Tetons
Avalanche danger
Avalanche Discussion
High pressure is rebuilding into the area with a few weak disturbances moving through that could bring light snow to the upper elevations. 10,000 foot highs will rise into the upper teens or warmer and valley inversions will strengthen. winds at 10,500 feet will blow northwesterly at 20 miles per hour and gust to 40. The General Avalanche Hazard in the TETON area will remain MODERATE on Monday. The possibility of backcountry travelers triggering surface slabs one to two feet in depth persists on steep, wind loaded slopes. The General Avalanche Hazard in the CONTINENTAL DIVIDE/TOGWOTEE PASS and SOUTHWEST TRAILS/GREYS RIVER areas will be MODERATE. In addition to the possibility of triggering surface slabs similar to those in the Teton area, persistent deep slab instabilities lurk. These supportable slabs, which conceal a base of weak, well-developed faceted snow, can give backcountry travelers a false sense of security. A varied snowpack has developed in Western Wyoming and CAUTION IS ADVISED. Both the surface slab and the deep slab problems that confront backcountry travelers this season can be difficult to predict. Over the past few weeks, numerous instances have occurred where slopes have failed after seeing significant traffic, while similar slopes have been heavily abused without incidence. Avalanche events have also been triggered remotely or on approach.