Avalanche forecast

Jasper

Feb 21 – 22, 2012Parks Canada
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Archived · expired 15 years ago

Avalanche danger

Tue
Wed
Alpine
1 · Low
Treeline
1 · Low
Below
1 · Low
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Highlights

Sun crusts can be expected on solar aspects of 20 degrees or more. They are still thin and breakable in many locations.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    1–2
    10-20cm slabs can be expected in steep isolated features such as wind loaded ridge top terrain. Solar warming may trigger these slides from rocky terrain.

  • Loose Dry

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely
    Size
    1–2
    A surface hoar layer is buried 2-10 cm's. Flurries and light-moderate winds are forecast now until Wednesday which will incrementally bury it deeper. The danger rating will increase once critical load achieved. Monitor this situation as it develops.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely
    Size
    2–4
    Conditions are generally stable but be cognisant of slopes threatened by large triggers such as overhead cornices on steep unsupported alpine features.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

The weather pattern is stable on Wednesday

Regions covered