Bulletin d’avalanche

North Rockies

Mar 24 – 25, 2020Avalanche Canada
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Archivé · expiré 7 years ago

Danger d’avalanche

Thu
Fri
Alpin
2 · Modéré
Limite forestière
1 · Faible
Sous la limite
1 · Faible
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Points saillants

Recent new snow fell with winds blowing from a variety of directions. 

Problèmes avalancheux

  • Wind Slabs

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

    New snow Sunday and Monday combined with wind blowing from a variety of directions will have created fresh wind slabs in exposed areas.

Confidence

Moderate -

Weather Forecast

Monday Night: Cloudy with clear periods. Moderate northeast wind. Alpine high temperature around -10.

Tuesday: Cloudy with clear periods. Moderate to strong north wind. Alpine high temperature around -7.

Wednesday: Mix of sun and cloud. Moderate west wind. Alpine high temperature around -4.

Thursday: Cloudy with flurries. Moderate to strong west wind. Alpine high temperature around -2. Freezing level 1500 m.

Avalanche Summary

No new avalanches were reported over the past couple of days.

Snowpack Summary

5-15 cm of recent new snow sits on top of a variety of old surfaces including hard wind affected snow, sun crust on slopes facing the sun and a melt freeze crust at lower elevations.

At lower elevations, two surface hoar layers 50-60 cm and 75-90 cm below the surface may still be present in the northern part of the region. Warm temperatures for an extended period last week have likely had a stabilizing effect on these buried weak layers. 

Terrain and Travel

  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
  • Recent wind has varied in direction so watch for wind slabs on all aspects.
  • Minimize exposure to sun-exposed slopes when the solar radiation is strong.

Régions couvertes