Gunnison

Avalanche

CBAC Staff · Nov 11, 2022 · Gunnison

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Weather

Cold air temperatures, light northwest winds with some occasional gusts transporting tiny amounts of snow under mostly clear skies.

Snowpack

We traveled mostly through easterly aspects up to 12,200. New snow accumulations ranged from 4-8?. Relatively light winds during and following the recent snowfall did not produce much loading; a nearby northwest-facing (windward) alpine feature was still holding much of the recent storm snow (see photo). While ascending easterly slopes near treeline we experienced a couple of moderate-sized collapses; a test profile revealed facets sitting atop the 11/3 melt/freeze crust. The overlying slab was around 60cm thick and remains soft in sheltered areas but could produce avalanches on terrain features with previous drifting. The most recent snowfall made it difficult to visually identify terrain features with previous drifting and stiffer more cohesive slabs. Additionally, we traveled on alpine southeast-facing terrain and found around 8? of new snow resting on a supportive to skis melt/freeze crust with a foot of dry snow below that with some ice columns supporting the crust to the ground.

Avalanche

Observed a couple of small recent avalanches than appeared to fail in the recent snow. All above treeline; north through east aspects.