Bulletin d’avalanche

Waterton Lakes

Feb 8 – 11, 2019Parks Canada
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Archivé · expiré 8 years ago

Danger d’avalanche

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

Ski conditions are good at Cameron Lake but be on the look out for pockets of Windslab.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    Windslabs have formed with recent SW winds. Expect reverse loading as the wind swings NE Friday Morning

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    2–3
    A layer of weak facets is lurking at the bottom of the snowpack. Though there has been limited activity on this layer, it is still on our mind with consistent sudden collapse results in test profiles.

Weather Forecast

Friday: Cloudy with isolated flurries. Trace amounts of snow.  Alpine high -11. Light NE windsSaturday: A mix of sun and cloud with isolated flurries. Trace amounts of snow. Alpine high of -28. Moderate NE winds.Sunday: Cloudy with sunny periods. Alpine high -20. Light E winds

Snowpack Summary

20-30cm of facetting storm snow has been redistributed by SW winds. This new snow sits on a variety of previous wind affected surfaces including a melt freeze crust up to 2000m on all asp. The Midpack is strong in deep snowpack areas but the facets at the base of the snowpack remain a concern in shallow areas.

Avalanche Summary

Evidence of natural Size 1 loose dry avalanches still visible from previous storm. No new avalanche activity last 48h.

Confidence

Régions couvertes