Jackson, Wyoming – On Sunday, April 9, 2017 snowboarder Alex Thompson triggered a soft slab avalanche in Granite Canyon in Grand Teton National Park outside of the backcountry gates at Jackson Hole Mountain Resort. The rider was carried approximately 1000 vertical feet and suffered minor injuries.
The incident occurred while Thompson was traversing across the top of the Air Force Chutes with 3 companions. After Thompson was caught in the slide, his backcountry partners skied down to him. The provided medical care and alerted authorities. Grand Teton Park Rangers, Teton County SAR, and Jackson Hole Ski Patrol responded to the scene and rescued Thompson.
The Bridger Teton Avalanche Center rated the avalanche hazard as “moderate.” The avalanche measure about 1 foot deep and 50 feet wide. Be careful out there.
JHAvalanche.org reports that the soft slab avalanche occurred in the Airforce Couloir at 8736′ on a NE aspect. The slope angle was 41-45 degrees. It was a R2, D1.5 and occurred at lat/long of 43.609722 -110.841042.
If you are unfamiliar with this lift accessed backcountry terrain in Grand Teton National Park, pick up a copy of the Jackson Hole Ski Atlas for detailed photos.