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Avalanche Forecast

Archived

Apr 11th, 2026–Apr 12th, 2026

Alpine
Natural avalanches unlikely, human triggered possible.
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, human triggered possible.

Regions

Glacier.

Wet loose avalanches, even small ones, are good at grabbing skis and can push you into some undesirable obstacles or terrain traps.

Expect surface instabilities to persist tomorrow with warm temperatures and possible rain-showers at lower elevations.

Confidence

Moderate

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

Avalanche Summary

Small, solar triggered loose wet avalanches have been observed from steep, rocky features the past few days.

A widespread, natural avalanche cycle occurred up to size 4.0 on Mar 19-20 during the atmospheric river, filling the valley bottoms with huge debris piles in many locations. Check out pics from this exceptional avalanche cycle in the MIN Reports.

Snowpack Summary

Spring conditions exist throughout the park. We expect minimal overnight crust recovery again tonight, which means daytime heating or rain tomorrow will permeate deeper into the snowpack.

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 Pacific low brings unsettled weather this weekend. Expect mainly overcast skies and light snow or rain, depending on elevation.

Tonight Wet flurries, 2-5mm. Alpine low 0°C. Wind SW-10 Km/h. Freezing level(FZL) 2100m

Sun Wet flurries, 2-5mm. Alp High 2°C. Wind NW-10km/h. FZL 2300m

Mon Trace of snow. Alp High 0°C. Wind SW-20km/h. FZL 2000m

Tues Snow, 14cm. High -5°C. Wind SW-15 gusting 45km/h. FZL 1400m

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.