A skier remotely triggered several hard slab avalanches on a steep northerly aspect of East Angle Mountain at an elevation of 10,000 feet on Monday. These slabs failed on faceted snow at the base of the snowpack with crown depths that ranged from 18 to 36 inches deep. Similar events could human triggered today on very steep rocky slopes that face north at the upper elevations. The general avalanche hazard is MODERATE above an elevation of 9,000 feet and LOW below that elevation where mostly stable conditions exist.
Humans who venture onto steep north facing slopes above an elevation of 9,000 feet could trigger hard slab avalanches with crown depths to three feet. These hard slabs are most likely to be triggered in rocky areas where faceted snow persists at the base of the snowpack. Trigger points are likely to be areas where the snow cover is thinner.
( Discussion is generated from the previous day's afternoon forecast. )Skies are forecast to remain partly cloudy. Temperatures will fall to near 20 degrees overnight and rise into the 30s on Wednesday. Winds will be light from the west.The general avalanche hazard is expected to be LOW in the Teton and Greys River areas and be MODERATE in the Togwotee Pass area. Mostly stable snow exist, however isolated areas of instability exist on steep, northerly aspects at the upper elevations. In these areas some potential persist to trigger hard slab avalanches up to three feet in depth in steep, rocky areas with faceted snow at the base of the snowack.
