Avalanche forecast

Banff Yoho Kootenay

Feb 25 – 26, 2013Parks Canada
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Archived · expired 14 years ago

Avalanche danger

Mon
Tue
Alpine
3 · Considerable
Treeline
2 · Moderate
Below
1 · Low
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Highlights

Big wind from the south and new snow is creating fresh wind slabs on North and North East aspects. Use caution on these aspects at high elevations.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–3
    Moderate to strong South wind today is building slabs in lee areas (yes...again). Slab thickness and sensitivity will be variable depending on the local area.

Weather Forecast

Moderate to strong westerly wind with accompanying precipitation (up to 15cm) will hold the danger rating at considerable in the alpine. As the wind and precip subside (Tues/Weds) the new snow will have a chance to settle and the danger rating will subsequently drop.

Snowpack Summary

Fresh wind slabs overlie a variety of other hard and soft wind slabs from the last week or so. In a study plot today, snowpack tests produced no results and showed a relatively well bonded mid-snowpack. Also observed in the plot were remnants of the Jan 6th surface hoar and a decomposing Nov crust.

Avalanche Summary

No avalanches observed or reported.

Confidence

Timing, track, or intensity of incoming weather system is uncertain on Monday

Regions covered