Tetons

Over four feet of new snow since Thursday created dangerous slabs to 6 feet in depth at Upper and Mid elevations. Human triggered avalanches are likely. Yesterday people were able to trigger slides in steep areas particularly near ridge crests or cross loaded ridges and widespread natural activity occurred during a mid day sun break. Similar events with slab depths of 1 to 6 feet in depth are expected today. At low elevations slabs to 2 feet in depth could be triggered in very steep areas such as ravines or near cliff areas. Cautious route-finding and conservative decision-making are essential for safe travel today.

Slabs from the storm snow will continue to be sensitive to human triggers especially during periods of direct sunshine on slopes. Triggered slides could be one to six feet in depth and run entire slidepaths. The Avalanche hazard is expected to be CONSIDERABLE in the Tetons and Salt/Greys areas. In the Continental Divide/Togwotee Pass area two feet of new snow rests on a very weak faceted base. Activities such as high marking are likely to initiate large, dangerous slides two to four feet in depth. The avalanche hazard there will be MODERATE.