Avalanche forecast

Cariboos

Mar 31 – Apr 1, 2012Avalanche Canada
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Avalanche danger

Mon
Tue
Alpine
3 · Considerable
Treeline
2 · Moderate
Below
2 · Moderate
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Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    1–5
    Forecast new snow and moderate gusty southwest winds may continue to build touchy windslabs on northeast aspects in the alpine and at treeline.

  • Storm Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    3–7
    Recent storm snow may not bond well to a buried sun crust on southerly aspects.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    4–8
    Persistent weaknesses are buried about 150-200 cm below the surface. Avalanche activity on this interface has become less frequent, but large triggers like cornice fall may release a large avalanche.

Confidence

Fair - Intensity of incoming weather is uncertain on Tuesday

Weather Forecast

Sunday: Light precipitation is expected throughout the day. Freezing levels 800-1000m and winds light to moderate from the west. Monday: Continued light precipitation. Freezing levels rising to 1000-1500m. Winds moderate from the southwest. Tuesday: Moderate precipitation expected as pacific frontal system moves inland. Freezing levels 1000-1500m.

Avalanche Summary

Reports of human triggered avalanches to size 1.5. These are isolated to the newly fallen snow

Snowpack Summary

New snow has formed windslabs in the alpine, and added a new load to the very large cornices in the region. There is moist snow on all aspects below 1600 metres. Operators in the Cariboo are not talking about the mid-february deeply buried weak layer. There have not been any avalanches released on the deep layer for some time in this region.

Regions covered