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Avalanche Forecast

Archived

Mar 22nd, 2026–Mar 23rd, 2026

Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely.
Below Treeline
Below Threshold.
Alpine
Natural avalanches unlikely, human triggered possible.
Treeline
Natural avalanches unlikely, human triggered possible.
Below Treeline
Below Threshold.

Regions

Yukon, Tutshi, Wheaton, White Pass East, White Pass West.

Lingering wind slabs in the alpine may be possible to human trigger.

Avoid steep, rocky, and wind-affected areas where triggering slabs is more likely.

Confidence

Low

  • We are uncertain due to a limited number of field observations.

Avalanche Summary

No new avalanches were reported on Saturday.

However, observations in this region are very limited. If you head out into the backcountry, let us know what you're seeing by submitting a MIN report.

Snowpack Summary

Cornices are large and looming. Avoid traveling underneath them.

Recent south winds may have formed wind slabs on lee features.

20 to 40 cm of snow overlies heavily wind affected surfaces. Up to 60 cm of snow can be found in sheltered areas.

A persistent weak layer of facets or crust/facets can be found down 65 to 100 cm.

Facets or depth hoar exist at the base of the snowpack, especially in the inland areas that have a shallower snowpack.

Weather Summary

Sunday Night
Mostly clear skies. 20 km/h east ridgetop wind. Treeline temperature -11 °C.

Monday
Mix of sun and clouds. 10 km/h east ridgetop wind. Treeline temperature -14 °C.

Tuesday
Mix of sun and clouds. 20 km/h east ridgetop wind. Treeline temperature -14 °C.

Wednesday
Mostly cloudy. 40 km/h east ridgetop wind. Treeline temperature -15 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Avoid steep, rocky, and wind-affected areas where triggering slabs is more likely.
  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • Use ridges or ribs to avoid areas of wind-loaded snow.
  • Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.

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.