Bulletin d’avalanche

Jasper

Feb 10 – 11, 2013Parks Canada
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Archivé · expiré 14 years ago

Danger d’avalanche

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

Public reports indicate some good skiing can be found where recent snow is sitting on the previous hardslab in sheltered locations in the alpine.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    Recent snowfall amounts vary depending on location. Reports from Shangri-La indicate as much as 10cm of new snow.  This new snow  is forming wind slabs that are sitting on the previous widespread hardslab and may be sensitive to light triggers.

  • Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely
    Taille
    1–3
    The hard windslabs that dominate the alpine snowpack have been unreactive lately. It still may be possible to trigger an avalanche on steep unsupported terrain from thin areas and edges of these slabs.

Weather Forecast

No significant precipitation is expected in the next 3 days. Temps expected to be mild and skies partly cloudy.  Freezing levels to remain below 1300m.

Snowpack Summary

Hard windslab is bridging the weak basal facets above treeline.  Below treeline the mid-pack is weak and shallow. Scattered flurries over the past 48 hours have left a dusting of new snow in the Icefield area and up to 10cm in the Maligne area.

Avalanche Summary

No avalanches were observed on a road patrol of the Icefields Parkway and Maligne Valley.

Confidence

Due to the number of field observations

Régions couvertes