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Avalanche Forecast

Archived

Apr 12th, 2026–Apr 13th, 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.
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

Glacier.

Wet loose avalanches remain possible, even small ones can push you into undesirable obstacles or terrain traps.

Cornices are weak, limit you overhead hazard to them and give ridge crests a wide berth.

Confidence

Moderate

  • We are uncertain due to the track and intensity of the incoming weather system.

Avalanche Summary

Several wet loose avalanches up to size 2.5 and a size 3 glide slab release have been observed through the highway corridor over the weekend. Neighboring operations have reported natural cornice failures.

Snowpack Summary

Spring conditions exist throughout the park. Surface conditions vary from crust to moist or wet snow depending on time of day, aspect and elevation.

A thick rain crust from the March atmospheric river sits 20-50cm below the surface.

Below treeline the surface varies from isothermal sticky snow to refrozen tree bombs and huge debris fields from the massive avalanche cycle in March.

Weather Summary

A cooling trend begins on Monday night with lowering freezing levels (FZL) and some new snow arriving on Tuesday.

Tonight Cloudy no precip. Alpine low -1°C. Wind W-10 Km/h. (FZL) 1900m.

Mon Flurries up to 4cm. Alp High -1°C. Wind SW-20-40km/h. FZL 1900m.

Tues Snow, 13cm. High -5°C. Wind SW-15 gusting 55km/h. FZL 1300m.

Wed Isolated flurries. High -7°C. Wind W-25km/h. FZL 1100m.

Terrain and Travel Advice

  • A moist or wet snow surface, pinwheeling, and natural avalanches are all indicators of a weakening snowpack.
  • Avoid travelling on slopes below cornices.

Problems

Loose Wet

Loose Wet avalanches are the release of wet unconsolidated snow or slush. These avalanches typically occur within layers of wet snow near the surface of the snowpack, but they may quickly gouge into lower snowpack layers. Like Loose Dry Avalanches, they start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-wet avalanches include point-release avalanches or sluffs. Loose Wet avalanches can trigger slab avalanches that break into deeper snow layers.

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.