Tetons

On steep wind loaded aspects dangerous dense surface slabs up to three feet in depth could be triggered by humans or release naturally as the day warms. If significant warming occurs and skies clear the hazard could increase to HIGH. In this scenario large natural deep slab and/or wet snow avalanches are likely on steep sunlit aspects.

A quick moving Pacific storm system is expected to impact the region starting this evening and continuing into the morning hours on Monday. This system should produce four to eight inches of new snow and be accompanied by strong southwesterly winds at 25 to 35 miles per hour. Mountain temperatures will drop to near 10 degrees overnight before rising to near 20 on Monday.The general avalanche hazard is expected to be CONSIDERABLE in Western Wyoming on Monday. Diurnal warming and cooling cycles over the past two days have helped stabilize the snowpack. Overnight, new snowfall driven by strong southwest winds will form soft slabs 6 to 12 inches in depth which could be triggered by backcountry travelers in steep, wind-loaded terrain. In the Southwest Trails/Grays River area, some potential remains for deeper avalanches.