Bulletin d’avalanche

South Rockies

Jan 25 – 26, 2012Avalanche Canada
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Archivé · expiré 15 years ago

Danger d’avalanche

Fri
Sat
Alpin
3 · Marqué
Limite forestière
3 · Marqué
Sous la limite
2 · Modéré
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Problèmes avalancheux

  • Wind Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1–4
    Winds are expected to continue to blow at strong values Thursday. Expect potentially sensitive wind slabs on slopes lee to the W, SW winds.

  • Storm Slabs

    • Alpin
    • Limite forestière
    • Sous la limite forestière
    Probabilité
    Likely
    Taille
    1–3
    Tuesday nights storm brought 10 - 15 cm to the region. Watch for small loose snow avalanches in protected areas & soft slab avalanches in areas that are exposed to wind.

Confidence

Fair - Timing, track, or intensity of incoming weather is uncertain on Saturday

Weather Forecast

Winds back down from Extreme to Strong at ridgetop Thursday under quite mild temps. Expect a day time high @ 1500 m of -2 with an overnight low of -4. The region will likely see a bit of snow from a weak pulse moving through, but just a few cm are expected. High pressure takes over Friday making for dry conditions, but we’ll still see cloudy skies as NW flow is aloft.

Avalanche Summary

Very little avalanche activity has been reported or observed recently.

Snowpack Summary

Last week 40-60cm of snow formed soft slabs over a crust/facet/surface hoar combo which has settled remarkably quickly. Our field team was out over the weekend covering ground & they saw very little in the way of avalanche activity.Deeper in the snowpack, a surface hoar layer buried in early December remains a concern, as avalanches triggered on this layer would be destructive. There may have been releases on this layer post storm but at this time nothing has been reported. It should be noted that basal facets exist in many parts of the region too. Facets sandwiched between two firm layers in the top metre of the snowpack are being monitored in the south-east.

Régions couvertes