Non-Precipitation Warnings / Watches / Advisories
Issued by NWS St. Louis, MO
Issued by NWS St. Louis, MO
680 WWUS73 KLSX 040826 NPWLSX URGENT - WEATHER MESSAGE National Weather Service St Louis MO 326 AM CDT Fri Sep 4 2026 ILZ058>060-064-065-069-070-074-079-095>099-MOZ018-019-026-027- 034>036-041-042-047>052-059-060-062-072>075-084-085-099-042330- /O.CON.KLSX.XH.W.0004.000000T0000Z-260906T0100Z/ 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-Boone MO-Audrain MO-Moniteau MO-Cole MO-Osage MO-Callaway 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 Hannibal, Centralia, Sullivan, Salem, Mount Sterling, Jefferson City, Columbia, Bowling Green, Union, Mexico, Fulton, Vandalia, Chester, Washington, Quincy, Farmington, Litchfield, Sparta, and Pittsfield 326 AM CDT Fri Sep 4 2026 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM CDT SATURDAY... * 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 8 PM CDT Saturday. * 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. && $$ ILZ100>102-MOZ061-063>065-042330- /O.CON.KLSX.XH.W.0004.000000T0000Z-260906T0100Z/ Madison IL-Saint Clair IL-Monroe IL-Saint Charles MO-Saint Louis MO-Saint Louis City MO-Jefferson MO- Including the cities of Saint Louis, Alton, Edwardsville, Cahokia, Belleville, and Saint Charles 326 AM CDT Fri Sep 4 2026 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM CDT SATURDAY... * WHAT...Dangerously hot conditions with heat index values up to 110. * WHERE...In Illinois, Madison IL, Monroe IL, and Saint Clair IL Counties. In Missouri, Jefferson MO, Saint Charles MO, Saint Louis City MO, and Saint Louis MO Counties. * WHEN...Until 8 PM CDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. PRECAUTIONARY/PREPAREDNESS ACTIONS... People in the Saint Louis Metropolitan Area can get information about cooling centers or energy assistance related to the excessive heat by calling the United Way of Greater Saint Louis at 800-427-4626, or if calling from a land line phone dial 2-1-1. You can also call Cool Down Saint Louis at 314-241-7668. && $$ Pfahler