Lawinenlagebericht

Waterton Lakes

Dec 23 – 27, 2019Parks Canada
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Archiviert · abgelaufen 7 years ago

Lawinengefahr

Wed
Thu
Hochgebirge
4 · Gross
Waldgrenze
3 · Erheblich
Unterhalb
3 · Erheblich

Kernpunkte

This is a dangerous time. We are through the storm and natural activity will begin to taper off, but the potential for large avalanches running to the valley bottom remains. Human triggering of avalanches is likely.

Lawinenprobleme

  • Persistent Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Likely
    Größe
    2–3

    Recent Rain, snow and warm temperatures has overloaded early season weak layers causing large avalanches. As activity on this layer begins to slow down, be aware of the potential for large triggers such as cornices to cause large avalanches.

  • Storm Slabs

    • Hochgebirge
    • Waldgrenze
    • Unterhalb der Waldgrenze
    Wahrscheinlichkeit
    Likely
    Größe
    1–2

    Continued winds will ensure storm slabs remain reactive.

Weather Forecast

Freezing levels will remain will sit around 1600m today, and slowly descend through the week. Light flurries are expected with strong westerly winds monday morning easing off in the evening.

Snowpack Summary

60cm+ of wet snow and rain in the Cameron Lake area has arrived with extreme northwest winds and a freezing level around 1900m, critically loading the snowpack. A weak crust facet combo formed in November is down 60cm, and additional crust/facet layers formed in October form the bottom of the snowpack.

Avalanche Summary

A widespread natural cycle was observed on Saturday along the Red Rock and Akamina parkways, with avalanches to size 2 in the storm snow and some larger ones failing on deep persistent weak layers. A size 3 natural avalanche occurred on Mt Bertha early Sunday morning covering the Bertha Falls trail in debris.

Confidence

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