* WHAT…Heat index values up to 95 to 105.
* WHERE…Portions of central, east central, southeast, and west
central Illinois.
* WHEN…Until 7 PM CDT this evening.
* IMPACTS…Hot temperatures and high humidity may cause heat
illnesses.
* ADDITIONAL DETAILS…As thunderstorms move in with the rains,
temperatures and heat indices will drop quickly, ending the heat
threat late this afternoon.