Rare snow rollers have been observed in Garrett County, Maryland, creating a captivating winter spectacle. These cylindrical snow formations require precise meteorological conditions, including a layer of wet snow, strong winds, and temperatures just below freezing. Often likened to tumbleweeds, snow rollers begin as small pieces of snow picked up by the wind, gathering more snow as they roll across the ground. The inner layers are typically weaker, resulting in a hollow center.