If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.

* WHAT...Heavy snow expected. Total snow accumulations of 1 to 2 feet, with 4 feet over the higher peaks. Winds gusting as high as 45 mph. * WHERE...West Slope Northern Sierra Nevada, including Interstate 80 over Donner Pass and Highway 50 over Echo Summit. * WHEN...From 6 PM this evening to 8 AM PDT Sunday. * IMPACTS...Travel could be very difficult from delays, snow- covered roads, and chain controls. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Snow levels 6000 to 7000 feet, lowering to 4000 to 5000 feet on Saturday, decreasing to around 3500 to 4000 feet Sunday morning.