Tetons
Avalanche danger
Highlights
TRAVEL IN AVALANCHE TERRAIN IS NOT RECOMMENDED. Very strong west-southwest winds have blown new snow and two or more feet of older snow into widespread, easily triggered or naturally occurring dangerous slabs to four or more feet in depth on lee slopes at Upper and Mid elevations. Avalanche mitigation work on Teton Pass resulted in several large slides. At low elevations heavy drifting has created sensitive slabs to 18 inches in depth in very steep areas such as ravines or road cuts.
Avalanche Discussion
Periods of light snow are possible overnight before snowfall increases through Thursday and Thursday night. Temperatures are to rise into the teens and winds are to be westerly with averages of twenty to twenty five miles per hour. The avalanche hazard in the Teton area is expected to be CONSIDERABLE at the high elevations and MODERATE at the mid elevations . Slabs to three foot depths could be triggered in steep wind loaded avalanche terrain. These slabs could release in small pockets or involve wider slabs in exposed bowls or large wind loaded terrain features above 9000 feet.The avalanche hazard is expected to be MODERATE in the Togwotee Pass and Greys River areas. Less snow has fallen in these areas, however, strong winds have loaded steep avalanche terrain and human triggered avalanches are possible, particularly in high exposed bowls and steep slopes near cliffs, ridge lines, and mountain peaks. Slab depths to two feet are possible in the Togwotee Pass area, while depths to three feet are possible in the Southwest Trails/Grey’s River area.