Avalanche forecast

Banff Yoho Kootenay

Feb 20 – 21, 2015Parks Canada
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Archived · expired 12 years ago

Avalanche danger

Fri
Sat
Alpine
3 · Considerable
Treeline
2 · Moderate
Below
1 · Low
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Highlights

There are still concerns in wind-loaded areas and thin spots. There is a lot of variability with respect to aspect and elevation right now, so take some time to assess the snow where you are.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely - Possible
    Size
    1–2
    Be cautious near ridge-crests and in lee areas.

  • Deep Persistent Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    2–3
    The base of the snowpack remains weak due to the presence of basal depth hoar and facets. Natural activity is tapering off, however human triggering is still likely on this layer.

Weather Forecast

Moderate temperatures with light snow is forecast for Friday. On Saturday, winds are forecast to switch to the North or Northeast giving us a short-lived bast of arctic air. Temps may dip to -20.

Snowpack Summary

Some wind effect in open areas above tree line. Temperature crust present below 1800m. 60-70cm of well settled snow from recent storms and warm temperatures sits over weak facets and depth hoar at the bottom of the snowpack.

Avalanche Summary

No new avalanches were observed or reported today.

Confidence

Regions covered