Tetons

Mostly stable snow exists. Instabilities associated with hard slabs on a weak base of faceted snow persist on very steep slopes in isolated areas, however no hard slab avalanche events have occured in over a week. Some potential remains for humans to trigger one of these dangerous hard slabs in cliff areas and on very steep hanging snowfields.

A fast moving low pressure system will bring steady snowfall to the area starting Sunday morning. Six to twelve inches of new snow could accumulate by the early hours of Monday. Westerly winds will back to the south overnight at 10 to 15 miles per hour before veering to the southwest and increasing to 25 to 35 during the height of the storm. Expect overnight lows in the mountains to be near 10 before rising into the low 20s on Sunday.The general avalanche hazard is expected to be LOW Sunday morning before rising to MODERATE later in the day as new snow driven by southwest winds begin to form shallow pockets of soft slab. These slabs, which lie upon good sliding surfaces, could be triggered by backcountry travelers in steep, wind-loaded starting zones.