Tetons

The snowpack is mostly stable to 10,500 feet. Dry snow avalanches are unlikely except for isolated pockets of shallow wind slab in very steep terrain at the highest elevations. Clear skies and warm temperatures could destabilize the snow surfaces and increase the wet snow hazard. During the warmest periods of the day, wet loose avalanches may be possible at all elevations, especially on steep, solar aspects. These wet slides are expected to be small but evaluate surrounding terrain as they could increase in volume on steep slopes with extensive vertical relief. At the lower elevations, as the snowpack becomes warm and isothermal steep slopes should be avoided and roof slides are possible.

Tomorrow clear skies are expected to continue and temperatures are forecasted to be about ten degrees warmer. Overnight mountain temperatures will drop into the teens and twenties and then are expected to climb into the thirties and forties with valleys reaching the fifties. Ridge top winds will be south to west at twenty to thirty miles per hour. Clear skies and cold temperatures will form stout crusts, and by morning the avalanche hazard is expected to be Low up to 10,500 feet. Then as the day warms, the wet snow avalanche hazard will increase at all elevations. Significant warming could cause snow surfaces to become unstable and result in wet snow avalanches. Above freezing temperatures, will also increase the potential for cornices to fail and glide avalanches to occur. Glide cracks have been recently observed in the Southwest Trials / Greys River Forecast Area. At the lowest elevations, where an unstable, isothermal snowpack has formed avalanche prone slopes should be avoided. Roof slide are also possible. Tomorrow, backcountry travelers should monitor the daily warming and avoid steep sunlit slopes after snow surfaces become wet.