Boletín de aludes

Jasper

Dec 28 – 29, 2015Parks Canada
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Archivado · caducó 11 years ago

Peligro de aludes

Mon
Tue
Alta montaña
1 · Débil
Límite del bosque
1 · Débil
Bajo el límite
1 · Débil
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Lo esencial

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely - Possible
    Tamaño
    1–2
    Wind slabs can be expected to be most developed in the alpine with some redistribution and reverse-loading to happen as the winds shift 180 degrees.

  • Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely - Possible
    Tamaño
    1–2
    The facetting process is weakening the mid-pack from the top down and bottom up. This situation would make it possible to trigger the weakness at the base of the snowpack as the support underfoot shrinks. Watch for this in shallower areas.

Weather Forecast

The coming high pressure system (expected Tuesday and dominating the rest of the week) will displace a minor low from the interior. Increasing cloud cover and light flurries expected overnight and into the day Monday; about 5-10cms. Winds continue to be gusty in open areas, shifting overnight from the SE to W. Temps moderating to around -10 to -15.

Snowpack Summary

Supportive and well settled snowpack above 1700m. Thin wind slabs in the alpine on the lee side of wind exposed terrain. Snowpack continues to facet with recent cold temperatures losing some overall depth as it drys and settles. The base of the snowpack is weakening from the cold but thus far the mid-pack is still bridging this growing weakness.

Avalanche Summary

Small loose snow avalanches in steep isolated areas. Observed below tree-line where the snowpack is shallow.

Confidence

Regiones cubiertas