These fascinating pictures show hundreds of snow rollers - a strange and rare weather phenomenon consisting of naturally-made snowballs. Snow rollers can only be formed when the snow is cold but not frozen and the wind is strong enough to move snow but not break it. A field full of the unusual snow rollers was discovered in Glassford, South Lanarkshire, by Eunice Clarke on Tuesday. These fascinating pictures show hundreds of snow rollers - a strange and rare weather phenomenon consisting of naturally-made snowballsThe natural sculptures roll up in the style of a tumbleweed or a hay bale and leave a trail behind them showing how they were made. Original video by Travis Blakemore on YouTubeSnow rollers can only be formed when the snow is cold but not frozen and the wind is strong enough to move snow but not break it

Source: Daily Mail January 18, 2018 12:51 UTC