* WHAT...Daily heat index values up to 100-106 expected.
* WHERE...Portions of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri.
* WHEN...From 10 AM CDT /11 AM EDT/ Monday to 8 PM CDT /9 PM EDT/ Friday.
* IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
* ADDITIONAL DETAILS...Heat index values will be closer to 100 on Monday. Low rain chances on Friday may provide limited relief.