Avalanche forecast

Jasper

Mar 26 – 27, 2021
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Avalanche danger

Sun
Mon
Alpine
2 · Moderate
Treeline
1 · Low
Below
1 · Low
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Highlights

Conditions are changing!!!Strong winds, uncertain amounts of precipitation and rising freezing levels should be taken into consideration when heading out.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–2.5

    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

    Enough new snow has fallen over the past few days to produce Loose Dry avalanches in steep terrain. Use caution in exposed or confined features where small avalanches can have high consequences.

Weather Forecast

Saturday: Cloudy with scattered flurries. Accumulation: 4 cm. Alpine temperature: High -4 °C. Ridge wind southwest: 25 km/h gusting to 65 km/h. Freezing level: 1800 metres. Sunday: Snow. Accumulation: 19 cm. Alpine temperature: Low -6 °C, High -4 °C. Ridge wind southwest: 20 km/h gusting to 55 km/h. Freezing level: 1600 metres.

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 changeable 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

Two large slides occurred on Thursday night in Marmot backcountry, yet a good reminder to beware of low probability, high consequence scenario. Few loose dry avalanches have been observed in the last couple days, mostly off steep alpine terrain and large enough to bury or injure a skier.

Confidence

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

Regions covered