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Recreational Observation

Immediately under the large cliffs that are above the southern slopes of Lower International. Heading near the Shot Six area. I was doing a high traverse six feet above the previous high track.

Jan. 11, 2018, 12:45 p.m. PST

Weather: Rapid accumulation for 18 hours, medium winds, warming slightly.

Snowpack: About 20-24 inches new, relatively dry snow, windloaded. Had been observing some cracking.

Area Description: Alpental Ski Area. Far skiers right traverse from Lower International.

Avalanches: I stupidly was doing an extra high traverse, walking, my partner was directly 25 feet below me. I had observed some cracking, slabbing, and paused, and almost warned him to clear out because a slab might go. There was a steep convex mini ridge I was starting to walk over. A shallow (6-16 inch?) slab about mattress or two sized slab broke off and ran fast. It ran all the way down, at least 800 feet, and the debris was at least a few feet deep. My partner was caught almost immediately, but stayed on his feet, and eventually was able to ski with it and to the side where he ended up waist deep. He was wearing an avalung. His skis were stripped off at the end and lost. Thankfully it seems no one else was below, patrol was already heading there to inspect this most avy prone area of the inbounds terrain, and brought a dog with them after I called in the incident.

Observation by Cyril Benda

Latitude: 47.332192

Longitude: -121.318760

Did you see any avalanches? Yes

Did you trigger any avalanches? Yes

Was anyone caught in an Avalanche? Yes