“An unusually late spring snowstorm pummeled the U.S. Midwest with snow,” says NASA.
“Green Bay, Wisconsin, experienced the largest April snowstorm on record, with more than 50 centimeters (20 inches) of snow falling over April 13–16.”
“The National Weather Service called it a “once in a lifetime” event. The storm closed roads and businesses for several days, caused sporadic power outages, and produced waves up to almost 5 meters (16 feet) high on Lake Michigan.”
Thanks to Clay Olson for this link