Bulletin d’avalanche

Purcells

Feb 11 – 12, 2025Avalanche Canada
Voir sur la carte
Archivé · expiré 2 years ago

Danger d’avalanche

Thu
Fri
Alpin
1 · Faible
Limite forestière
1 · Faible
Sous la limite
1 · Faible

Points saillants

continuously assess conditions as you move through terrain

Remember that small avalanches can have big consequences in extreme terrain.

Problèmes avalancheux

  • Loose Dry

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

    Dry loose avalanches are possible in steep terrain where the upper snowpack feels loose or unconsolidated.

Confidence

High

Avalanche Summary

Over the past couple days natural, dry loose avalanches up to size 1.5 were observed on steep south facing terrain.

A few skier triggered dry loose avalanches up to size 1 were also reported. These avalanches were in steep terrain on north aspects.

Snowpack Summary

Exposed terrain in the alpine and treeline is generally wind-affected. In sheltered terrain 10 to 40 cm  of faceted snow overlies a weak layer from late January. This layer consists of a crust on sun exposed slopes and a layer of surface hoar on all other aspects

A weak layer of facets from early December is 60 to 120 cm deep.

The base of the snowpack consists of a thick crust with facets or depth hoar in many areas.

 

Weather Summary

Monday Night

Clear skies. 10 to 25 km/h northwest ridgetop wind. Treeline temperature -28 °C.

Tuesday

Sunny. 10 to 25 km/h northwest ridgetop wind. Treeline temperature -20 °C.

Wednesday

Mostly sunny. 10 to 30 km/h northwest ridgetop wind. Treeline temperature -20 °C.

Thursday

Mostly sunny. 10 to 20 km/h southwest ridgetop wind. Treeline temperature -10 °C, potential for temperature inversion with warmer temperatures in the alpine.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Use caution above cliffs and terrain traps where even small avalanches may have severe consequences.
  • Carefully evaluate steep lines for wind slabs.

Régions couvertes