NASA/MODIS
Lake Superior Ice Cover: Feb. 11, 2014
After weeks of subzero lows by the Lake, ice cover on Lake Superior reached 95.28 percent yesterday, according to the Great Lakes Environmental Research Laboratory.
This image, from NASA's Aqua satellite, shows the few areas of open water, off Isle Royale and along Minnesota's North Shore. See the full-resolution version at the University of Wisconsin's MODIS Today website.