Flood Advisory

* WHAT...Flooding caused by excessive rainfall is expected.

* WHERE...A portion of northeast Illinois, including the following counties, Cook and Will.

* WHEN...Until 145 AM CDT.

* IMPACTS...Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Roads and streets may be flooded.

* ADDITIONAL DETAILS... - At 943 PM CDT, Doppler radar indicated heavy rain due to thunderstorms with rainfall rates of 1 to 2 inches per hour. Some locations have already received multiple waves of rainfall, with additional thunderstorms moving into the area. Urban flooding of yards and roadways may begin shortly. - Some locations that may experience flooding include... Chicago, Joliet, Elgin, Cicero, Hammond, Arlington Heights, Evanston, Schaumburg, Palatine, Skokie, Des Plaines, Orland Park, Tinley Park, Oak Lawn, Berwyn, Mount Prospect, Hoffman Estates, Oak Park, Glenview and Buffalo Grove. - http://www.weather.gov/safety/flood