The National Weather Service in Reno has issued a winter storm warning through Wednesday morning for the Lake Tahoe area, with up to 20 inches of snow expected in upper elevations.
Four to 8 inches is expected at lake level, where a storm watch goes into effect Thursday afternoon through Friday night.
The watch includes Reno and Carson City, where a half-foot of valley snow is possible and up to a foot in the foothills.
In northeast and north-central Nevada, a winter weather advisory runs Wednesday morning to Thursday evening with up to 8 inches of snow forecast and more in the highest elevations.
Las Vegas will be under a wind advisory from 11 a.m. to 11 p.m. Wednesday, with gusts up to 50 mph.