Boletín de aludes

Kananaskis

Jan 7 – 8, 2014Alberta Parks
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Archivado · caducó 13 years ago

Peligro de aludes

Thu
Fri
Alta montaña
3 · Notable
Límite del bosque
2 · Moderado
Bajo el límite
1 · Débil
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Lo esencial

Forecasted strong winds have not materialized over the past 24 hours but they are expected to pick up again overnight and into Wednesday.  With loose dry snow available for wind transport we expect to see increased slab development.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Very Likely
    Tamaño
    1–4
    Winds were generally light on Tuesday but are forecast to increase again overnight.

  • Persistent Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Possible - Likely
    Tamaño
    2–6
    A concern in all elevation zones on all aspects - any avalanche has the potential to step down into the deeper weakness and involve the entire winters snowpack.

  • Loose Dry

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Very Likely
    Tamaño
    1–2
    This problem becoming less widespread  but  still a concern but still in gullied features or terrain traps.  A potential trigger for slabs on lower slopes.

Confidence

Good

Weather Forecast

Continuing to see generally mild temperatures with no new precip.  winds are forecast to pick up again over Tuesday night and into Wednesday.

Avalanche Summary

Several thin SSL at south end of Tent Ridge possibly 24-48 hours old.  Possible cornice or loose snow triggers.  Ran through rocky gullies onto skiable terrain near base of cliffs.  No other recent activity observed.  Size 3 SSL reported in Mt Kidd Bowl but no accurate indication of date of occurrence - debris ran to between two small ice climb practise areas near lower end of runout.

Snowpack Summary

Hasty profile at TL site on Little Tent Ridge on N asp.  HS 155cm, 20cm HST overlying 10cm P WSL  with 10cm FC below that layer.  1F-P slab overtop of 30-40cm basal FC's.  No Oct CR observed at this site.

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