...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING... ...EXTREME HEAT WARNING IN EFFECT FROM 1 PM TO 8 PM CDT FRIDAY... * WHAT...For the Heat Advisory, heat index values up to 108. For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 115 expected. * WHERE...Portions of central, eastern, north central, southeast, and southwest Arkansas. * WHEN...For the Heat Advisory, until 8 PM CDT this evening. For the Extreme Heat Warning, from 1 PM to 8 PM CDT Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. 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. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. &&