Chief Meteorologist Mark Finan breaks down what you need to know about a major snowstorm that will impact the Sierra this week. Subscribe to KCRA on YouTube now for more: http://bit.ly/1kjRAAn Get more Sacramento news: http://www.kcra.com Like us: http://facebook.com/KCRA3 Follow us: http://twitter.com/kcranews Instagram: https://www.instagram.com/kcranews/