We received a second hand, anonymous report of a lone skier who skinned up near Alta and entered the Supreme area, which was closed. They attempted to ski down the steep slopes under the lift and triggered an avalanche, which carried him down quite a ways where he was mostly buried but managed to get out on his own. He lost a ski but recovered it. They reported it to the Alta Ski Patrol afterward. He had an Avalung but did not remember to get it in his mouth, plus, everything happened so quickly.
Again, this was an area of Alta that was closed at the time and no avalanche control had been conducted.