* WHAT...For the Heat Advisory, heat index values up to 110. For the Extreme Heat Warning, dangerously hot conditions with heat index values of 110 or greater expected.
* WHERE...Portions of southeast Arkansas, northeast Louisiana, and central, north central, northwest, southwest, and west central Mississippi.
* WHEN...For the Heat Advisory, until 10 AM CDT Wednesday. For the Extreme Heat Warning, from 10 AM to 9 PM CDT Wednesday.
* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.
* ADDITIONAL DETAILS...The threat for dangerous heat continues through the end of this week. Additional heat advisories may be needed.