The air temperatures this past week averaged around five degrees below normal for the Great Lakes area. This amount of deviation from normal means it was a fairly cold week.
As of February 5, 2014, the entire Great Lakes system is now reportedly covered 77 percent with ice, according to the Great Lakes Environmental Research Laboratory. Last week at this time the ice cover was 66 percent. The 77 percent ice cover now still lags behind 1994, when the entire Great Lakes system had an average ice cover of 84 percent on February 5. This data is according to Jia Wang, physical oceanographer at the Great Lakes Environmental Research Center in Ann Arbor, MI.
Lake Superior is almost frozen over as of yesterday February 5, 2014. Lake Superior is 92 percent covered with ice now. The ice has increased rapidly in the past week, from 76 percent ice cover on January 30, 2014. The high resolution satellite picture from February 3, 2014 shows all of the ice cover on Lake Superior. The current ice cover on Lake Superior is the highest amount ever for February 5. In 1994, Lake Superior was reportedly 91 percent covered in ice.