Avalanche forecast

Jasper

Mar 29, 2012Parks Canada
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Archived · expired 15 years ago

Avalanche danger

Fri
Sat
Alpine
2 · Moderate
Treeline
1 · Low
Below
1 · Low
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Highlights

Up to 10cm may arrive tonight into Thursday not enough to change the current danger rating. However, if the sun pokes out, destabilization can occur quickly especially on solar aspects.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2
    Steady moderate Southwest winds continue to build windslabs and cornices on Northerly aspects. Natural activity is reduced with this problem but be vigilant with as shallow spots or large cornice failures being possible triggers.

  • Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    2–4
    The buried surface hoar layer 70-120cm down remains a concern in areas that have not avalanched. Whumphing is still being observed on isolated North shaded glades below treeline. Be cautious of this layer as triggering it would be high consequence.

  • Loose Wet

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–3
    Cloud cover today reduced daytime heating but anytime the sun pokes out, loose wet avalanche activity will increase. Expect this activity originating from steep S or W aspect rock bluffs or gullies starting mid afternoon.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Timing or intensity of solar radiation is uncertain

Regions covered