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Avalanche Forecast

Archived

Mar 22nd, 2026–Mar 23rd, 2026

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

Regions

North Rockies, East Kakwa, Kakwa, McGregor, Pine Pass, Renshaw, Robson, Tumbler.

The recent storm snow may still be reactive to human triggering, especially in wind-loaded terrain at higher elevations.

Confidence

Low

  • We are uncertain due to a limited number of field observations.
  • We are uncertain about how quickly the snowpack will recover and gain strength.

Avalanche Summary

On Friday, this MIN report includes observations of recent wind slab avalanches on north through east aspects around treeline.

If you are heading into the backcountry, please share your observations by posting a MIN.

Snowpack Summary

Approximately 10 to 30 cm of dry, low-density snow overlies a thin crust in most areas at elevations of 2000 m and below. Below this crust, moist snow may persist, particularly at lower elevations.

A thicker crust buried earlier in March is present 50 to 80 cm below the surface at treeline and below. The early February crust is found at depths of 100 to 160 cm. These deeper layers are not currently a concern.

The remainder of the snowpack is generally well settled and bonded.

Weather Summary

Sunday Night
Partly cloudy. 1 to 3 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -9 °C.

Monday
Mostly cloudy. 3 to 5 cm of snow. 40 km/h west ridgetop wind. Treeline temperature -9 °C.

Tuesday
Mostly cloudy. 3 to 5 cm of snow. 30 km/h southeast ridgetop wind. Treeline temperature -11 °C.

Wednesday
Mostly cloudy. 10 to 20 cm of snow. 50 km/h south ridgetop wind. Treeline temperature -11 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be especially cautious as you transition into wind-affected terrain.
  • Closely monitor how the new snow is bonding to the crust.
  • Avalanche activity is unlikely when a thick melt-freeze crust is present on the snow surface.
  • Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.

Problems

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.

Cornices

Cornice Fall is the release of an overhanging mass of snow that forms as the wind moves snow over a sharp terrain feature, such as a ridge, and deposits snow on the downwind (leeward) side. Cornices range in size from small wind drifts of soft snow to large overhangs of hard snow that are 30 feet (10 meters) or taller. They can break off the terrain suddenly and pull back onto the ridge top and catch people by surprise even on the flat ground above the slope. Even small cornices can have enough mass to be destructive and deadly. Cornice Fall can entrain loose surface snow or trigger slab avalanches.