The National Weather Service in Memphis has issued an Excessive Heat Warning for the regions encompassing parts of East Arkansas, North Mississippi, Southeast Missouri, and West Tennessee. The alert, active from 11 AM to 8 PM CDT today, signals the onset of “dangerously hot conditions with heat index values up to 110 degrees expected.” These conditions pose a severe threat to residents’ health, prompting the NWS to advise staying indoors, hydrating, and checking on vulnerable population segments.