* WHAT...Heat index values between 100 and 107 for at least three successive days. Limited nighttime relief as low temperatures are only expected to fall into the low-to-mid 70s.
* WHERE...Portions of south central Indiana and north central, northwest, and south central Kentucky.
* WHEN...From 1 PM EDT /noon CDT/ Tuesday to 8 PM EDT /7 PM CDT/ Thursday.
* IMPACTS...Prolonged hot temperatures and high humidity may cause heat illnesses.