Avalanche forecast

South Rockies

Apr 7 – 8, 2017Avalanche Canada
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Avalanche danger

Sun
Mon
Alpine
2 · Moderate
Treeline
1 · Low
Below
1 · Low
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Highlights

Stay alert to changing snow conditions with elevation. Fresh wind slabs may exist below alpine ridgetops.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2
    New snow and moderate southwest winds have formed thin wind slabs below alpine ridgetops.

  • Cornices

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    2–3
    Cornices are large and may fall off naturally with daytime warming.

Confidence

High -

Weather Forecast

SATURDAY: Mix of sun and cloud with isolated flurries. Light to moderate westerly ridgetop winds. Freezing level up to 2000 m after a weak overnight freeze.SUNDAY: Mix of sun and cloud. Light southwesterly ridgetop winds. Freezing level around 1800 m.MONDAY: Mix of sun and cloud. Light southerly ridgetop winds. Freezing level around 1800 m.

Avalanche Summary

No new avalanches were reported on Thursday in this region.

Snowpack Summary

The freezing level on Friday was hovering around 2200m in most areas. Slight cooling overnight coupled with mostly cloudy skies will likely result in the formation of a thin surface crust that will break down during the day on Saturday. At higher elevations, new snow and wind have likely formed small wind slabs and cornices remain large and looming. The snowpack is well settled and continues to transition into a spring snowpack. The bottom third of the snowpack is composed of weak facets, but this deep persistent weakness has not been reactive for a few weeks.

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