Tetons

At the mid and upper elevations the snowpack is shallow and mostly stable. There is a chance that a person could trigger a thin wind slab up to a foot in depth on an isolated terrain feature. Small slides can cause serious injuries in these shallow snow conditions. The potential to hit a a rock or other obstacle is the greatest hazard. Below 7500 feet, snow depths remain too low for an avalanche rating. Grand Targhee Resort is closed to uphill travel while they prepare the slopes for tomorrow's opening.

The vigorous system is to bring six to eight inches to the Tetons and slightly lower amounts to the other forecast areas. This accumulation is happen quickly and be mostly over by mid-morning. Valleys are to receive one to three inches. The storm is bringing cold air and morning temperatures are to be in the single digits up high and in the teens in the valleys. As skies become mostly clear in the afternoon, highs are to stay below freezing, reaching the teens in the mountains and the upper twenties down low. Winds are to be strong and veer from the west to northwest during the precipitation event and then are expected to diminish during the day. The general avalanche hazard is expected to be Low on Wednesday but could increase to Moderate. New snow will lie upon a shallow and stable snowpack. If significant snowfall occurs, isolated pockets of instability may be present above 9000 feet in the Tetons in the form of loose snow sloughs or as small wind slabs along ridge crests and peaks. Check the morning forecast for updated information on snowfall and hazard ratings.