The polar vortex has kept Lake Michigan frozen for the most part of winter. For example, in Chicago, Illinois, temperatures reached -30C (-23F) during the peak of the cold, causing ice shelves to form on the lake – hills formed from waves...
The polar vortex has kept Lake Michigan frozen for the most part of winter. For example, in Chicago, Illinois, temperatures reached -30C (-23F) during the peak of the cold, causing ice shelves...
