Avalanche conditions are dangerous. New snow continues to increase the load on persistent weak layers that formed earlier in the season. Humans who venture onto steep avalanche prone slopes are likely to trigger large to very large slab avalanches. These dangerous slides are likely to be un-survivable. Expert snowpack and terrain analysis skills are essential for safe travel in avalanche terrain today.
Large to very slab avalanches could be easily triggered by a person on a variety of aspects. These slabs could be three to six feet deep.
In steep terrain above 7,500 feet west to southwest to northwest winds have formed wind slabs on leeward aspects. These slabs could be human triggered. They are likely to be 1 to 3 feet deep. These surface slabs could step down to weak layers deeper in the snowpack and become a large to very large persistent slab avalanche.
( Discussion is generated from the previous day's afternoon forecast. )Periods of light to moderate snow are expected until midnight. Periods of lighter snowfall will continue into Wednesday. Temperatures will remain in the single digits and teens in the mountains and be in the teens and 20’s at the lower elevations. Winds are forecast to be from the northwest at 10 to 20 miles per hour. The general avalanche hazard is expected to be considerable in the Greys River and Togwotee Pass areas. In these areas large to very large persistent slab avalanches are likely to be human triggered on some avalanche prone slabs. These dangerous slabs could be 2 to 6 feet deep. The general avalanche hazard is expected to be moderate in the Teton area where small to large slab avalanches could be human triggered on steep avalanche prone slopes. These slab avalanches could be 2 to 4 feet deep and could be large enough to seriously injure or kill a person.
