Meteorologist: Why Montana Forecasts Are 'The Most Challenging' In The Country

With the first big winter storm of the season headed to western Montana, Marty Whitmore, warning coordination meteorologist with the National Weather Service in Missoula joins Michael Marsolek to talk weather. Whitmore previews the incoming storm, explains what those weather zones (pictured above) mean , and talks about why western Montana is one of the most challenging places to forecast in the country.