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Avalanche Forecast

Archived

Jan 27th, 2026–Jan 28th, 2026

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

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

Low danger and generally stable snow persist, with isolated shallow spots still capable of producing skier-triggered avalanches in extreme, wind-affected terrain.

Confidence

High

  • We are uncertain whether the wind will be enough to form new wind slabs.

Avalanche Summary

A MIN reported a small windslab near Bow Peak today. It is unclear if this was today, or from a previous day. Otherwise, no new avalanches have been observed or reported on Tuesday.

Snowpack Summary

Extensive wind effect exists in the alpine, with some surface faceting helping to break down crusts and create softer skiing. In sheltered areas at treeline and below, widespread surface hoar was buried by a few centimetres on Saturday and is now the Jan 24 layer. A deeper surface hoar layer lies 50–60 cm down, but there have been no recent avalanches. Basal crust and/or facets exist in thin snowpack areas, but overall, this year's deeper snowpack is stronger than usual.

Weather Summary

A slight warming trend continues, but temperatures remain cool (-4 valley, -10 ridge). Cloud cover is expected Wednesday, with a couple cm's of new snow late in the day, continuing gradually to total accumulations of up to 8 cm by Friday afternoon. West winds remain moderate to strong.

Terrain and Travel Advice

  • Avoid shallow, rocky areas where the snowpack transitions from thick to thin.

Problems

Deep Persistent Slabs

Deep Persistent Slab avalanches are the release of a thick cohesive layer of hard snow (a slab), when the bond breaks between the slab and an underlying persistent weak layer deep in the snowpack. The most common persistent weak layers involved in deep, persistent slabs are depth hoar or facets surrounding a deeply buried crust. Deep Persistent Slabs are typically hard to trigger, are very destructive and dangerous due to the large mass of snow involved, and can persist for months once developed. They are often triggered from areas where the snow is shallow and weak, and are particularly difficult to forecast for and manage.