https://www.youtube.com/embed/BAmq_icQ9ro?rel=0&showinfo=0 Montgomery County holds Mock Snow Day to prepare for winter weather GAITHERSBURG, Md. – Montgomery County held its annual Mock Snow Day in Gaithersburg help the county prepare for winter snowstorms. Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window) November 1, 2016