Boletín de aludes

Kootenay Boundary

Nov 23 – 24, 2012Avalanche Canada
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Archivado · caducó 14 years ago

Peligro de aludes

Sun
Mon
Alta montaña
Sin grado
Límite del bosque
Sin grado
Bajo el límite
Sin grado
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Lo esencial

This bulletin is based on limited data. Local variations in conditions are likely to exist. Check out the Forecasters Blog for further details on interpreting early season bulletins.

Problemas de aludes

  • Wind Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely - Very Likely
    Tamaño
    1–5
    Winds slabs have formed on the lee side of slopes and ridges, and could stay touchy throughout the weekend.

  • Storm Slabs

    • Alta montaña
    • Límite del bosque
    • Bajo el límite del bosque
    Probabilidad
    Likely - Very Likely
    Tamaño
    1–4
    Recent snowfall has continued to build storm slabs. They are likely touchy to rider triggers and may require a few days to settle out and start bonding to the upper snowpack.

Avalanche Summary

No new avalanches were reported. If you and your friends have been out exploring and riding in the backcountry, and have some observations to share please send an email to [email protected].

Confidence

Poor - Due to limited field observations for the entire period

Weather Forecast

A Pacific frontal system is moving through the interior regions Friday and extending into Saturday. This will bring strong ridgetop winds, and moderate amounts of snow, especially in upslope areas. After the front passes, a weak ridge of high pressure will push into the region bringing dryer, cooler, and clearing conditions that will last through the weekend. Freezing levels will stay in the valley bottom through the period.

Snowpack Summary

New storm snow will bury previously formed wind slabs, and continue to build storm slabs. An early November crust exists near the bottom of the snowpack, however there is no information leading me to think that it could act as a weak layer. Be aware of instability signs such as whumphing, which is a good indicator of a weak layer buried beneath and an unstable snowpack.  Snowpack depths on average are near 80 cm @1700 m, and near 100 cm at higher elevations. Below treeline may still be below threshold. Snowpack and conditions vary across the region, its important to be aware of YOUR local conditions.

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