* WHAT...Heat index values of 100 to 104.
* WHERE...Portions of east central and southeast Indiana, northeast and northern Kentucky, and central, south central, southwest, and west central Ohio.
* WHEN...Until 8 PM EDT Wednesday.
* IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
* ADDITIONAL DETAILS...Consecutive days of excessive heat and humidity can be especially hazardous as warm overnight temperatures will provide little relief.