Moderate Expected Likely Heat Advisory Heat Advisory issued August 11 at 11:47PM CDT until August 14 at 8:00PM CDT by NWS Tulsa OK Aug 11, 11:47 PM → Aug 14, 8:00 PM WHAT: Heat index values from 105 to 110 each afternoon andovernight lows from the mid 70s to lower 80s expected. WHERE: All of northwest and west central Arkansas and eastcentral, northeast, and southeast Oklahoma. WHEN: Until 8 PM CDT Friday. 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: Aug 12, 7:45 AM Source: NWS Alert