Southwest winds and new snow have formed new soft wind slabs at the mid and high elevations. Skiers and riders could trigger these slabs in avalanche terrain today as well as underlying harder wind slabs in very steep terrain. Avalanche activity at low elevations is limited to isolated pockets in steep avalanche prone terrain.
New soft wind slabs that formed overnight will be sensitive to human triggering today on a variety of aspects at the mid and high elevations. These slabs will have depths of under a foot. The chance also continues to trigger recently formed wind slabs in very steep exposed terrain to an additional two feet.
A Pacific low pressure system passing to the south of the region will provide limited moisture to the area starting after midnight and continuing through Friday. In the mountains accumulations could reach as much as seven inches in some areas with lower elevations receiving lesser amounts or possibly a mix of rain and snow. Winds are to be light with this system and mountain temperatures are to reach the upper twenties during the afternoon. The general avalanche hazard is expected to be Moderate. Surface slabs to two feet could be triggered in steep terrain in the Tetons. In the Southwest Trails/Greys River and the Togwotee Pass areas harder slabs to three foot depths could be triggered where they are underlain by weak faceted snow.
