Avalanche forecast

Jasper

Feb 28 – 29, 2020Parks Canada
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Archived · expired 7 years ago

Avalanche danger

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

Caution as the snowpack receives an additional 20+ cm of snow over the next 3 days. Possibly rain at lower elevations 1700m and below. Maligne Lake back country opens up February 29th

Avalanche problems

  • Wind Slabs

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

    Well defined wind effect and scouring in exposed areas at TL and the alpine. Triggering has the potential to initiate the deep persistent slab.

  • Deep Persistent Slabs

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

    Skier triggering could occur in shallow snowpack areas or from large load. The consequences of triggering would be severe!  Caution traveling, skiing and climbing in Run out zones as avalanche have the potential to run full path

Weather Forecast

Upwards of 20cm is expected in the Columbia ice fields area over the next 3 days. This snow will come in with Gusty winds up to 60km/h from the WSW.  Temperatures steadily dropping to -15 by Monday morning.

Find the Alberta Rockies weather synopsis here: Mountain Weather Forecast

Snowpack Summary

Daily, trace amounts of new snow, spread irregularly over the region on old hard slab in the alpine. A thin rain crust present on all aspects at treeline; 1700m and below. The southern forecast region has a supportive mid-pack. Less supportive and poor bridging over a pronounced basal weaknesses in the north; Whistlers/Portal and soon, Maligne area

Avalanche Summary

No new avalanches were observed or reported.

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Confidence

Intensity of incoming weather systems is uncertain

Regions covered