Boletín de aludes

Banff Yoho Kootenay

May 4 – 5, 2019Parks Canada
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Archivado · caducó 7 years ago

Peligro de aludes

Mon
Tue
Alta montaña
2 · Moderado
Límite del bosque
1 · Débil
Bajo el límite
1 · Débil

Lo esencial

Localized snow amounts may vary at higher elevations. Deeper areas could release larger than expected avalanches.

Problemas de aludes

  • Wind Slabs

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

    Continued precipitation and moderate winds have formed small pockets of wind slab in immediate lee features at higher elevations. Though in many areas these slabs will be small, localized areas of heaver accumulations may have formed larger slabs.

  • Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–2.5

    Though not widespread, where this layer does exist ,expect it to be most reactive in areas where a slab sits over previously formed crusts. On Tuesday we observed several large skier triggered and natural avalanches fail on this layer.

  • Loose Wet

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

    If the sun comes out for any length of time expect loose wet avalanches out of steep sun exposed terrain.

Weather Forecast

Mixed sun and cloud with isolated convective flurries or rain at lower elevations is forecasted through the weekend with light to moderate SW wind.

Snowpack Summary

5 to 30 cm of new snow and recent winds have created soft slabs in immediate lees in the alpine. Moist snow observed on solar aspects, but alpine north aspects are staying dry. Concern still exists for a facet layer down 30-50 cm which is producing clean shears with snow-pit tests and has been reactive to skier triggering.

Avalanche Summary

No new avalanches were reported today.

Confidence

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