Avalanche forecast

Jasper

Feb 29 – Mar 1, 2020Parks Canada
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Archived · expired 7 years ago

Avalanche danger

Sun
Mon
Alpine
3 · Considerable
Treeline
3 · Considerable
Below
2 · Moderate
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Highlights

Up to 20cm of new snow and increasing winds will elevate the avalanche hazard throughout the weekend. Conservative decision making related to terrain choices will be key to avoiding involvement in an avalanche over the upcoming few days.

Avalanche problems

  • Wind Slabs

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

    Triggering wind slab in shallow areas has the potential to initiate the deep persistent slab.

  • Storm Slabs

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

    Up to 20cm of new snow forecasted for region Friday night. Keep an eye on how reactive this snow is when traveling through terrain. Triggering storm slab in shallow areas has the potential to initiate the deep persistent slab.

  • Deep Persistent Slabs

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

    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 overnight Friday. This snow will come in with moderate to strong 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 redeposited at ridgetop with increasing winds, spread irregularly over the region on old wind slab in the alpine. 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

Due to the number of field observations

Regions covered