Heavy snow in the Sierra intermittently closed highways and roads over the weekend. State police reported many accidents and spinouts on Interstate 80 and Highway 50. Over 200 passengers on an Amtrak train were stranded Saturday night when the sleeper car derailed near Donner Summit. Many flights at the Reno-Tahoe International Airport were delayed or cancelled because of record levels of snow. Karl Swanberg of the National Weather Service says even more snow is expected today. SWANBERG :07—That system from midday Monday through Tuesday would also probably deposit several feet of snow in the Sierra-Nevada. Throughout California there were hundreds of reports of evacuations and power outages due to flooding and heavy rains. In the southern portion of the state the wet weather is being blamed for mudslides, traffic accidents, and at least four deaths. Bob Hensley KXJZ News.