September 21, 2017 1:45 pm RAW: Snow Falling in the Sierra Nevada on Last Day of Summer Several inches of snow are expected at elevations of at least 6,000 feet in the northern Sierras, according to the National Weather Service. US & World Videos 2:05 Police find, return dozens of abandoned Amazon packages 0:28 A Vermont state trooper plunges into icy pond to rescue 8-year-old girl 2:59 Keep these travel etiquette tips in mind this holiday season