Avalanche forecast

Jasper

Apr 18 – 19, 2012Parks Canada
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Archived · expired 14 years ago

Avalanche danger

Fri
Sat
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
2 · Moderate

Highlights

A change from the recent cloudy conditions to sunny skies may wake up snowpack weaknesses that have been dormant as of late. More caution is needed on sun exposed slopes at all elevations.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–3
    Windslabs are present below corniced ridgelines. These slabs have not been reactive in the past week, however, warm temps and solar exposure may wake them up.
  • Loose Wet

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–2
    Warmer temperatures and sunny skies will increase the likelihood these avalanches. These slides may trigger slab avalanches deeper in the snowpack, especially around convexities near treeline.
  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    2–4
    This layer is now buried by a settled upper snowpack. Triggering of this layer is still possible especially from a thin spot.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Timing or intensity of solar radiation is uncertain on Thursday

Regions covered