeline and in the alpine, surface snow is strongly affected by wind, resulting in great variability in its distribution.

In wind-protected areas, the average depth of snow cover varies between 90 and 120 cm. Within this blanket, we find:

  • A thin layer of frost at a depth of around 20 cm.

  • A layer of facetted grains approximately 40 cm deep.

  • A melt-freeze crust at 60 cm.

Weather Summary

WEATHER FOR THE CHIC-CHOCS RIDGES AND SUMMITS

Temperatures will remain cold until the weekend.

Wednesday evening and night: Partly cloudy. Wind west, 20 to 40 km/h. Low -22.

Thursday: Mostly cloudy. Wind west, 20 to 40 km/h. High -17.

Friday: Sunny. Wind northwest, 25 to 50 km/h. High -15.

Saturday: Sunny. Wind northwest, 15 to 30 km/h. High -12.

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

Terrain and Travel Advice

  • If triggered, wind slabs avalanches may step down to deeper layers resulting in larger avalanches.
  • Watch for areas of hard wind slab on alpine features.

Régions couvertes