Ice was heard cracking on the shore of Lake Superior on Saturday, April 5, as sunlight glistened off the frozen coastal area.

Economically speaking, we have shuffled out onto a frozen lake and heard the ice beneath us crack. Now we wait to see if we will fall through into the freezing water below.

“My brother was on one of the few flights into Chicago this morning,” one tweeter captioned a shot of the lake from the air. “He took this photo of frozen Lake Michigan from the plane.