Severe Thunderstorm Warning issued August 12 at 4:22AM CDT until August 12 at 5:15AM CDT by NWS

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 AM CDT FOR SOUTHEASTERN CALHOUN...WESTERN MADISON...SOUTHWESTERN MACOUPIN AND JERSEY COUNTIES IN SOUTHWESTERN ILLINOIS...ST. CHARLES... NORTHEASTERN JEFFERSON...EAST CENTRAL FRANKLIN AND ST. LOUIS COUNTIES IN EAST CENTRAL MISSOURI AND ST. LOUIS CITY... At 421 AM CDT, severe thunderstorms were located along a line