Tetons

Significant snowfall over the last several days and strong winds have formed slabs to four feet in depth at the high elevations and to three feet in depth at the mid elevations. These slabs could release naturally or be human triggered today and their size and sensitivity will increase as snowfall continues throughout the day. At low elevations small surface slabs could be triggered and danger also exists by being in the run out zones of higher paths that could avalanche. An Avalanche Warning has been issued for the mountains of Western Wyoming and backcountry travellers should avoid steep slopes and avalanche run out zones.

The ongoing snowfall is expected to remain heavy through the late evening hours. As the night progresses temperatures at 10,000 feet will drop into the upper single digits. On Friday snow and wind will taper down during the early morning hours. Light snow will persist into the afternoon; temperatures at 10,000 feet will remain in the upper single digits. Ridge crest winds will be northwesterly at 15 to 20 miles per hour.The avalanche warning issued for Thursday will expire tonight. The general avalanche hazard for Friday is expected to be CONSIDERABLE above 7,500 feet. Dangerous slab avalanches up to five feet in depth could be human triggered or release spontaneously. Below 7,500 feet the general avalanche hazard is expected to be LOW. Excellent avalanche skills are necessary for safe travel in avalanche prone terrain.