Avalanche Forecast

Moderate

Wind affected features continue to be reactive to human triggering at higher elevations.

The reactivity and distribution of the early December persistent layers are not well understood in this region. Reports indicate it may become an issue in the far south. Last reported avalanches on this layer occurred on a west-facing slope at 2200 m near Revelstoke on Saturday. This layer is likely most triggerable in areas where the snowpack is thinner, and sheltered from wind.

Light amounts of snow continue to accumulate, falling on wind affected settling storm snow or a melt freeze crust on previously sun affected slopes.

A layer of surface hoar, crust or facets (or a combination) exists 50-100 cm deep. Reports indicate this layer is hard to find and not a concern north of Highway 5. In terrain closer to Revelstoke, this layer has shown reactivity to remote triggers on west facing slopes at 2200 m. Reactivity is not well understood at this time, as no further avalanches have been reported. Surface hoar is most likely preserved in large, open sheltered slopes at treeline.

HS at treeline measures 120-150 cm. Cornices may be large, and weakened from mild temperatures.

Tuesday Night

Mostly cloudy with up to 10 cm of snow for the Cariboos, 5 cm for the North Columbias. 30 to 40 km/h southwest ridgetop wind. Treeline temperature -4 °C.

Wednesday

Mostly cloudy with another 5 cm of snow possible. 30 to 50 km/h southwest ridgetop wind. Treeline temperature -5 °C.

Thursday

Mostly cloudy with another 5 to 10 cm of snow possible. 30 km/h southwest ridgetop wind. Treeline temperature -5 °C.

Friday

Clearing skies. 20 to 30 km/h south ridgetop winds. Treeline temperatures around -8 °C.

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.
• Pay attention to cornices and give them a wide berth when traveling on or below ridges.