From the National Weather Service Office in Springfield:

STRONG TO SEVERE THUNDERSTORMS WILL DEVELOP THIS AFTERNOON INTO
THIS EVENING. SEVERE STORMS WILL BE CAPABLE OF PRODUCING LARGE
HAIL TO THE SIZE OF GOLF BALLS...DAMAGING WINDS TO 70 MPH...AND
ISOLATED TORNADOES.

THE GREATEST RISK FOR SEVERE WEATHER WILL OCCUR BETWEEN 2 PM AND
10 PM WITH THE HIGHEST RISK FOR TORNADOES ACROSS FAR
SOUTHWESTERN MISSOURI.

ADDITIONAL HEAVY RAINFALL OF 1 TO 4 INCHES COULD LEAD TO FLASH
FLASH FLOODING AND RIVER FLOODING. THE GREATEST RISK FOR
SIGNIFICANT FLASH FLOODING WILL BE TONIGHT. A FLASH FLOOD WATCH
IS IN EFFECT THROUGH TONIGHT.