* WHAT...FOR THE HEAT ADVISORY, HEAT INDEX VALUES UP TO 104EXPECTED. FOR THE EXTREME HEAT WATCH, DANGEROUSLY HOT CONDITIONS WITH HEAT INDEX VALUES UP TO 108 POSSIBLE.

* WHERE...ALCORN, BENTON MS, PRENTISS, TIPPAH, AND TISHOMINGO COUNTIES.

* WHEN...FOR THE HEAT ADVISORY, FROM 11 AM THIS MORNING TO 11 AM CDT MONDAY. FOR THE EXTREME HEAT WATCH, FROM MONDAY MORNING THROUGH THURSDAY EVENING.

* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING EXTREME HEAT AND HIGH HUMIDITY EVENTS. HOT TEMPERATURES AND HIGH HUMIDITY MAY CAUSE HEAT ILLNESSES.