Bulletin d’avalanche

South Rockies

Jan 12 – 13, 2023Avalanche Canada
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Archivé · expiré 4 years ago

Danger d’avalanche

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

Points saillants

The current snowpack demands a thoughtful approach to avalanche terrain. Avoid steep terrain with shallow, variable snow depths where triggering deep weak layers is more likely.

Problèmes avalancheux

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    2–3

    Human triggering of deep persistent weak layers remains possible, especially in shallow areas with variable snow depths. Consequences could be severe if triggered.

Confidence

Moderate

Avalanche Summary

No recent avalanches have been reported in the region.

Please continue to share any observations or photos on the Mountain Information Network.

Snowpack Summary

Roughly 10 cm of low-density snow since the weekend overlies a generally well-settled upper snowpack. The mid and lower snowpack consists of loose facets, with a significant weak layer of large facets and a crust down 80 to 120 cm from the surface. The snow below the crust is generally weak and unconsolidated.

Treeline snow depths are roughly 140 to 160 cm.

Weather Summary

Wednesday night

Cloudy with clear periods, no precipitation. Very light ridgetop winds. Treeline temperatures -5 to -10 C.

Thursday

Mostly cloudy, with trace snow. Light southwest ridgetop winds. Treeline temperatures -0 to -5 C.

Friday

Cloudy, with flurries, 0 to 2 cm. Light to moderate southwest ridgetop winds. Treeline temperatures around 0 C. Freezing levels 2000 m.

Saturday

Cloudy with light snow, 0 to 5 cm. Light southwest ridgetop winds. Treeline temperatures around 0 C. Freezing levels 2000 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Uncertainty is best managed through conservative terrain choices at this time.
  • In areas where deep persistent slabs may exist, avoid shallow or variable depth snowpacks and unsupported terrain features.
  • Don't let the desire for deep powder pull you into high consequence terrain.

Régions couvertes