 A moderate risk for severe weather was issued by the Storm Prediction Center two days prior to the event . The storm then moved across the most of the Midwest on October 18 , where a moderate risk was in effect also for two days for most of Illinois , Indiana and parts of Kentucky , although the moderate risk was revised further to the south and east to include western Ohio , western Tennessee , southeastern Missouri , northeastern Arkansas and a larger portion of Kentucky while Michigan and Wisconsin were no longer under a moderate risk . A slight risk of severe weather was forecast for a large area from beyond the Canadian border to the Florida Panhandle and Mobile Bay . Dew points above 70 ° F ( 21 ° C ) were reported well into the Ohio Valley , and dew points above 60 ° F ( 16 ° C ) were reported as far north as northern Ontario . 
