Avalanche forecast

Jasper

Feb 21 – 22, 2015Parks Canada
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Archived · expired 12 years ago

Avalanche danger

Sat
Sun
Alpine
3 · Considerable
Treeline
2 · Moderate
Below
1 · Low
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Highlights

Up to 5cm of snow overnight will freshen things up. Caution is required in shallow areas in the alpine to not wake up the weak layers at the base of the snowpack.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2
    Caution in shallow and unsupported areas where wind slab has formed.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    2–4
    Cornice failures or skier travel in shallow snowpack areas are likely ways to trigger this deep weakness in the snowpack.

Weather Forecast

Flurries tonight and into Saturday morning with accumulations to 5cm.  Could be rain and snow as temps are hovering around zero in valley bottoms. Clearing trend and cooler temps for Sunday and beyond.

Snowpack Summary

The Feb 13th rain crust lies underneath a melt-freeze crust up to 2000m elevation. The melt-freeze crust goes up to 2200m. A mixture of rounded and facetted layers are sandwiched between these upper layers and the weak depth hoar/ facets prevalent in the lower snowpack down to ground.

Avalanche Summary

No new avalanches were observed or reported today.

Confidence

Timing of incoming weather systems is uncertain on Saturday

Regions covered