Avalanche forecast

Jasper

Feb 1 – 2, 2019Parks Canada
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Archived · expired 8 years ago

Avalanche danger

Sat
Sun
Alpine
3 · Considerable
Treeline
3 · Considerable
Below
3 · Considerable
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Highlights

Highway 93N, Icefields Parkway will be closed at 10:00, Friday, February 1st from Athabasca Falls to Sask River Crossing. Expected opening: Saturday at 18:00. (low confidence)Check Alberta511 for updated

Avalanche problems

  • Storm Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    1–2
    Avoid avalanche terrain until the storm subsides and the snowpack can settle.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1.5–3.5
    New snow may overload the deep persistent weakness. Avoid avalanche terrain.

Weather Forecast

Periods of snow, at times heavy. Accumulation in Icefields: 14cm overnight Thursday; 20cm on Friday; 8 -10cm Saturday. Temps drop over the day Saturday with an overnight low of -28. Valley bottom freezing levels. Mostly light SW winds, gusting at ridge tops. A detailed mountain weather forecast is available from Avalanche Canada.

Snowpack Summary

Forecasted storm snow over this weekend (potentially up to 50cm), will change everything in the snowpack. The existing upper snow pack continues to settle over surface hoar, down 5-10cm deep. Solar aspects have buried surface sun/temperature crusts at TL and below. Below that, a strong mid-pack sits over a deep persistent weakness.

Avalanche Summary

No new avalanches have been observed or reported. Help forecast - share observations HERE, on the Mountain Information Network!

Confidence

Intensity of incoming weather systems is uncertain

Regions covered