Heavy snow and wind impacted travel in northern California, causing delays and multiple spinouts, on Saturday, December 14, local authorities said.Footage posted by California Highway Patrol (CHP) in Truckee shows wet and icy conditions along Interstate 80 near Donner Summit on Saturday evening, and a Porsche stranded in the snow.The winter storm warning ended in the region by Saturday night, and a winter weather advisory was issued in parts of the region through Tuesday. Credit: CHP Truckee via Storyful