Some of the most notable weather events in the county include the 1965 Palm Sunday tornado outbreak , the Blizzard of 1967 , the 1967 Belvidere - Oak Lawn tornado outbreak , the Blizzard of 1979 , the Flood of 1996 , the Blizzard of 1999 , the Early Winter 2006 North American Storm Complex , the 2007 Midwest flooding event , the January 2008 tornado outbreak sequence , and the Blizzard of 2011
2007 Midwest flooding
2007 Midwest flooding
McHenry County, Illinois