Avalanche forecast

Jasper

Mar 22 – 23, 2022
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Avalanche danger

Thu
Fri
Alpine
2 · Moderate
Treeline
2 · Moderate
Below
2 · Moderate
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Highlights

Watch out for the poor overnight freeze Tuesday evening. Snow and strong winds are expected for Wednesday evening. If the storm comes in early or you are out late the hazard could be greater than what is reflected in the bulletin.

Avalanche problems

  • Wind Slabs

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

    Increasing winds and snow will build new wind slabs in the alpine and possibly down into exposed tree line.

  • Cornices

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    1–3

    Be mindful of what is above you during periods of warm temperatures and poor overnight freezes.

  • Loose Wet

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

    Expect small wet loose avalanches in steep terrain with increasing temperatures.

Weather Forecast

Wednesday

Flurries.

Accumulation: 6 cm.

Alpine temperature: High -1 C.

Ridge wind southwest: 20 km/h gusting to 60 km/h.

Freezing level: 2000 metres.

Thursday

A mix of sun and cloud.

Precipitation: Nil.

Alpine temperature: Low -11 C, High -7 C.

Ridge wind west: 10-30 km/h.

Freezing level at valley bottom.

Snowpack Summary

There is a 1-5cm breakable temperature crust on all aspects below 1700m. Also a sun crust on solar aspects to at least 2100m. The midpack is mostly solid but there could be a Feb 13 interface down 20-50cm as a suncrust on solar aspects and a facet layer on polar aspects.

Avalanche Summary

No new recent avalanches have been observed around Jasper

Confidence

Timing of incoming weather systems is uncertain on Wednesday

Regions covered