Boletín de aludes

Banff Yoho Kootenay

Apr 21 – 22, 2013Parks Canada
Ver en el mapa
Archivado · caducó 13 years ago

Peligro de aludes

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

Lo esencial

Good spring conditions exist. Recent storm snow has created wind slabs in open areas above treeline. Solar effect will become more of a concern throughout the week. JBW

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Unlikely - Possible
    Tamaño
    1–2
    Moderate winds have created areas of thin wind slabs in open areas above 2200 m. These slabs were more sensitive to triggering on southerly aspects where they overlie a smooth crust, but sare also a concern on northerly aspects.

Weather Forecast

Cool north westerly flow will prevail until Wednesday as a ridge becomes anchored off the coast. Unsettled conditions will bring convective flurries. The ridge builds inland for a significant warm up by Wednesday-Thursday.

Snowpack Summary

Cooler conditions should keep the crust solid for much of the day. Recent snow has created wind slabs just below ridge crests up to 30-40 cm thick. These slabs have been more touchy on southerly aspects where they overly a crust, but could be triggered on northerly aspects as well. Solar effect will loosen up the recent new snow on steeper terrain.

Avalanche Summary

Several small skier triggered windslabs up to size 1.5  have been reported over the last few days. These have been triggered on steep terrain just below ridgecrests. Storm snow over crust is the main ingredient.

Confidence

Regiones cubiertas