For comparison, here are satellite views of Lake Superior and Upper Michigan in late March over the last several years. Last year, the only ice left on Lake Superior was mostly in the bays, but snow cover was still abundant across Upper Michigan. If you were in Upper Michigan in March 2012, you know it was an unusually warm, even record breaking, March with high temperatures at many locations during the middle of the month reaching the 70s and even exceeding 80. Snow cover across Upper Michigan disappeared fast. The only ice on Lake Superior in late March 2012 was in the bays on the north side of the lake. The last time significant ice cover developed on Lake Superior was in the winter of 2008-2009, but by the end of March 2009, the ice coverage was not even close to the ice coverage that currently exists on the lake.