...HEAT ADVISORY IN EFFECT FROM NOON TO 8 PM CDT TUESDAY... WHAT...Heat index values around 105 expected. WHERE...All of southeast Missouri, and adjacent portions of southern Illinois and western Kentucky. The Advisory is in effect for counties along and west of the Mississippi River. WHEN...From noon to 8 PM CDT Tuesday. IMPACTS...Hot temperatures and high humidity may cause heat illnesses to occur. 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. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. 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.