Avalanche forecast

Jasper

Jan 6 – 7, 2012Parks Canada
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Archived · expired 15 years ago

Avalanche danger

Fri
Sat
Alpine
4 · High
Treeline
3 · Considerable
Below
2 · Moderate
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Highlights

Up to 45 cm has fallen since Jan 1st with 35cm since yesterday. Winds were strong accompanying this storm. Give the new snow a couple of days to settle. Maligne lk rd and Icefields parkway are still closed and further avalanche control to occur.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–3
    Windslabs present in all sheltered lee features, evaluate local wind effect.

  • Storm Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    2–3
    45cm since Jan 1st with 35cm since yesterday. Initially rain below 1500 m. Moderate SW winds at ridgetops promoting slab development.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    2–4
    Cornices are large and precarious right now from winds and warm temperatures. Midpack strength is bridging this layer but the potential still exists if triggered, consequences would be severe.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Wind effect is extremely variable

Regions covered