Extreme Heat Warning: Scott; Morgan; Sangamon; Christian; Macon; Moultrie; Douglas; Coles; Edgar; Shelby; Cumberland; Clark; Effingham; Jasper; Crawford; Clay; Richland; Lawrence

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Extreme Heat Warning — Scott; Morgan; Sangamon; Christian; Macon; Moultrie; Douglas; Coles; Edgar; Shelby; Cumberland; Clark; Effingham; Jasper; Crawford; Clay; Richland; Lawrence Severity: Severe. Certainty: Likely. * WHAT...For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 105. For the Heat Advisory, heat index values up to 100 expected. * WHERE...Portions of central, east central, southeast, and west central Illinois. * WHEN...For the Extreme Heat Warning, until 7 PM CDT Friday. For the Heat Advisory, from 11 AM to 7 PM CDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.