Bulletin d’avalanche

Chic-Choc Mountains

Dec 10 – 11, 2025Avalanche Canada
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Archivé · expiré 10 months ago

Danger d’avalanche

Fri
Sat
Alpin
1 · Faible
Limite forestière
Début de saison
Sous la limite
Début de saison
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Points saillants

With the approaching storm, we are issuing our first avalanche danger rating of the winter. Skiing conditions remain very limited and hazardous, with thin snow coverage, many exposed obstacles, and challenging access. Avalanche danger will be especially higher in couloirs and ravines, where snow tends to accumulate more quickly early in the season.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–1.5

    Small isolated reactive wind slabs were present on the east and south aspects of the alpine before the snowfall forecasted for Wednesday night into Thursday. On Thursday, the new snow may have formed small isolated reactive wind slabs on west-facing slopes. As snow cover is limited, the problem is particularly prevalent in steep couloirs and terrain depressions of the alpine.

Confidence

Moderate

Avalanche Summary

No avalanche activity was observed or reported.

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

Snowpack Summary

The easterly wind forecasted for Wednesday night into Thursday will carry the new snow and accumulate it on slopes that previously had little snow cover.

Before this storm, wind slabs were already observed in ravines and alpine couloirs, especially on east and south-facing slopes.

Beneath the wind-blown snow, there is a layer that is transforming into facetted grains, a fragile structure.

The snowpack thickness varies between 40 and 70 cm, with more accumulation in couloirs, gullies, and areas of maximum accumulation.

We are still in early season conditions: there are numerous obstacles on the ground, and they are still very much present!

Weather Summary

WEATHER FOR THE CHIC-CHOCS RIDGES AND SUMMITS

A storm from the Great Lakes will pass through on Thursday evening, followed by periods of snow squalls until the end of the week.

Wednesday evening and night: Snow 10 to 20 cm. Wind from the northeast, 30 to 60 km/h. Low -14, warming overnight.

Thursday: Snow, 2 to 5 cm. Wind from the northwest, 10 to 20 km/h. High -8

Friday: Intermittent snow, 2 to 3 cm. Northwest wind, 30 to 50 km/h. High -8.

Saturday: Alternating sun and clouds. Northwest wind, 20 to 40 km/h. High -11.

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

Terrain and Travel Advice

  • Wind slabs are most reactive during their formation.
  • Use caution above cliffs and terrain traps where even small avalanches may have severe consequences.
  • Watch for areas of hard wind slab on alpine features.
  • Be cautious of buried obstacles, especially below treeline.

Régions couvertes