Salt River and Wyoming Ranges

Periods of light to moderate snowfall will combine with strong westerly ridgetop winds to create new wind slabs above 7,500 feet. As the day progresses, these slabs will gain volume and depth. Skiers and riders could trigger these slabs in steep, wind-loaded terrain. Monitor weather conditions and avoid slopes with obvious signs of recent wind loading.

( Discussion is generated from the previous day's afternoon forecast. )The National Weather Service has issued a Winter Storm Warning for the Tetons and Gros Ventre Mountains beginning at 5 AM Sunday morning and continuing through 5 PM on Monday. During this same time period, the surrounding areas will be under a Winter Weather Advisory. Snowfall will develop overnight and continue through the day as moist, westerly flow resides over the region. Nighttime lows in the mountains will be in the teens before rising into the 20s during the day. Westerly ridgetop winds will range from 25 to 35 miles per hour with gusts to near 50.The general avalanche hazard is expected to increase to Moderate on Sunday. Wind slabs, which will form on stout sun crusts and wind pack, could be triggered by skiers and riders venturing in steep avalanche terrain. As the day progresses, these slabs will gain depth and volume. In the Togwotee Pass area, persistent weak layers deeper in the snowpack will remain a concern.