* WHAT...For the first Heat Advisory, heat index values up to 102. For the second Heat Advisory, heat index values up to 105 expected.
* WHERE...Portions of central, east central, southeast, and west central Illinois.
* WHEN...For the first Heat Advisory, until 7 PM CDT this evening. For the second Heat Advisory, from noon to 8 PM CDT Tuesday.
* IMPACTS...Hot temperatures and high humidity may cause heat illnesses.