Tetons

At the mid and upper elevations, the general avalanche hazard will increase during the day as sunshine and warm temperatures heat the upper portion of the snowpack. Areas of deep slab instability persist in steep, avalanche-prone terrain. Skiers or riders could cross these dangerous hard slabs, which could be up to six feet deep, multiple times before a weak zone is encountered, causing failure of the slope. As the day progresses, surface wet slides will also become possible on steep, sun-affected aspects. Backcountry travelers should evaluate the snow and terrain carefully and use good travel habits. At the lower elevations, the snowpack is mostly stable and avalanches are unlikely.

Inversion conditions are to continue through Wednesday night. Highs in the mountains are expected to be slightly cooler, reaching the upper thirties. The general avalanche hazard is expected to be Moderate on Wednesday. The likelihood of triggering a slide on the persistent deep layer is improbable yet remains possible especially during the warmer part of the day and it is likely to require larger loads such as snowmobiles or several people on a slope to initiate. Predicting which slopes in steep avalanche terrain where these dangerous slabs might still be triggered is very difficult.