Heat Advisory issued July 21 at 2:48PM CDT until July 21 at 7:00PM CDT by NWS St Louis MO
发布日期：2026-07-21T19:48+00:00
* WHAT...Heat index values up to 107. * WHERE...Portions of south central and southwest Illinois and central, east central, and southeast Missouri. * WHEN...Until 7 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
