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Avalanche Forecast

Archived

Dec 7th, 2025–Dec 8th, 2025

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

Recent snow and wind have made wind slabs that will be most reactive in places they are sitting on a buried crust.

Confidence

Low

Avalanche Summary

A small ( size 1 ) remotely triggerd avalanche was reported at treeline elevation in this MIN ( Mountain Information Network ).

In general, observations are limited this time of year. Be sure to verify conditions as you go.

If you are getting out in the backcountry, consider making a post on the MIN.

Snowpack Summary

Expect to find soft snow in only the most in sheltered areas, and wind slab on leeward slopes.

Wind has varied in direction over the past few days, expect exposed areas to be generally wind-affected.

A crust is buried from 5 to 40 cm under the new snow. The bond between this crust and the new snow is very poor.

Below ridgetops there is an average snowpack depth of 110 cm. Snowpack depth gradually thins as elevation decreases to around 60 cm at the highway.

Many early season hazards are just below the surface at this elevation.

Weather Summary

Sunday Night
Mostly cloudy. up to 5 cm of snow. 30 km/h northeast ridgetop wind. Treeline temperature -20 °C.

Monday
Partly Coudy. 25 km/h northeast ridgetop wind. Treeline temperature -25 °C.

Tuesday
Mostly clear. 20 km/h east ridgetop wind. Treeline temperature -28 °C.

Monday
Clear. 20 km/h northeast ridgetop wind. Treeline temperature -30 °C.



More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Expect slab conditions to change drastically as you move into wind-exposed terrain.
  • Make observations and continually assess conditions as you travel.

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.