Bulletin d’avalanche

Jasper

Feb 5 – 6, 2015Parks Canada
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Archivé · expiré 12 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

High snowfall with strong winds and warm temperatures are expected on Friday.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–2
    Windslabs have developed on lee and cross loaded features at alpine elevations.

  • Deep Persistent Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–3
    This layer remains a concern in isolated areas above treeline and may be triggered by large loads such as cornices, surface slides or from shallow areas by skiers. The entire snowpack throughout the forecast region is sitting on 20cm of depth hoar.

Weather Forecast

Snow is forecasted for the region beginning on Thursday. The intensity of snow will increase on Friday and then taper off Saturday.  Up to 40cm is expected. Along with the snow, temperatures will rise and winds will increase, from the southwest.

Snowpack Summary

Surface hoar developed overnight. 5-20cm of new snow sits on the rain crust that formed last week.  The rain crust can be found on all aspects up to 2100m. Wind slabs can be found on lee aspects and cross loaded features in the alpine.

Avalanche Summary

No new avalanches observed along the Icefields Parkway today.  Good visibility.

Confidence

Intensity of incoming weather systems is uncertain

Régions couvertes