Avalanche forecast

Sea To Sky

Feb 15 – 16, 2012Avalanche Canada
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Archived · expired 15 years ago

Avalanche danger

Fri
Sat
Alpine
2 · Moderate
Treeline
1 · Low
Below
1 · Low
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Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–3
    Fresh snow and strong winds will form new wind slabs on lee features in the alpine and at treeline.

Confidence

Fair - Intensity of incoming weather is uncertain

Weather Forecast

About 10cm of snow is expected for Thursday with moderate accumulations forecast for Friday afternoon and into Friday night.Trace amounts are expected on Saturday.Winds should be strong and southwesterly on Thursday and Friday switching to light and westerly by Saturday. Daytime freezing levels should stay between 1000 and 1300m for the forecast period.

Avalanche Summary

No new avalanches have been reported in this region recently.

Snowpack Summary

In general the snowpack is now well bonded. Generally light snowfall has buried an assortment of old snow surfaces including crusts, old wind slabs, surface hoar and surface facets. This light snowfall has been redistributed by moderate alpine winds and has formed small wind slabs on lee features. The crusts have formed on all aspects at lower elevations and on steep solar aspects higher up. Friday's moist snowfall may have destroyed this surface hoar in many places. Surface facets have grown particularly on northern aspects where colder temperatures have persisted and facets may also exist in combination with crusts. The average treeline snowpack depth at is around 240cm.

Regions covered