Moderate Expected Likely Heat Advisory Heat Advisory issued July 20 at 10:52PM CDT until July 21 at 8:00PM CDT by NWS Tulsa OK Jul 21, 12:00 PM → Jul 21, 8:00 PM WHAT: Heat index values up to 110 expected. WHERE: In Arkansas, Benton, Carroll, Madison, Northern Crawford,Washington AR, and Northern Franklin Counties. In Oklahoma, AdairCounty. WHEN: From noon to 8 PM CDT Tuesday. IMPACTS: Heat related illnesses are possible especially impactingthose not acclimated to the conditions or those performingstrenuous activities. + Read More Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. Updated: Jul 21, 7:21 AM Source: NWS Alert