Avalanche forecast

Jasper

Mar 12 – 14, 2012Parks Canada
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Archived · expired 15 years ago

Avalanche danger

Wed
Thu
Alpine
4 · High
Treeline
4 · High
Below
3 · Considerable
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Highlights

A storm may bring 15-20cm or more Monday night. Winds could be strong to extreme in the alpine. This combination will be enough to overload an already weak buried surface hoar layer thus increasing the danger rating. Stay tuned.

Avalanche problems

  • Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    2–4
    Natural avalanche activity has declined but the buried surface hoar layer 50-80cm down remains touchy. Cracking and whumphing still occurring. Extra vigilance is required for slopes that did not slide with last Monday's 50cm storm.

  • Storm Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    2–3
    35cm of new snow arrived in the past 4 days. Another 20cm or more is expected. The snow will cumulate into a storm slab adding load to the buried surface hoar layer. Initiating a small slide has the potential to step down to this weakness.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Timing, track, or intensity of incoming weather system is uncertain on Tuesday

Regions covered