Boletín de aludes

Banff Yoho Kootenay

May 5 – 6, 2019Parks Canada
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Archivado · caducó 7 years ago

Peligro de aludes

Tue
Wed
Alta montaña
Sin grado
Límite del bosque
Sin grado
Bajo el límite
Sin grado

Lo esencial

Regular avalanche forecasts are now finished. Use our weather stations, the ACMG Mountain Condition Reports, and Mountain Information Network to stay up to date on current conditions, or call Visitor Safety at 403-762-1470 with specific questions.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–2

    Any significant storms or increased winds will redistribute soft snow in the alpine and form wind slabs in lee areas. Watch for wind loading when entering steeper, more committing ski lines or climbing alpine routes.

  • Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely - Possible
    Tamaño
    1–2

    Though not widespread, this layer of facets over crusts from mid April has been reactive in the alpine for a couple weeks and may persist for the next week or two. Some deeper persistent layers may also wake up as temperatures climb later in spring.

  • Loose Wet

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    1–1.5

    If the sun comes out for any length of time or daytime temperatures rise above freezing, expect loose wet avalanches out of steep terrain. Cornice failures will also increase with warm temperatures.

Weather Forecast

Go to www.avalanche.ca/weather/forecast for the current weather forecast.

Snowpack Summary

New snow instabilities are generally settling rapidly and alpine N aspects remain cold and dry. Concern remains for alpine solar aspects where April facets between crusts have been reactive in the past week. Treeline and below a spring melt freeze snowpack exists with crusts in the AM and increasing hazard in the PM depending on temperatures.

Avalanche Summary

As of May 5th, loose wet avalanches with daytime warming on solar aspects and lower elevations, and a few wind and storm slabs in the alpine up to size 2 were reported in the past week. Increasing temperatures in the next weeks will lead to increased avalanche avalanche activity and cornice failures especially during the hottest parts of the day.

Confidence

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