The illusion is called a "superior mirage" — a phenomenon where shifting temperatures over the water bends light waves so people ... over the cold or even frozen lake, according to Milwaukee ...

Wavy pancake ice could be seen on the waves of Lake Superior in Wisconsin in video posted on April 14, as winter weather advisories were in place. Footage filmed by local photographer Cheryl Koval ...

Ice was heard cracking on the shore of Lake Superior on Saturday, April 5, as sunlight glistened off the frozen coastal area. Cheryl Koval filmed on a clear day from Ashland, Wisconsin. Koval said the ...

The illusion is called a "superior mirage" — a phenomenon where shifting temperatures over the water bends light waves so people ... over the cold or even frozen lake, according to Milwaukee ...