Avalanche forecast

Jasper

Jan 8 – 9, 2018Parks Canada
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Archived · expired 9 years ago

Avalanche danger

Tue
Wed
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
1 · Low
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Highlights

Incoming new snow will improve the skiing somewhat, hopefully without overloading the weak interfaces left in the wake of the December drought.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–3
    Several layers of wind slab exist from multiple wind events - reactivity may vary from site to site.

  • Loose Dry

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2
    Main concern is for weak, unconsolidated snow on steep rocky features as well as areas in the alpine where a small sluff can build mass.

Weather Forecast

Returning to a more normal thermal structure, milder air in the valleys and colder air aloft. A Westerly flow aloft will bring a series of Pacific weather systems through our area for the next few days.Monday: Flurries. Accumulation: 5-10 cm. Alpine temperature: Low -8 °C, High -4 °C. Ridge wind Light SW. Freezing level: 1500 metres.

Snowpack Summary

Exposed areas have pockets of wind slab covering variable drought interfaces - facets, surface hoar, sun and wind crusts. The upper snowpack is facetted and sugary in sheltered areas. The mid snowpack is generally supportive. Two buried crusts, one mid snowpack and one near the base, have the potential to become reactive with future loading.

Avalanche Summary

No new avalanches observed or reported.

Confidence

Forecast snowfall amounts are uncertain

Regions covered