* WHAT...Daily peak heat index values from around 105 degrees, up to near 110 degrees expected. The hottest day will be Monday.
* WHERE...All of southeast Missouri, and neighboring portions of southwest Illinois and far western Kentucky.
* WHEN...From 11 AM Sunday to 7 PM CDT Tuesday.
* IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
* ADDITIONAL DETAILS...The Advisory is in effect along and west of a line from Mount Vernon, Illinois, to Murray, Kentucky.