Tetons

Strong southwesterly to westerly winds and recent snowfall have formed new surface slabs to two feet in depth. At the mid and upper elevations, backcountry travelers could easily trigger these slabs in steep, wind loaded terrain. Triggering deeper hard slabs, up to four feet, will also remain possible. Some possibility persists for these slabs to release naturally and any extended periods of sunshine will make them more susceptible to failure. Careful snowpack evaluation, cautious route finding, and conservative decision making will all be essential for safe travel in avalanche terrain today. At the lower elevations, the shallow snowpack is mostly stable and avalanches are unlikely.

A Pacific low pressure system is expected to impact the region starting late Sunday night and into Monday bringing moderate to heavy snowfall through the day. Ridgetop winds will back to the south at 15 to 25 miles per hour. Overnight lows in the mountains will be in the mid teens before rising into the mid 20s on Monday.The General Avalanche Hazard is expected to be CONSIDERABLE Monday morning and will rise during the day as new snow and winds form new soft slabs and add weight to existing surface slabs. Backcountry travelers could trigger these slabs to depths of one to four feet in steep, wind loaded terrain. Careful snowpack evaluation, cautious route finding, and conservative decision making will all be essential for safe travel in avalanche terrain on Monday.