Boletín de aludes

Northwest Inland

Mar 16 – 17, 2013Avalanche Canada
Ver en el mapa
Archivado · caducó 14 years ago

Peligro de aludes

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

Lo esencial

Problemas de aludes

  • Cornices

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    2–5
    Cornices are well developed. They are likely to be most sensitive when exposed to daytime heating or solar radiation.

  • Storm Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    1–5
    Recent new snow has consolidated into a slab and is reacting to human triggers. The primary weak layer comprises surface hoar and appears to be touchy.

Confidence

Fair - Timing or intensity of solar radiation is uncertain

Weather Forecast

Synopsis: Northwest flow with limited moisture will bring cooler temps and a chance of flurries through the period.Sunday and Monday: Chance of flurries, with significant breaks in the cloud giving daytime warming both days. Afternoon freezing level around 500 m. Winds light northwesterly.Tuesday: Dry during the day, becoming increasingly cloudy through the day. Freezing level 200 m. Winds light southerly.

Avalanche Summary

On Friday, a size 2 remote-triggered avalanche was reported from a west aspect at 1450 m, likely failing on the March 9th surface hoar layer down around 50 cm. Another human-triggered avalanche was reported from a north aspect slope.

Snowpack Summary

20-40 cm of recent storm snow rests on a variety of old snow surfaces, including crusts, previous wind slabs and surface hoar (buried March 9th). Warmer temperatures and recent winds have now set this new snow into a reactive slab. The March 9th surface hoar layer is reported to be very touchy and appears to exist at all elevations and on a variety of aspects. I suspect cornices have become well-developed and could easily become unstable with daytime heating. The mid snowpack is generally well settled and strong.

Regiones cubiertas