Soft surface slabs lie upon a variety of sliding surfaces and weak layers. Backcountry travelers could trigger these slabs in steep, avalanche-prone terrain. These slabs also have potential to step down to deeper layers of weak faceted snow. Evaluate the snow and terrain carefully, and avoid areas of concern.
On steep slopes that have not experienced recent avalanche activity, backcountry travelers could trigger large slab avalanches that fail on persistent weak layers. These slabs, with depths of two to four feet, could release to the ground.
( Discussion is generated from the previous day's afternoon forecast. )Arctic air will persist, and similar weather conditions are in store for Thursday. Overnight lows in the mountains will be near negative 10 before climbing into the positive single digits during the day. The chance for light snowfall will continue tonight and into Thursday with possible accumulations of two to four inches of new snow by tomorrow evening. Southwesterly ridgetop winds will range from 5 to 15 miles per hour.Backcountry travelers could trigger persistent slabs up to four feet deep. These slabs lie upon a snowpack with poor structure. This is particularly true in the Togwotee Pass area where the shallow snowpack is more faceted. There, the general avalanche hazard is expected to be CONSIDERABLE. In the Tetons and the Greys River area, the general avalanche hazard is expected to be MODERATE.
