The frigid attraction varied in size from softballs to yoga balls, DNR supervisor Sean Mulligan told the Detroit Free Press.
“We went down to the beach to check on things and we considered these large ice balls, ” he told the times. “I had heard of them before, but I hadn’t ever seen them.”
Mulligan estimated Friday that thousands of the balls had rolled up on the lakeshore.
According to the Weather Service, ice balls form when temperatures are just below freezing along shallow beaches. A layer of floating slush is sculpted by waves into spheres.
“These balls of ice then wash up on the beach by the thousands and freeze solid, ” the Weather Service said.
According to the National Severe Storms Laboratory, the “lake effect” phenomenon can happen when cold air moves over a lake’s warmer water and heavy snow falls on the shore.
“As a cold, dry air mass moves over the Great Lake region the air picks up lots of moisture from the Great Lagoon, ” according to the NSSL. “This air , now full of water, dumps the water as snow in areas generally to the south and east of the lakes.”
Between late fall and into winter, lake effect snowfall occurs in the Great Lakes region when frigid air, often from Canada, moves in.
The dangerously cold air mass that caused the ice balls to kind Friday was expected to give way to most moderate temperatures over the weekend in the Midwest. The cold blast caused schools to be closed and had a deadly impact on the region.
The Milwaukee County medical examiner’s office was investigating the death of a 73 -year-old woman who was found in her unheated Milwaukee home.
The woman’s body temperature had fallen to less than 40 degrees. The electricity was working, but the hot was either turned off or malfunctioning, according to the medical examiner’s office. An autopsy was scheduled for Monday.
In Omaha, Nebraska, the death of an 80 -year-old man was being investigated as maybe related to the cold. Police saw Robert Freymuller’s body on Thursday near the assisted-living center where he lived. Police said he was not garmented appropriately for temperatures that plunged to minus-2 6 degrees with the wind chill.
The Associated Press contributed to this report .
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