Boletín de aludes

Jasper

Dec 29 – 30, 2013Parks Canada
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Archivado · caducó 13 years ago

Peligro de aludes

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

Happy holidays!  Don't let your guard down with triggering the deep basal weakness.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely - Possible
    Tamaño
    1–2
    New snow overnight and winds will continue wind slab development. Fresh snow may be hiding this condition.

  • Deep Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    2–3
    Expect this layer to persist for a long time. Best to make conservative choices as triggering this layer could have severe consequences. Likely trigger locations are shallow locations but everything is shallow right now.

Weather Forecast

The area may receive 5-10cm of snow between Sunday and Tuesday. Expect seasonal temperatures and gusting 40km/hr westerly winds at higher elevations.

Snowpack Summary

5-10cm last night in the Icefields area is not enough to change the snowpack. It remains generally shallow, weak, with a variably distributed deep persistent slab overlying weak basal layers of depth hoar, crusts, and/or facets. Windslabs have formed in exposed treeline and above areas. Below treeline remains unsupportive.

Avalanche Summary

Four new natural slab avalanches size 2.5-3 was observed today in the alpine on a West aspect in shallow rocks, and steep unskiable terrain at 2400m running on basal weakness. The avalanches were restricted to small area between Boundary peak and Panther falls where snowfalls were slightly more and the temperature dropped quickly in 2 hours.

Confidence

Regiones cubiertas