After a much colder start to Winter this year, Great Lakes ice cover has grown quickly. According to data from the National ...

The overall highest percentage of ice coverage for all the Great Lakes took place in 1979 when they were 94.7% covered, NOAA said.

The overall highest percentage of ice coverage for all the Great Lakes took place in 1979 when they were 94.7% covered, NOAA said. In 2002, the Great Lakes basin had just 11.9% ice coverage ...