Boletín de aludes

Banff Yoho Kootenay

Dec 16 – 17, 2013Parks Canada
Ver en el mapa
Archivado · caducó 13 years ago

Peligro de aludes

Mon
Tue
Alta montaña
3 · Notable
Límite del bosque
3 · Notable
Bajo el límite
1 · Débil
Abrir el mapa completo

Lo esencial

Increased hazard due to moderate W winds, continued light precipitation and mild temperatures is present especially in areas near the divide where more snow fall has occurred. Minimize exposure to wind loaded areas over the next few days. CJ

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    1–2
    Moderate to strong W winds, mild temperatures and light snowfall are creating wind slabs in open areas at tree line and in the alpine which are beginning to fail naturally in steep alpine terrain and are susceptible to human triggering.

  • Deep Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–3
    20-25cm of storm snow combined with mild temperatures and wind may start causing failures in the deeper basal facets or on the Oct melt freeze crust. Use caution in steep terrain.

Weather Forecast

Continued moderate to strong West winds, light precipitation, and alpine temperatures between -5 and -10'C are forecast over the next three days with a cooling and clearing trend beginning on Wednesday.

Snowpack Summary

25cm of storm snow is present near the divide. Moderate to strong W winds and mild temperatures have formed wind slabs in open areas at tree line and above. The mid pack is facetted but still dense enough to support the weight of a skier in many areas. The October melt freeze crust or a mix of depth hoar and facets is present at the base.

Avalanche Summary

One size 2 natural avalanche slid over the "Heineken Hall" ice climb on Mt Dennis today reaching the bottom of the run out zone. Several size 1 moist sluffs were also observed in the Field area out of steep tree line terrain. One size 2 was observed yesterday on the "Sacre Bleu" ice climb on Mt Rundle. Wind appears to be the trigger in all cases.

Confidence

Intensity of incoming weather systems is uncertain

Regiones cubiertas