Bollettino valanghe

South Rockies

Dec 13, 2017Avalanche Canada
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Archiviato · scaduto 9 years ago

Pericolo valanghe

Thu
Fri
Alta quota
2 · Moderato
Limite del bosco
1 · Debole
Sotto il limite
1 · Debole

In sintesi

Isolated wind slabs may be found at upper elevations. Good quality riding can be found on sheltered, shady slopes.

Problemi valanghivi

  • Wind Slabs

    • Alta quota
    • Limite del bosco
    • Sotto il limite del bosco
    Probabilità
    Unlikely - Possible
    Dimensione
    1–2
    Variable winds may have formed stiff wind slabs on a wide range of aspects at higher elevations.

Confidence

Moderate - The weather pattern is stable

Weather Forecast

Strong alpine temperature inversions continue.Wednesday: Mostly cloudy with alpine temperatures near -1. Ridgetop winds light from the west.Thursday: Cloudy with sunny periods. Alpine temperatures near -1 and light west winds.Friday: A mix of sun and cloud. Alpine temperatures near -2 and freezing levels 1100 m. Ridgetop winds mostly light accompanied by strong gusts from the west.

Avalanche Summary

No new avalanche activity has been observed. Submit your observations to the Mountain Information Network.

Snowpack Summary

A variety of snow surfaces exist throughout the region. Stiff wind slabs sit on a wide range of aspects in the alpine and exposed treeline terrain. Windward slopes have been scoured down to the old rain crust or rock and sun crusts have formed on southerly slopes from the sun and recent warm temperatures. Sheltered treeline and below treeline slopes may have a light dusting of low-density snow that intermingle with surface hoar and surface facets. This is what I call a mixed bag!!The two crusts that were buried near the end of November can now be found approximately 30 cm and 60 cm down. A third crust from the end of October exists as a "facet/crust" combo near the base of the snowpack approximately 50-100 cm down and recent snowpack tests done on this layer are showing hard results. These rain crusts will likely be with us all winter but may not pose a problem until we see a significant change in the weather.

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