Boletín de aludes

Northwest Inland

Feb 28 – Mar 1, 2015Avalanche Canada
Ver en el mapa
Archivado · caducó 12 years ago

Peligro de aludes

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

Lo esencial

Are you a member of Avalanche Canada? Join today at avalanche.ca/membership.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    1–2
    Wind slabs may be lurking on slopes lee to outflow winds. These can be triggered by a person, but have been reported to be mainly small.

  • Loose Wet

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible
    Tamaño
    1–3
    Sun may weaken the surface snow, causing loose wet avalanches in steep terrain.

  • Deep Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely
    Tamaño
    3–6
    This is a low probability problem with large consequences. A weak basal layer resulted in several full depth avalanches during the last sunny period which could be repeated this weekend. Avoid steep, sun exposed slopes during the afternoon.

Confidence

Poor - Due to the number of field observations

Weather Forecast

Apart from some light snow or flurries on Sunday, the next few days look dry and cool. Winds are moderate to strong from the north quarter (although wind direction will vary locally).

Avalanche Summary

Avalanches are generally unlikely, but small loose sluffing from steep sun exposed slopes is possible during warm parts of the day. Cornice fall and thin wind slabs may be triggered by people. Last week several full-depth avalanches up to size 3 were observed on all but north aspects. As we get increased sun and warming, these types of large isolated avalanches could once again become a problem.

Snowpack Summary

Cornices may be sensitive to warm temperatures. Wind slabs may be lurking on slopes lee to outflow winds. A dusting of recent snow may overlie old variable snow surfaces including wind slabs, a sun crust or old rain crust, surface hoar, and/or surface facets. A layer of surface hoar buried in the upper snowpack is worth investigating before committing to any big alpine terrain. At the base of the snowpack, weak facets may be persisting.

Regiones cubiertas