* WHAT...For the Heat Advisory, heat index values up to 109. For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 111 expected.
* WHERE...Portions of central, north central, northwest, southwest, and west central Mississippi.
* WHEN...For the Heat Advisory, until 9 PM CDT Monday. For the Extreme Heat Warning, from 10 AM to 9 PM CDT Tuesday.
* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.