Extreme Heat Warning: Jefferson; Perry; Franklin; Hamilton; Jackson; Williamson; Saline; Gallatin; Union; Johnson; Pope; Hardin; Alexander; Pulaski; Massac; Fulton; Hickman; Carlisle; Ballard; McCracken; Graves; Livingston; Marshall; Calloway; Crittenden; Lyon; Trigg; Caldwell; Union; Webster; Hopkins; Christian; Muhlenberg; Todd; Perry; Bollinger; Cape Girardeau; Wayne; Carter; Ripley; Butler; Stoddard; Scott; Mississippi; New Madrid

source: us-gov-api (us-gov-api:noaa-weather)published 2026-07-20 23:24ingested 2026-07-21 08:27

extract

Extreme Heat Warning — Jefferson; Perry; Franklin; Hamilton; Jackson; Williamson; Saline; Gallatin; Union; Johnson; Pope; Hardin; Alexander; Pulaski; Massac; Fulton; Hickman; Carlisle; Ballard; McCracken; Graves; Livingston; Marshall; Calloway; Crittenden; Lyon; Trigg; Caldwell; Union; Webster; Hopkins; Christian; Muhlenberg; Todd; Perry; Bollinger; Cape Girardeau; Wayne; Carter; Ripley; Butler; Stoddard; Scott; Mississippi; New Madrid Severity: Severe. Certainty: Likely. * WHAT...For the Heat Advisory, heat index values of 100 to 106. For the Extreme Heat Warning, dangerously hot conditions with heat index values of 110 to 116. * WHERE...Portions of southern Illinois, western Kentucky, and southeast Missouri. * WHEN...For the Heat Advisory, until 11 AM CDT Tuesday. For the Extreme Heat Warning, from 11 AM to 7 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.

retained text

The historical document was shared with another weather alert and cannot be attributed to this record. The original extract is preserved above; the exact alert link was not retained.