Heat Advisory

* WHAT...For the Extreme Heat Warning, dangerously hot conditions with heat index values around 115. For the Heat Advisory, heat index values up to 109 expected.

* WHERE...Hamilton, Jefferson, Saline, and Wayne IL Counties.

* WHEN...For the Extreme Heat Warning, until 7 PM CDT this evening. For the Heat Advisory, from 7 PM this evening to 7 PM CDT Tuesday.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.