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Avalanche Forecast

Archived

Feb 17th, 2025–Feb 18th, 2025

Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.
Alpine
Natural avalanches unlikely.
Treeline
Natural avalanches unlikely.
Below Treeline
Natural avalanches unlikely.

Regions

Purcells, Esplanade, Dogtooth, East Purcell, St. Mary, West Purcell.

Continue to practice good travel habits.

Don't ride above your buddy.

Confidence

High

Avalanche Summary

Over the weekend there were numerous, small dry loose avalanches and a few small rider-triggered slabs failing within the new snow.

Snowpack Summary

5 to 10 cm of recent snow may be covering a layer of surface hoar in sheltered areas, or a hard sun-crust on sunny slopes.

A weak layer from late January is buried 20 to 40 cm deep. This layer consists of a crust on sun-exposed slopes, and facets and/or surface hoar on other aspects.

A weak layer of facets from early December is buried 60 to 120 cm. The base of the snowpack consists of a thick crust with facets or depth hoar in many areas.

 

Weather Summary

Monday Night

Mostly clear skies. 15 km/h northwest ridgetop wind. Treeline temperature -13 °C.

Tuesday

Sunny. 10 km/h southwest ridgetop wind. Treeline temperature -8 °C.

Wednesday

A mix of sun and cloud. 10 km/h south ridgetop wind. Treeline temperature -11 °C.

Thursday

A mix of sun and cloud with 1 cm of snow. 10 km/h west ridgetop wind. Treeline temperature -5 °C.

More details can be found in the Mountain Weather Forecast.

Terrain and Travel Advice

  • Use caution above cliffs and terrain traps where even small avalanches may have severe consequences.
  • Be aware of the potential for loose avalanches in steep terrain where snow hasn't formed a slab.

Problems

Loose Dry

Loose Dry avalanches are the release of dry unconsolidated snow and typically occur within layers of soft snow near the surface of the snowpack. These avalanches start at a point and entrain snow as they move downhill, forming a fan-shaped avalanche. Other names for loose-dry avalanches include point-release avalanches or sluffs.