Tetons

At the higher elevations humans could trigger pockets of surface slab up to 12 inches deep on steep, leeward avalanche starting zones and cliff areas. These soft slabs lie upon hard, old snow surfaces. The wet, isothermal snowpack at the lower elevations is unstable. Wet slides are possible on steep snow covered slopes. The snowpack is expected to be mostly stable at the mid elevations.

Local periods of heavy snow threaten the mountains of Western Wyoming ahead of the passage of an upper level Pacific trough. After the trough, winds will veer to northwesterly bringing much cooler air. The northwest flow will continue Monday with light snow but little accumulation. Low temperatures at 9,500 feet will be in the low teens Monday morning and only warm to the upper teens during the day. Winds will be westerly at 20 to 25 miles per hour.Pockets of slabs to a foot in depth that could be human triggered may develop in areas that receive periods of heavy snow overnight at upper elevations. At low elevations below freezing temperatures will reduce the potential for wet loose slides. The general avalanche hazard is expected to be Low to Moderate and will be very dependent on the distribution of potentially heavy periods of snowfall and wind speeds.