Avalanche forecast

Jasper

Mar 4 – 5, 2012Parks Canada
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Archived · expired 15 years ago

Avalanche danger

Sun
Mon
Alpine
3 · Considerable
Treeline
3 · Considerable
Below
3 · Considerable
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Highlights

Potentially 35cm of snow or 20mm+ of water equivalency by Monday. Currently, snowing and strong to extreme winds through Icefields developing windslabs at all elevations. Natural activity to increase with overloading of surface hoar layer.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    2–3
    Winds gusting extreme through the Icefields from variable directions alpine - below treeline. Snow transport occurring creating various thickness windslabs over weak surface hoar layer. Several windpressed gullies avalanched naturally up to size 2.

  • Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    2–3
    Open slopes on Northeast to South aspects have persistent slabs that are sitting on the Valentine's Day surface hoar 20-60cm down. 35cm of snow may arrive Saturday-Monday potentially overloading slopes increasing natural activity.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

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

Regions covered