Boletín de aludes

Banff Yoho Kootenay

Mar 9 – 10, 2015Parks Canada
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Archivado · caducó 12 years ago

Peligro de aludes

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

Warm temperatures forecast for this week should be pause for thought after such a long spell of low danger. Areas such as south facing gullies should be avoided this week, as slush and rockfall can be expected. Valley bottoms may become isothermal.

Problemas de aludes

  • Loose Wet

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    1–2
    The warm temperatures will create wet sluffs and rockfall on south facing cliffs and gullies below treeline. Ice climbers should avoid this terrain, and instead search for north facing climbs where the cold temperatures will keep things solid.

  • Deep Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely
    Tamaño
    2–3
    The lower half of the snowpack is weak due to the presence of basal facets and depth hoar. Natural and human triggering is unlikely as the weak layer is dormant, but it is still a good practice to avoid steep, open, rocky slopes with shallow snow.

Weather Forecast

Looks like a warm week ahead as a warm, westerly flow runs across the region. Tuesday looks like a mostly sunny day with freezing levels reaching 2000m and alpine winds remaining strong from the west. Looks like some precipitation coming for Thursday (up to 10 cm).

Snowpack Summary

Despite the warm temperatures, strong winds above treeline today kept the snow surface cool in all but the most sheltered areas. The snowpack remains solid, with the exception of isolated steep, south facing slopes below 1900m where solar triggered wet avalanches can be expected in the afternoon. The facets near the ground remain dormant.

Avalanche Summary

No new avalanches reported or observed today.

Confidence

Timing or intensity of solar radiation is uncertain

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