* WHAT...For the first Heat Advisory, heat index values 100 to 105 expected. For the second Heat Advisory, heat index values 105 to 110 expected.
* WHERE...Portions of central and west central Illinois.
* WHEN...For the first Heat Advisory, from 1 PM this afternoon to 7 PM CDT this evening. For the second Heat Advisory, from 11 AM Monday to midnight CDT Thursday Night.
* IMPACTS...Hot temperatures and high humidity may cause heat illnesses.