Bulletin d’avalanche

Jasper

Feb 10 – 11, 2012Parks Canada
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Archivé · expiré 15 years ago

Danger d’avalanche

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

Points saillants

Ice climbers should consider increase in natural activity in the afternoon especially on solar aspects.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–3
    The majority of the windslabs are bonding well, but there remains the potential to trigger isolated slabs in steep, wind loaded areas in the alpine. Assess terrain cautiously.
  • Loose Wet

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–2
    Large temperature swings from -20 at night to +2 during the day has us in a melt freeze cycle on south aspects. The temperature inversion was less today but still prevalent. Steep south alpine slopes continue to release naturally in the afternoon.
  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    2–4
    Solar radiation has led to a re-awakening of two instabilities. Recent wind slabs and the early season basal facet layer. They have produced a few large avalanches on steep unsupported alpine features. Activity was less today yet remains a concern.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

The weather pattern is stable

Régions couvertes