Steamboat & Flat Tops

Avalanche

Anonymous · Dec 3, 2022 · Steamboat & Flat Tops

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Observation photo 1

Weather

Obscured visibility snowing S-1, 4 degrees F wind 10-20 WSW

Snowpack

From the surface to the ground. Top 15cm F hard new snow wind broken precip particles, New old snow interface. F hard 20cm of facets below new snow. 1cm thick ice lens 30cm up from ground. 10 cm below lens 4F hard facets. Bottom of snow pack F hard large facets 2-4mm larger as they get closer to the ground Second pitch of east face ENE aspects 9500

Avalanche

Intentionally triggered during a ski cut soft slab, 18” crown that was roughly 25’ wide. Ran 50-60 feet downhill. Ran within old snow bed surface was the ice lens that formed on 11/6/22