Boletín de aludes

Waterton Lakes

Feb 15 – 18, 2019Parks Canada
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Archivado · caducó 8 years ago

Peligro de aludes

Sat
Sun
Alta montaña
4 · Fuerte
Límite del bosque
3 · Notable
Bajo el límite
3 · Notable
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Lo esencial

Our Storm Slab problem will continue to build into the weekend. Pay attention to snowfall amounts with potential upslope influence in our area.

Problemas de aludes

  • Loose Dry

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    1–2
    Use caution in steep, sheltered terrain.

  • Storm Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely - Very Likely
    Tamaño
    1–2
    Moderate Compression Test Results today on Forum Ridge at the Storm snow interface. 15-30cm of snow over the weekend will continue to build storm slabs.

  • Deep Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    2–3
    A layer of weak facets is lurking at the bottom of the snowpack. This new snow may be enough to affect this basal weakness in shallow snowpack areas.

Weather Forecast

Tonight: 4-8cm. Light SW Wind. Alpine low -12Friday: Flurries. 5-10cm with moderate SW winds. Alpine high - 8Saturday: Cloudy with Scattered Flurries. 5-10cm. Moderate SW wind. Alpine high -9Sunday: Cloudy with Sunny Periods. Trace precipitation. Alpine high -18

Snowpack Summary

30-45cm of snow in the past 48h with moderate SW winds have created reactive soft slabs. These new storm slabs sit over a variety of wind affected surfaces including pockets of Windslab near ridgetop. The Midpack is strong in deep snowpack areas but this increase in loading will stress the weak, facetted basal snowpack.

Avalanche Summary

Size 2  Natural on Mt.Rowe Wed Feb. 13th.Size 1.5 Natural South end of Forum Ridge Wed Feb 13th.Multiple Loose Dry Avalanches observed in steep terrain

Confidence

Intensity of incoming weather systems is uncertain on Saturday

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