Avalanche forecast

Banff Yoho Kootenay

Nov 19 – 20, 2025Avalanche Canada
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Archived · expired 10 months ago

Avalanche danger

Fri
Sat
Alpine
1 · Low
Treeline
1 · Low
Below
Early season
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Highlights

Convective snowfall on Tuesday has deposited variable snow across the region from a few cms in most areas up to 15cm. Generally light winds and warm temps have settled most recent instabilities but concern for small windslabs in steep alpine terrain still exists.

Avalanche problems

  • Wind Slabs

    • Alpine
    • Treeline
    • Below treeline
    Likelihood
    Unlikely
    Size
    1–1.5

    Small windslabs may exist in steep alpine terrain but have been less reactive lately due to warm temps and calm winds

Confidence

Moderate

Avalanche Summary

No new avalanches observed or reported on Tuesday

Snowpack Summary

Limited early-season observations indicate a generally well-settled Rockies snowpack with no significant weak layers. Last week's wet snow and rain left a rain crust (Nov 13) to 2300 m. In the short term, this adds stability to the snowpack and with 5-10 cm of dry snow on top, only isolated windslabs have been reported along with good early-season travel conditions. Treeline snow depths range from 40-70 cm.

Weather Summary

A small system is passing through the region Tuesday night and is bringing variable snow amounts from 1-15 cm with light winds. Wednesday and Thursday will be sunny and calm with winds picking up throughout the day Thursday. Friday will bring strong to extreme SW winds and the next pulse of snow.

Terrain and Travel Advice

  • Wind slabs are isolated, but may remain reactive.

Regions covered