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Avalanche Forecast

Archived

Apr 15th, 2026–Apr 16th, 2026

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

We have returned to winter with cooler temperatures and snow accumulation at valley bottom.

Expect the upslope weather pattern to deposit more snow on the Easterly regions.

Confidence

Moderate

  • We are uncertain about forecast precipitation amounts.

Snowpack Summary

Up to 30cm of recent storm snow over the last 48hours overlies crusts up ~2300m and dry snow at upper elevations. Aging wind slabs and fragile cornices may be found at ridge top.

Weather Summary

Wednesday night: Cloudy with scattered flurries. Accumulation: 5 cm. Alpine temperature: Low -15 °C. Ridge wind northeast: 20 km/h gusting to 45 km/h.

Thursday: Cloudy with sunny periods. Accumulation: 5-15 cm. Greater amounts to the East. Alpine temperature: High -6 °C. Ridge wind northwest: 15-35 km/h.

Friday: A mix of sun and cloud. Alpine temperature: Low -10 °C, High -6 °C. Ridge wind west: 15-30 km/h.

Terrain and Travel Advice

  • Cornices often break further back than expected; give them a wide berth when traveling on ridgetops.
  • Be aware of the potential for loose avalanches in steep terrain where snow hasn't formed a slab.

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.