Tetons

Northwest winds and new snow will continue to load leeward slopes as the day progresses, increasing the avalanche hazard at the upper elevations. Backcountry travelers could trigger isolated pockets of surface slab up to 18 inches in depth, along with loose snow sluffs, in very steep, wind loaded avalanche terrain. Avalanches are unlikely at the mid elevations and new snow is falling on mostly bare ground below 7,500 feet.

Light snowfall is expected to continue through the night and into Monday morning before tapering to periods of snow showers in the afternoon and evening. Additional accumulations of three to five inches are possible. Temperatures in the mountains will be near 20 degrees overnight and rise into the mid 20s on Monday. Winds will be west-northwesterly and freshen to 25 to 30 miles per hour with higher gusts.The general avalanche is expected to be MODERATE at the upper elevations (9,000 to 10,500 feet) and LOW at the mid elevations (7,500 to 9,000 feet). At the upper elevations pockets of surface slab one to two feet in depth that have been formed by northwest winds could be triggered by humans who venture into steep avalanche starting zones. At the mid elevation isolated pockets of surface slab up to 12 inches in depth could be human triggered in very steep, wind drifted, avalanche starting zones. Too little snow exists below an elevation of 7,500 for avalanche activity to occur.