Boletín de aludes

Kananaskis

Dec 4 – 5, 2017Alberta Parks
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Archivado · caducó 9 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 skiing is good right now, but be diligent when evaluating the avalanche problems. Increased northerly winds on Tuesday will create additional wind slabs.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–2
    Recent wind slabs 30-50cm deep are being encountered in the Alpine on N and E aspects. These slabs do not yet extend far down-slope, but be cautious near ridge-crest. The strong northerly flow will add southerly aspects to the problem area tomorrow.

  • Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely - Possible
    Tamaño
    2–3
    Remember, in shallow areas it is still possible to trigger the deeper layers and wake up the weak facets around the October crusts.

Confidence

High -

Weather Forecast

A ridge of high pressure is building over the region bringing a cool northerly flow. Tuesday in Kananaskis will be a mix of sun and cloud with a high of -6 C. Ridge-top winds will be from the NW at 30-50 km/h. There is no precipitation in the forecast for at least the next 5 days.

Avalanche Summary

A few slab avalanches up to size 2.5 were observed yesterday on steep N and E aspects in the Alpine. No new avalanches were observed today.

Snowpack Summary

Pockets of wind slab ranging from 30 to 50cm thick are present in Alpine areas in lee and cross-loaded features. At the moment these slabs do not extend far down-slope, but this will change as winds increase. The November crust layers are buried between 50 and 70cm at Treeline and do not appear particularly active, but are certainly worth keeping an eye on. The basal layers of the snowpack are made up of a mix of crusts from October and facets. These layers continue to show moderate to hard results in snowpack stability tests.

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