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Avalanche Forecast

Archived

Nov 24th, 2025–Nov 25th, 2025

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.

Regions

Banff Yoho Kootenay, Little Yoho, Banff, East Side 93N, Kootenay, Lake Louise, LLSA, Sunshine, West Side 93N, Field.

The new snow appears to be bonding well, but exercise caution as you enter new terrain, as the storm has just recently finished.

Thanks to all the MIN posters for the information - keep it coming!

Confidence

Moderate

Avalanche Summary

Minimal results with avalanche control at local ski hills today showed the new snow is generally lacking slab properties.

Snowpack Summary

25-60 cms of new snow over the last 3 days is settling with cold temperatures and light winds. This may be sitting on a variety of surfaces (old windslab / sun crust / surface hoar) but appears to be bonding for now. The lower snowpack is generally well-settled with no significant weak layers; however, a rain crust does exist below ~2300 m. Overall, early-season travel conditions are good at higher elevations, with treeline snow depths of 70–100 cm.

Weather Summary

A ridge is building over the region on Tuesday bringing clear skies, cold air and light winds. Winds will increase overnight Tuesday and bring some cloud cover for Wednesday. On Thursday, we will see a few cms of new snow as a small system comes in from the SW.

Click here for Environment Canada links to weather tables for the region.

Terrain and Travel Advice

  • Be careful with sluffing in steep terrain, especially above cliffs and terrain traps.
  • Avoid freshly wind-loaded features, especially near ridge crests, rollovers, and in steep terrain.

Problems

Loose Dry

Loose Dry avalanches are the release of dry unconsolidated snow and typically occur within layers of soft snow near the surface of the snowpack. These avalanches start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-dry avalanches include point-release avalanches or sluffs.

Storm Slabs

Storm Slab avalanches are the release of a cohesive layer (a slab) of new snow that breaks within new snow or on the old snow surface. Storm-slabs typically last between a few hours and few days (following snowfall). Storm-slabs that form over a persistent weak layer (surface hoar, depth hoar, or near-surface facets) may be termed Persistent Slabs or may develop into Persistent Slabs.