Tetons

A winter weather advisory is in effect for the Teton and Gros Ventre mountains through 2am Saturday. New snow is falling on a shallow and stable snowpack at the mid and upper elevations. Later in the day, shallow isolated pockets of wind slab may form along ridge crests and near summits. Use caution in the early season snowpack as many hazards exist just below the snow surface. At the low elevations, new snow is falling on the ground and depths remain too low for avalanches.

Light to moderate snowfall is to continue through most of the evening and night. Additional accumulations of two to six inches is possible by sunrise in favored locations. Temperatures should drop overnight into the teens on summits and to the mid-twenties in valleys before climbing tomorrow to the low twenties up high and mid-thirties down low. Skies will be mostly cloudy during the day with isolated mountain showers. West winds are to average between 20 and 25 mph. The general avalanche danger will be LOW on Saturday above 7500 feet where new snow is accumulating on a shallow snowpack. Near 10000 feet isolated very small wind slabs could be present in shaded cliff bands although travel to that terrain is difficult and unlikely. Terrain below 7500 is not yet rated due to insufficient coverage.