The National Weather Service in Chicago has issued a * Flood Advisory for... Southeastern Cook County in northeastern Illinois... Northeastern Kankakee County in northeastern Illinois... Will County in northeastern Illinois... Northwestern Jasper County in northwestern Indiana... Lake IN County in northwestern Indiana... Porter County in northwestern Indiana... * Until 1145 PM CDT. * At 834 PM CDT, doppler radar indicated heavy rain due to thunderstorms. Up to 1 inch of rain has fallen. * Some locations that will experience flooding include... Joliet, Hammond, Gary, Orland Park, Tinley Park, Romeoville, Plainfield, Calumet City, Portage, Merrillville, Valparaiso, Chicago Heights, East Chicago, Schererville, Hobart, Lansing, Oak Forest, Crown Point, Harvey and Lockport. Additional rainfall of 1 to 3 inches is expected over the area. This additional rain will result in minor flooding.