Large human triggered slab avalanches will continue to be a significant hazard at the upper elevations and in isolated areas at the mid elevations where a persistent weak layer lies upon an October rain crust. These dangerous slabs are up to three feet deep and will continue to be sensitive to the weight of a person for an extended period. Avalanches are unlikely in areas where this persistent weak layer on a hard crust combo does not exist. Expert terrain evaluation skills and a conservative approach are essential for safe travel in suspect terrain. Grand Targhee Ski Resort and the Jackson Hole Mountain Resort are closed to uphill traffic as resort workers conduct avalanche hazard mitigation efforts and prepare to open on Thursday.
Dangerous slab avalanches up to three feet in depth could be human triggered on east through north to west facing terrain at the upper elevations and in isolated avalanche paths that face north at the mid elevations.
Thursday looks to be similar to today in both temperatures and in the continued chances for occasional light snow and flurries. The avalanche hazard will remain considerable above 9000 feet where slabs to three feet in depth could be easily human in steep wind loaded avalanche terrain underlain by the October crust. The avalanche hazard below 9000 feet is Low.
