396 WWUS73 KLSX 300620 NPWLSX URGENT - WEATHER MESSAGE National Weather Service St Louis MO 120 AM CDT Tue Jun 30 2026 ILZ058>060-064-065-070-095>099-MOZ018-019-026-027-034>036-041-042-047>052-059-072>074-084-085-099-302130- /O.UPG.KLSX.HT.Y.0002.000000T0000Z-260704T0300Z/ /O.EXA.KLSX.XH.W.0001.000000T0000Z-260704T0300Z/ Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Marion IL- Adams IL-Brown IL-Pike IL-Calhoun IL-Jersey IL-Knox MO-Lewis MO- Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO-Audrain MO-Moniteau MO-Cole MO-Osage MO-Callaway MO-Montgomery MO-Lincoln MO-Gasconade MO-Crawford MO-Washington MO-Saint Francois MO-Iron MO-Madison MO-Reynolds MO- Including the cities of Bowling Green, Pittsfield, Salem, Columbia, Centralia, Farmington, Quincy, Mount Sterling, Hannibal, Vandalia, Jefferson City, Fulton, Litchfield, and Mexico 120 AM CDT Tue Jun 30 2026 ...EXTREME HEAT WARNING IN EFFECT UNTIL 10 PM CDT FRIDAY... * WHAT...Dangerously hot conditions with heat index values up to 107. * WHERE...Portions of south central, southwest, and west central Illinois and central, east central, northeast, and southeast Missouri. * WHEN...Until 10 PM CDT Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. 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. && $$ ILZ069-074-079-100>102-MOZ060>065-075-302130- /O.CON.KLSX.XH.W.0001.000000T0000Z-260704T0300Z/ Clinton IL-Washington IL-Randolph IL-Madison IL-Saint Clair IL- Monroe IL-Warren MO-Saint Charles MO-Franklin MO-Saint Louis MO- Saint Louis City MO-Jefferson MO-Sainte Genevieve MO- Including the cities of Sparta, Cahokia, Union, Belleville, Sullivan, Edwardsville, Chester, Saint Charles, Washington, Saint Louis, and Alton 120 AM CDT Tue Jun 30 2026 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 10 PM CDT FRIDAY... * WHAT...Dangerously hot conditions with heat index values up to 111. * WHERE...Portions of south central and southwest Illinois and east central and southeast Missouri. * WHEN...Until 10 PM CDT Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ Kimble