Non-Precipitation Warnings / Watches / Advisories
Issued by NWS St. Louis, MO
Issued by NWS St. Louis, MO
190 WWUS73 KLSX 260540 NPWLSX URGENT - WEATHER MESSAGE National Weather Service St Louis MO 1240 AM CDT Sun Jul 26 2026 MOZ041-042-047>050-262045- /O.NEW.KLSX.XH.W.0002.260726T1600Z-260728T0200Z/ /O.EXT.KLSX.HT.Y.0005.000000T0000Z-260726T1600Z/ Boone MO-Audrain MO-Moniteau MO-Cole MO-Osage MO-Callaway MO- Including the cities of Jefferson City, Mexico, Fulton, and Columbia 1240 AM CDT Sun Jul 26 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM THIS MORNING TO 9 PM CDT MONDAY... ...HEAT ADVISORY NOW IN EFFECT UNTIL 11 AM CDT THIS MORNING... * WHAT...For the Heat Advisory, heat index values up to 101. For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 110 expected. * WHERE...Audrain MO, Boone MO, Callaway MO, Cole MO, Moniteau MO, and Osage MO Counties. * WHEN...For the Heat Advisory, until 11 AM CDT this morning. For the Extreme Heat Warning, from 11 AM this morning to 9 PM CDT Monday. * 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. 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. && $$ ILZ058>060-064-065-069-070-074-079-095>099-MOZ018-019-026-027- 034>036-051-052-059-060-062-072>075-084-085-099-262045- /O.UPG.KLSX.HT.Y.0005.260726T1600Z-260728T0200Z/ /O.NEW.KLSX.XH.W.0002.260726T1600Z-260728T0200Z/ Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL- Marion IL-Washington IL-Randolph 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-Montgomery MO-Lincoln MO-Gasconade MO-Warren MO-Franklin MO-Crawford MO-Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO-Madison MO-Reynolds MO- Including the cities of Pittsfield, Sullivan, Chester, Sparta, Litchfield, Quincy, Salem, Union, Washington, Farmington, Vandalia, Centralia, Bowling Green, Hannibal, and Mount Sterling 1240 AM CDT Sun Jul 26 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM THIS MORNING TO 9 PM CDT MONDAY... * WHAT...Dangerously hot conditions with heat index values up to 111 expected. * WHERE...Portions of south central, southwest, and west central Illinois and east central, northeast, and southeast Missouri. * WHEN...From 11 AM this morning to 9 PM CDT Monday. * 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. && $$ ILZ100>102-MOZ061-063>065-262045- /O.UPG.KLSX.HT.Y.0005.260726T1600Z-260728T0200Z/ /O.NEW.KLSX.XH.W.0002.260726T1600Z-260728T0200Z/ Madison IL-Saint Clair IL-Monroe IL-Saint Charles MO-Saint Louis MO-Saint Louis City MO-Jefferson MO- Including the cities of Edwardsville, Belleville, Cahokia, Saint Charles, Saint Louis, and Alton 1240 AM CDT Sun Jul 26 2026 ...EXTREME HEAT WARNING IN EFFECT FROM 11 AM THIS MORNING TO 9 PM CDT MONDAY... * WHAT...Dangerously hot conditions with heat index values up to 112 expected. * WHERE...In Illinois, Madison IL, Monroe IL, and Saint Clair IL Counties. In Missouri, Jefferson MO, Saint Charles MO, Saint Louis City MO, and Saint Louis MO Counties. * WHEN...From 11 AM this morning to 9 PM CDT Monday. * 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. People in the Saint Louis Metropolitan Area can get information about cooling centers or energy assistance related to the excessive heat by calling the United Way of Greater Saint Louis at 800-427-4626, or if calling from a land line phone dial 2-1-1. You can also call Cool Down Saint Louis at 314-241-7668. && $$ Elmore