Tetons

New snow will begin to accumulate and is not expected to bond well to old snow surfaces. By the end of the day small pockets of new soft slab three to six in depth could form in upper elevation avalanche starting zones loaded by northwest winds. Isolated pockets of old hard slab up to 20 inches deep also exist and could be triggered by the weight of a single person. Caution is advised above terrain traps, in extreme terrain and in cliff areas.

A moist northwest flow will bring snowfall to the mountain overnight and into Saturday. Accumulations of five inches are expected at the higher elevations overnight and will be accompanied by strong west winds. On Saturday light snowfall will continue with several inches of additional accumulation. Temperatures will be in the teens and 20s. Winds will be west to northwest at 25 to 35 miles per hour. Strong winds will create new soft slabs up to 16 inches deep on leeward aspects. These slabs will form upon good sliding surfaces and are likely to be easily triggered by humans. The general avalanche hazard will increase as the day progresses and is expected to be MODERATE at the higher elevations (9,000 to 10,500 feet) and LOW below an elevation of 9,000 feet.