Dashboard Regions Weather Stations Radar Alerts Glossary
Contact About
Log In

Register for an account and never miss a forecast again!

Register

Avalanche Forecast

Archived

Dec 7th, 2025–Dec 8th, 2025

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

Regions

Purcells, South Rockies, Dogtooth, East Purcell, Bull, Elkford East, Elkford West.

Watch for pockets of fresh wind slab as you gain elevation, while at lower elevations the hazard remains typical early-season conditions.

Confidence

Low

Avalanche Summary

Over the last 4 days, size 1-1.5 wind slabs and loose dry avalanches have been consistently reported - reflecting the range of conditions found at higher elevations.

Snowpack Summary

The upper snowpack is a mix of wind-affected snow in open areas and softer snow in sheltered spots, sitting on top of faceted snow or surface hoar. A crust from mid November is buried 20-30 cm deep. Lower in the snowpack, there are several crusts, and in some areas a weak, sugary facets can be found near the ground.

Snowpack depths range from 60–80 cm, thinning quickly at lower elevations. In many areas, especially below treeline, slopes lack enough snow to cover ground roughness and produce avalanches.

Weather Summary

Sunday Night
Mostly cloudy. 1 to 2 cm of snow. 40 km/h west ridgetop wind. Treeline temperature -4 °C. Freezing level 1400 m.

Monday
Mostly cloudy. 1 to 5 cm of snow. 50 km/h west ridgetop wind. Treeline temperature -4 °C. Freezing level 1400 m.

Tuesday
Mix of sun and clouds. 10 to 15 mm of precipitation as snow or rain at treeline in the morning. 40 km/h west ridgetop wind. Treeline temperature -1 °C. Freezing level 1900 m.

Wednesday
Mix of sun and clouds. 1 to 3 cm of snow. 30 km/h southwest ridgetop wind. Treeline temperature -1 °C. Freezing level 1800 m.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Be careful with wind-loaded pockets, especially near ridge crests and rollovers.
  • Carefully evaluate steep lines for wind slabs.
  • Be cautious of buried obstacles, especially below treeline.

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.