Bulletin d’avalanche

Jasper

Jan 23 – 24, 2014Parks Canada
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Archivé · expiré 13 years ago

Danger d’avalanche

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

Although natural avalanches are unlikely right now, human triggered avalanches are still possible. Be cautious around shallow areas in big terrain, where the consequence of triggering an avalanche would be serious.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–3
    Cross loaded gullies may be the most attractive after the intense wind scouring in the alpine, but careful evaluation is essential to check for the presence of touchy windslabs.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    2–3
    Natural activity has tapered off on this layer, but it is still possible to trigger big avalanches in shallow locations.

Weather Forecast

Mild temperatures continue, with overnight lows to -10C and daytime highs to -2C at treeline.  Freezing levels expected to rise to 2100m by later in the weak. Light Westerly winds and trace to no precipitation until next wednesday.

Snowpack Summary

Shallow and weak snowpack sits on 10-20cm of basal facets. Midpack hard slabs provide bridging above treeline and into the alpine. Extensive scouring at upper elevations. Surface hoar growth observed in the last few days up to size 5mm below treeline and up to size 3mm above treeline.

Avalanche Summary

Natural activity has tapered off. No new avalanches observed or reported.

Confidence

The weather pattern is stable

Régions couvertes