Boletín de aludes

Jasper

Jan 5 – 6, 2019Parks Canada
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Archivado · caducó 8 years ago

Peligro de aludes

Sun
Mon
Alta montaña
3 · Notable
Límite del bosque
3 · Notable
Bajo el límite
3 · Notable
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Lo esencial

Heavy, wet and dense snow throughout the forecast region. Check Alberta 511 for highways updates.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Very Likely
    Tamaño
    1–3
    Up to 45cm of fresh snow, warm temperatures and moderate to strong SW winds are creating widespread touchy windslabs and storm slabs.

  • Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely - Very Likely
    Tamaño
    1.5–3.5
    The new snow has added to the load on the Dec 11th weak interface. Buried more than a meter deep in some locations, this layer is strengthening but has been reactive in shallow snowpack areas recently.

  • Deep Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    1.5–4
    The base of the snowpack is weak and facetted. In shallow snowpack areas the new snow will likely overload this weakness.

Weather Forecast

Cloudy with sunny periods. Alpine temperature: High -6 °C. Ridge wind southwest: 10 km/h. Freezing level at valley bottom.A detailed mountain weather forecast is available from Avalanche Canada.

Snowpack Summary

Up to 45cm of snow has fallen along the 93N. Moderate-strong SW winds have built fresh wind slabs in open terrain and storm slabs in sheltered areas. Expect natural avalanche activity with the rapid loading. The Dec. 11th layer (surface hoar and facets) persists down 60-150cm, and continues to produce avalanches in shallow snowpack areas.

Avalanche Summary

Snow, and poor visibility made travel and observations difficult. Evidence of a large natural cycle continuing for the weekend.

Confidence

Due to the number of field observations

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