...EXTREME HEAT WARNING REMAINS IN EFFECT FROM NOON CDT /1 PM EDT/ TODAY TO 8 PM CDT /9 PM EDT/ TUESDAY... ...EXTREME HEAT WATCH REMAINS IN EFFECT FROM TUESDAY EVENING THROUGH WEDNESDAY EVENING... * WHAT...For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 115 expected. For the Extreme Heat Watch, dangerously hot conditions with heat index values up to 110 possible. * WHERE...Portions of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri. * WHEN...For the Extreme Heat Warning, from noon CDT /1 PM EDT/ today to 8 PM CDT /9 PM EDT/ Tuesday. For the Extreme Heat Watch, from Tuesday evening through Wednesday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Isolated to widely scattered thunderstorms may provide limited relief from the heat through today. 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. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. 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. Monitor the latest forecasts and warnings for updates. &&