Bulletin d’avalanche

Jasper

Apr 7 – 8, 2022
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Archivé · expiré 4 years ago

Danger d’avalanche

Sat
Sun
Alpin
3 · Marqué
Limite forestière
3 · Marqué
Sous la limite
3 · Marqué
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Points saillants

Hard hit of spring like conditions before a significant cooling trend leading into next week.

Planned closures of the Icefields Parkway between Parkers Ridge and Sask Crossing and Maligne Lake road. Timely updates to road status available at AB511

Problèmes avalancheux

  • Cornices

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible - Likely
    Taille
    1–3.5

    Fresh cornices are proving to be reactive with strong solar input and recent growth.

  • Loose Wet

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Possible
    Taille
    1–1.5

    Main concern during the heat of the day with rain and solar input.

  • Wet Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1–2

    Strong SW winds created fresh wind slabs. These new wind slabs sit over a variety of firm surfaces including wind effected snow and sun/temperature crusts.

Weather Forecast

Variable weather through out the forecast region with rain and/or snow possible at TL and below. Best to select area specific forecasts via Avalanche Canada's Mountain Weather Forecasts resources.

Snowpack Summary

Moderate to strong SW winds have redistributed recent snow (up to 15cm Icefields area) into lee features in the alpine and down into treeline. The freezing levels reaching well into TL with strong probability of rain on Friday. There is a sun crust high into the alpine on solar aspects and and melt freeze crust up to 2200m. Midpack is well settled.

Avalanche Summary

Previously reported size 1.5 windslab observed on Indian ridge NE aspect alpine; 2 size 2 cornice failures that triggered wind slab below 30-50cm deep E aspect alpine K2 feature at the icefields.

Confidence

Intensity of incoming weather systems is uncertain on Saturday

Régions couvertes