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Avalanche Forecast

Archived

Mar 25th, 2026–Mar 26th, 2026

Alpine
Natural avalanches possible, human triggered probable.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Natural avalanches unlikely, human triggered possible.
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 Columbia, South Columbia, Clemina, Esplanade, Jordan, North Monashee, North Selkirk, West Purcell, Badshot-Battle, Central Selkirk, Goat, Gold, Whatshan.

Give storm slabs time to bond and keep your eye on cornices.

Route selection should take both of these hazards into consideration.

Confidence

Moderate

  • We have a good understanding of the snowpack structure and confidence in the weather forecast.

Avalanche Summary

On Tuesday a notable size 3 natural storm slab avalanche occurred. It released in the alpine on a north aspect and travelled to a low elevation.

On Sunday and Monday, several small (size 1) slab avalanches were human and naturally triggered in wind-loaded alpine terrain. A few large (up to size 3) slabs were triggered by cornice failures, both natural and explosive-controlled.

Snowpack Summary

20 to 40 cm of recent storm snow has been redistributed by south and west wind, forming deeper deposits on leeward features. A sun crust exists just below this storm snow.

The crust formed during the atmospheric river event is down 40 to 70 cm and exists up to at least 2100 m. This crust is 10 to 20 cm thick with moist snow below it.

Weak layers from February can be found down 150 cm and deeper. These layers remain a concern at high elevations where the crust from the atmospheric river might not exist.

Weather Summary

Wednesday Night
Mostly cloudy. 2 to 10 cm of snow. 30 km/h west ridgetop wind. Treeline temperature -8 °C.

Thursday
Mostly cloudy. 2 to 4 cm of snow. 30 km/h west ridgetop wind. Treeline temperature -10 °C.

Friday
Mix of sun and clouds. 1 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -7 °C.

Saturday
Mix of sun and clouds. 1 to 2 cm of snow. 40 km/h southwest ridgetop wind. Treeline temperature -4 °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.
  • Avoid freshly wind-loaded features, especially near ridge crests, rollovers, and in steep terrain.
  • Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.
  • Loose avalanches may start small, but they can grow and push you into dangerous terrain.

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.