Tetons

The snowpack is mostly stable as it has undergone melt-freeze cycles since the beginning of March. Today, new snow is expected over the Tetons with moderate to strong winds, and these conditions could form shallow small pockets of wind slab on leeward slopes at the highest elevations. The new snow is falling on firm surfaces, so loose snow sluffing could occur naturally on steep terrain. If there are periods of sunshine, the new snow could become reactive and easily slide on firm surfaces. Monitor the development of the storm and the strange loading pattern with atypical easterly winds.

A low-pressure system, currently centered over northeast Nevada, is expected to continue to impact the area through tomorrow with periods of snowfall. The new snow accumulation should be a few more inches overnight and then possibly 1 to 3 inches tomorrow favoring the southern end of the forecast area. Winds should lessen overnight and then, tomorrow will be from the northwest to east at 10 to 18 miles per hour with gusts in the twenties. Mountain temperatures will start in the teens and then warm into the upper twenties and low thirties. The avalanche hazard is expected to be Low. Strong winds and new snow have formed small wind slabs above 9,000 feet on leeward terrain features. In many areas, these slabs lie over rough surfaces and should bond to the old snow. Although, where the new snow lies over smooth firm surfaces, skiers and riders could trigger small slabs, less than a foot in-depth, on steep avalanche terrain.