Boletín de aludes

Banff Yoho Kootenay

Apr 30 – May 1, 2014Parks Canada
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Archivado · caducó 12 years ago

Peligro de aludes

Fri
Sat
Alta montaña
4 · Fuerte
Límite del bosque
4 · Fuerte
Bajo el límite
4 · Fuerte
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Lo esencial

There will not be a strong freeze tonight - skies will be cloudy with some clear periods and freezing levels will only dip to approximately 2500 m.  Crusts will not form well tonight and will break down early.

Problemas de aludes

  • Loose Wet

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely
    Tamaño
    1–3
    Expect loose avalanches in steep sun affected terrain initiating from cornice failures or snow falling off cliffs/rocks.

  • Deep Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    3–4
    Without a good freeze tonight and warm temps on Thursday, it would not be a surprise to see the odd large avalanche on this layer.

Weather Forecast

There will not be a strong freeze tonight.  Freezing levels will only dip to 2500 m for a short period tonight and a slight temperature inversion is expected.  Thurs will be cloudy with some sun alpine temps of 10-14C &  showers/flurries move in overnight. Friday temperatures will drop through the day, with 5-10 cm/day forecasted for Fri/Sat & Sun.

Snowpack Summary

A solid melt freeze crust to exists up to 2400 m, a little lower on North aspects. Dry uncrusted snow with up to 10cm of settled powder exists only steeper North aspects. Isolated, small windslabs exist in leeward areas in the high alpine. Crusts will not be as strong Thursday with a lack of overnight freeze and a slight inversion forecasted.

Avalanche Summary

Several loose snow avalanches to size 2.5 pouring off cliffs with sun affect as early as 8 am.

Confidence

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