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Avalanche Forecast

Archived

Mar 21st, 2026–Mar 22nd, 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 unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely.

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. Use extra caution at higher elevations where there is no rain crust near the surface.

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.

Between Monday and Thursday, a widespread avalanche cycle occurred. The reported avalanches have been large to very large (as big as size 4). These avalanches have been a mix of slab and loose, dry and wet.

Snowpack Summary

Recent snowfall amounts throughout the region have been variable; 5-30 cm of new snow on Friday brings the totals to 25-60 cm of settling storm snow. Rain saturated the upper snowpack at and below treeline last week, with moist surface snow reaching as high as 2000 m in the alpine for some parts of the region. Now that temperatures are dropping, expect to find a new crust buried under Friday's snow everywhere but the high alpine.

A thick crust buried earlier in March can be found down 50 to 80 cm at treeline and below. The early February crust can be found down 100-160 cm. We are not currently concerned about these layers.

The remainder of the snowpack is well settled and bonded.

Weather Summary

Saturday Night
Partly cloudy. 1 to 3 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -8 °C.

Sunday
Mix of sun and clouds. 1 to 4 cm of snow. 40 km/h west ridgetop wind. Treeline temperature -9 °C.

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

Tuesday
Mix of sun and clouds. 3 to 5 cm of snow. 30 km/h southeast ridgetop wind. Treeline temperature -10 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Continue to make conservative terrain choices while the storm snow settles and stabilizes.
  • Be especially cautious as you transition into wind-affected terrain.
  • Be alert to conditions that change with aspect and elevation.
  • Avalanche activity is unlikely when a thick melt-freeze crust is present on the snow surface.

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.