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Avalanche Forecast

Archived

Mar 11th, 2026–Mar 12th, 2026

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

Regions

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

Outflow winds are building new winds slabs on atypical slopes.

Actively look for signs of instability and identify wind slabs, listen for drum like sounds and hollow sounding snow.

Confidence

Avalanche Summary

No new avalanches reported.

Going forward, wind slabs remain possible to human trigger and may be found on atypical slopes.

Snowpack Summary

Heavily wind affected surfaces in all open terrain features at all elevations. Recent outflow winds developing wind slabs on atypical slopes due to reverse-loading.

A mid-February crust or facet layer sits 50 to 70 cm deep, and the late January crust/surface hoar layer is buried 50 to 100 cm deep.

Facets or depth hoar exist at the base of the snowpack and may be a concern in the inland side of the region, where the snowpack is generally shallower.

Weather Summary

Wednesday Night
Mostly clear skies. 20 km/h east ridgetop wind. Treeline temperature -24 °C.

Thursday
Mostly sunny. 20 km/h northeast ridgetop wind. Treeline temperature -25 °C.

Friday
Sunny. 10 km/h east ridgetop wind. Treeline temperature -23 °C.

Saturda
Mostly sunny. 20 km/h west ridgetop wind. Treeline temperature -20 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Watch for newly formed and reactive wind slabs as you transition into wind-affected terrain.
  • Watch for areas of hard wind slab on alpine features.
  • Pay attention to cornices and give them a wide berth when traveling on or below ridges.

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.