Togwotee Pass

At the mid elevations cooling temperatures will be decreasing the wet snow avalanche hazard. At the higher elevations new snow and strong southwesterly winds will begin to create isolated pockets of shallow wind slab along the higher ridge crests. These small new slabs could build to depths of 4 to 8 inches by the end of the day. They will form on slick old snow surfaces and are likely to be sensitive to human triggers. Watch for unstable snow in isolated terrain features. The lower elevations have insufficient snow depths to produce avalanche activity.

( Discussion is generated from the previous day's afternoon forecast. )An upper level disturbance and cold front will swing through the area late tonight and into Monday. The track of this fast moving storm will favor the Teton Range, Yellowstone National Park and the Togwotee Pass area. Precipitation will begin in the early morning hours. Snow levels will initially start out around 8,500 feet and will descend to the valley level during the day. Temperatures on the summits will drop to around 30 degrees by daybreak and drop into the lower 20s by evening. Southwest winds will increase and veer to the northwest. The cooling temperatures will decrease and eventually end the wet snow avalanche hazard. Strong winds will begin to form isolated pockets of new soft slab on leeward aspects at the highest elevations. The general avalanche hazard is expected to be LOW.