Avalanche — Wasatch Mountains South Of I-80, Utah

Event narrative (NOAA)

A group of three backcountry skiers set out early in the morning to ski in the Big Willow Aprons area near Lone Peak. After skiing for several hours without issue, an unintentionally triggered soft slab avalanche occurred on the north aspect of the slope (approximately 40 degree angle) around 10,600 feet elevation. The avalanche was approximately 18 inches deep, 150 feet wide, and had a vertical run of 800 feet. All three skiers were caught by the avalanche. One skier was partially buried and was able to self-extricate. After self-extricating, the skier attempted to find the transceiver signal of the buried skiers. Approximately 13 minutes after the avalanche, the skier successfully probed one of the buried skiers and uncovered them, but they were ultimately unresponsive when rescue breath

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