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Avalanche Forecast

Archived

Apr 24th, 2026–Apr 25th, 2026

Alpine
Spring Conditions
Treeline
Spring Conditions
Below Treeline
Spring Conditions
Alpine
Spring Conditions
Treeline
Spring Conditions
Below Treeline
Spring Conditions
Alpine
Spring Conditions
Treeline
Spring Conditions
Below Treeline
Spring Conditions

Regions

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

It's going to be all freeze and no melt with light snow and cold temperatures over the next few days. Watch locally in the high alpine for wind slabs formed by north winds in isolated, but possibly atypical places.

Confidence

Avalanche Summary

No new avalanches were observed or reported on Friday.

Snowpack Summary

5-15 cm of dry snow fell on Wed night and sits over melt-freeze crusts in most locations, except north-facing slopes above 2600 m. The potential exists for some isolated windslabs in strange places from the north winds (reverse loading). On solar aspects, a crust extends to the ridgetop with 5-10 cm of drifted snow on top. The cooling trend will produce a widespread surface crust that will lock in the snowpack everywhere except on high north-facing terrain.

Weather Summary

A cool airmass remains over our area for the weekend. A warmup begins early next week.

For Saturday and Sunday, expect isolated flurries with accumulations of just a few centimetres. Locally deeper amounts are possible due to spring convection.

Treeline temperatures will remain cool (-5 to -10), and the wind will be out of the north.

Terrain and Travel Advice

  • Periods of low danger may be a good time to increase your exposure.
  • Carefully evaluate steep lines for wind slabs.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind 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.