Boletín de aludes

Kananaskis

Jan 18 – 19, 2014Alberta Parks
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Archivado · caducó 13 years ago

Peligro de aludes

Mon
Tue
Alta montaña
3 · Notable
Límite del bosque
3 · Notable
Bajo el límite
2 · Moderado
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Lo esencial

The natural avalanche cycle has subsided but conditions remain ripe for human triggering. The basal weakness is a major concern. Terrain choices should be limited to low angle, well supported terrain with no overhead hazard.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    2–5
    Wind slabs up to 40cm thick are being encountered in immediate lees along ridge lines and in cross loaded features. Most of the recent natural avalanche activity has been obs in Alpine.

  • Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    3–6
    Avalanches are often stepping down to the basal October layers and involving the entire winters snowpack. In some areas a dense wind slab overlies this deeply buried weak layer, so the possibility for large and destructive avalanches exists.

  • Loose Wet

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    1–3
    Although temperatures will be slightly cooler on Sunday, loose wet slides out of steep solar aspects are still possible. Some slides are triggering small slabs on the underlying slopes.

Confidence

Good

Weather Forecast

Mostly sunny skies with slightly cooler temperatures on Sunday. Winds will be light to moderate from the West to NorthWest. No precipitation expected for at least a week.

Avalanche Summary

Pin-wheeling and small loose wet avalanches were observed today.

Snowpack Summary

No new snow overnight. Moist snow to 2400m on steep solar aspects. Surface growing in protected areas below treeline. Wind slabs in Alpine and Treeline areas persist and are sensitive to human triggering in steep and unsupported terrain. Basal facets/depth hoar remains a concern for full depth releases and wide propagations.

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