Tetons

Strong and gusty south-southwest to west-southwest winds have created new wind slabs up to a foot deep that will gain depth and volume as the day progresses. These slabs lie upon slick old snow surfaces and are likely to be easily triggered by a the weight of a single person on steep slopes with smooth old snow surfaces. At the upper elevations these slabs will be more prevalent in extent and could catch, carry and bury people. At the mid and lower elevations these slabs are likely to be found in isolated pockets in steep, wind loaded avalanche starting zones and on steep banks and road cuts. Evaluate snow and terrain carefully and identify and avoid areas of concern.

On and off light snowfall will continue in the mountains overnight through Friday. Snowfall accumulations of several inches are likely overnight and during the day on Friday. Winds will be southwest at 25 to 35 overnight and back to the south and decrease to 20 miles per hour on Friday. Temperatures in the mountain will rise into the 20s during the day. Winds slabs formed today will continue to gain depth and volume overnight. At the higher elevations (9,000 to 10,500 feet) the general avalanche hazard is expected to be MODERATE. Humans who venture onto steep slopes with drifts of new snow could trigger wind slabs up to 18 inches in depth. Below an elevation of 9,000 feet the general avalanche hazard is expected to be LOW. Isolated pockets of wind slab six to 12 inches deep could be human triggered in steep wind loaded avalanche starting zones.