Bulletin d’avalanche

Purcells

Jan 5 – 6, 2024Avalanche Canada
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Archivé · expiré 3 years ago

Danger d’avalanche

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

Points saillants

Triggering large avalanches is possible in steep, rocky, alpine terrain.

Problèmes avalancheux

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely
    Taille
    2–2.5

    A layer of weak facets near the ground may be reactive to human triggering, especially in shallow rocky alpine terrain where it is not covered by a thick crust.

Confidence

High

Avalanche Summary

No new avalanches have been reported.

Snowpack Summary

The upper snowpack is comprised of crusts, settled powder, unconsolidated facets, and old wind slabs. Beneath lies a thin snowpack, with weak facets near the bottom, especially in alpine terrain.

Snowpack depths at treeline average 50 to 120 cm with significant regional variability.

Weather Summary

Thursday Night

Mostly cloudy with up to 5 cm of snow, southwest alpine wind 20 km/h, treeline temperature -8 °C.

Friday

Mostly cloudy with a dusting of snow, southwest alpine wind 25 to 40 km/h, treeline temperature -8 °C.

Saturday

Cloudy with 2 to 5 cm of snow, west alpine wind 15 to 30 km/h, treeline temperature -9 °C.

Sunday

A mix of sun and cloud with no new snow, north alpine wind calm to 15 km/h, treeline temperature -13 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Use caution on large alpine slopes, especially around thin areas that may propagate to deeper instabilities.
  • Be especially cautious near rock outcroppings, on steep convexities and anywhere the snowpack feels thinner than average.

Régions couvertes