Bulletin d’avalanche

Brazeau

Dec 5 – 6, 2023Avalanche Canada
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Archivé · expiré 3 years ago

Danger d’avalanche

Thu
Fri
Alpin
3 · Marqué
Limite forestière
3 · Marqué
Sous la limite
2 · Modéré

Points saillants

The avalanche hazard will rise significantly Tuesday morning and through the day with the incoming storm. Rain is expected at lower elevations (<1800m) before transitioning to snow.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely - Very Likely
    Taille
    1.5–2

    Forecasted strong winds and new snow will lead to reactive wind slabs in Lee features. These avalanches have the potential to initiate a deeper persistent slab and create a larger avalanche.

  • Deep Persistent Slabs

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

    The snow pack is very weak and faceted, particularly near the ground. We expect this problem to "wake up" and become more active as the load from the forecast snow and wind increases.

Confidence

Low

Avalanche Summary

No new avalanches observed or reported.

Snowpack Summary

Significant snowfall (~30cm) with strong transport winds overlies the December 2nd interface, which consists of surface hoar, thin sun crust on south and west aspects, and facets. Strong SW winds to redistribute storm snow at all elevations. The snowpack is 25-45cm in depth with a faceted base.

Weather Summary

Significant westerly flow entering the region will lead to high winds, unseasonably warm temps, and snowfall beginning in the am and continuing all day Tuesday. Accumulations of new snow, 10-15cms with strong southwesterly winds are anticipated.

The Mountain Weather Forecast is available from Avalanche Canada https://avalanche.ca/weather/forecast

Terrain and Travel Advice

  • Fresh wind slabs will likely form throughout the day, diligently watch for changing conditions.

Régions couvertes