Avalanche forecast

Sea To Sky

Jan 13 – 14, 2012Avalanche Canada
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Archived · expired 15 years ago

Avalanche danger

Sun
Mon
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
1 · Low
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Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–4
    Watch for wind slabs behind ridges and terrain breaks. Be alert for wind slabs in atypical places as the wind shifts direction over the next few days.

  • Cornices

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    1–4
    Several cornice collapses have been noted in this region recently due to warm alpine temperatures.

Confidence

Fair - Intensity of incoming weather is uncertain

Weather Forecast

Saturday: Light snow, perhaps 10cm, easing by afternoon. Cool temperatures. Moderate south-west winds. Sunday: A cold day with flurries possible. Northerly winds.Monday: Cold in the valleys with sunny skies and warmer temperatures in the alpine.

Avalanche Summary

No new avalanches have been reported.

Snowpack Summary

At treeline, snowpack depths are around 250cm.A hard surface crust exists in many places, even up into the alpine. Surface hoar is growing on this surface. The upper snowpack comprises a series of storm snow layers, which have generally bonded well to each other and are now gaining strength.Recent winds have led to wind slab development occurring on north and east aspects, but also some on south aspects. Concern for lower snowpack layers has diminished and remains only in shallow snowpack areas. Facets associated with a crust from mid-December and/or sugary facets at the base of the snowpack may still be a concern in areas you know to be unusually shallow, or where you can see rocks poking up out of the snow.

Regions covered