ice cover | Michigan Radio
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ice cover

ice cover on the great lakes january 21 2021
National Oceanic and Atmospheric Administration

The Great Lakes have been slow to freeze this year, compared to years past. Currently, around 2.4% of the Great Lakes are covered by ice, concentrated in the Green Bay region off Lake Michigan and Saginaw Bay in Lake Huron. That's lower than 11% cover at this time last year.

Jia Wang is an ice climatologist for NOAA. He says it's been a warm winter in the Great Lakes region.

"[Ice cover] is very very low, unusually low this year, compared to other years and compared to the average. This year, air temperatures are so warm. Air temperature has a negative correlation with ice cover. Of course, if it's warmer, there's less ice cover," he says.