Bulletin d’avalanche

Jasper

Apr 18 – 19, 2024Avalanche Canada
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Archivé · expiré 2 years ago

Danger d’avalanche

Sat
Sun
Alpin
1 · Faible
Limite forestière
1 · Faible
Sous la limite
Sans niveau

Points saillants

Variable wind loading on all aspects in the alpine.

Large cornices present. Seasonal coverage on all glaciers is both thin and weak. For a fleeting moment, avalanches are the least of your worries in the back-country.

Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    1–2

    Moderate to strong winds have transported new snow into immediate lees, look out for new wind slabs over hard surfaces (sun crusts and old wind slabs).

  • Cornices

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Unlikely - Possible
    Taille
    2–3

    Difficult to predict, super destructive, and powerful when moving and will likely affect all elevations in its path.

Confidence

High

Avalanche Summary

No new avalanches were observed or reported.

Snowpack Summary

Convective spring storms have spread a trace, up to 10cm of new snow through the region. HN sits on a supportive snowpack to mountaintops on all aspects.

There's a strong midpack and dry snow above 2400m on shaded aspects. Solar aspects start as a supportive, hard surface crust that breaks down with strong sun and temps. BTL travel is quite variable but, almost always poor by early PM.

Weather Summary

Mountain Weather Forecast is available at Avalanche Canada

Thursday Evening

Clearing and cooling overnight. Alpine low -13 °C. Ridge winds Light. Freezing level valley bottom.

Friday

Sunny with cloudy periods. Alp High -4 °C. Ridge winds, light, easterly: Freezing level 1700m

Terrain and Travel Advice

  • Watch for wind-loaded pockets especially around ridgecrest and in extreme terrain.

Régions couvertes