Purcells

Forecast snow may form small wind slabs on lee features below alpine ridgetops.

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

A couple of naturally triggered wet slab avalanches up to size 2 were reported on sunny aspects on Tuesday.

5 to 15 cm of forecast snow may form small wind slabs on lee features below alpine ridgetops. The new snow overlies a crust on all aspects and elevations.

A widespread crust with facets above is down 60 to 110 cm. This layer is unlikely to human trigger in areas where a thick crust above the weak layer is present.

Wednesday Night

Mostly cloudy. 10 to 20 km/h east ridgetop wind. Treeline temperature -5° C. Freezing level 1100 m.

Thursday

Cloudy with isolated flurries, 5 to 15 cm. 10 to 20 km/h east ridgetop wind. Treeline temperature -3° C. Freezing level 1700 m.

Friday

Mix of sun and cloud with isolated flurries, 0 to 3 cm. 10 to 20 km/h east ridgetop wind. Treeline temperature 0° C. Freezing level 2100 m.

Saturday

Mostly cloudy with isolated flurries, 0 to 3 cm snow. 10 to 20 km/h northwest ridgetop wind. Treeline temperature -1° C. Freezing level 2000 m.

Check out the Mountain Weather Forecast for additional weather information.

More details can be found in the Mountain Weather Forecast.

• Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
• Avoid steep, rocky, and wind effected areas where triggering slabs is more likely.
• When a thick, melt-freeze surface crust is present, avalanche activity is unlikely.