Boletín de aludes

Kananaskis

Apr 2 – 3, 2018Alberta Parks
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Archivado · caducó 8 years ago

Peligro de aludes

Wed
Thu
Alta montaña
2 · Moderado
Límite del bosque
2 · Moderado
Bajo el límite
1 · Débil
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Lo esencial

The snowpack is a ways off the typical melt-freeze cycle normally found at this time of year. Still feels like winter out there with lots of good skiing to be found.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–2.5
    Watch for both surface and near-surface wind slabs in Alpine terrain and just into the upper edge of Treeline. These slabs were formed during a switch from NW wind to SW, so they do exist on multiple aspects.

  • Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely - Possible
    Tamaño
    1–2.5
    The March 15th melt-freeze crust, buried 30-50cm on solar aspects, could be an issue on bigger slopes, particularly in the Alpine. Evaluate the snowpack for the presence/absence of this problem layer before committing to a terrain feature.

Confidence

High -

Weather Forecast

Unseasonably cool weather through Thursday will maintain the winter conditions we have been experiencing. Tuesday is expected to be a mix of sun and cloud with isolated flurries. Alpine areas will reach a high of -11 °C with moderate westerly winds. Similar conditions will persist until Friday when a slight warm-up is expected.

Avalanche Summary

No new avalanche activity was observed today.

Snowpack Summary

A few centimetres of fresh snow fell in the past 24 hours. The recent storm snow the we received earlier in the week is settling and beginning to strengthen. Isolated wind slabs are being found in Alpine terrain along ridge crests and gully features but do not extend far down slope. On solar aspects there is a new thin melt freeze crust the developed on Saturday and then the deeper march 15th crust down closer to 50cm. Field tests are showing no results on this crust so far but we are still cautious in bigger south facing terrain. Dig down and evaluate this interface before committing to a feature.

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