Avalanche forecast

Jasper

Mar 27 – 28, 2021
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Avalanche danger

Mon
Tue
Alpine
3 · Considerable
Treeline
3 · Considerable
Below
2 · Moderate
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Highlights

The Icefields Parkway is anticipated to be closed Sunday afternoon-evening in the Parkers Ridge Area. Check 511 Alberta.

Be aware that significant snowfall, winds and warm temperatures may wake up deep buried weak layers resulting in large avalanches.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Likely
    Size
    1–2

    Recently formed wind slabs can be found in lee features near ridge crests, and in cross-loaded gullies.

  • Loose Dry

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–1.5

    30 cm of snow is forecasted in the next 24h. Use caution in exposed or confined features where small avalanches can have high consequences.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    1.5–3

    Forecasted new snowfall, warm temperatures and moderate to strong winds may be the triggers that wake up this layer.

Weather Forecast

30cm of snow is forecasted for the next 24h with moderate to strong S-SW winds, and freezing levels at 1500m. A mix of sun and cloud, cooler temperatures with freezing levels at valley bottom and light to moderate ridge top winds are expected on Monday.

Snowpack Summary

Up to 30cm of new snow with convective flurries and moderate W-SW winds have redistributed the low density, new snow over previous surfaces such as hard windslab and variable crusts at TL/ALP elevations. The snow pack varies throughout the region from strong supportive snow in deeper areas to weak facetted snow in the shallow areas.

Avalanche Summary

1 size 2 slab avalanche was observed from steep alpine terrain on a NE asp.

Confidence

Intensity of incoming weather systems is uncertain

Regions covered