Avalanche forecast

Banff Yoho Kootenay

Feb 16 – 17, 2012Parks Canada
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Archived · expired 15 years ago

Avalanche danger

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

Small systems are lined up to hit the Rockies Thursday and Saturday. Winds will accompany the new snow and form soft slabs on the buried Valentine's surface hoar in alpine and tree-line lee features. Keep your head up for changing surface conditions

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible
    Size
    1–2
    While the storm snow is mainly unconsolidated from Lake Louise north, it is reported to be slabbing up in the Sunshine B/C. A skier-triggered sz 1.5 occurred near Quartz Ridge today. As the slabs stiffen on the surface hoar, expect them to be touchy.

  • Cornices

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Possible - Likely
    Size
    2–3
    Strong winds from earlier in the month have created large cornices on lee (mostly easterly) aspects. Several large cornice collapses have been observed over the past week. These cornices could be a big enough to trigger a deep slab.

Weather Forecast

Snowpack Summary

Avalanche Summary

Confidence

Forecast snowfall amounts are uncertain

Regions covered