|Ice cover was at 79.8% on 2/26/14|
On average, since 1973, the maximum ice extent is a bit over 50 percent. It has only been over 80 percent five times in the past forty years.
The lowest average ice extent occurred in 2002, when only 9.5 percent of the lakes froze.
|This image was acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite on February 19, 2014. It shows the Great Lakes in natural color in the early afternoon, when ice covered 80.3 percent of the lakes, according to NOAA’s Great Lakes Environmental Research Laboratory.|