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Avalanche Forecast

Archived

Apr 6th, 2026–Apr 7th, 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.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Glacier.

Strong winds overnight may have gathered enough of the new snow on leeward slopes to form wind slabs.

These will be easily triggered on the widespread firm crust.

Confidence

Moderate

  • We are confident about new snow amounts, but uncertain about whether slabs will form.

Avalanche Summary

Sunshine and warm temperatures triggered a small loose wet avalanche cycle from steep terrain over the weekend.

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

Overnight flurries delivered a dusting of snow over a widespread crust. Very high elevation north facing slopes may still hold dry snow.

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

Flurries Monday night into Tuesday & cooler temps, gradual rewarming through the week with freezing levels (FZL) reaching 2600m by the weekend.

Tonight Isolated flurries - 5cm. Low -9°C. Winds W 25 gusting 95 Km/h. Freezing level 800m

Tues Flurries, 5cm. High -7°C. Wind W 20 gusting to 65km/h. FZL 1200m

Wed Sun & cloud no precip. High -4°C. Wind NW light. FZL 1700m

Thur Sun & cloud no precip. High 1°C. FZL 2000m

Terrain and Travel Advice

  • Avoid lee and cross-loaded slopes at alpine and treeline elevations.
  • Avoid travelling on slopes below cornices.

Problems

Wind Slabs

Wind Slab avalanches are the release of a cohesive layer of snow (a slab) formed by the wind. Wind typically transports snow from the upwind sides of terrain features and deposits snow on the downwind side. Wind slabs are often smooth and rounded and sometimes sound hollow, and can range from soft to hard. Wind 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.